Solar hot water systems can provide up to 90% of your domestic hot water needs, and reduce your power bills by 50–85% depending on your existing system. Realising these benefits however, is dependent on appropriate sizing, installation and usage of the system. Systems can rely almost entirely on their booster and provide minimal energy consumption savings if not installed or managed appropriately. There are a range of solar hot water systems and they range between $3,000-7,000 fully installed.