A Path to Zero: Empower Your Home with Solar Energy

  • Starter

    EcoFlow STREAM Basic Kits

    Just starting out with your balcony solar system.

    Learn more
  • Pioneer

    EcoFlow STREAM Ultra

    Seeking true energy freedom? Lead the way to 0 electricity bills.

    Learn more
  • Upgrader

    EcoFlow STREAM AC Pro

    Already have panels or a microinverter and want bigger savings.

    Learn more
Early Bird Benefits
12DAYS
:
18HOURS
:
17MINUTES
:
58SECONDS

Up to

16%

Up to 16% off

3-Month

Flexible Installment Plan

Get 1 free Smart Meter with STREAM Ultra / STREAM Pro

(till 31 May)

STREAM Ultra Only £999

(with VAT) (till 31 May)

£1,099

£999

10%

Referral Discount

Find the Right Solar Savings Plan for Your Home¹

First Choice

1 × EcoFlow STREAM Ultra

Capacity: 1.92kWh
2,300W
Bypass Output
2,000W
4 MPPT PV Input (4 × 500W)
IP65
Ingress Protection Rating
0
Flexible DIY Solar Network

EcoFlow STREAM Ultra + STREAM AC Pro

Capacity: 1.92kWh × 2
2,300W
Bypass Output
2,000W
4 MPPT PV Input (4 × 500W)
IP65
Ingress Protection Rating
0
Ideal for 90–119m² Home Size

2 × 520W Rigid Solar Panels + EcoFlow STREAM Ultra

Save up to £289 annually
97%
Achieve self-consumption
992kWh
Generate per year with this system
989 kg
Reduce CO₂ emissions
0
Ideal for 120–149m² Home Size

4 × 520W Rigid Solar Panels + EcoFlow STREAM Ultra

Save up to £446 annually
75%
Achieve self-consumption
1,983kWh
Generate per year with this system
1,977 kg
Reduce CO₂ emissions
0
Solar energy you can use any time

4 × 520W Rigid Solar Panels + EcoFlow STREAM Ultra + 2 × EcoFlow STREAM AC Pro

Save up to £571 annually
96%
Achieve self-consumption
1,983kWh
Generate per year with this system
1,977 kg
Reduce CO₂ emissions
0
Plug & Play Residential Solar Solution

4 × 520W Rigid Solar Panels + 2 × 450W Rigid Solar Panels + 2 × EcoFlow STREAM Ultra + 3 × EcoFlow STREAM AC Pro + 1 × Microinverter

Save up to £824 annually
99%
Achieve self-consumption
2,773kWh
Generate per year with this system
2,764 kg
Reduce CO₂ emissions
0
More solar panels
More batteries
More savings?

Stop wasting money on oversized setups

Most home appliances use over 800Wand that keeps you tied to the grid.

EcoFlow Redefines Balcony Solar Systems

Break Limits — Your 3-Step Path to Bills to 0

1

Place Solar Panels Anywhere

EcoFlow offers 4 solar panels and 10 mounts for easy DIY anywhere — beyond the balcony, no installer needed.

2

Plug into the STREAM Ultra Series

Connect your solar panels to the STREAM Ultra Series battery, then plug the battery into any socket.

3

Plug & Play

Just plug your appliances into the battery to achieve Bills to 0. Or plug into a wall socket like a normal balcony solar system with an 800W limit.

STREAM Ultra
STREAM AC Pro
STREAM Plug & Play Solar System
EcoFlow Redefines Balcony Solar Systems
Breaking Limits — Through Hardware
Power High-Watt
2,300W AC output
Power Anywhere
Plug & Play | Vertical design
Power as One
Expandable to 11.52kWh | Share energy across devices
Power High-Watt

Power a Single High-Watt Appliance Up to 2300W — One Appliance Zero Bills Unlocked

Go “Bills to 0” with 4 smart setups. From lights and routers to fridges and kettles, the EcoFlow STREAM Series powers appliances up to 2,300W — all powered by the sun.

