Thursday, December 06, 2012

Help With Our Research on Biogas Plant Payback Periods

Please Help With Our Research on Biogas Plant Payback Periods. Are they more or less than 10 years? Read the article below, if you have time, but if not please do immediately follow the following Facebook link by clicking on the image below, and vote!

biogas plant payback

Experience with Simple Home and Community Biogas Plants in Nepal

Nepal is one of the lowest energy consuming countries in the world. More than 85 percent of its total energy comes from traditional biomass energy such as from forests, agricultural residues, and by-products from crops which lead to environmental degradation and ecological imbalance and adverse human health impacts too. Beside the carbon revenue, other quantifiable tangible benefits are also associated with the technology. The main objective of the study was to study the prospects of biogas installation in terms of the socio-economic and environmental benefits to the rural community of Nepal.
The field work was based on structured questionnaire and focus group discussion in Gaikhur VDC (154 biogas plants till June 2009, BSP) among representative Biogas and Non-Biogas Households. The primary data was used for calculation of GHG emission (IPCC guidelines), payback period and carbon abatement revenue. 
With the proper utilization of bio gas and treated solid and liquid bio manure the maximum payback period of Synod bioscience projects will be 24 to 36 months

Biogas Plant Payback from the Waste Management World Magazine
Long-term contracts: A biogas plant typically has a payback period of 10 years – and financing to match – so feedstock contracts need to be long term. This is relatively simple with crops but harder when the feedstock is food waste. At present, contracts for supplying food waste typically last for a year or two, which doesn’t support the investment needed to get a biogas plant up and running.

The View from Electrigaz on Biogas Plant Payback Periods?

Biogas plants can take various shapes and forms.
A simple agricultural plant could cost as low as $3,500 per electrical kW installed. Municipal food waste plant can cost up to $19,000/kWe installed!
Every project is different. A typical payback on a biogas plant is 7 years.

Biogas Plant Payback Report from Envitec

10 tons of silage or 20 tons of manure daily. If you have less then 10 tons of raw material your payback period will be more then 2 years. Biogas plants are recommended for big and middle size companies. For such companies payback period is about 1-2 year or less. Middle size biogas plants are plants with 20-100 tons of daily biomass loading. There are no maximum size biogas plant limitations. Equipment is of modular type and can be built up if necessary.

From 5 to 6 months. Standard projects that are already operational available. While projecting only planning and adjustment are made. Equipment supplied as component assembly.

Biogas Plant Payback Periods in Report on Google pdf Site

By 1983, 420 biogas plants, among which 378 full-scale plants and 42 pilot-scale plants, were treating agricultural wastes. Overall he total digestion working volume was 95,000 m3. Two hundred ninety one biogas plants were treating liquid or semi-solid wastes, mainly cattle and pig manure. Fourty five biogas plants were treating solid wastes, mainly immure with bedding. Seventy seven biogas plants were treating mixed agricultural wastes, mainly mixtures of manures.

Biogas plants on farm can be economical, but this is seldom the case. There are two major reasons for this; too high an investment cost or too low performances.

Among the 32 biogas plants for which enough data were available for a valuable economic analysis, only 6 were found profitable. Among these were 3 out the 5 Do-It-Yourself biogas plants. Their Simple Pay Back periods lie between 3 and 4 years and their Internal Rates of Return are higher than 30% which in turn is higher than the capital cost of 15%. Although they have a low daily biogas production, below 1m3 biogas per m3 of digester working volume, they are still profitable because their investment cost lies between 100 and 160 ECU per m3 digester working volume.

Three biogas plants, constructed on a turn-key basis by companies, among which one includes an electricity generator, are profitable with Simple Pay Back periods of 5 to 6 years and Internal Rates of Return higher than 15%.

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