Major UK Water Company’s Invests in Anaerobic Digestion of Sewage Sludge

The following article is based on an extract of Wet News (November 2008) the original article is about work done by May Gurney to refurbish and improve the current Severn Trent Coalport, Newport and Monkmoor, anaerobic digesters which digest sewage sludge:

AS NEW energy and environmental directives come into action, the UK sewage treatment industry is increasingly under the spotlights.

Many examples of renewable energy projects by the gigantic water firms and their framework partners are reported to be on their way which will be almost guaranteed to draw much interest from politicians, rivals and the public. Combined heat and power (CHP) is at the forefront in the UK Water Industry, manufacturing heat and electricity from a single input source that might otherwise be burned off as waste.
Severn Trent Water and May Gurney completed an intensive project to install new anaerobic digestion technology on 3 of Severn Trent's sites. The water company has been working in cooperation with contractor May Gurney, a consultant in biogas optimisation, which has been carrying out these works since 2007.

Last summer when the article was writted it was getting near completion on the last site located at Coalport, Shropshire. The other 2 sites, at Newtown ( Powys ) and Monkmoor, Shrewsbury ( Shropshire ), were handed back this summer and are manufacturing biogas from their improved digester systems and using it to fuel CHP units.

The work at Newtown, Monkmoor and Coalport has enabled the sites to scale back their carbon footprints and produce green energy. Doing so will also prove very much a bargain as Severn Trent will become more self-sufficient and save heavily on external energy suppliers' ever growing costs.

At Coalport alone, the median daily sludge feed to the digesters is 129m3, which produces a mean of 2,640m3 of biogas each day - enough to power the on-site CHP units that generate electricity to run the site as well as the heat to operate the boilers and continue the digestion process.

The authors of the article see a huge future for biogas.
"For all the same environmental, legislative and commercial reasons that have inspired Severn Trent Water, others will certainly follow suit," and they are saying, much more positive things about Anaerobic Digestion, as follows:

"We are happy about the possibilities for expansion and development in this area. A complete industry is expanding round the re-emergence of anaerobic digestion, which enables waste material, eg food waste, to be used as a resource to provide replenish-able energy.”

"The giant increase in available volumes of biogas, rising oil costs, increasing demand for new renewable fuels and bio energy will excite investment in biogas utilization technologies which will see biogas refining to be used as auto fuels or injection into the nation's grid.”

"This latter opportunity will definitely not have escaped the notice of water firms. While sites with anaerobic digestion processes already benefit from self-sufficiency by manufacturing their own energy, we need only look to states like Sweden to see examples of how extra revenue can be generated by selling electricity and bio-methane and at the same time make a contribution to govt. climate change, waste management and wider environmental objectives."

In the field of renewable resources the authors say that Severn Trent is sure to be at the forefront as the industry moves in this direction. As the number 1 producer of renewable energy in the water sector, Severn Trent is progressing with its investment programme to further develop greener energy.

Having set itself the target of just about doubling self-generation from renewable resources to thirty percent of its total energy use by 2013, Severn Trent has clear plans to develop usage of existing technologies as well as introduce new and emerging technologies.

Severn Trent operates thirty CHP plants across its area using methane gas produced from the sewage treatment process. In 2005, this accounted for 51 percent of all clean energy derived from sewage gas in the United Kingdom and about 1.3% of all clean energy generated in the United Kingdom.

Current investment plans are reported to include schemes to increase the use of CHP plants across the region, install more water turbines in its dams, generate power from energy crops, and generate power from turbines at acceptable locations.

Furthemore, that investment is reported to be ongoing as a consequence of the success of the Monkmoor, Newtown and Coalport projects, the company has, we undertand, been in advanced talks with May Gurney about another 9 CHP projects.

More about May Gurney.

Biogas Plant Gasholders and Managing CDM In-house

The following article is based on an extract of Wet News (November 2008 issue)the original article is about work done by May Gurney to refurbish and improve the current Severn Trent Coalport, anaerobic digester which digests sewage sludge.

I was particularly interested in the information about the biogas gas holder, which they also call a gas-bag due to its flexible construction. We are told that, the installation of a new, larger gas bag will add to efficiency of the site.

The new spherical gas holders are the most immediate visible sign of the state of the art solutions that have been implemented at the Severn Trent sites. These are golfing ball white spheres which are created from 2 polyester and PVC-based skins, the outer being inflated by air pressure and holds up the structure. The inner skin is postponed inside he outer skin and contains the biogas.

The wonderful thing about these new biogas holders is that they are made from materials which are immune to the corrosive nature of the unscrubbed biogas, which with its hydrogen sulphide content produces feeble sulphuric acid on contact with the water in the saturated gas. This would simply severely damage an unprotected steel container.

The writer informs us that there are apparent savings from a gas holder bag compared against a traditional rigid gas holder. A traditional steel gas holder also needs a significant civil structure which is full of water and contains what amounts to a steel bell, while a gas bag simply sits on a concrete base. The bag also needs less upkeep and isn't subject to freezing in winter. This produces a far smaller carbon footprint and a reduction in capital and operational spend.

The new gas holders are also in truth crucial pieces of process plant, instead of the mere storage vessels their name advocates. They maintain a consistent system pressure needed for the proper operation of engines, boilers and waste gas flare stacks. They also have level instruments that measure the height and volume of the inner gas bag to provide signals for process control, so they have to be simple, trustworthy and tough.

