- Renewable energy is energy from a natural resource that is a sustainable, meaning it can be naturally replenished or renewed within a human lifespan.
- Some natural resources such as moving water, wind and sunshine, are not at risk of depletion from use for energy production.
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Geothermal Energy
- Geothermal energy can be captured from the heat stored beneath the earth’s surface.
- It can be captured from naturally-occurring underground steams and used to produce electricity.
- A ground source heat pump can also take advantage of the temperature differential between outside air and the ground or groundwater and be used for heating and cooling.
Solar Energy
- Solar power uses energy from the sun to directly generate electricity or heat and is an abundant, renewable and sustainable energy source.
- Two active solar technologies that involve electrical or mechanical equipment are becoming common:
- Solar collectors or panels that are used to heat water or ventilation air for use in buildings (solar thermal).
- Solar photovoltaic technology that uses solar cells to convert sunlight directly into electricity (solar PV).
Benefits of Solar Power:
- Doesn’t interfere with the natural environment
- Doesn’t emit carbon dioxide, which helps reduce greenhouse gas levels
- Provides quiet, clean, low-maintenance energy generation
- Contributes to local energy self-reliance
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Ministry of Northern Development, Mines & Forestry
Wind Power
- Wind power is one of the oldest sources of harnessed renewable energy known to mankind.
- In the past, windmills were regularly used to pump water and grind grains.
- Today, wind turbines are used to capture wind energy and convert it to electricity.
- The most favourable locations for wind turbines are where wind is unimpeded by trees or buildings.