UK Wiring Regulations Prohibit Home Battery Systems in Lofts

Effective April 15, 2026, the UK will implement updated wiring regulations that prohibit the installation of home battery systems in lofts and other high-risk areas. The new Amendment 4 to BS 7671:2018 aims to improve fire safety and ensure that battery systems are installed in accessible, ventilated locations.

Specific areas now deemed unsuitable for installation include lofts, escape routes, and hallways, largely due to concerns over thermal runaway associated with lithium-ion batteries. Homeowners must now consider alternative locations such as garages, external walls, or outbuildings that meet safety requirements for maintenance and isolation. The changes necessitate careful planning for battery placement, reflecting a growing focus on safety in energy storage solutions.