In-house Design Process and Safety

We are also told that further efficiencies and economies have been driven into the Severn Trent project thanks to the proven fact that May Gurney handled the complete design process in-house, from taking the outline design produced by Severn Trent's framework designer, thru to completion. While many main contractors might outsource the design part of such projects to an external consultant, May Gurney has its own expert team, so both reducing cost - making economies of scale and avoiding passing on fee-on-fee margins to the customer - and also reducing risk thanks to better control of safety in design risk assessments. Derek Shepherd is May Gurney's design chief, who is in charge of design coordination.

He explains the benefits of the full service approach : "By taking more control for Design Management upon themselves, and not passing it to a third party, they are hey believe particularly assured of coverage in all sides of the projects.

There's less risk, Derek points out, and by not having to confirm someone else's design we also save time without doubling up effort." Better still, the in-house design team have made a contribution to better environmental performance.

Derek Shepherd believes that, by having an independent and unbiased designer, they managed to identify all products, materials and providers based on performance and an overall design approach to the system. This was instead of it being based on any existing commercial relations.

Source: Wet News

Biomethane Best EU practices from the Karamel Newsletter

Biomethane: which are best practices in Europe?

From the collection of relevant feedstocks to end-uses of biomethane, what can be learnt from the main European experiences? Pierre Hirtzberger, project coordinator of BIOGASMAX, will provide responses at the European Conference on Biomethane Fuel, 7th-9th of September in Göteborg. Come and join this major event on biomethane fuel!
learn more ...

Germany: new legal tools on grid injection

The European Institute for Energy Research (EIFER), based in Karlsruhe, has entered in the « Biogasmax Circle of Friends ».

EIFER presented, 16th of June, to BIOGASMAX partners the legal framework regarding the grid injection of biomethane in Germany. Amongst the 4000 biogas plants running today in Germany, 20 plants inject biomethane into the natural gas grid (plus 20 sites in project).

Following the new legal framework adopted beginning of 2009, biomethane production plant should be increasing in the next few years. The new national energy policy has set up ambitious goals towards biomethane development: 6 billion m3 of biométhane in 2020 (6% of the national needs of gas), 10 billion m3 in 2030 (10% of the national needs of gas)..learn more ...

France/Czech Rep.: European Commission approves state aid to transport sector
Brussels, Belgium, 25th May 2009; The European Commission has announced not to raise any objections under the EC Treaty state aid rules to the financial support of the transport sector in France. The French approach particularly supports urban CNG buses and service trucks and also mentions biomethane. The Commission also decided positively on the Czech state aid request which supports projects for constructing and upgrading alternative refuelling stations for public transport operators.

The official decision by the Commission to authorize the French state aid programme was already made on 17th December 2008 (see attachment), but the original wording of the Commission's approval was not published until 25th May. Starting 1st January 2009, henceforward, the French state is able to financially support the French transport sector until end of December 2014.
learn more ...

Financing Methods for UK Government Biogas Plants

I am frequently being asked to include more information in the blog and at the web site (www.anaerobic-digestion.com) about financing and contracting routes for the larger waste feedstock Anaerobic Digestion Plants. So here is some guidance based the Defra WIP compiled programme information a few years back.


Development of any Advanced Biological Treatment (ABT) Plant will involve capital expenditure of several million pounds. There are a number of potential funding sources for Local Authorities planning to develop such facilities, including:

Capital Grants: general grants may be available from national economic initiatives and EU structural funds;

Prudential Borrowing: the Local Government Act 2003 provides for a new 'prudential' system of capital finance controls;

PFI Credits and Private Sector Financing: under the Private Finance Initiative a waste authority can obtain an annual subsidy from central government through a Special Grant;

Other Private-Sector Financing: A contractor may be willing to enter a contract to provide a new facility and operate it. The contractor's charges for this may be expressed as gate fees; and

Existing sources of local authority funding:
for example National Non-Domestic Rate payments (distributed by central government), credit (borrowing) approvals, local tax raising powers (council tax), income from rents, fees, charges and asset sales (capital receipts). In practice there will be limited opportunity to take advantage of these.

IBBK International Biogas Events September/October 2009

IBBK is offering two additional international events for people working in the biogas industry in September and October 2009:

1) INTERNATIONAL BIOGAS TRAINING COURSE (5-Days) taking place 28 September - 2 October 2009 traditionally at the University of Hohenheim, Stuttgart, Germany The course coves the following topics:
- process of biogas formation
- principles of designing biogas plants- applied technology
- safety issues
Please, see our leaflet (as of June 2009) and Registration PDF
http://www.biogas-training.com/course2009

2) INTERNATIONAL BIOGAS STUDY TOUR (4 Days)
23 - 26 September 2009, starting in Berlin and ending in the area of Cologne, Germany Participants will visit biogas plants and manufacturers in Germany.
Please, see our leaflet (as of June 2009) and Registration PDF:
http://www.biogas-training.com/studytour2009

We offer special rates for booking both events. The number of participants is limited - therefore we recommend an early registration.

For more details please follow the links above or visit our homepage www.biogas-centre.com and don't hesitate to contact us, if you have any further questions.

UK Government Encourages Itself to Produce Renewable Energy in EA News Item

The Public sector has been urged to generate renewable energy to cut costs and emissions.

The Environment Agency and Partnerships for Renewables today urged public sector organisations in the UK to consider using their land and property to generate renewable energy, which has the potential to provide power for over 1.5 million households.

