Plug-In Solar Panels UK:
The Complete 2026 Guide
The UK government announced plug-in solar legalisation in March 2026. Full self-installation is anticipated to arrive in July 2026. Here is everything you need to know — and the best systems to buy now.
UK Plug-In Solar Legalisation Timeline
✓ 16 Mar 2026
Government announces plug-in solar legalisation
✓ 15 Apr 2026
BS 7671 Amendment 4 published — wiring regulations updated
⏳ Jul 2026
BSI product standard — self-installation anticipated to become legal
⏳ Late 2026
Supermarkets and major retailers begin stocking certified kits
Sources: DESNZ ministerial statement 16 March 2026 · IET BS 7671 Amendment 4 · BSI consultation
Important (June 2026): Grid-connected plug-in solar (self-install into a 3-pin socket) is not yet legal in the UK. The BSI product standard is expected July 2026. The complete kits below require a qualified electrician for legal grid connection until then. Full legal guide →
Best UK Plug-In Solar Systems 2026
Ranked by features, value, and readiness for the UK self-installation rollout expected July 2026.
How Much Could You Save?
The UK government estimates £70–£110/year for an 800W system. Real-world savings depend heavily on how much of the electricity you use yourself — a household out during the day saves far less than one at home or with battery storage. The figures below show that range at current Ofgem rates (~25p/kWh).
400W system
£25–£90
~320–400 kWh/yr
600W system
£35–£140
~480–650 kWh/yr
800W system
£48–£190†
~650–760 kWh/yr
† Lower end of each range assumes ~30–35% self-consumption (typical for a household out during the day, no battery); upper end assumes ~70–90% (working from home or with battery storage). Generation figures are for a south-facing installation in central England (PVGIS). Actual savings vary by orientation, location, and usage. See our savings guide for full analysis.
Full Comparison
All systems currently available on Amazon UK, compared side by side.
| System | Rating | Price | AC Output | Battery | Warranty | App | UK Status | |
|---|---|---|---|---|---|---|---|---|
EcoFlow STREAM Balcony Solar System Editor's Choice | 4.2★ | from £449 | 800W | – | 5 years (microinverter) | ✓ | Electrician req. | Buy → |
EcoFlow STREAM Ultra with 1.92kWh Battery Best with Storage | 4.1★ | from £1,259 | 800W | 1.92kWh | 10 years (LFP battery, 6,000 cycles); 5 years (microinverter) | ✓ | Electrician req. | Buy → |
Supermarket Plug-In Solar Kit Coming Soon | 0★ | Expected ~£400 | 800W | – | TBC | – | Electrician req. | Soon |
Prices approximate and subject to change. Always check Amazon for current pricing. Last verified June 2026.
Buy Now vs Wait Until July?
Buy Now (With Electrician)
EcoFlow STREAM systems are available on Amazon UK now and can be legally installed by a qualified electrician (typically £150–£300 one-off). You start saving on energy bills immediately.
Wait Until July 2026
The BSI product standard is expected July 2026, after which UK-certified kits can be self-installed into a 3-pin socket. Major retailers, including well-known supermarkets, are expected to stock kits. Waiting means months of lost savings but simpler, electrician-free installation.
Buy a Complete Kit Now
Complete grid-feed kits such as the EcoFlow STREAM Balcony System are available now and can be legally connected by a qualified electrician (typically £150-£400 one-off), so you start saving on bills immediately.
Register Your Interest
Sign up for retailer notifications so you are first in line when UK-certified plug-in solar kits launch. Demand is expected to be high and initial stock may be limited.