Hydroelectricity
Hydroelectricity is electricity produced from hydropower. Hydropower or water power (from Greek: ύδωρ, "water") is power derived from the energy of falling water or fast running water, which may be harnessed for useful purposes.
Added by Bacchanalia
About/Subject 2
| Title | Format | |
|---|---|---|
 | Porjus. Pionjärverket i ödemarken | Hardback |
 | Harsprånget: Storverket som aldrig höll på att bli av | Hardback |