Is plug-in solar legal in the UK?

Yes — since 27 August 2026 households can self-install approved plug-in solar kits of up to 800W (AC) that plug into a standard socket, provided the kit is on the ENA type-test register and you notify your network operator within 28 days.

Can renters install plug-in solar?

Tenants can formally request permission under the Renters’ Rights Act 2025, and landlords cannot unreasonably refuse. The kit unplugs and moves home with you.

Do plug-in panels get export payments?

Not yet. Self-installed kits can’t currently be MCS-certified, so they don’t qualify for Smart Export Guarantee payments — the value comes from using the power yourself. This is expected to change around 2027.

DIY & Plug-In Solar in the UK — The 2026 Rules, Made Simple

Bills went up again this winter. The price cap rose 4% on 1 October to £1,723 a year for a typical home — the fourth winter running above pre-crisis prices — and it resets again on 1 January. Every kWh your roof makes is one you never buy at 26.32p.

Source: Ofgem, 1 Oct 2026 · checked 19 Oct 2026

The rules in plain English

800W max output. The microinverter is capped at 800W AC — up to 2,000W of panels can sit behind it.
Straight into the socket. A standard UK plug (BS 1363) into a fixed wall socket — extension leads and adaptors aren’t allowed.
Approved kits only. The complete product must be listed on the ENA G98 type-test register. Approval is per product, not for plug-in solar in general — check before you buy.
Tell your network operator. A short online G98 form within 28 days of plugging in. It’s a notification, not a permission request.
Renting? You can ask. Under the Renters’ Rights Act 2025 tenants can formally request it, and landlords can’t unreasonably refuse. The kit moves home with you.
No export payments (yet). DIY installs can’t be MCS-certified, so no Smart Export Guarantee — the value is in using the power yourself. Expected to change around 2027.

Based on SI 2026/848 and the government’s Plug-in Solar Device Interim Product Specification (v2, July 2026). Good plain-English explainers: Fuse Energy and TechRadar. Checked 2026-10-19. Tell your home insurer before installing.

Does 800W actually do anything?

A well-placed 800W kit facing somewhere near south produces roughly 600–750 kWh a year in most of the UK. Used rather than exported, that’s worth around £160–£200 a year at the current 26.32p capped rate — against kits that commonly cost £400–£800, experts put payback at 3–5 years. It won’t run a whole house; it quietly erases your fridge, router and standby load all day.

The kit we actually run

We long-term test an Anker SOLIX Solarbank — a plug-in battery that pairs with balcony panels. Two honest notes before you buy anything:

1. Solar-plus-battery kits sold as one box sit outside the plug-in specification above, so check the exact model is on the ENA register before self-connecting panels — or have it professionally installed.

2. As a pure plug-in battery it works today with no paperwork at all: charge it from cheap overnight electricity, run your appliances from it at peak prices. On a smart tariff that arbitrage alone can cover the kit — the solar is a bonus.

Our tested battery kit

The Solarbank we run: plugs in, stores cheap or solar power, no installer needed.

See our tested kit

Make the maths work harder

Cheap-rate charging needs a smart tariff. Octopus’s routinely beat the cap — our link adds £50 credit.

Switch & get £50

When a full roof still wins

Plug-in is the cheapest way in — but per pound, a full 4 kW roof install saves 3–4× more each year and adds export income. If you own your roof, start with your town’s real numbers: find your town.