Councils and agencies could provide power for over 1.5 million households

The Environment Agency and Partnerships for Renewables today urged public sector organisations in the UK to consider using their land and property to generate renewable energy, which has the potential to provide power for over 1.5 million households.

In the midst of the recent focus on economic and political crises, the two organisations are using World Environment Day (5 June) to encourage the public sector to tackle the impending crisis of climate change and set an example to others by taking positive action.

The organisations have calculated that public sector organisations in the UK could generate up to some 3 gigawatts of power - enough to power all the households in Newcastle, Birmingham, Sheffield, Leeds, Liverpool and Doncaster combined and save 3m tonnes of carbon dioxide per year - by installing renewable energy technologies such as wind turbines and hydropower schemes on their land.

Public sector bodies own more than 10 per cent of the land in the UK including tens of thousands of buildings and over one million hectares of land. Despite this, only a tiny fraction of the total amount of green energy which the UK is capable of producing comes from renewable energy projects on public sector property.

Although many public sector bodies are already beginning to investigate how they can utilise their land to generate renewable energy, the Environment Agency and Partnerships for Renewables are calling for more organisations to install clean energy technologies to help reduce carbon emissions in addition to generating revenue from the sale of electricity and saving the taxpayer money.

Last year the Secretary of State for the Department of Energy and Climate Change, Ed Miliband, and environmental groups highlighted the need for public sector bodies to take a lead role in the fight against climate change and promote green energy.

The Environment Agency is urging other public sector bodies to follow its example after its announcement in November 2008 to build up to 80 wind turbines on Environment Agency owned land across the country, developing around 200 megawatts of renewable energy capacity - enough to power 90,000 households and save around 200,000 tonnes of carbon dioxide every year. In addition the turbines will generate up to £2.4 million of revenue every year - money that will be ploughed back into protecting and improving the environment, and adapting to climate change. Other organisations such as British Waterways have also announced similar plans.

The Environment Agency recently ranked as the top green UK public sector organisation in the annual Sunday Times Green List. 99 per cent of electricity used by the Environment Agency is from renewable sources and stringent targets are in place for reducing energy and water. Recycling facilities are available in the offices covering 20 different types of waste. The organisation’s green travel policies have led to a mileage reduction of some 8.9 million miles over the past two years alone and in three years, the Environment Agency has managed to reduce its overall carbon footprint by 14 per cent and water use by ten per cent.

Environment Agency Head of Climate Change and Sustainable Development Tony Grayling said:

"Investment in green technology such as wind turbines not only help cut carbon emissions and secure more home grown energy - they also make financial sense to those involved and ultimately save the taxpayer money.

"The pressures businesses and the public sector are facing may tempt them to cut corners and spend less attention on environmental improvement programmes, but it is now more important than ever before that we look to alternative sources of energy to meet our demands."

Stephen Ainger, Chief Executive of Partnerships for Renewables which was established by the Carbon Trust in 2006, said:

"By embracing and fulfilling its renewable energy potential the UK’s public sector has the opportunity to not only demonstrate strong leadership domestically, in the fight against climate change, it has the opportunity to set the standard for public sector organisations to follow globally. The role of the public sector organisations leading this movement, such as the Environment Agency and British Waterways, should not be underestimated".

Friends of the Earth’s Executive Director Andy Atkins said:

"The public sector has a key role to play in cutting emissions by harnessing the UK’s vast renewable energy potential. Developing green energy could create tens of thousands of new jobs, reduce our dependency of the tyranny of fossil fuels and give this country real influence in the global battle against climate change".

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The vehicle for achieving this investment is Partnerships for Renewables which was set up by Carbon Trust Enterprises in 2006 to work in partnership with the public sector to develop, construct and operate renewable energy projects. By providing a one stop shop for the development of renewable energy projects focused on a project development process tailored to the specific needs of the public sector, Partnerships for Renewables provide a way for Public Sector Bodies to access the economic and environmental benefits associated with renewable energy and contribute towards the fight against climate change without diverting public sector resources away from frontline services.

Scottish Waste and Resources Conference 2009

Sponsored by WRAP and VALPAK

The Scottish Waste and Resources Conference will host the annual 2 day conference, exhibition and awards dinner on 6th and 7th October 2009.

As the title suggests, the partnership event is not exclusive to those working in the waste management industry. At this crucial time in our future development we must engage with the wider resources management sectors.

The conference programme for 2009 features the overall theme of Delivering Zero Waste in Scotland which will provide a pick and mix choice of sessions on key policy updates, new innovations and hearty debate amongst practical participative sessions.

Alongside the conference there is an indoor exhibition which will allow you to meet and discuss your requirements with waste/reprocessing companies and suppliers, providing the ideal networking opportunity.

The Scottish Waste & Resources Awards Dinner, sponsored by Ascot Environmental Ltd and Scotgen (Dumfries) Ltd, will take place on the last evening of the event, 7th October. The purpose of the Scottish Waste and Resources Awards is to acknowledge, reward and celebrate those organisations that have shown an outstanding contribution, through best practice and innovation, to the Scottish waste, recycling and resource management sectors. The 2008 dinner was attended by over 400 people including leading figures from local authorities, private sector organisations, professional bodies and regulators from across Scotland. Nominations for the awards are now open and application forms can be completed online at www.scotwaste.org.

Whether you have been before or not, the Scottish Waste & Resources Conference 2009 promises to be an event not to be missed and a one-stop shop for you, your organisation and your colleagues and one that will keep you ahead of the critical factors influencing our industry.

