…there’s wind power…

which

is

cleanfairly predictable

and

can be seen

on hillsides

all around Wales

…solar panels or “photovoltaic cells”…

can

turn

Sunlight

directly

into

electricity

…like this massive 11 MegaWatt solar power station…Near

Serpa

in

Portugal

comprising

Fifty two thousand

solar

panels

…around which sheep graze and frolic happily…

…and we can use it to heat water too….

Like this

system

being

used

on a

rooftopin

Israel

…like the PS10 “solar power tower” in Seville in Spain…

…and uses the steam to turn turbines and generators

to produce electricity

which

boils

water to make

steam

…or energy from water…

like

the Severnestuary

which

could be used

To generate

lots of electricity

…by holding the water behind a big “barrage”

when the tide is high…

…so the water that flows through…

…and gets trapped behind the barrage…

…and when the tide goes back down…

…we let all the water out...

making lots of electricity…!

…we can use crops for fuels – we call these biofuels….

Lots of cars now use

vegetable oil

for

fuel

…we also have nuclear power…

which doesn’t release

harmful gases

into

the

atmosphere

Although it

does produce

harmful

Radioactive

wasteWhich can

cause other

problems…

…we can get power from coal or oil fired power stations………..

Burning coal

releases

harmful gases

into the

atmosphere

Fuels are burned

to release

heat energy

which boils Waterto produce

steam which

spins

turbineswhich

turn generators!

…and from wood fired power stations

Which releases

LESS

harmful gases

than coal

…some of this power can be

produced by hydroelectricity

…at Ffestiniog

By power stations like this one…