HOT WATER SOLAR POWER
Solar hot water systems
Solar hot water systems – also called solar domestic hot water systems can be a cost effective way to generate hot water for your home. They can be used in any climate, and the fuel they use “sunshine” is absolutely free.
How domestic hot water systems work
Currently, solar water heaters are the best option for those who are environmentally conscious. Solar water heaters will still produce some carbon emissions as most solar systems are “active” systems, which require a pump (often using electric power) and a back-up conventional tank to ensure an adequate hot water supply.
A solar hot water system is really quite simple. You’re using the sun’s energy to heat a solar collector full of solar fluid (or water, depending on which type of system you install) which then transfers that heat(or hot water) into your home’s hot water tank.
Solar water heating systems almost always require a backup system for cloudy days and times of increased demand. Conventional storage water heaters usually provide backup and may already be part of the solar system package. A backup system may also be part of the solar collector , such as rooftop tanks with thermosyphon systems. Since an integral-collector storage system already stores hot water in addition to collecting heat, it may be packaged with a demand (tankless or instantaneous) water heater for backup.