RES-chains training material:

The aim was to identify sustainable renewable energy source chains (RES-Chains) to encourage sustainable development within the South Baltic Region. The training material aimed to describe the connections between renewable energy sources and customers.

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Your choices:
1 Process heat/steam (50 - 150 °C);   2 Water;   Electricity

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 1 Process heat/steam (50 - 150 °C)
Sunshine Fuel: Liquid Process heat (150 - 1000 °C)
2 Water Fuel: Solid Process heat (> 1000 °C)
Wind Local cooling (ind. house) Transport
Residual oils/fats etc Local heating (ind. house)

 

Flowing water should be used for the production of electricity and nothing else. Electricity should be used for low-temperature process heat only in such cases when the thermodynamically better alternatives district heating and district cooling are not feasible.

Thus, this combination can be recommended only when there are other aspects such as the ease and precision of process control or similar that may override the thermodynamical arguments against it.

Electricity shall in the first instance be used for

The supply of hydropower may be guaranteed by a micro-hydropower installation or simply by contracting the electricity delivery to be 100% hydropower.