Parallel Mode Up to 2,300W Solar Coverage
Device Setup: Any two STREAM batteries — any model Connect two units with a parallel cable to power high-wattage appliances like ovens and dishwashers — all powered by solar. Output: 1,200W (main) + 1,100W (secondary) = 2,300W total output
Note: Appliances should be plugged into the battery's AC outlet. Please refer to the rating label on each device for actual power usage.
Distributed Mode Up to 2,000W Solar Coverage
Device Setup: Any two STREAM batteries — any model No cable required — simply plug each unit into separate wall sockets. Solar powers up to 2,000W, with support for up to 2,300W total output when needed. Output: 1,200W (main) + 800W (secondary) + 300W (grid) = 2,300W total output
Note: Appliances should be plugged into the battery's AC outlet. Please refer to the rating label on each device for actual power usage.
Single Unit Mode Up to 1,200W Solar Coverage
Device Setup: 1 × STREAM Ultra One unit powers your everyday essentials — ideal for running TVs, cookers, fans, and more with ease. Output: 1,200W from a single battery
Note: Appliances should be plugged into the battery's AC outlet. Please refer to the rating label on each device for actual power usage.
Basic Kit Mode Up to 800W Solar Coverage
Device Setup: 2 solar panels + 1 microinverter (standard setup) Perfect for powering lightweight essentials such as routers, lighting, and laptops. Output: 800W output via microinverter only
Note: Please refer to each appliance's rating label for actual power usage.
2300W
2000W
1200W
800W

Power Anywhere

From One Appliance to Every Room — Whole-Home Zero Bills Made Possible

Run multiple devices simultaneously — with up to 7,200W Total AC Output (1,200W per unit) and up to 12kW solar input (4 MPPT × 500W inputs per unit) when using 6 connected STREAM Ultra units. Modular and scalable to match your home's evolving energy needs.

Power Anywhere

Power Goes Where Appliances Live

No need to huddle appliances around one station — save on bills where they stand. Appliances are spread across your home. Your batteries should be too. That’s how you reach Bills to 0.

Plug & Play
No drilling required, easy setup anywhere Quick, plug-and-play installation with no electrician needed.
Vertical Design
ULM Design Style, "Form follows function" philosophy. Sleek vertical design save more than 50% of space suited for both indoor and outdoor spaces.

More Solar In, More Capacity Stored — Up to 6 Units Say Goodbye to Power Worries

EcoFlow STREAM Ultra offers flexible DIY solar storage & PV input expansion — solar storage expansion from 1.92kWh up to 11.52kWh² , and PV input expansion from 2kW (4 MPPT) to 12kW (24 MPPT), with up to 6 connected units.
11.52kWh Capacity/ 12kW PV Input
1.92kWh Capacity / 2kW PV Input

Power That Flows Where It’s Needed

Unlike regular balcony solar add-ons, EcoFlow STREAM batteries can be placed anywhere in your home to share power. If one runs low, AI shifts power from the closest battery — enabled by a globally leading Wi-Fi 6 and AI-powered wireless battery sharing technology.
I need more energy.
EcoFlow Redefines Balcony Solar Systems
More Savings, Fewer Calculations—Through Software³
Save More
TOU Model | Solar Forecasting
Save Smart
Compatible Smart Accessories
Save Easy
AI Assistant

Save More

Boost Your Savings with the TOU and Solar Forecasts⁴

£194

Up to £194 ADDITIONAL annual savings

29%

Up to 29% HIGHER annual savings

108%

Up to 108% GREATER winter savings

Time‑of‑Use (TOU)  Dynamic Electricity Pricing

Charge when prices are low, supply when prices are high. AI-TOU model offers you the optimal bill-saving strategy every 60 minutes, based on the analysis of tariff data from Nord Pool, Epex Spot, Rabot Energy, Octopus, and more.

Up to 600+
tariff data platforms coverage
60 min
strategy update frequency

High Accuracy Solar Forecasts, Maximize Your Savings All Year Round⁵

Powered by Solcast's world-leading solar and weather forecasting, processing over 100 million forecasts per hour—including geolocation, satellite imagery, historical data, and TMYs (Typical Meteorological Years) —to deliver real-time insights and savings.

94%
peak accuracy
3 days
forecasts ahead
100,000,000+
weather forecasts processed per hour

Save Smart

Smart Meter × Smart Plug: Zero Feed-in. All Solar, All Yours⁶

Smart Meter · Monitor
Monitors household power flow in real time, precisely detects every surplus watt.
Smart Plug · Switch
Automatically switches each device, efficiently uses every surplus watt.
Smart App · Schedule
Intelligently schedules surplus power, automatically decides when and where to use it for savings.

