PowerGuide

EcoFlow STREAM Ultra vs Zendure SolarFlow 800

A side-by-side look at the EcoFlow STREAM Ultra and Zendure SolarFlow 800. Winning figures are highlighted.

EcoFlow
EcoFlow STREAM Ultra
Zendure
Zendure SolarFlow 800
Price from £799 £499
Max AC output 800 W 800 W
UK-legal (≤800W) Yes Yes
Max PV input 2000 W 1200 W
Battery 1.92 kWh 0.96 kWh
Battery expandable Yes Yes
MPPTs 4 2
Weatherproofing IP65 IP65
App control Yes Yes
Panels included No No

Best value per row highlighted. Prices last checked 21 July 2026.

EcoFlow STREAM Ultra

The standout balcony system in 2026: a legal 800W output, generous 2,000W of PV input across four trackers, and a built-in battery so evening usage is covered. Expandable if you want more storage later.

Full EcoFlow STREAM Ultra review →

Zendure SolarFlow 800

Zendure's strength is modular storage — begin with a 0.96kWh module and stack more later. A flexible middle-ground between a bare microinverter and the all-in-one STREAM Ultra.

Full Zendure SolarFlow 800 review →