SOLAR ENERGY

HOW DOES IT WORK

• Solar Energy (basically light from the sun) has photons.
• Solar panels convert photons/electrons into direct current (DC).
• These electrons then flow out of the solar panels and into an inverter and other safety devices .
• The inverter converts DC power (the kind used in batteries) into AC power. (Alternating current)
• Alternating current is the used in computers.

POSITIVE ENVIRONMENTAL EFFECTS

• It releases no carbon dioxide into the air.
• It is usually silent.
• If the entire US energy grid was converted 40% of our carbon dioxide would be elimanated.
• Low/no maintenance need,cutting down the resources used.
• Cleanest type of energy source.

NEGATIVE EFFECTS FOR THE ENVIRONMENT

• Solar Panels needs sunlight to work.
• Solar panels are usually built big for that reason.
• That can take up a lot of land and space.
• When making them green house gases and other pollutants are released.
• May use rare or uncommon metals.

CURRENT USES

• Lighthouses & Aircraft warning systems.
• Can be used as a portable water pump.
• Creating electricity.
• Use in isolated or distant places
• Cutting down on pollution.

HOPEFUL USES

• Cutting down heat and cold costs
• Cutting down electricity costs
• Making your house cooler/hotter.
• Cleaner environment
• I would like to point out it is still growing.

ACCEPTED, WHY

• In general public opinion solar energy is widely viewed as positive.
• That is mainly because of how clean it is.
• Also because it is reducing pollution.
• One more reason is that it can be used every where.

POSITIVE EFFECTS

• Solar energy is sustainable.
• It has cheap running costs.
• Reduces harmful fossil fuels.
• Very clean running.
• When built power is free.

NEGATIVE EFFECTS

• Making of solar panels uses 40% of freshwater withdrawals.
• Uses water to cool it down.
• Can be hazardous if not disposed properly.
• Uses rare metals.
• Releases pollutants when made.