EcoFlow STREAM UK Launch: September 2026 Details
EcoFlow STREAM is the first UK-certified plug-in solar kit, launching September 2026. Pre-order details, specs, and pricing.
Launch Timeline
EcoFlow has confirmed the STREAM will launch in the UK in September 2026, making it the first plug-in solar kit certified to the DESNZ Interim Product Specification v2.
Key dates:
- 12 August – 15 September 2026: Early-bird pre-order window with discounted pricing
- 27 August 2026: Plug-in solar becomes legal under SI 2026/848
- September 2026: First STREAM kits ship to UK customers
- Late 2026: Available through major retailers (B&Q, Currys, Amazon)
What Is the EcoFlow STREAM?
The STREAM is an 800W plug-in solar system designed specifically for the UK market. It includes:
- Two 400W rigid solar panels with 23% efficiency
- STREAM microinverter with 800VA output
- 600Wh battery (DC-side, for self-consumption optimisation)
- BS 1363 plug with 5A fuse (IPS v2 compliant)
- WiFi-connected app with real-time monitoring and smart scheduling
- Mounting hardware for balcony, garden, or flat-roof installation
For a detailed review of the STREAM's features, see our full EcoFlow STREAM review.
UK Pricing
| Configuration | Expected Price |
|---|---|
| STREAM 800W (panels + inverter) | ~£499–599 |
| STREAM 800W + 600Wh battery | ~£799–899 |
| STREAM 800W + balcony mount | ~£599–699 |
| STREAM 800W + battery + mount | ~£899–999 |
Early-bird pre-order pricing is expected to be 10-20% below retail prices.
How It Compares
| Feature | EcoFlow STREAM | DIY Hoymiles build | DIY APsystems build |
|---|---|---|---|
| Legal from 27 Aug | Yes (if certified) | No | No |
| Max output | 800W | 800W | 800W |
| App monitoring | Yes | Via DTU | Built-in WiFi |
| Battery option | 600Wh | No | No |
| Total cost | ~£799 (with battery) | ~£400-500 | ~£430-600 |
| Warranty | TBC (likely 5yr+) | Component-level | Component-level |
The STREAM costs more than a DIY build, but it's the only option that's legal as a certified system. For a detailed cost breakdown, see EcoFlow STREAM vs DIY microinverter kit.
- 800W dual-panel plug-in solar kit
- 600Wh battery with smart scheduling
- App monitoring with real-time generation data
- Balcony, garden & flat-roof mounts available
- Discounts on solar panels, batteries & kits
- STREAM kits and accessories included
- Free UK delivery on qualifying orders
- Sale ends 31 August 2026
STREAM vs STREAM Ultra
EcoFlow also makes the STREAM Ultra, which offers higher output for European markets. However, the UK's 800VA cap means the Ultra's additional capacity is limited to the UK-legal output. See our STREAM vs STREAM Ultra comparison for details.
Installation
The STREAM is designed for genuine plug-and-play installation. Our step-by-step installation guide covers:
- Choosing your location (balcony, garden, or flat roof)
- Mounting the panels
- Connecting the cables
- Plugging into a wall socket
- Setting up the EcoFlow app
- Notifying your DNO
Should I pre-order or wait?
If you want the best price and don't mind being an early adopter, the early-bird pre-order is worth it. If you'd prefer to wait for reviews and price competition, kits from other manufacturers should appear by late 2026.
Will the STREAM work with my existing panels?
The STREAM is sold as a complete certified system. Using it with third-party panels may void the certification and potentially make the setup non-compliant with the IPS v2.
How much will I save?
Use our savings calculator for your postcode. A typical 800W system in southern England saves £150-250 per year.
Related reading
See how much plug-in solar could save you — with real data for your postcode.