When effectively installed, a gas-capturing lagoon cover can supply a large volume of usable methane biogas. In fact, given the increasing cost of energy from all sources, the payback period on a co-generation unit used with a gas-capturing lagoon cover can be extremely fast. Here are some estimates, based on published methane-generation estimates
from the agricultural industry:
- Example: Dairy Waste Lagoon. A cover capturing the gas from a lagoon covering 200,000 square feet, serving a 1000-head dairy waste lagoon (averaging 900 lbs. per animal) could have a payback period of less than 24 months.
- Example: Feeder Cattle Waste Lagoon. A cover capturing the gas from a lagoon covering 150,000 square feet, serving a 500-head feeder cattle lagoon (averaging 1250 lbs. per animal) could have a payback period of less than 37 months.
- Example: Swine Waste Lagoon. A cover capturing the gas from a lagoon covering 80,000 square feet, serving a 1000-head swine waste lagoon (averaging 220 lbs. per animal) could have a payback period of less than 58 months.
Please note: These are sample estimates based off reasonable guesses using known waste generation in equivalent BTU, and an average electricity cost of $0.08248 per kilowatt-hour. Cover prices may vary considerably depending on the installation and local conditions, so we ask that you do not use these estimates for your own project
. We would be happy to help you learn more about lagoon covers
and how they can pay for themselves.
We can help you with lagoon covers of all types -- from the simplest cover to a complete co-generation system. Please contact us
for more information.
last revised 10.19.2005