Seamless Smart Home Integration

EcoFlow works with leading smart energy brands like Shelly, Tibber, and more, managing your home's power with the Smart Meter, Smart Plugs, and the EcoFlow app. Automatically run appliances like your sprinkler, e-bike, or ventilation using surplus solar. Let every ray of sunshine stay yours.

Save Easy

EcoFlow AI Assistant: No Math. Just Savings.⁷

Your AI Assistant simplifies energy management by doing the hard work for you—analyzing data, spotting inefficiencies, and giving clear, actionable recommendations. No calculations, no guesswork—just smart, easy decisions.

Status Overview

AI Assistant

Energy Report

Energy-Saving Tips

Want to save even more with our app?Explore EcoFlow OASIS
Safety You Can Trust
Built into Both Hardware & Software
Flame-Retardant Casing
Thermal aerogel insulation resists high heat and flames.
Multi-Layer Protection
Overload, overheating, and blast-proof valve safety layers.
Anti-Backfeed Protection
Prevents reverse current and stabilises your home grid.
Fast Voltage Drop
Drops to safe voltage in just 0.7 seconds when disconnected.
Smart Battery Management
AI system optimises charge cycles and extends battery life.
Privacy & Data Protection
Certified to global standards for security and compliance.

Long-Lasting Power with LFP Technology

Equipped with advanced LFP battery cells, STREAM delivers up to 6,000 deep cycles with 70% capacity retention — lasting up to 3× longer than traditional batteries. That means up to 15 years of reliable use, backed by a 10-year warranty.

6,000
Cycles
15-Year
Lifespan
10-Year
Warranty

Silent Operation — as Low as 30 dB

Experience whisper-quiet performance with noise levels as low as 30 dB. The advanced self-cooling design dissipates heat efficiently — no disruptive fan noise, just silent, reliable power.
Ready for Any Weather
Reliable Winter performance
Equipped with self-heating technology, the system operates smoothly even at -20°C.
IP65 Water and Dust Resistance
With an IP65 water-resistant rating, the energy storage unit resists rain and dust — ideal for outdoor use in all seasons.
Protecting Your Privacy, Always.
EcoFlow protects your data using top-level security measures certified by global standards including TRUSTe, NIST, ISO, and more.
View All

