because when it gets cold in the winter they would need something hot like hot coco.
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More usefully, it heats water from the Sun's radiation, with little or no input from bought-in gas or electricity, and should pay for itself several times over its life-span so making your fuel bills far lower.
MArs
The Milky Way galaxy (our home galaxy).
That would be planet Earth. Our very own home planet.
Not if the system is standard and in good condition.
In the near Future we will have photo-voltaic {Solar Panel} roofing shingles! Wow! Every home will need a DC storage component and a DC to AC conversion system.
Our spiral galaxy, which we call the Milky Way, is the home of our solar system, yes.
The home system is purely that: it serves only the single house. A solar grid system would feed the national grid.
A powered home generator is a good machine for solar panels. This will convert the heat energy into heating the water which will heat it and make it hot
The Clearwave Electronic Water Softener System is the top rated system available for a home and is available on Amazon at http://www.amazon.com/Clearwave-Electronic-Water-Softener-System/dp/B00080HR9E
Solar distillation does not remove some minerals, microbes, and metals from the water. Some solar hot water systems heat the water in your home with a closed antifreeze-added solution that runs through pipes to heat the water. Unless you are talking about drinking the glycol solution or there is a leak into your drinking water then yes, it is edible.
MArs
2561
It costs about $2000 to $5000 install a basic solar energy system for your home in Arizona. You can find more information at www.srpnet.com/environment/earthwise/solar/
Amazon is a good bet, as well as sites such as http://www.solarcity.com/residential/solar-pricing.aspx prices range greatly from a couple thousand dollars to several thosand ($2000+)
Home solar power generation can be very expensive if you're not careful. The costs can really blow up, so make sure that you have a plan before you start yanking out your wiring in hopes of changing the world. Start small with a water heater based on solar energy storage and then do some research on setting up a cheap system at home. The good news is that most states will pay you for the power you put back into the grid with solar.
Yes, you can directly heat water or other stuff. At home, we have (1) a solar system to heat water (and store it in a tank), which we use mainly for taking a shower, (2) a solar stove, which we use to cook when there is enough sunshine.
It can be used in several forms, directly and indirectly. For example, you can sit in the sunlight to get warm. We use it at home for cooking (with a solar cooker), and for heating water, which we use mainly for taking showers (with a solar water heating system).