Download
1 / 12
140 likes | 315 Views
Renewable Energy Sources. Solar Energy. Solar energy is the source, directly or indirectly of most other renewable energy sources . (Wind, Biomass, and Water). Solar Power in the Home. Solar Power in Outer Space. Solar Power Plants. Plants use giant mirrors (rows of mirrors)
E N D
Solar Energy Solar energy is the source, directly or indirectly of most other renewable energy sources. (Wind, Biomass, and Water)
Solar Power Plants • Plants use giant mirrors (rows of mirrors) • Mirrors focus the sun’s rays to heat a tank of water • Boiling water creates steam used to generate electricity
Solar Cells • Solar energy can be converted directly into electricity • Has a negative and positive terminal like a battery • Light hits the cell and an electric current is produced • Solar cells can power calculators, lights, and small devices like a telephone.
Passive Solar Heating • Converts sunlight into thermal energy, which is then distributed without using pumps or fans.
Active Solar Heating • Captures sun’s energy and then uses pumps and fans to distribute the heat throughout a building.
Advantages 1. Free 2. Creates no pollution. 3. Renewable
Disadvantages 1. Limited to areas that have little to no cloud cover. • Requires a huge amount of land resources because the solar cells can only convert 10% of the solar radiation into electricity. • Doesn’t work at night so energy must be stored in batteries.
