We're keeping an eye on big changes coming to home heating. From late 2027, licensed suppliers could temporarily dial down heat pumps during peak demand, and it's all about keeping the lights on as more homes switch to electric heating.
Why this is happening
The National Grid faces bigger winter loads as heating electrifies. Ofgem is building a licensing system so only approved firms can manage these devices, with rules expected by the end of 2026. The whole thing stays voluntary – you'll need to give clear consent first.
Will your home stay warm?
Trials like EQUINOX found 85% of people noticed little or no difference in comfort under normal winter conditions. Smart controls and a bit of pre-heating should help most households ride out short adjustments without feeling the cold.
What it means for you
New heat pumps will need smart features built in by December 2027, letting them respond to grid signals while you keep the final say. Some suppliers may offer cheaper tariffs in return for joining in. Check our heat pump comparison for the latest options and grants.
For the latest official updates, head to the National Grid ESO site.
