The Power of the Jewell Traditional Geocache
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Difficulty:
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Terrain:
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Size: 
(micro)
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A micro by one of Dartmoor's smallest reservoirs.
Wheal Jewell reservoir was built originally to produce hydropower
to the surrounding tin mines. Today, the reservoir, which is fed by
a leat, is used by the Mary Tavy hydroelectric power station.
For those that are interested, the reservoir holds 6½ million
gallons (29,500 cubic metres) of water and provides an operating
head of water of 500 feet (152 metres) for the power station. This
system comprises three Pelton wheel driven generators, each of 650
kW capacity. The power station at Mary Tavy also has three Francis
turbine generators, each of 230kW capacity and together with the
hydroelectric power from Bennett’s reservoir, the total power
output from Mary Tavy is sufficient to provide the electricity
needs of 5000 houses.
If you haven't fallen asleep by now, suggested parking is at
N50°36.429 W004°05.237, which provides a pleasant and easy going
walk of about two thirds of a mile.
Additional Hints
(No hints available.)