EcoFlow · 800W + 1.92kWh
EcoFlow STREAM Ultra
All-in-one balcony system: 800W microinverter, a built-in 1.92kWh LFP battery and 4-channel MPPT — store the day's generation and use it at night.
A4.6 £799
Specs & review
Balcony Solar
Solar for people without a roof to fill: plug-in kits you set up yourself, no installer needed — and take with you when you move. Germany has over 3 million of them; the UK made them legal in April 2026. Below: the kits worth buying, the batteries that pair with them, and the one form you have to file.
Legal in the UK since 15 April 2026
Plug-in kits up to 800W output are allowed under a free "connect & notify" process —
no installer, no permission required.
The rules, explained →
Balcony & Plug-in Solar Kits
Compare the best balcony and plug-in solar kits in the UK — EcoFlow STREAM, Anker SOLIX, Zendure — by output, battery, price and our verdict. Now legal up to 800W.
5 compared →Balcony Solar Batteries
Compare plug-in balcony solar batteries in the UK — Anker Solarbank, EcoFlow STREAM, Zendure, Marstek — by usable kWh, PV input, cycle life and price.
4 compared →Top-rated balcony solar
Anker SOLIX · E5000 Pro
Anker SOLIX Solarbank 4 E5000 Pro
Anker's flagship plug-in balcony battery: 5kWh usable, a huge 5,000W of PV input across four MPPTs and an 800W grid-tied output — expandable to 30kWh with add-on packs.
A4.6 £1,499
Specs & review
EcoFlow · 800W
EcoFlow STREAM Microinverter
An 800W IP67 microinverter with Wi-Fi and app control — the cheapest legal route into balcony solar, add your own panels.
B4.4 £219
Specs & review