2787760
Descrição
Mapa Mental por tiafisher99, atualizado more than 1 year ago
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Criado por tiafisher99
mais de 9 anos atrás
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Hydroelectric
- They can only be built in
a few suitable locations.
- Electricity output can be increased
and decreased very easily and quickly.
The storage of water in dams means
hydroelectric power is reliable
- They are about 90% efficient
and can generate an average
of 11W per square metre.
- The dams interrupt flow
or rivers and can harm
local ecosystems. The
flooding needed to create
dams may affect farms or
inhabited land.
- The dams can be
used for water
storage, flood control
and water sports.
- They usually last
for about 50-100
years. Electricity
costs 7p per kWh.
- Hydroelectric power is the
most widely used form of
renewable energy in the world.
- Dams are built to trap
water. Water flowing
through tunnels in a
dam turn turbines,
generating electricity.
- We could generate 1.5kWh per
person per day through
hydroelectric power in the UK.
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