Solar Thermal refers to the process of converting sunlight to heat. Swimming pools, homes and large buildings can use solar thermal technologies to heat water for pools, showers, heating systems and to melt snow off driveways.
Heating a building with solar energy requires solar collectors to be installed on the top of buildings to collect the solar energy and convert it into heat.
There are two types of solar water heating systems, passive and active. Passive panels contain tanks that water is stored in and heated throughout the day. When hot water is needed water is drawn from the panel into a heat source (water heater, tank-less water heater, etcetera) and then into the home.
Active solar panels operate on a closed loop system. Water is pumped into the active panels that contain tubes that heat the water as it passes through them. From there the water enters a heat exchanger in a storage tank and heats the water in that tank through direct heat transfer. When hot water is needed it is drawn from the storage tank into the home or into a heat source such as a water heater or tank-less water heater.
OTHER ADVANTAGES OF SOLAR HOT WATER HEATING
- Lower utility costs today, no future utility cost increases
- Provides additional hot water storage capacity for your home or business
- Green, clean, environmentally friendly energy source
- Very low to no operating maintenance expense
- Maintain regular hot water supply during electric utility outages