Can roofs be entirely covered with solar panels to run the homes electricity? If so why don’t they?

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It is so hot and usually sunny in Florida. Why can’t we use this to our advantage?

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Is it possible to build a machine that can build metallic and organic atoms entirely from solar power?

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As a possible implementation for self-replicating robotic colonies in space.

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Could the US government stipulate that any tax breaks or subsidies given to energy companies must go entirely?

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to green, clean energy research, devolopment, demonstration and diffusion, as a small part of the larger plan, to lessen and then reverse climate change? Could this be part of the ongoing green reforms in government, which, I feel, should be …

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Can you run a home entirely on solar power?

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If so how many pannels would you need, and what would the equipment cost?

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Are there any greenhouses that are warmed entirely by geothermal means?

I am curious as to the viability of greenhouses in colder climates producing food year round that are heated entirely by geothermal. My understanding is that geothermal can provide heat to about 54 degrees f. So, a follow-up question would …

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