Transcript Power generation

Power generation
Jerry, Alex, Edward, Luke, Jason,
Laurent
Biomass
• Biomass is organic material made up of plant
and animal waste.
• Examples of biomass include wood, peat, straw,
nut shells, sewage, and corn husks.
• In a system, the organic waste decomposes to
produce a gas called methane.
• The methane gas can be burned to boil water to
make steam.
• The most biomass material used today is wood
waste from lumber and from pulp and paper
industries.
Geothermal Energy
• Geothermal energy is the energy from hot water and
steam.
• Water is naturally heated by hot rock deep in Earth’s
crust and rises to the surface as hot water and steam.
• Geothermal energy sources at or near Earth’s surface
are hot enough to heat homes and other buildings.
• High temperature geothermal sources are found deep in
areas where volcanic activity is located.
• In Canada, geothermal sources hot enough to be used
to drive turbines for electricity generation are located in
British Columbia.
Tidal Energy
• Tidal energy uses the energy of the gravitational pull of
the Moon.
• North America’s only tidal power generating station is in
Annapolis Royal, in Nova Scotia, where the powerful
tides of the Bay of Fundy spin its turbines.
• The station provides enough electricity for about 4500
homes.
• Tests are under way in British Columbia and Nova Scotia
for a promising new technology called tidal stream
generator, which works like an underwater windmill.
• Other marine energy sources that are being test include
ocean wave energy and ocean thermal energy.
Fossil Fuels
• Formed from organic matter of organisms that
lived millions of years ago including coal, oil, and
natural gas.
• Fossil fuels are usually coal, burned in a
generator to boil water. The steam turns turbines
which generates electricity.
• Big Bend Coal Power Station
• Castle Gate Plant
• Currant Creek Power Plant
• The Mohave Power Station
Nuclear Energy
• In a nuclear reactor, atoms of a heavy
element, usually uranium, are split in a
chain reaction. This splitting called nuclear
fusion releases an enormous amount of
energy, this energy is used to heat water
to produce steam to turn a turbine.
• The Darlington Nuclear Generating Station
Solar energy
• 1839 a French scientist Edmond Becquerel soaked two
metal plates in an electricity conducting solution. When
Becquerel exposed the plate to sunlight, he can detect a
small potential difference.
• This energy has uses in calculator, light and international
space stations.
• Solar Farm
• It includes rays of mirrors that focus sunlight onto a liquid
that is heated and used to turn water into steam that
drives turbines.
• One of the world’s largest solar energy projects include
solar farms in Sonia and Sault Ste. Marie.
Wind energy
• It uses of the moving air that spins blades
connected to a generator. The amount of
energy produced is based o the amount of
wind blowing. Wind energy provides about
1% of Ontario’s electricity.
Opg
• Ontario Power Generation (OPG) is a public company
wholly owned by the Government of Ontario. OPG is
responsible for approximately 70% of the electricity
generation in the Province of Ontario, Canada. Sources
of electricity include nuclear, hydroelectric, solar, wind,
and fossil fuel. Although Ontario has an open electricity
market, the provincial government, as OPG's sole
shareholder, regulated the price the company receives
for its electricity to be less than the market average, in
an attempt to stabilize prices. As of April 1, 2008 the
company's rates has been regulated by the Ontario
Energy Board.
Citation
http://en.wikipedia.org/wiki/Ontario_Power_
Generation
Investigating science 9
http://en.wikipedia.org/wiki/Nuclear_power_p
lant
http://en.wikipedia.org/wiki/Fossilfuel_power_station
http://en.wikipedia.org/wiki/Fossil_fuel#Rese
rves