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Solar water heating

Solar water heating enables you to dramatically reduce the electricity or gas you use to heat your water, thereby reducing carbon emissions and addressing other environmental issues.
Solar water heating uses the sun's warmth to heat your water, reducing your carbon footprint and saving you a lot of money in the long run.
Solar water heaters work by using the warmth of the sun to heat your water. While much of the attention is on solar photovoltaics (PV), the fact is that solar water heating is 5 times more efficient than solar PV.

This higher efficiency reduces the payback period. While purchasing and installing a solar water heaters does require a significant upfront cost, the payback period can be as little 3 to 4 years, depending on climate. That compares with a typical payback period of 10-15 years for PV.

Because solar water heaters last between 15-20 years, after the payback period, you essentially get free hot water (typically about 60-80% of your hot water consumption) for many years. That makes a solar water heater a great green investment.

The length of the payback period depends on the amount of sun and climate in a given region. The payback period will also depend on financial incentives that may or may not exist in your part of the world. In many cases, there are financial incentives available for solar water heaters, which can dramatically reduce the payback period. For example, in the US, significant tax credits are available for solar water heaters, and in certain states such as California, there are generous rebates available as well.

A solar water heater is a great way to reduce your carbon footprint and save a lot of money over time.