PowerGuide

EcoFlow PowerStream vs EcoFlow STREAM Ultra

A side-by-side look at the EcoFlow PowerStream and EcoFlow STREAM Ultra. Winning figures are highlighted.

EcoFlow
EcoFlow PowerStream
EcoFlow
EcoFlow STREAM Ultra
Price from £209 £799
Max AC output 800 W 800 W
Max PV input 1000 W 2000 W
Battery n/a 1.92 kWh
Battery expandable Yes Yes
MPPTs 2 4
Weatherproofing IP67 IP65
App control Yes Yes
Panels included No No

Best value per row highlighted. Prices last checked 15 October 2026.

EcoFlow PowerStream

Designed to pair with EcoFlow's portable power stations as storage, exactly the battery set-up the UK plug-in rules exclude. It isn't on the ENA register, so it can't currently be self-installed in Great Britain.

Full EcoFlow PowerStream review

EcoFlow STREAM Ultra

A capable all-in-one system, with 2,000W of PV input across four trackers and a built-in battery, and one of Europe's best-sellers. But in Great Britain the built-in battery rules it out of the plug-in route: it can't be self-installed under the current rules. Worth watching if plug-in batteries are allowed after DESNZ's safety study.

Full EcoFlow STREAM Ultra review