The National Solar Water Heater (NSWH) programme of the Department of Minerals and Energy (DMRE) that is meant to install 5 million units in households by 2030 hit a snag on the first 82 000 units.
Find out more about solar water heating. Alternatively, if you have an immersion heater and solar panels or a wind turbine generating electricity, you can divert any excess to your immersion heater.