For priority information on the conference programme or more details on sponsorship opportunities, exhibition of the awards dinner then please contact the Operations Team on (01604) 620426 or email events@ciwm.co.uk .

BioPower Generation Conference USA, Chicago, 8 - 9 July 2009

In a report published by Biomass Magazine it states that the U.S. Interior Department plans to invest $15 million in 55 biomass projects in 12 states. It goes on to say that “the projects have the potential to provide additional economic benefits to support local or regional employment through post-treatment use of biomass in wood products or power generation.”

Leading utilities, project developers, policy makers and investors plan to meet in Chicago on the 8 – 9 July for the 5th BioPower Generation Conference. Experts already confirmed include:

- Reed Wills, President, ADAGE

- Gary Evans, Chief Executive Officer, Green Hunter

- Leonard Fagan, Vice President, Engineering and Technology, American Renewables

- Andrew Singer, Senior Vice President, Constellation New Energy

- Ron Flax-Davidson, Vice President Business Development, Central Hudson Gas & Electric Corp

- Todd Alexander, Partner, Chadbourne & Parke

- Art Holland, Vice President, Utility and Risk Services, Pace

- William Johnson, Manager Biofuels Development, Alliant Energy

Click here to download the event brochure.

Ensure you quote BPGEM4 when booking.

Attendees will gain valuable insight into the biomass power generation opportunities in the U.S. and will hear best practice case studies from 10 project developers and utilities. Your questions will be answered at BioPower Generation USA including:

- What do recent policy developments mean for the biopower industry?

- What is the key potential for large scale biomass power production?

- What are the key criteria in developing a biopower portfolio?

- How can producers access financing in the current economic climate?

- What are the latest technologies to improve biopower efficiency?

- How can sustainable feedstock supplies be sourced?

- What are the latest developments in high yield energy crops?

- What criteria are necessary for efficient transmission & distribution?

- How can agricultural, forestry and paper sectors benefit?


Previous attendees include:

Alstom Power, Babcock & Brown, Biopower International, Bioverda Iberia, BP Alternative Energy, Camco Chemical, Carbon Trust, Ceres, CEZ, Chevron Technology Ventures, Contango Markets, Danish Energy Agency, Desmet Engineers & Contractors, Dong Energy, Drax Power, EBICo, EC Bioenergie, Ecofys, Econcern, Ecosecurities, EDF, Electrabel, Enel, EniPower, EnviTech Biogas, Eon Benelux, EOn UK, Essent Energy Trading, Fortum, GE Energy Financial Services, Harbert Power, Kfw Entwicklungsbank, KMW Energi, Mott MacDonald, MW Power, Nidera, Nord/LB, Norsk Vesk, Shell Global Solutions, RWE, UK Trade & Investment, Vattenfall, Veolia, Wärtsilä

New Web Site from Xergi Biogas Provides Insight Into AD Life Cycle Assessments

Xergi - The Biogas Plant Contractor, contacted me recently to announce their new web site. I like the site a great deal, and in particular I recommend their downloadable Life Cycle Assessment report which looks at the relative whole life environmental benefits of different Anaerobic Digestion feed stocks.

The report is titled:

Life Cycle Assessment of Biogas from Maize silage and from Manure - for transport and for heat and power production under displacement of natural gas based heat works and marginal electricity in northern Germany

Please note that the Life Cycle Assessment is being reviewed. The final Assessment will be issued after completion of review, we are told.

However, the report is published in its 2nd draft, dated June 21st 2007. The authors are Kathrine Anker Thyø and Henrik Wenzel of the German Institute for Product Development.

An extract from the summary follows, but there are a lot of data and other information in this free report, making it worth a visit to their web site at the link below, for anyone seeking to decide which are the greenest options for AD plant projects.

Biogas based on manure is not an alternative strongly correlated to the other bioenergy scenarios, because it does not include any utilization of agricultural land. However, since it provides the same services to society as the other scenarios, it still compares to them and should b included in the overall prioritisation of which type of bioenergy technology society should promote with subsidies and other incentives.

The conclusion of this comparison is unambiguous: biogas from manure implies by far the highest reduction of greenhouse gas emissions per unit of services provided to society. This being due to the fact that it implies CO2 reductions not only from the fossil fuel replacement by the generated biogas, but equally significantly from the reduce methane emissions from manure storage, reduced nitrous oxide emissions from soil application of the manure and improved plant availability of the nitrogen in the manure.

The brief and overall conclusions on manure based biogas can, thus, be expressed as:

- Biogas from manure stands out as having much higher reduction in greenhouse gas emissions than the other bioenergy types and equal savings in fossil fuels. As cost aspects point to the same direction, manure based biogas should have the highest priority of all the compared bioenergy types.

The other scenarios are strongly correlated by their competition for the same agricultural land. Based on the comparative approach, the LCA shows that environmentally and in terms of fossil fuel savings, energy crops should be prioritised for heat and power purposes either 1) through a preceding biogas generation or 2) by direct incineration or gasification, these pathways leading to almost equal CO2 reductions and fossil fuel savings. Energy crops converted directly into a transport fuel implies significantly lower CO2 reductions due to the energy losses in the conversion processes.

The brief and overall conclusions on maize based biogas can, thus, be expressed as:

Among the compared types of bioenergy requiring agricultural land and energy crops, biogas from maize silage and heat and power from willow imply the highest reductions in greenhouse gas emissions and the highest fossil fuel savings, environmentally and in terms of fossil fuel savings.

