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Hot Water Boost uses the energy you are generating from your pv array that you are not otherwise using in the home to heat the water in your tank.
You only need to have a hot water tank with an immersion in your home for you to use Hot Water Boost and get even more savings from your investment in PV. In summertime you can expect to get a full tank of hot water if you’re out a lot in the daytime or have a large pv array and low energy usage. In winter Hot Water Boost will use excess pv energy generation to preheat your water so you will still be saving throughout the year.
Hot Water Boost itself, typically installed in the airing cupboard next to the immersion
A “Sender” located at the main electricity meter, often found outside in a box
…and they talk to each other wirelessly which makes for a no fuss, no mess installation.
The Sender has a clamp which monitors if electricity is being fed back to the grid or not. You may be at home and only using 20-30% of the energy produced by the PV array. This information is picked up and transmitted to the Hot Water Boost which cleverly knows just how much energy to release to the immersion. Even a steady flow of just 200W to the immersion will start to raise the temperature and save you money.
