Renewable energy We have to reduce our CO2 emissions and our consumption of fossil fuels

Nova Scotia Today 18% of our electricity is renewable By 2015, 25% will be renewable (Gov. NS) By 2020, 40% will be renewable (Gov. NS)

Solar Energy From the sun Has existed for a long time (calculators) Uses PV (photovoltaic) batteries to capture sun rays which heats up electrons and they make energy Germany, Spain, Japan, and the US are the 4 countries which produce the most

Residential Costs between $ for installation Takes about 10 years to recoup the costs You can connect the the regular power lines and sell the energy you don’t use back to the power company Efficiency is difficult to predict because of the weather

Solar products… Charge your phone or laptop A lunch bag that can heat or keep cold your food Deck lights Build a solarium or a greenhouse Heat the water in your pool They are working on creating a solar car

Hydro energy From water We build dams and when water goes through, it creates energy 20% of the worlds energy (Canada is second in production) In 1879 the first dam was built at Niagara Falls The biggest dam in the world is on the Yangtze River in China

Advantages and disadvantages Easy to make more or less depending on need A lot less CO2 emissions produced Costs only 3 cents per kWh = 28$ per month for a house Building resevoirs destroys ecosystems Sometimes people are displaced because companies need the land

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Geothermic energy From the Earth

The US and the Philippines are the top producers in the world The biggest refinery is in California Costs about 4-10 cents per kWh after installation, which is extremely expensive

Wind Energy From the wind Denmark gets 25% of their energy from wind power After installation ($ ), about 1-5 cents per kWh Difficult to predict the quantity of power you will get

Nova Scotia We have 176 turbines which produce 7- 8% of our total energy If a turbine is placed 350m away from a house, the noise you hear is the same as a fridge ower/makingelectricity/renewable/directory.aspxhttp:// ower/makingelectricity/renewable/directory.aspx

Biomass energy From organic organisms

Used for electricity and for fuel The US and Brazil produce the most Is used a lot in NS in households because a lot of people burn wood for heat 3% of our total energy A plant in Port Hawkesbury Denmark produces 12% of it’s energy from biomass