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Geology 1010 - Lecture 22 already graded A+ 2023/2024
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Geology 1010 - Lecture 22 already graded A+ 2023/2024
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Geology 1010 - Lecture 22Renewable Energy Advantages - ANSabundant, produce little pollution, low maintenance, safe
Renewable Energy Disadvantages - ANSTechnology still being developed
Expensive
Infrastructure compatibility
Acceptance by society
Capture all the sunlight for one hour = _________ supply of energy - ANS1 year
How can we harness solar energy? - ANSSolar farms and solar electricity
Solar Farms - ANSuse curved mirrors to focus/reflect sunlight onto a central receiver tower
Solar Electricity - ANSUses photovoltaics, different than solar farm because not holding heat
energy at all, old idea
Photovoltaics (PV) - ANSprocess of converting sunlight directly into electricity
Photovoltaic Cells (PVC) - ANSsolar energy harvesting technology; constantly improving; new
organic materials being studied to mimic photosynthesis
Energy Payback (EPB) - ANSmeasure of TIME it will take to produce enough energy to offset
the energy you used to set up
Since 2000 solar's EPB has dropped to _______________. - ANS2-3 years
Solar Disadvantages - ANS- Insolation varies - solved with batteries
- Some pollution from making older PVCs
- Where to put them?
Hydroelectric - ANSflowing water used to turn turbines that generate electricity
Advantages of hydroelectric power - ANS- doesn't pollute the water
- quick profit (5 year EPB)
Disadvantages of hydroelectric power - ANS- réservoir creation floods areas
- imminent domain
- dams alter downstream environments
- site selection (not in my backyard)
- efficiency and safety
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