SOLAR THERMAL
Solar thermal is a renewable energy system for generating domestic hot water. Solar thermal water heating works in a similar way to leaving a hosepipe in the sun. Solar thermal generates renewable heated water using solar panels (known as “collectors”) fitted at an optimal angle on a roof. Solar heat warms fluid, usually anti-freeze, in the collectors and this is then pumped to heat water stored in a hot water cylinder. A boiler or immersion heater tops up the water to the temperature set by the cylinder's thermostat (>60°C)
SOLAR THERMAL PERFORMANCE
Energy output of solar thermal relates to latitude and levels of direct sunlight. Solar thermal might provide up to 70 percent of the average house’s hot water needs, depending on the amount of hot water used and levels of energy efficiency in place. However, the Energy Saving Trust information is that a more accurate figure is lower than this.
BENEFITS OF SOLAR THERMAL
- Solar thermal should work all year round during the day but consumers will probably need to heat the water further in winter months, using a boiler or immersion heater.
- Solar thermal can save on fuel bills
- Solar thermal should be eligible for renewable heat incentives
- Solar thermal can cost a lot less to install than other microgeneration technologies