Your choices so far:
1 Process heat/steam (50 - 150 °C); 2 Biomass (solid)
| 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 |
| 2 Biomass (solid) | Electricity | Process cooling (< 0 °C) |
| Geothermal | Fuel: Gaseous | 1 Process heat/steam (50 - 150 °C) |
| Sunshine | Fuel: Liquid | Process heat (150 - 1000 °C) |
| Water | Fuel: Solid | Process heat (> 1000 °C) |
| Wind | Local cooling (ind. house) | Transport |
| Residual oils/fats etc | Local heating (ind. house) |
From practical points of view, solid biomass is not an attractive alternative as a fuel for direct firing in processes aimed for low temperatures. However, if the site already has an internal steam distribution system for their energy supply – as is commonplace in many chemical and biochemical industries – then the steam boiler may be converted to firing using solid biomass as primary fuel.