Perfectly Integrated with PowerOcean

Future-proof your investment. When you upgrade to EcoFlow PowerOcean — our professional home battery solution — your STREAM products stay valuable and seamlessly integrate into your expanded home energy system.
T&C
EcoFlow STREAM Series Launch Giveaway
Event Period: Customers can participate from 08:00 on 15 April 2025 (BST) to 23:59 on 14 May 2025 (BST). Eligibility The event is open to all users on uk.ecoflow.com, who are UK citizens and 18 years old or older as of 08:00 on April 15, 2025 (BST) ("participant(s)") STREAM Series Launch Giveaway Rules: 1. Subscribe & place order now, and we'll randomly draw customers to win Lucky Prizes on 15 June, 2025. The prizes are as follows: - 1 × lucky customer will receive a new STREAM Ultra. - 3 × lucky customers will receive a new STREAM AC Pro. - 5 × lucky customers will receive 2 × new 520W Solar Panels. 2. The list of winners will be sent privately by email, and each customer can only win a prize once. 3. No payment or purchase is necessary to enter the Prize Promotion, and a purchase will not increase the chances of winning. Buy STREAM, Get a FREE Smart Meter: Subscribe now to receive a FREE Smart Meter with your EcoFlow STREAM Series purchase. (From 15 April 2025 to 31 May 2025 ) Event Rules: 1. Each email address is limited to one entry. Winning information will be sent to the winning email address. 2. Prizes cannot be transferred or shared. 3. The value of the prize cannot offset any previous purchases. 4. If any fraudulent behaviour is detected (e.g., false claims), EcoFlow reserves the right to revoke the prize. 5. Each entrant may enter only once per Prize Promotion using a single email address. Only one entry per social media account is allowed if the Prize Promotion is conducted on social media. Entries from multiple email addresses or social media accounts by the same individual will result in disqualification.
General
1. If you encounter any problems during the promotion, please contact support.eu@ecoflow.com for assistance. 2. To the extent permitted by applicable law, we may decide to modify these rules or cancel the promotion at any time. If there is any fraud or abuse related to the promotion, we reserve the right to exclude any customer from the promotion. 3. Participants in the sale agree to be bound by the terms and conditions set forth herein and understand that EcoFlow's decisions are final and binding. No correspondence or appeals will be entertained. EcoFlow reserves the right to make the final and ultimate interpretation of this campaign. 4. During the sale promotion, all orders must comply with EcoFlow's purchase agreement and return policy. The sale promotion is not applicable to wholesale or distributor orders. 5. Any unauthorized or fraudulent behaviour will result in the disqualification of participants. 6. Participants must comply with all applicable laws and regulations. 7. EcoFlow reserves the right to stop, cancel, or change the promotion at any time during the promotion. Any changes will be announced on the EcoFlow official website. 8. All prizes in this promotion are limited in quantity and are available on a first-come, first-served basis. Any matters not covered herein will be handled according to EcolFlow's final interpretation. 9. EcoFlow will assume no responsibility for late entries, which may occur for any reason, including but not limited to network transmission failure. 10. EcoFlow will not be responsible for any direct or indirect losses or damages incurred by any party, including the participants, in connection with or arising from acts or omissions or any way related to this campaign. 11. Participants agree to release and discharge EcoFlow from any liabilities and claims, including breach of contract, tort, negligence, or any other cause of action at law or equity, arising out of or in any way connected to this campaign or the participant's entry into the campaign. 12.There may be certain orders that we are either unable to accept or must cancel. We reserve the right, at our sole discretion, to refuse or cancel any order for any reason. We are not responsible for inaccuracies or errors. * "Bills to 0" is a conceptual expression. Under specific conditions — such as using devices under 2300W with EcoFlow STREAM Series batteries — electricity bills may be significantly reduced, potentially approaching zero. Actual results may vary depending on regional electricity rates, usage patterns, system configuration, and weather conditions. Zero bills are not guaranteed.
Disclaimer
1.The estimated electricity cost savings are calculated using the following formula: Annual Savings = Annual Solar Generation × electricity price × Self-Consumption Rate Annual Solar Generation: Based on the configured solar input capacity (W), assuming installation in a typical Central European city (e.g. Munich, Germany), facing due south (180°) at a 40° tilt. Three common configurations include: - 2 × 520W panels → approx. 1,000W input - 4 × 520W panels → approx. 2,000W input - 4 × 520W + 2 × 450W panels → approx. 2,800W input Generation estimates are based on an average of 4.5 sunlight hours per day. Source: https://pvwatts.nrel.gov/pvwatts.php Electricity Price: Based on national residential electricity averages, which vary by country and provider. For calculation purposes, €0.40/kWh is commonly referenced as a representative average for Germany. Self-Consumption Rate: Estimated using HTW Berlin’s Independence Calculator, assuming an average annual household electricity consumption of 4,000 kWh. Source: https://volker-quaschning.de/software/unabhaengig/index_e.php Actual savings may vary depending on installation conditions, household consumption habits, regional weather, and electricity tariff changes. The estimated environmental contribution is calculated using the following formula: Annual Environmental Contribution (kg CO₂e avoided) = Annual Solar Generation × 997 / 1000 This formula assumes that for every 1,000 kWh of solar energy generated, approximately 997 kg of CO₂ emissions are avoided. Actual environmental impact may vary depending on the local electricity mix and carbon intensity in your region. 2. The maximum capacity is 6 units, expandable up to 11.52kWh with the EcoFlow STREAM Ultra or EcoFlow STREAM AC Pro. 3. Certain AI features in the EcoFlow app require a premium subscription. Please refer to the EcoFlow app for details on subscription plans and feature availability. 4. The calculation is an estimate based on 10 kWh/day electricity consumption in Munich, Germany (representing Central Europe), using STREAM series products (6kWh batteries and 2800W PV). It is simulated by AI, factoring in fluctuations in electricity prices and usage for a closer reflection of real-world conditions. Actual results may vary depending on local conditions. 5. The EcoFlow app integrates weather data from Solcast, running over 100 million data operations per hour to deliver forecasts with up to 94% accuracy and horizons of up to three days. (https://solcast.com/) 6. After installing STREAM Series battery and compatible Smart Meter, users can connect appliances to wall outlets via compatible Smart Plugs, enabling remote on/off control and operation scheduling through the EcoFlow app—thereby minimizing solar energy waste. 7. Actual EcoFlow app functionality may vary; the screens shown are for illustrative purposes only.