Your choices:
1 Process heat/steam (50 - 150 °C); 2 Electricity; 3 Water
| What is your resource? | What do you want to deliver? | What is the service the customer wants? |
| Biomass (digestible sludge) | District cooling | Comfortable indoor climate |
| Biomass (fermentable sludge) | District heating | Electricity |
| Biomass (solid) | 2 Electricity | Process cooling (< 0 °C) |
| Geothermal | Fuel: Gaseous | 1 Process heat/steam (50 - 150 °C) |
| Sunshine | Fuel: Liquid | Process heat (150 - 1000 °C) |
| 3 Water | Fuel: Solid | Process heat (> 1000 °C) |
| Wind | Local cooling (ind. house) | Transport |
| Residual oils/fats etc | Local heating (ind. house) |
From a thermodynamical perspective, the production of electricity by aid of flowing water is by far the most efficient process and when electricity is used this should always be considered a main alternative.
Contracting electricity deliveries from hydroelectric plants will make the industrial process qualify as operated on hydro-energy as the primary resource.