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Solar water heating systems – Advantages and disadvantages

Solar water heating systems use solar energy to deliver hot water, and not electricity like this is the case with solar panels. The popularity of solar water heating systems continues to grow so let us learn something about their advantages and disadvantages.

Solar water heating systems advantages:

- they use solar energy which is a free, renewable source of energy

- by using solar energy they help reduce our dependence on fossil fuels

- in sunny and warm places with high insolation values solar water heating systems are highly cost effective

- many countries around the world offer favorable incentives for the installation of solar water heating systems

- relatively good payback period, in average between 5-10 years

- low maintenance costs

- you can build your own solar water heating systems (you can find the charts on how to build them on Internet)

- some countries even offer the option of leasing solar water heating systems which can significantly decrease initial costs

Solar water heating systems disadvantages:

- relatively high upfront costs

- in most areas they will require electrical or gas or other fuel backup during the winter period

- payback times can vary greatly mostly due to regional sun (the more insolation, the shorter payback period)

- relatively low efficiency of passive solar water heating systems

- they require excellent overheating and freeze protection

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