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enabling year-round production and the growth (in enclosed environments) of specialty crops
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What is one purpose of a greenhouse?
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produce cucumbers year-round for the Roman emperor Tiberius
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What was one of the first uses of a greenhouse?
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Europe
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Where were the first modern greenhouses built?
|
The World Solar Challenge
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What is the name of the solar powered car race held every two years?
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90.87
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What was the winner of the World Solar Challenge's average speed in 2007 in km/h?
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a biannual solar-powered car race
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What is The World Solar Challenge?
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1987
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When was The World Solar Challenge started?
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67 kilometres per hour (42 mph)
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What was the average speed of a winning solar powered car in 1987?
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90.87 kilometres per hour (56.46 mph)
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What was the average speed of a winning solar powered car by 2007?
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The North American Solar Challenge and the planned South African Solar Challenge
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What are some other similar car races that use solar powered vehicles?
|
1975
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The first practical solar boat was constructed in what year?
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1975
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When was the first solar powered boat made?
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Kenichi Horie
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Who first crossed the Pacific ocean using a solar powered boat?
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the sun21 catamaran
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What was the name of the first solar powered boat that crossed the Atlantic ocean?
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40
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What altitude did the Solar Riser reach in feet?
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Solar Impulse
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What is the name of the aircraft circling the globe in 2015 via solar power?
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1974
|
When was the first unmanned flight by a solar powered plane made?
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29 April 1979
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When was the first solar powered manned flight made?
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July 1981
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When did the Solar Challenger cross the English Channel?
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California to North Carolina
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Where did Eric Scott Raymond fly using a solar powered plane in 1990?
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36 hours
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How long is the solar powered plane Solar Impulse able to remain in the air?
|
hydrogen production from protons
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What is a possible alternative to making carbon-based fuels from reduction of carbon dioxide?
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Solar chemical processes
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What process converts solar energy into storable and transportable fuels?
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artificial photosynthesis
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What solar process can be used to produce different fuels?
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The Solzinc process
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What is the name of the process under development at the Weizmann Institute?
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pure zinc
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The Solznic process produces what?
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Hydrogen production technologies
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What has been a main area of solar chemical research since the 1970s?
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uses concentrators to split water into oxygen and hydrogen at high temperatures
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What is one of the thermochemical processes that has been explored besides electrolysis?
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Solzinc process
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What is the name of the process being developed by the Weizmann Institute?
|
heat
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In what form do thermal mass systems store solar energy?
|
Thermal mass systems
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What is the system called that can store solar energy in the form of heat?
|
water, earth and stone
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What are some of the materials used in thermal storage systems?
|
reduce overall heating and cooling requirements
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What is something that can be accomplished by a thermal mass system?
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thermal
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Paraffin wax is an example of what kind of storage media?
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The "Dover House"
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The first Glauber's salt heating system was first used where?
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paraffin wax and Glauber's salt
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What are some examples of phase change materials?
|
64 °C or 147 °F
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What are the approximate temperatures that can be delivered by phase change materials?
|
Dover House
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What was the name of the heating system that first used Glauber's salt?
|
they are low-cost, have a high specific heat capacity and can deliver heat at temperatures compatible with conventional power systems
|
Why are salts good for thermal storage?
|
1.44 terajoules (400,000 kWh)
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How much energy was the Solar Two able to store using salts?
|
rechargeable batteries
|
Where do off-grid PV systems store excess electricity?
|
rechargeable batteries
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What do off-grid PV systems use to store excess electricity?
|
Net metering programs
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What are the programs that gives credit to households for delivering electricity to the grid called?
|
by 'rolling back' the meter whenever the home produces more electricity than it consumes
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How is the credit to households accomplished?
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Most standard meters accurately measure in both directions
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Why is a second meter usually unnecessary to monitor electricity use?
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a hydroelectric power generator
|
When water is released due to high demand, the pump become swhat?
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water pumped when energy is available from a lower elevation reservoir to a higher elevation one
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Pumped-storage hydroelectricity stores energy in what form?
|
by releasing the water, with the pump becoming a hydroelectric power generator
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How is the energy stored by pumped-storage hydroelectricity recovered?
|
1973
|
The oil embargo in what year was a contributing factor to the reorganization of energy policies?
|
The 1973 oil embargo and 1979 energy crisis
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What brought attention to solar technologies in the 1970s?
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the Federal Photovoltaic Utilization Program in the US and the Sunshine Program in Japan
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What are the names of some of the incentive programs used to promote solar technology?
