A solar electricity system uses PV (Photovoltaic) technology to convert the light emitted by the sun into DC electricity, which is then converted into usable, clean and power. Solar thermal technology (solar hot water), uses the heat produced when the sun’s radiation comes into contact with a series of copper pipes carrying water. This heat directly warms the water which is than diverted into a storage tank for later use. You can tell the difference between the two as solar hot water systems have a tank placed directly above them, while PV systems are easily recognised by the white lines which criss-cross the surface of the panel. It is possible for a PV system to heat your hot water in the same way a kettle does. This is often cheaper and more efficient as you only need to install and maintain a single system.