In most cases, the grid electricity supply is erratic during the night. Battery-coupled solar-powered water pumps running on a renewable source of energy ensure water supply anytime water is required.

Solar PV pumps help communities have access to water in remote off-grid areas. In a small village in Ethiopia, women and girls used to walk for miles to collect water from faraway ponds and rivers.

Heat pumps are common features in houses in countries like Norway and Sweden but haven’t taken off yet in the UK.

The scheme, introduced in the Feb budget earlier this year, was launched to enable farmers to use solar-powered pumps to draw water from reservoirs to irrigate fields during the daytime at almost ...