Biogas can do it
Biogas is the all-rounder among the regenerative energies. Biogas can be converted into electricity and heat or it can be used as fuel. Another use is as an equivalent to natural gas.
In 2011, about 18 billion kilowatt-hours (kWh) of electricity are generated from biogas. This is equal to a little less than 18 per cent of the electricity obtained from renewable sources and about 3.5 per cent of the total electricity consumption in Germany. On average, more than five million homes are supplied with electricity from biogas in 2011.
When biogas is converted into electricity in a cogeneration unit, heat is produced – some 18 billion kWh in 2011. This provides CO2-neutral heating to over 530,000 homes today.