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SERI, now NREL
|
What is the name of the solar energy research facility in the US?
|
NEDO
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What is the name of the solar energy research facility in Japan?
|
Fraunhofer Institute for Solar Energy Systems ISE
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What is the name of the solar energy research facility in Germany?
|
the 1920s
|
The solar water heaters introduced in the US in the 1890s saw growth until what time period?
|
20% per year
|
Since 1999, what average rate has the solar water heating sector progressed at?
|
in the 1890s
|
When did the use of solar water heaters in the US first begin?
|
falling petroleum prices
|
Why did interest in solar water heating decrease in the 1980s?
|
20%
|
Growth of solar water heating development has averaged how much per year since 1999
|
154 GW
|
What was the estimated capacity of solar water heating and cooling in 2007?
|
The International Energy Agency
|
Which organization believes that solar energy can solve some of our most pressing issues?
|
The International Energy Agency
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Who said that solar energy can help solve some of the most urgent problems in the world?
|
glass in building
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ISO 9050 relates to standards for what?
|
materials used in solar water heaters
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ISO 10217 relates to standards for what?
|
ISO 9050
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What is the name of the standard related to glass in building?
|
ISO 10217
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What is the name of the standard related to the materials used in solar water heaters?
|
passive solar or active solar
|
What are the technologies used to capture solar energy characterized as?
|
photovoltaic systems, concentrated solar power and solar water heating
|
What are some active solar techniques used to harness solar energy?
|
orienting a building to the Sun
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What is an example of a passive solar technique?
|
559.8 EJ
|
What was the total worldwide energy consumption in 2012?
|
1,575–49,837 exajoules (EJ)
|
What is solar energy's yearly potential?
|
The large magnitude of solar energy available
|
What makes solar energy an appealing source of electricity>
|
The United Nations Development Programme
|
Who estimated the annual potential of solar energy in 2000?
|
through reliance on an indigenous, inexhaustible and mostly import-independent resource
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How will solar energy increase energy security?
|
the costs of mitigating global warming
|
What costs will solar energy lower?
|
learning investments
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What should the cost of incentives for producing solar energy be considered?
|
keep fossil fuel prices lower than otherwise
|
What effect will solar energy have on the price of fossil fuels?
|
geography, time variation, cloud cover, and the land available to humans
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Why does the amount of usable solar energy differ from the amount near the planets surface?
|
areas that are closer to the equator have a greater amount of solar radiation
|
Why does geography have an effect of the amount of solar energy available?
|
photovoltaics
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What is the process called that can increase solar energy in areas further away from the earth's equator?
|
during the nighttime there is little solar radiation on the surface of the Earth for solar panels to absorb
|
Why does time have an effect of the amount of available solar energy?
|
clouds block incoming light from the sun and reduce the light available for solar cells
|
What effect does cloud coverage have on the amount of solar energy available?
|
solar panels can only be set up on land that is unowned and suitable for solar panels
|
Why does land availability have an effect on solar energy?
|
many people have discovered that they can collect energy directly from their homes this way
|
Why are roofs a good place for solar panels?
|
insolation, cloud cover, and the land that is usable by humans
|
What factors were taken into account in the estimate published in 2000 on solar energy?
|
1,575–49,837 EJ per year
|
What was the total potential of solar energy found in the estimate?
|
conversion of sunlight into electricity
|
What is solar power?
|
either directly using photovoltaics (PV), or indirectly using concentrated solar power (CSP)
|
How is sunlight converted into electricity?
|
lenses or mirrors and tracking systems
|
What does a concentrated solar power system use?
|
focus a large area of sunlight into a small beam
|
What is the purpose of a concentrated solar power system?
|
photoelectric effect
|
What method does the photovoltaics system use to turn light into electricity?
|
Sunlight
|
What has influenced the design since the beginning of architectural history?
|
Greeks and Chinese
|
Who first utilized solar architecture?
|
toward the south
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In which direction were the buildings built by the Greeks and Chinese facing?
|
a black balloon that is filled with ordinary air
|
What is a solar balloon?
|
the air inside is heated and expands causing an upward buoyancy force
|
What happens when sunlight shines on a solar balloon?
|
the toy market
|
What is the use of solar balloons typically limited to?
|
the surface-area to payload-weight ratio is relatively high
|
Why is the use of solar balloons typically limited to the toy market?
|
driven by an expectation that coal would soon become scarce
|
Why was solar technology developed in the 1860s?
|
increasing availability, economy, and utility of coal and petroleum
|
What slowed the development of solar technologies in the early 20th century?
|
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