What is a solar electric or photovoltaic system?

Part 2 of Get Your Power from the Sun. Photovoltaic (PV) systems convert sunlight directly to electricity. They work any time the sun is shining, but more electricity is produced when the sunlight is more intense and strikes the photovoltaic modules directly (as when rays of sunlight are perpendicular to the photovoltaic modules). Unlike solar […]

What are the maintenance issues and repair costs for a solar thermal system?

Part 7 of Heat Your Water With The Sun. The costs of maintaining your solar thermal system depend on the type of technology you choose and how often temperatures in your area fall below freezing. Properly maintaining your system will keep it running smoothly. Passive systems do not require much maintenance. For active systems, discuss […]

How big should my solar thermal system be, and which features should I look for?

Part 4 of Heat Your Water With The Sun. Some of the answers to questions about system size and features depend on how you plan to use the solar system. Here, you’ll find general information on sizing systems for water heating, swimming pools, and space heating. To locate more specific information, please see Getting help. […]

Background: Heat Your Water With The Sun

Part 2 of Heat Your Water With The Sun. What is solar heating? Solar heaters, or solar thermal systems, provide environmentally friendly heat for household water, space heating, and swimming pools. The systems collect the sun’s energy to heat air or a fluid. The air or fluid then transfers solar heat directly or indirectly to […]