video_solar energy saved by the sun
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Mind map on the documentary Solar Energy - Saved by the Sun.TRANSCRIPT
Solar Energy - Saved by the Sun
1. IntroSmall electronic devices
Solar dancing
Increasing worldwide demand for electricity
Chance to meet inapetitable human for energy
Important source after 70's oil crisis
Innovative business models
Can solar power produce enough electricity to meet the demands of energy of 21stcentury?
2. KazmerskiSolar enthusiastic
Collector of solar history
Present when solar started in the US - President Carter
Threat of electruction - Pres. Carter
0. About the movieNOVA DVDs
To buy: shop.wgbh.org
56 minutes
2007
ISBN: 978-1-59375-721-2
Watched Jan. 14, 2015
3. Solar cells
Like a sandwich
Top = protection
The more sunlight = more juice they produce
Bottom = base
Middle = silicon (where action occurs)
[no text]
4. Solar power adoption
Phill Reavis JrIndustrial designer
Sommerville, MA
change = motivated by oil crisis
1st to go solar in the community
Bill and Debi LordSolar houses
Offers on-site tours to convert houses
Passionate advocates 4 solar power
Website and Podcast 4 the curious: MAINE SOLAR HOUSE
Solar electric panelsFor home uses
Net metering
Sells the surplus to the grid
Solar hot water panels Incentives to go solar (US)
14 states1) Illinois / 2) Wisconsin / 3) Minnesota / 4) Florida / 5) California / 6) Nevada / 7) Massachusetts / 8) Maine / 9) New York / 10) Vermont / 11) Connecticut / 12) Maryland / 13) Delaware / 14) New Jersey
Massachusetts = 50% off investment
Net metering
Phill pays less than a half
5. What is this about?Savings
Payback
Reducing individual carbon footprint
Reducing CO2 emissions Reducing effects of global climate change
Reducing global warming
ConsequencesDroughts
Severe weather conditions
Unexpected other cnditions
7. Needing for power
Grid managersIntense heat waves = more electricity
Peak use (A/C on) = blacouts
Needs to buy electricity from other places
Extreme winters = more heating
Efforts to conserve energyAsk companies/municipalities to turn off6. Alternative Energies
Renewable: solar and solarDon't have the nuclear's drawbacks
Needs to get cheaper
Nuclear energyVirtually carbon-free
Fear over nuclear accidents
8. Solar Thermal Power Plant
Uses synthetic oilReaches up to 750 degrees Fahrenheit
Uses parabolic-shapped mirrors
Powers 150,000 homes in Greater LA area
occupy area bigger than NY Central Park
Kramer Junction
largest solar power plant in the world
built 20 years ago = response energy crisis
Mojave Desert
3h driving from LA
9. Germany
More and more renewable
Walls of solar panels on the roads
Hermann ScheerLeading advocate
20% of renewable energy by 2020
ahead on schedule: close to 30% by 2020
cash incentives
50 cents to sell
20 cents to buy
prices fixed for 20 years to build huge solar structures
National Renewable Energy Act
80% of the people support the Clean Energy project
Leader in solar cell production
10. Promising trend led by business
Whole Foods MarketRoof covered with solar panels
Jennifer McDonnel - green missions specialist
Solar panels complements but not replaces energy from the grid
The panels supplies from 50%-100% daylight needs
Daylight fares are the most expensive ones
Solar provides only 15% of the year round store needs
Fixed prices for 20 years
Because of that - prices are predictable
SolarEdison
Jigar Shah - CEO
company and its investors pay the solar systems
contractor promises to buy buy power over a long-term contract
11. TechnologiesPhotovoltaic panels
Solar heat panels
Flexible solar sheetingMore power than conventional panels
Multijunction solar cellSeveral layers of light-absorbing materials
miniature version of a conventional solar solar cell
harness energy in different energy bands = more efficiency
technology used in the robot that is being used in the Mars robot by NASA
Nano solar paintLayer of something conductor of electricity
Wires to transport energy
Layer of the solar paint
Nathan Lewis
CalTech professor - nano technology
Uses titanium oxide (TiO2)
Put a positively charged coat over the Lewis's paint to freed electrons
12. Amory Lovins
Lives in Colorado Rockies
Energy expert
U.S. energy policykeep wasting lots of energy
import "energy"at whatever prices and whatever means are necessary
keep stealing from our kids
keep screwing up the climate
Investment in energyRecognized as one of the most creative thinkers on energy use and misuse
Private and public investments has shrunk in the last decades
Ultimate goal
Helping the U.S. get completely off oil by 2040s
His biggest project
Physicist
13. Final considerationsCalifornia's plan to get solar panels on a million roofs
Solar power + wind (2007) less than 1%
U.S. need to achieve 20-30% of solar power + other renewables to significantly reduceCO2 emissions
Is this target realistic? (20%-30% solar)
Sterling BurnettEnergy Policy Analyst
Don't think 20-25 y it is going to be 20%
Larry Kazmerski
Fairly certain that it is by 2025 - 25% from solar
National Renewable Energy Lab