| Hardeland Hydroelectric Power Station | |
|---|---|
| Official name | Hardeland kraftverk |
| Country | Norway |
| Coordinates | 59°39′27″N6°05′48″E / 59.65750°N 6.09667°E Coordinates: 59°39′27″N6°05′48″E / 59.65750°N 6.09667°E |
| Status | Operational |
| Owner(s) | Haugaland Kraft |
| Power Station | |
| Turbines | 3 × 14 MW |
| Annual generation | 123 GW·h |
Hardeland hydroelectric power station is a power plant in Etne in western Norway. The site is owned and operated by Haugaland Kraft.
The station uses water from two sets of reservoirs. Hardeland H is a 400 m vertical fall from Løkjelsvatnet, while Hardeland K uses Grindheimsvatnet, Ilsvatnet, Basurde-/Krokavatnet and Hjørnås via a 305 m fall from the Hjørnås lake.
Hardeland is connected to the grid with a 22 kV line to Litledalen. [1] The site uses three pelton wheels with 14 MW generators, and average yearly output is 123 GWh. [2]
Pumped-storage hydroelectricity (PSH), or pumped hydroelectric energy storage (PHES), is a type of hydroelectric energy storage used by electric power systems for load balancing. The method stores energy in the form of gravitational potential energy of water, pumped from a lower elevation reservoir to a higher elevation. Low-cost surplus off-peak electric power is typically used to run the pumps. During periods of high electrical demand, the stored water is released through turbines to produce electric power. Although the losses of the pumping process make the plant a net consumer of energy overall, the system increases revenue by selling more electricity during periods of peak demand, when electricity prices are highest. If the upper lake collects significant rainfall or is fed by a river then the plant may be a net energy producer in the manner of a traditional hydroelectric plant.
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