Renewable energy sources

Renewable energy constitutes __ percent of total U.S energy sources

• 13

• 10

• 5

• 11

Define renewable energy sources:

• Sources that are replenished by natural processes and can be used indefenitely

• Wafers of thin films treated with silica

• Using and collected devices to gather solar energy then disrupting it by pumps and fans

• Solar energy used to heat building to (no pumps or fans)

What are photovoltaic solar cells

• Active solar heating

• Passive solar heating

• Wafers of thin films treated with silica

• Solar thermal electric generation

What are the advantages of solar energy?

• No pollution

• Minimal maintenance

• can purchase small modular units

• All of the above

What are the disadvantages of solar energy

• only 18-24% efficient,Utilize a large amount of land

• No pollution

• Minimal maintenances

• None of the above

What is active solar heating

• Using and collecting devices to gather solar energy than disrupting it by pumps and fans

• Solar energy used to heat buildings (no pumps or fans)

• Collecting sunlight, contracting it, and heating a fluid to produce electricity

• Sources that are replenished by natural processes and can be used indefinitely

what are expamples of how active solar heating is used

• Solar panels

• Space heating

• Water heating

• All of the above

What is passice solar heating

• Using and collecting devices to gather solar energy then disrupting it by pumps and fans

• Solar energy used to heat buildings (No pumps or fans)

• Collecting sunlight, concentrating it, and heating a fluid to produce electricitys

• None of the above

Exaples of how passive solar heating can be used

• South- facing windows; Heating asportions in floors and windows

• Solar panals

• Space heating

• Water Heating

What is solar thermal electric generation

• Collecting sunlights, concentrating it, and heating a fluid to produce electricity

• Solar energy used to heat building

• Using collection devices to gather solar energy than disrupting it by pumps and fans

• Sources that are replenished by natural processes and can be used indefinitely