Your choices so far:
1 Residual oils/fats etc.; 2 Fuel: liquid
| 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) | Electricity | Process cooling (< 0 °C) |
| Geothermal | Fuel: Gaseous | Process heat/steam (50 - 150 °C) |
| Sunshine | 2 Fuel: Liquid | Process heat (150 - 1000 °C) |
| Water | Fuel: Solid | Process heat (> 1000 °C) |
| Wind | Local cooling (ind. house) | Transport |
| 1 Residual oils/fats etc | Local heating (ind. house) |
In case the primary business idea is to sell a liquid fuel and vegetable oil residues are at hand, then the main route is the production of FAME.
The process is fairly straightforward and may – unless quality demands are set too high – well be done also in reasonably small scale.