What are the differences between windmills that generate power and pump water?

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How deep does a geothermal well need to be in order to generate steam?

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‘well’ as in water is pumped down one hole and comes out an adjacent one. Or to put it another way; How deep before the earth reaches atleast 100C?

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How many kilowatt hours of electricity will the solar panels generate in 20 days?

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A house with a south-facing roof has photovoltaic panels on the roof. The photovoltaic panels have an efficiency of 10.3 % and occupy an area with dimensions 3.35 m by 8.55 m. The average solar radiation incident on the panels …

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What is the probability that none of the houses have solar panels to generate electricty?

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Using a survey conducted in Winter 2009, it was estimated that only 1% of New Zealanders have solar panels on their houses to generate electricity. Consider a random sample of 20 New Zealand households. a) What is the probability that …

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How mant windmills does it take to generate one house per day?

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in what year did windmills start to generate power for homes and bussineses?

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