More here at the xergi.com web site..

Swedish Co. Helps S Korea Convert Food Waste Into Biogas

By KELLY OLSEN

SEOUL, South Korea (AP) — The South Korean city of Ulsan lets water generated from processing food waste run off into the ocean, which can generate methane gas harmful to the environment.

Now, with the help of a Swedish company, it is going to start converting that waste water into biogas, a type of clean fuel that can be used as power to heat buildings and even power vehicles.

South Korea is looking for ways to increase the use of biogas and other clean energy alternatives amid a push by the government of President Lee Myung-bak to embark on a new development model that emphasizes so-called green growth.

Ulsan, a brawny industrial center of about 1 million people on the country's southeastern coast, saw biogas as an attractive way to deal with a burgeoning waste problem as well as coming tighter government regulations.

"Ulsan is running out of waste disposal sites to cover all the garbage that comes out from the city," municipal official Park In-muk said Thursday. "When garbage is processed into compost, it creates waste water," he said, which the city has been letting it flow into the ocean.

The dumping of waste water generated by the processing of leftover food into the sea, however, will be banned from 2013, according to the Ministry of Land, Transport, and Maritime affairs.

The Ministry of Environment, meanwhile, has increased its budget this year for waste energy, including biogas plants, by five times to 178 billion won ($143 million), according to ministry official Choi Byung-chul.

The government's impending ban on the practice spurred Ulsan, home to big corporations Hyundai Motor Corp. and Hyundai Heavy Industries Co., helped push Ulsan to look for alternatives. It found a partner in Scandinavian Biogas Fuels AB.

The company is based in Sweden, which has been a pioneer in biogas development.

Scandinavian Biogas is investing about 10 million euros to upgrade a wastewater treatment plant in Ulsan and will soon start accepting food and other waste for processing into biogas, said Scandinavian Biogas President and CEO Thomas Davidsson.

"Producing biogas is a very effective way of taking care of the waste" as it can be used for heat, electricity and vehicle fuel, Davidsson said in an interview Wednesday. He was in Seoul to participate in the Seoul Climate Change Expo held in conjunction with the third C40 Large Cities Climate Summit.

Turning food waste into biogas can also contribute to efforts to stop global warming.

Read the rest of this article at The Associated Press.

UK Specification for Compost BSI PAS 100

Bsi Pas 100 Consultation 2009

The nationally recognised UK specification for compost, BSI PAS 100, is being reviewed to ensure that its contents - from product preparation to monitoring and traceability - are fully up-to-date and reflect recent changes in the fast-moving recycling industry.

For anyone that has not heard of the BSI Pas 100 specification let me just explain that the idea behind it (and it is a very successful one too) is that by providing a very high quality standard the market will be strengthened and sellers and users will gain confidence in waste industry compost products.

The idea has been working very well in my view. I believe that AD Composts are being included now for the first time.

If you have views on how this specification should be developed this is a chance to get involved in the development of this standard.

All comments must be in with WRAP before the close of consultation on 30th June 2009.

http://www.wrap.org.uk/composting/bsi_pas_100.html (Wrap consultation)

Anaerobic Digestion Can Be Best Overall Including Being Cheapest Overall

I guess that if you are a long term subscriber this headline will not be a surprise, but it is good to report that others think so too! Read on and find out why.

Processing food waste using anaerobic digestion technology is not necessarily as expensive in relative terms as some councils may think, consultancy Eunomia has claimed.

Speaking at the AD In the City event held in the UK by BiogenGreenfinch last month, senior consultant, Dr Adrian Gibbs, said that using AD to process food waste collected separately could work out cheaper than processing commingled food and green waste together in an in vessel composting plant.

Dr Gibbs explained that a report by Eunomia had found that sending food waste to AD and green waste to windrow composting cost UK councils £9.50 in gate fees per household per year, whereas sending commingled green and food waste to IVC cost £10.80 per household. He also said that just collecting food waste alone and sending it to AD cost £5.50 per household over the same period.

Dr Gibbs admitted that average gate fees for AD facilities - around £55 per tonne - were higher than IVC - which, he quoted as £45 per tonne, but said that "overall AD is cheaper". He also claimed that separate food waste collections also worked out cheaper than mixed collections and said that the number of local authorities which were implementing separate collections had risen from 11 in 2007 to 54 in 2008.

He told the London borough council officers who attended the event, which was set up to explore ways to introduce more AD capacity in London, that - "AD is better than IVC, it's the way to go and it is the one I would watch."

Anaerobic digestion treats food waste in an oxygen-free environment and produces biogas - which can be converted into energy - and a nutrient rich digestate which can be used on farmland. It also has the potential to provide combined heat and power (CHP).

IVC treats green and/or food waste and sometimes card in an enclosed but oxygenated and aerated environment and produces compost. It does not generate energy.

A number of strengths and weaknesses were highlighted for both separate and mixed collection. The plus side to mixed collections included - only needing to use one vehicle, only one bin required and quick and cheap collections.

However, Dr Gibbs explained that the seasons significantly affected what was collected, with garden waste levels dropping significantly in the winter, meaning that feedstock was inconsistent. He also said that the waste had to be processed in an enclosed environment due to Animal By-Product Regulations and this ups the cost of green waste.

Dr Gibbs also pointed out that green waste and food wastes required different collection frequencies. In addition, not all homes have gardens and collecting green and food waste together prevented councils charging for green waste collection. He claimed that separate AD collection reduced net costs for councils and allowed local authorities to charge for garden waste. He added that there is a large quantity of food waste which could potentially be picked up.

