Footnote

1. Annual savings figures are based on internal modelling. Estimated annual generation = PV rated power × PV generation ratio; self-consumed energy = estimated generation × self-consumption ratio; annual savings = self-consumed energy × ￡0.30/kWh. Actual results will vary depending on household consumption, total storage capacity, maximum output power, and PV system size.
For example, based on a household consuming 7,000 kWh/year, with 2 main units + 2 batteries (20 kWh total), 6,000 W output, and 8,000 W PV:
8,000 W × 0.93 = 7,440 kWh (estimated annual generation) 7,440 kWh × 0.78 = 5,803 kWh (self-consumed energy) 5,803 kWh × ￡0.30 = ￡1,740 (estimated annual savings)
PV generation ratio and self-consumption ratio vary by region, system size, and usage pattern. Pairing your PV system with adequate battery storage can significantly increase self-consumption. According to the European Commission's Joint Research Centre (JRC), adding battery storage can raise PV self-consumption from 40–60% to 70–85% for a system producing half of a household's annual consumption. (Source: JRC89291, 2014). https://publications.jrc.ec.europa.eu/repository/handle/JRC89291
Smart Time-of-Use (TOU) tariff model. These estimates assume energy arbitrage by charging the solar battery at off-peak prices (£0.09/kWh between 00:30 – 05:30) and discharging during peak morning hours (£0.27/kWh). Actual electricity bill savings and the solar payback period will vary depending on individual household consumption patterns, geographic location, and specific energy provider terms. EcoFlow does not guarantee specific financial returns.
This condition applies to all "Annual Savings" references on this page.

2. In local mode, the following features are unavailable: AI functions, dynamic tariff integration, solar forecasting, data statistics, device sharing, data reset, and OTA firmware updates.Third-party devices without a local connection cannot be integrated into the system. Only locally connected ecosystem devices support local automation. This condition applies to all "local mode" references on this page.

3. “40% smaller footprint. Lightest. Highest energy density among 5kWh solutions.” is based on a comparison of installation footprint (floor area) with selected home battery systems of similar capacity available on the European market. Actual space requirements may vary depending on installation conditions. When moving the equipment manually, wear protective gloves to prevent injury. As the equipment has substantial weight, handle it with care. If two or more people are required, ensure clear communication and coordination between personnel to prevent injury. This condition applies to all "40% less floor space" references on this page.

4. For higher output power, connection to the distribution board must be performed by a certified electrician or qualified professional.

5. Cycle life based on testing at 25±2°C, 0.25P charge/discharge rate, 90% depth of discharge, with ≥60% capacity retention at end of life. Actual performance may vary based on usage conditions.The 10-year warranty is subject to terms and conditions. Coverage details, including applicable use cases and exclusions, are available at https://uk.ecoflow.com/pages/warranty-policy

6. Based on market research available at time of publication. Expected to launch in September 2026.

7. The battery can operate in water immersion up to 10 cm deep. This is intended for temporary exposure only — continuous immersion should not exceed 30 minutes. Prolonged submersion beyond this limit may affect performance and is not recommended.

8. Based on cumulative registered app users as of March 31, 2026. Data source: Frost & Sullivan, 2025 Global Smart Home Energy Storage System App Market Research Report.

9. EcoFlow ranked first globally in the smart home energy storage solutions industry by 2024 sales volume (10.2% market share). Data source: Frost & Sullivan, Global Smart Home Energy Storage Solutions Industry Research Report (research completed in December 2025). "Smart home energy storage solutions" refer to comprehensive solutions that couple energy generation storage systems with intelligent energy management technologies to generate, store, dispatch, and optimize home energy, which primarily encompass home solar systems, residential energy storage systems, home backup power stations and portable power stations.

10. For higher output power, connection to the distribution board must be performed by a certified electrician or qualified professional.

11. EcoFlow reserves the right to modify product offerings and disclaimers without prior notice, except as required by applicable law.. All claims are subject to the official product documentation.

12. Unless otherwise noted, all images, videos, and screen display contents about the product itself on this page are for reference only. Actual product effects (including but not limited to appearance, color, and size) and screen display contents (including but not limited to backgrounds, UI, and illustrations) may vary.

13. Unless otherwise noted, all performance data on this page comes from EcoFlow Labs in a controlled environment and is for reference only. The actual data may vary depending on usage environment, device condition, software version, and other factors.

14. Some app features require an active internet connection and may require a premium subscription. Local Mode supports offline operation; however, certain features remain unavailable without internet access. If your session expires, an internet connection is required to log back in before controlling your device.

15. All customer testimonials are provided by real EcoFlow users. Individual results may vary based on system setup, location, and usage habits.

16. EcoFlow STREAM is supplied with a power cable with stripped ends (no plug) and requires hardwiring. In accordance with UK safety regulations, it must be installed by a certified, registered electrician.