Your choices:
1 Comfortable indoor climate; 2 Local cooling (ind house); 3 Biomass (digestible sludge)
| What is your resource? | What do you want to deliver? | What is the service the customer wants? |
| 3 Biomass (digestible sludge) | District cooling | 1 Comfortable indoor climate |
| Biomass (fermentable sludge) | District heating | Electricity |
| Biomass (solid) | Electricity | Process cooling (< 0 °C) |
| Geothermal | Fuel: Gaseous | Process heat/steam (50 - 150 °C) |
| Sunshine | Fuel: Liquid | Process heat (150 - 1000 °C) |
| Water | Fuel: Solid | Process heat (> 1000 °C) |
| Wind | 2 Local cooling (ind. house) | Transport |
| Residual oils/fats etc | Local heating (ind. house) |
In the case of a single-farm anaerobic digester and the gas being used in an internal combustion engine to provide at least part of the electricity needed and a major part of the heating need throughout the year, the electricity generated may well exceed what is needed for climate cooling in an AC-unit.