Dr Gibbs said AD had a number of strengths, including -

* Internationally proven technology
* Anaerobic Digestion has strong government support in the form of ROCs, a Task Group and feed-in tariffs
* It is a carbon positive technology
* Valuable outputs - biogas and digestate - and
* Leaves green waste to go through the cheaper windrow process.

He said Anaerobic Digestion's only weakness was the lack of facilities in the UK, adding - "AD wins hands-down for organic waste."

US Environmental Power and Xergi Collaboration Extended

Environmental Power, the US a developer which is an owner and operator of clean energy production facilities, which currently through their facilities generates significant quantities of tradeable carbon offset credits, has announced a new deal with Swedish renewables/ anaerobic digestion company Xergi.

The company is dedicated to producing energy that is clean, reliable and secure. Energy that uses waste materials instead of precious resources. Energy that is cost-effective, and available today. Energy that transcends conventional notions of what is possible, and that is for example - anaerobic digestion and biogas.

In their press release they tell us:

Environmental Power Announces Investment by Technology Provider Xergi A/S and New Cooperation Agreement

TARRYTOWN, N.Y., April 28, 2009 – Environmental Power Corporation, a leader in the renewable bioenergy industry, today announced that Xergi A/S of Denmark has entered into a new technology and financial agreement with them better reflecting EPG’s build / own / operate business model.

Under the terms of the new agreement, EPG and its wholly owned subsidiary, Microgy, Inc., will continue to have exclusive licensing rights for Xergi’s anaerobic digester technology in North America, while reducing the license fees on Microgy’s current and future projects. In addition, EPG and Xergi will continue to collaborate on development and use of other technologies and techniques such as the use of micro-organisms and enzymes, which enhance the production of biogas from manure and other organic substrates.

“This investment and agreement demonstrate Xergi’s continued confidence in Environmental Power’s business model and its commitment to support the company’s growth in the renewable energy market in North America. Together with Xergi, they will continue our work on technological advancements that will increase energy production from existing feed stocks, while lowering capital and operating costs for large-scale renewable energy projects,” said Rich Kessel, President and CEO of Environmental Power.

“We look forward to developing innovative solutions that maximize renewable energy from agricultural and other waste organic feed stock.”

“Environmental Power and its subsidiary Microgy have established themselves as the leader in development and commercialization of RNG® projects in North America,” said Frank Rosager, President and CEO of Xergi.

“We look forward to learning more about how to produce the equivalent of Environmental Power’s RNG® product in Europe while supporting Environmental Power’s continued growth in North America. This is truly a mutually beneficial relationship.”

More...

Croatia Goes Big on Biogas with Largest Anaerobic Digestion Plant

Croatia to build largest biogas production plant in Europe

VUKOVAR, May 14. (Hina). A cornerstone laying ceremony was held on Wednesday at Ovcara farm outside the eastern Croatian town of Vukovar for the construction of the future largest biogas production plant in Europe.

The 30 million EUR project has been initiated by the Vukovar-based "Bionergija" company, established by the local Vupik agribusiness and several Croatian and foreign entrepreneurs.

The future plant, which should be built by the end of 2010, is expected to produce 10 megawatts of electrical energy and 11 megawatts of thermal energy daily.

According to a consultant of the Bienergija company, about 700 tonnes of biomass should be ensured daily from agricultural crops on Vupik-owned arable land for the production in the biogas plant.

The factory is to employ some 200 people.

Croatia is expected to raise the biofuels' share in transport fuels to 5.75 percent by 2012 and to 20 percent by 2020, parliamentary deputy Petar Mlinaric said at the ceremony.

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Biogas is the New Racing Fuel with Biomethane Powered Sciroccos

Only last weekend a guy told me that he thought biogas was a "cranky" subject! Well, I think not, and what could be better than this announcement to show such people just how wrong they are!

Biogas-Powered VW Sciroccos Debut at STCC

Source: NGV Global

VW Scirocco has successful STCC debut

Sweden

E.ON, a German producer of biogas and provider of biogas refuelling equipment, has partnered with Volkswagen Motorsport to enter two 100% biomethane powered Sciroccos in the Swedish Touring Car Championship (STCC) for 2009.

The team celebrated a successful race debut for its season-opening event, held at Mantorp racetrack in Mjölby, on May 2nd, in what is reputedly the toughest racing event for standard cars in Sweden. In the first of the two races the best Scirocco was in the 11th position, in the second race in the 9th position -- in both races 16 seconds behind the winner after a 14 lap race at the 3.1 km long circuit.

With further work on the new VW cars the biogas team is confident of performance improvements throughout the nine event season, held across venues in Sweden with one race in Norway. "The purpose of our effort is to demonstrate the potential of biogas - the Swedish climate-smart fuel, " says Håkan Buskhe, CEO of E.ON, adding they want to show that biogas is like any other fuel -- only better.

The (almost) 280 hp, 4-cylinder, 1998 cc Scirocco reaches 100 km/h in 4.5 seconds and has a top speed of 240 km/h, with output of 310 Nm. The two vehicles were built by Volkswagen Motorsport in Hanover.

Driver Fredrik Ekblom, who has completed nine STCC seasons (three championships, three silver and a bronze), and Patrik Olsson, who has raced in the Volkswagen Polo Cup, are enthusiastic about their vehicles. Ekblom said, "For me, this is a significant challenge. After nine seasons, to start with a whole new racing concept with clean, green fuel feels new, fresh and incredibly exciting."

