EcoFlow STREAM Microinverter vs EcoFlow STREAM Ultra
A side-by-side look at the EcoFlow STREAM Microinverter and EcoFlow STREAM Ultra. Winning figures are highlighted.
| EcoFlow EcoFlow STREAM Microinverter | EcoFlow EcoFlow STREAM Ultra | |
|---|---|---|
| Price from | £219 | £799 |
| Max AC output | 800 W | 800 W |
| UK-legal (≤800W) | Yes | Yes |
| Max PV input | 1200 W | 2000 W |
| Battery | — | 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 21 July 2026.
EcoFlow STREAM Microinverter
If you just want to offset daytime usage cheaply, the STREAM microinverter is the value pick. Add a STREAM battery later to store surplus. No battery out of the box, so evening benefit is limited until you expand.
Full EcoFlow STREAM Microinverter review →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 →