Is solar water heating a viable alternative to gas or electric heating?
Solar should not be seen as an alternative to these heat sources, but rather a supplement. Solar cannot totally replace the need for these sources, as there are times where there is very little, if any sunlight. However, over the course of a year, a correctly sized solar system can provide 60-70% of your household hot water needs. Providing more than this is unadvisable, as too much heat will be generated in the summer.
