Using this self-study material
Since the over-all aim of the project was to promote knowledge and understanding of the renewable energy sources as such, this material provides a bit of basic knowledge sooner than any hands-on, practical advice. It is a fact that some types of renewable energy sources lends themselves better to electricity production while others tend to be best used as a raw material for – say – car fuel. The same holds true for merchandisable energy carriers. And the same holds true for the customer needs.
The connections cannot be chosen freely between resources and market but there are constraints that need to be taken into account. Constraints like total economy, total efficiency and such. This material aims to give a first insight into these constraints.
To use the material you select a resource or a deliverable energy carrier or a customer need. Your selection will
affect the remaining two columns so that only suitable options are available. And your third selection will then
constitute your complete, suggested, chain to supply the customer from the specific source.
| 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 oC) |
| Geothermal | Fuel: Gaseous | Process heat/steam (50 - 150 oC) |
| Sunshine | Fuel: Liquid | Process heat (150 - 1000 oC) |
| Water | Fuel: Solid | Process heat (> 1000 oC) |
| Wind | Local cooling (ind. house) | Transport |
| Residual oils/fats etc | Local heating (ind. house) |