Help with installing a solar water heater using solar electric modules
I’m a solar contractor in the Philadelphia region. I’ve installed traditional solar water heaters using flat plate collectors but a homeowner has asked me to install a solar water heater using solar electric modules and a heat pump. This is new to me, I did some basic online research and came across an article on this site written by Martin Holladay, “Solar Thermal is Dead.”
I found a company, Sun Bandit, that does not use a heat pump but rather uses energy from solar electric modules to heat an element in a tank. But the price for their package isn’t any cheaper than if I were to install a traditional flat plate solar water heater for my customer.
How do I design a solar electric water heating system? How many solar modules do I need? What other components do I need? Are there other manufacturers besides SunBandit that sell a prepackaged product?
I’d greatly appreciate any help you all can throw my way.
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