One of the least expensive and most effective ways to “go solar” is to install a solar hot water system. When people think about solar they usually think about PV panels. Those are the ones that generate electricity but that is not the only option available.
Solar hot water systems address a major energy cost of living in your home. There are several types of systems to consider and a good rule to follow is the simpler the better.
Instead of “PV” panels a solar hot water system is comprised of thermal collectors that capture the sun and convert it directly to heat energy. The energy is stored in a hot water tank. Think about this tank like a battery. It is storing the solar energy you have captured for future use.
There are many types of solar hot water heaters employed around the World based on climate and capacity. It is best to consult with an expert on the system that provides the biggest impact for you with the minimum of complexity.
Solar hot water systems are very efficient and can attain easily attain temperatures higher than you would use for domestic uses. For this reason many systems have a mixing valve or tempering valve that can mix the very hot solar heated water with cold as it exits the tank. This has the effect of increasing the amount of solar hot water available to you from your system.
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