Click here for more information.

Using Biomass to Produce Electricity More Efficient than Transforming the Biomass into Biofuels

The following is part of a newsletter from Green Power Conferences publicising their forthcoming BioPower Generation USA conference, Chicago, USA, 8-9 July 2009.

It certainly got me thinking, as I had always assumed the opposite to be the case, and I would dearly like to be able to attend to find out more.

By the way if you are not already subscriber to their Newsletter, get over to their web site (link given below) subscribe and enter the competition for a free event pass.

According to a recent report in Science, using biomass to produce electricity is 80% more efficient than transforming the biomass into biofuels and twice as effective in reducing greenhouse-gas emissions.

Join leading utilities, project developers, policy makers and investors in Chicago on 8-9 July for BioPower Generation USA and learn new strategies to increase biomass power generation across the U.S.

Attendees will have the opportunity to quiz leading project developers and utility representatives as they present best practice case studies, including:

- GreenHunter
- American Renewables
- Constellation New Energy
- Alliant Energy
- Progress Energy
- NV Energy
- Intrinergy
- Central Hudson Gas & Electrical Corporation
- AgriPower

"As RPS and carbon legislation evolve, so will opportunities to develop more bio-power projects" says conference speaker William Johnson, Manager of Biofuels Development at Alliant Energy. William will address how biomass can be integrated into existing power plant structures and look at the challenges in handling, transportation and storage of biomass sources.

Register today and benefit from our early bird discount (Valid until the 15th May) and get entered for a free event pass. More at the Green Power Conferences web site here.

What are your views? - use the blog comment post below the blog!

Biogas Plant Plan - Cumbrian Farmers to Generate Own Energy

Cumbrian farmers to generate own energy through biogas plan

Farmers in Cumbria are teaming up to develop anaerobic digestion facilities to generate their own renewable energy from agricultural waste.

Community Renewable Energy North West (CoRE NW), a group based in Workington, plans to set up a number of co-operatives to develop the plants, which will produce electricity and heat from farmers' manure and silage.

The first plant is to be developed at Middle Farm in Silloth, in the north west of the county, and could secure planning permission next spring. A feasibility study is currently under way, with 10 farmers interested in getting involved.

Hopes are that the £3.5 million digester could be commissioned by the end of 2010, producing just under 1MW of power - around seven million kWh units a year, or enough electricity to supply about 2,000 homes.

Plans are to use heat produced by the facility in the farm's four large chicken sheds, as well as to the next-door cement block factory.

Social enterprise NRG NorthEast Renewables Group is to supply and install the digester, subject to planning permission, with technology expected to be supplied by German biogas company Biogas Hochreiter.

The project will see local farmers owning the new anaerobic digester along with CoRE NW itself, while NRG will be a minor stakeholder.

Core NW has set up an energy supply company (ESCo) to manage energy sales, with expectations that the facility could bring in £1.2 million a year, achieving payback in around six years. Profits from the project - around £100,000 a year - will go towards setting up three more anaerobic digestion plants in the area, as well as supporting other community renewable energy projects.

Research behind the project has suggested that farmers involved in an anaerobic digestion scheme could see an annual income of £20,000, along with up to £16,300 for supplying materials and dividends averaging £10,000 a year.
Digestion

Anaerobic digestion involves bacterial feeding on organic material in large tanks, producing a methane-rich biogas that can be used to generate energy, as well as a residue that can be used as a fertiliser.

It is seen as a particularly attractive technology for north west Cumbria, since the region has a high density of dairy farms, which produce a considerable amount of manure and slurry, which is difficult to deal with under new legal controls.

CoRE NW said digestion plants could effectively double the profitability of dairy farmers.

Mike Pearson, who owns the farm where the first digester is being proposed, said: "We think this a great way forward for Cumbrian farmers. As well as increasing our income, it also means we reduce our usage of chemicals and produce renewable energy."

Initial work on the Middle Farm project was funded by West Cumbria social enterprise project The Hub, which is run by Lancashire-based industrial and provident society Co-operative and Mutual Solutions.

Feedstock for the plant is likely to inclure 20,000 tonnes of slurry, 10,000 tonnes of silage from currently unproductive land and 3,000 tonnes of chicken manure. Some 10,000 tonnes of food waste from Lakeland Creameries and other local sources could also be used in the plant.

More here...

Forthcoming Conferences by Biogasmax on Biomethane

European Biomethane Fuel Final Conference

Book the dates! and welcome to Sweden at the Biogasmax conference on Biomethane 7-9 September 2009. Biogasmax project has for three years implemented cross-analysis, research and innovation developments on biomethane as a vehicle fuel. This conference will give a great focus on the outcomes brought from this major European Commission funded initiative.

learn more ...


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Biogas to biomethane:

an ISET conference about the upgrading process
On February the 21th, 2008, our Biogasmax partner ISET organized
an event around the topic « biogas upgrading to biomethane »,
key step of the transformation of biogas into bio-methane.
Numbers of experts tackled technical, economic and legislative questions, while other ones came to present their own country experience. The porceedings of that conference is now available
on the ISET web site.


learn more ...


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New development in UK: biomethane for dual-fuel vehicle

The UK delivery compagny Sainsbury’s fleet of diesel heavy
goods vehicles was entirely converted into trucks with dual fuel engines using a combination of diesel and biomethane producted
from landfill biogas. Clean Air Power, a UK technology developer, supported this « Running on Rubbish » initiative, with its new
« Genesis » Dual – Fuel” combustion technology that enables
an existing diesel engine to operate with both diesel and bio-methane.

