# EcoFlow STREAM Ultra 1.92kWh Balcony Power Plant

EF ECOFLOW: EcoFlow STREAM Ultra is a home-focused balcony power plant with battery storage, described as supporting solar input, AC output and capacity expansion. The listing also promotes app-based energy management, but several power figures in the listing are not consistent with one another.

- [Original product page](https://bargainpostbox.co.uk/product/ecoflow-stream-ultra-balcony-power-plant)
- [View offer](https://bargainpostbox.co.uk/visit/ecoflow-stream-ultra-balcony-power-plant)
- Market: UK
- Language: en-GB
- Currency: GBP
- Brand: EF ECOFLOW
- Model: STREAM Ultra
- Category: Tools & Garden > Power & Backup Energy > Power Stations
- Price: 679.00 GBP
- Previous price: 799.00 GBP
- Discount: 15%
- Price checked: 2026-11-12T07:02:07.174Z
- Rating: 4.1 / 5
- Reviews: 114

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- Advertised storage capacity starts at 1.92kWh, the listing says it can expand from 1.92kWh to 11.52kWh by connecting up to 6 units.
- The listing describes 2800W solar input with four MPPT channels and dual AC ports.
- AC coupling is claimed to let stored solar energy power household appliances indoors.
- An app is described as using electricity prices, household usage and device status to schedule energy use.

## Pros

- The stated 1.92kWh starting capacity and claimed expansion to 11.52kWh offer a clear route to adding storage over time.
- Four MPPT channels are claimed for solar input, which may be useful when connecting multiple solar inputs.
- The claimed indoor AC-coupled operation supports using stored solar energy for household appliances without requiring the unit to be placed outdoors.

## Specifications

### Identity
- Brand: EF ECOFLOW
- Model: STREAM Ultra
### Power and use
- Wattage: 2300 watts
- Output wattage: 2300 Watts
- Maximum engine power: 2800 Watts
- Fuel type: Solar
- Recommended use: Home
- Total power outlets: 2

## Before you buy

- Listing details are contradictory or inconsistent: the title gives 1.92kWh storage, feature text says expansion to 11.52kWh, a separate highlight claims expansion to 21kWh, and stated output figures include 2300W, 2800W, 1200W and 600/800W micro-inverter ratings, the exact configuration, port output and expansion limit are therefore unconfirmed. Confirm the selected listing's ratings and included equipment before planning a system.

## In the box

- Stream Ultra (Included)

## A good fit for

- Households seeking a solar-storage system for balcony or home use, provided the advertised output and system limits match their requirements.
- Buyers interested in app-managed use of stored solar energy and possible expansion of storage capacity.

## Less suited to

- Buyers who need a confirmed, single AC-output rating or a guaranteed expansion ceiling before choosing a system.
- Buyers expecting solar panels or additional storage units to be included, the supplied contents list names only the Stream Ultra.

## Customer feedback

The available aggregate rating is 4.1 out of 5 from 114 ratings, with 67% at five stars and 11% at one star. That spread suggests ratings are not uniformly positive, but without written feedback the reasons and product-specific strengths or problems cannot be determined. For a system whose listed power and expansion figures conflict, the rating alone cannot confirm suitability for a particular household setup.

## Frequently asked questions

### What storage capacity is advertised?
The title identifies the product as 1.92kWh. Feature text says it expands from 1.92kWh to 11.52kWh, while another highlight claims expansion to 21kWh, so the applicable limit needs confirmation.
### What is the stated AC output?
The listing gives several different figures, including 2300W, 2800W, 1200W and 600/800W for a micro-inverter. These are not reconciled in the supplied details, confirm the exact output for the selected configuration.
### Are solar panels included?
The explicit included-components entry names only Stream Ultra. No solar panels are listed as included.
### Does it support app-based energy management?
The feature text describes an app that analyses electricity pricing, household energy habits and device status to manage time-of-use strategies, this is a manufacturer claim.

