The school energy loop
1
Collect
Manure and suitable organic material are aggregated from the school or surrounding farms.
2
Produce
The digester converts feedstock into biogas for the school kitchen.
3
Displace
Biogas reduces dependence on firewood, charcoal or other purchased cooking fuels.
4
Return value
Digestate becomes an organic fertiliser resource for farms and school gardens.
A 300-pupil example
Indicative design basis
Current KyoGreen project materials use an example in which a 300-pupil school requires approximately 25,000m³ of biogas per year, with feedstock equivalent to roughly 56 cows.
Pupils300
Annual biogas~25,000m³
Feedstock guide~56 cows
Final designSite assessed
This is an illustrative design basis, not a universal sizing rule. Actual school systems require a technical assessment.