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New Report Available on Opportunities for Converting Biomass & Wastes into Transport Fuels

If you have been a reader of this blog for a while I will hardly need to tell you that biofuels are seen by many as the best way of reducing emissions of the greenhouse gases. In addition, they can also be looked upon as a way of energy security which stands as an alternative of fossil fuels that are becoming limited in availability.

Biofuels can be theoretically carbon neutral, only releasing CO2 recently absorbed from the atmosphere by the crops used to produce them. Gasoline and other fossil fuels add to the CO2 supply in the atmosphere by giving off CO2 absorbed and trapped in plant material millions of years ago, but biofuels should not do so if produced sustainably.

So, using biofuels, especially those produced and used within the region in which they are created, can reduce the build-up of greenhouse gases that are said to cause climate change. In fact almost all harmful emissions caused by the burning of fossil fuels are reduced when biofuels are used instead.

They can be used as a direct substitute for traditional petrol and diesel and can and are readily being integrated into existing fuel supply systems, and they are now poised to become truly big business.

Whereas in the past Anaerobic Digestion plants were seen as best developed to produce electricity, that focus which has been seen in the UK, is likely to change, with large numbers of AD Plants and also hydrolysis and gasification based systems installed to produce biofuel.

So, what does an interested entrepreneur or forward thinking farm business owner/manager do to cut through all this complexity? For example, diesel, is one of the many biofuels that can be produced from a wide range of feedstocks ranging from food crops and left-over food products like vegetable oils and animal fats, to the organic fraction of Municipal solid waste (MSW) – but is it the best one to go for?

Very soon the many options available can become bewildering.

Which are the most likely paths to a successful biofuel business? We are told that recent scientific breakthroughs have sharply lowered its production cost for the leading technology providers, but how can the average businessman be sure he can cut through the hype?

I was interested to see that Juniper, the UK waste processing and strategy consultant has recently produced a report which tackles these issues, and is for sale at their web site.

The report is called “Biofuels: A Decision Maker’s Guide to Opportunities for Converting Biomass & Wastes into Transport Fuels”.

This new report from Juniper considers more than 70 different pathways for deriving a range of fuels from biomass resources.

In their words:

“The market for sustainable transport fuels is growing rapidly, yet it has already become clear that many ways of deriving these are either uneconomic or open to criticism. So which pathways are likely to be commercially attractive? Which use technologies that are already proven and which require further technical development? These and many other issues are discussed in this new Management Briefing, which provides a succinct and comprehensive guide to the bewildering array of technologies, feed materials and output fuels that are being championed as the optimal solutions for meeting the world’s demand for biofuels.

This Guide will be an invaluable tool for investors, corporates and others interested in this market. It guides the reader through this complex and rapidly evolving sector, helping to identify ‘hotspots’ of market activity, pointing to interesting new developments and reviewing the current status of the market on a global basis.”

This should be an interesting report to many of our readers. Although it comes at a price, it should be affordable to those seriously looking to develop biofuels as a potential renewable energy business.

Further information from Juniper can be found here, and your constructive comments are always welcomed when entered into the comments box below this blog article.

UK Tonnages of Fresh Fruit and Vegetable Waste to be Made Available

Those involved in anaerobic digestion will no doubt all welcome this information. For the first time the magnitude of the potential AD market in digestion of these wastes will be clear, however, it will be interesting to see how much wastage the food industry and supply cain will eradicate once awareness is raised! (BlogMaster)

New research led by WRAP (Waste & Resources Action Programme) and Envirowise will calculate the total amount of fresh fruit and vegetable waste by product in the UK retail supply chain for the first time - and identify how to reduce it.

A key outcome of the project is the development of detailed ‘resource maps’, which will identify the amounts of fresh produce and packaging waste generated for eleven products at key points in the supply chain1 - and calculate the equivalent carbon and economic impacts.

Best practice guidance will be produced covering storage, handling and packaging, and reports will be made available for companies to benchmark themselves against the aggregated data. Opportunities for achieving environmental benefits and cost savings will also be identified.

WRAP and Envirowise are urging the sector to take part in the research to help provide a detailed understanding of the waste produced across all components of the supply chain - from packhouses through distribution to back of store. Data collection will include a comprehensive industry literature review as well as company-specific waste prevention reviews carried out on-site.

Charlotte Henderson, Retail Supply Chain Programme Manager at WRAP commented: “Understanding where and how much fresh produce food and packaging waste is generated at all points in the chain on a product by product basis will help to identify and develop the best solutions to reduce it. Implementing these solutions will enable considerable benefits to companies operating across the supply chain – economic and environmental – to be delivered and we would actively encourage companies to be part of this research.”

The project is to be undertaken by research specialists Cranfield University, working with food and grocery supply chain experts IGD and the Fresh Produce Consortium (FPC), representing the fresh produce sector.

“This partnership brings together expertise and knowledge of the complexities in the retail and wholesale supply chain in the UK,” commented Dr Leon Terry of Cranfield University. “We are delighted to carry out this essential research.”

Nigel Jenney, Chief Executive of FPC, said: “We are encouraging our members, including retailers, wholesalers and distributors to participate in the project, which will provide valuable information for the fresh produce sector on how to quantify and reduce both food and packaging waste.”

More at WRAP here.