Shift washing, charging and other flexible use into daylight where practical.
Rules & safety
Can you use a battery with plug-in solar?
Why solar-only devices and plug-in battery systems have different rules.
WHERE PLUG-IN SOLAR ENDS · WHERE STORAGE BEGINS
Use the sunshine now—or explore a separate battery route.
Plug-in solar is a solar-only route: it can reduce daytime grid use, but adding a battery does not extend that route. If you want to store energy for later, assess a separately designed installed battery—or an emerging plug-in product under its own connection, installation and product rules.
Plug-in solarGenerates in daylight
Use it nowReduce grid imports
SEPARATE ROUTEStore & optimiseInstalled battery rules apply
A battery can move energy into the evening, but it is not part of the current plug-in solar route.
Once a compatible installed battery is in place, tariffs, optimisation and virtual power plants can change how it charges, discharges and earns.
Explore optimisation and VPPsThe short answer
The current specification excludes plug-in batteries and solar devices integrated with battery systems. Adding a battery is not covered by the new British socket connection route.
The scope is explicit
The final Interim Product Specification covers solar-only devices. It expressly excludes plug-in battery systems and plug-in solar PV devices integrated with battery systems.
A product can have a real European market and useful technical features without qualifying for this particular UK route. An 800W label does not resolve the distinction.
Three different situations
- Solar-only compliant plug-in device: the new route may apply, subject to all product and installation conditions.
- Socket-connected solar-and-battery or battery-only device: the current IPS does not provide the route.
- Professionally designed permanently connected battery: separate electrical and network requirements apply.
Products described as plug-in or balcony batteries still need to be judged on their actual UK route. Battery Boost’s tracker for emerging plug-in battery products separates UK-available, hardwired, EU-market and announced products rather than treating those labels as equivalent.
What if the home already has a battery?
Adding generation means considering the combined installation. Ofgem’s decision addresses aggregate microgeneration capacity and the applicable network route.
Ask the original installer to assess compatibility, metering and control behaviour. Do not assume surplus from every plug-in kit will automatically charge every existing battery.
The connected inverter and control route usually decide what can work together. Battery Boost’s battery and inverter compatibility checker can identify relevant tariffs, flexibility services and optimisation tools, with final eligibility still set by the provider and installer.
Portable power stations are another category
A portable power station may supply suitable appliances through its own outlets, following its instructions. That does not make it suitable for feeding a home circuit through a wall socket.
Never improvise a lead to backfeed a socket. For home backup, ask for a designed installation with the necessary isolation and protection.
If most of your demand is after sunset
Use conservative self-consumption assumptions before choosing a solar-only kit. A professionally installed battery may address a different need.
Future standards may change, but a product launch is not evidence of a change in the rules. We will date any regulatory update and link its source.
If an installed battery is the better fit, compare the whole household tariff and understand who will control charging and discharging. Battery Boost keeps a current battery-tariff tracker alongside its explanation of home-battery optimisation.
Source check: 14 September 2026
Prepared from the linked sources. This is guidance, not a product certification or an assessment of your home. Tell us about a correction.