## Alternative options

- [ECOFLOW STREAM AC 5000 Balcony Power Plant of Storage 5024Wh & Smart Meter \| Compatible with All Microinverters, 3000W Output, Expandable Up to 90kWh, Intelligent Energy Control](https://bargainpostbox.co.uk/visit/ecoflow-stream-ultra-balcony-power-plant)
- [EF EcoFlow STREAM 5000 Balcony Power Plant with Battery Storage 5024Wh \| 5000W Solar Input \(4 MPPT\), 3000W Dual AC Ports, Expandable to 90kWh, 10000-Cycle LFP Battery, AI Smart Control](https://bargainpostbox.co.uk/visit/ecoflow-stream-ultra-balcony-power-plant)
- [EF ECOFLOW Stream Ultra X 3.84kWh Power Plant with 4 x 500W Solar Panels \| 4 MPPT, 2.8KW Solar Input, 1.2KW Dual AC port, 6000 Charging Cycles, 23kWh Expandable, TOU, AI Intelligent Control](https://bargainpostbox.co.uk/visit/ecoflow-stream-ultra-balcony-power-plant)
- [EF ECOFLOW Stream Ultra X 3.84kWh Balcony Power Plant, 4 MPPT \| 2.8KW Solar Input, 1.2KW Dual AC port, 6000 Charging Cycles, 23kWh Expandable, TOU, AI Intelligent Control](https://bargainpostbox.co.uk/visit/ecoflow-stream-ultra-balcony-power-plant)
- [EF ECOFLOW Stream 800W Micro inverter \| Smart Solar Inverter WiFi for Balcony Solar System, IP67 Waterproof, App Control, MPPT](https://bargainpostbox.co.uk/visit/ecoflow-stream-ultra-balcony-power-plant)
- [EF ECOFLOW Stream 800W Micro inverter with 500W\*2 Solar Panels \| Smart Solar Inverter WiFi for Balcony Solar System, IP67 Waterproof, App Control, MPPT](https://bargainpostbox.co.uk/visit/ecoflow-stream-ultra-balcony-power-plant)
- [EF ECOFLOW DELTA Pro 3 Portable Power Station, 4096Wh LFP Battery \| Expandable to 12kWh, 230V 4000W AC Output, Solar Generator for Home Use, Camping Accessories, Emergencies, RVs](https://bargainpostbox.co.uk/visit/ecoflow-stream-ultra-balcony-power-plant)
- [EF ECOFLOW Portable Power Station RIVER 2 Pro, 768Wh LiFePO4 Battery \| 70 Min Fast Charging, 4X800W \(X-Boost 1600W\) AC Outlets, Solar Generator for Outdoor Camping/RVs/Home Use](https://bargainpostbox.co.uk/visit/ef-ecoflow-river-2-pro-portable-power-station)
- [EF ECOFLOW Portable Power Station RIVER 2 MAX, 512Wh LiFeP04 Battery \| 1 Hour Fast Charging, Up To 1000W Output, Solar Generator \(Panel Not Inc.\) for Outdoor Camping/RVs/Home Use](https://bargainpostbox.co.uk/visit/ef-ecoflow-river-2-max-portable-power-station-512wh)
- [EF ECOFLOW 110W Portable Solar Panel for Power Station \| Foldable Solar Charger Chainable with Adjustable Kickstand, Waterproof IP68 for Outdoor Camping Indoor RV](https://bargainpostbox.co.uk/visit/ecoflow-stream-ultra-balcony-power-plant)

## Add-ons

- [EcoFlow x Shelly Smart Meter - Smart Energy Monitoring for Whole Homes - Using Household Current Compensation - Maximizing Energy Utilization](https://bargainpostbox.co.uk/visit/ecoflow-stream-ultra-balcony-power-plant)

## Images

![EcoFlow STREAM Ultra 1.92kWh Balcony Power Plant — 1](https://bargainpostbox.co.uk/i/C9RvLo77mQRQHQ6fFrTetj_gVE2JX7Kje6mrlCKqsdPjOqDTsvEt7ZqCvyv8aBgwqH2wTIcEXbOmbJ03U6ofAWi39KkpUIGvGbCq4rJmgYLq7CmX-a8s.jpg)

![EcoFlow STREAM Ultra 1.92kWh Balcony Power Plant — 2](https://bargainpostbox.co.uk/i/IK3iq-5zSuPHgm9tKswmRfteF_7n7POd8c-W4BC7xjCvGqQLrxWNYgW8weZxV8ZeYL_Prvg69V57gawVbJoQsvVl2Kw56SmKEfY2lYJ-9LaE8vMzQYgS.jpg)

![EcoFlow STREAM Ultra 1.92kWh Balcony Power Plant — 3](https://bargainpostbox.co.uk/i/NXD4Mb8_qxlcnEXLUcs589-f5kXMx_KLSJTj01Y0UgVaHnNyDzM43vPilzTtqJEzqTCpamNip47XNUCIHGB6-Yi7YbxUlhXkGjUKnC7sH9JZ7ejBOXmT.jpg)

![EcoFlow STREAM Ultra 1.92kWh Balcony Power Plant — 4](https://bargainpostbox.co.uk/i/LfHh0AbJJhy6brms5R03woBJY9bgVB7Rl2M7VrY_lNjPVfBhKqpLNWDUcTeE3sHfmtQe0Dq5V-EssTLelQSydAt3QzkdPieaBXy9FOc5MrNh0wr5Tl5L.jpg)

![EcoFlow STREAM Ultra 1.92kWh Balcony Power Plant — 5](https://bargainpostbox.co.uk/i/FSMj04c24WOXyPx1bNuKXiBu4iU1CU1ROz_SjBMLW9znxCJ-xxRnKjwoNSh3Ls72RhuWUTiHa7dor72lXlqOPgXWBYsINPXef7iXVC0ui8iZ7YvPekfA.jpg)

![EcoFlow STREAM Ultra 1.92kWh Balcony Power Plant — 6](https://bargainpostbox.co.uk/i/4v6ZNFDOtL_6wDrxgKZ6r-JTwRGDV4qeXIq3ryQjQaA5prUH2wSqtycY-nXb_ZjjG9vHBKQXcv1qIKoUzNDtsW7vRgYGHtIVEu0m8vxdfpZRik5ynuLB.jpg)

![EcoFlow STREAM Ultra 1.92kWh Balcony Power Plant — 7](https://bargainpostbox.co.uk/i/CdKvKnMNf0rheguHXEpYemwi0a_01jrlgYFsq9laeHaHPO6o6i_k-FLjEjgHShZvv0QMEbHsQwH0ENwyQMQlnB-5gL9AJtplcUygzlyIxDfrGmWPTtFl.jpg)