Site Map |  Cymraeg   11 - 18 years > What can we do to reduce climate change? > Renewable energy in Wales > Hydroelectric power > Large HEP schemes LARGE HEP SCHEMES Larger HEP schemes provide power only when the price of electricity is high. This is when there is a peak in the demand. They run for 1-4 hours per day. This means less water is used and keeps the levels of water higher in the reservoirs. Rheidol Reservoir © Photolibrary Wales Try This! http://www.eon-uk.com/ gives video footage of Rheidol HydroPower station, one of the largest in England and Wales. On the site go to media and then choose video footage.

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Medium HEP schemes Small HEP schemes Pumped storage schemes