Deals & Offers
Balcony Solar Deals UK
Curated prices on the best balcony solar systems available in the UK right now. We track prices so you can buy at the right time.
Prices correct at time of writing
EcoFlow STREAM
600W£949
via EcoFlow UK
EcoFlow's dedicated balcony solar system. Includes two 300W rigid panels, a 600W micro-inverter, balcony railing mounting brackets, and full app integration. The STREAM app lets you monitor real-time generation, configure smart charging schedules, and set a priority for battery versus grid feed-in. Expandable with optional PowerStream battery for overnight storage. One of the most polished out-of-the-box experiences available in the UK.
Strengths
- ✓Smart app with real-time monitoring
- ✓Optional battery storage
- ✓Easy railing mount
- ✓UKCA compliant
Limitations
- –Premium price
- –600W cap (not 800W)
Anker SOLIX Solarbank 2
800W£899
via Anker SOLIX UK
The Anker SOLIX Solarbank 2 supports up to 800W of panel input — the current practical maximum for UK residential plug-in systems. Comes with an integrated 1,600Wh battery, meaning generation is stored and used when you need it rather than only when the sun shines. The companion app is well-regarded for data depth and usability. Excellent build quality; Anker's warranty and UK customer support are a genuine differentiator. Well suited to south-facing balconies where maximising output is the priority.
Strengths
- ✓Up to 800W
- ✓Integrated 1,600Wh battery
- ✓Excellent app
- ✓Strong warranty
Limitations
- –Larger and heavier than panel-only systems
- –Higher upfront cost
Plug-in Solar 600W Kit
600W~£399
via Amazon UK
A no-frills but complete kit from Plug-in Solar, one of the few UK-based brands focused exclusively on this market. Includes two 300W monocrystalline panels, a 600W grid-tie micro-inverter, and mounting hardware. The inverter is G98-compliant and ships with a 3-pin UK plug lead. No app, no battery — just clean power fed directly into your home circuit. Ideal for those who want a proven, simple system at the lowest possible price point, and are comfortable with a DIY installation approach.
Strengths
- ✓Lowest cost
- ✓UK-based brand
- ✓G98-compliant inverter
- ✓Everything included
Limitations
- –No app or monitoring
- –No battery option
- –DIY installation
Price alert tip
We check prices regularly and update this page when significant changes occur. Balcony solar prices tend to be most competitive around Black Friday (November), January sales, and the lead-up to summer — when retailers anticipate rising consumer interest in solar. If you see a price you like, don't hesitate: these deals don't always last. Bookmark this page and check back if you're not ready to buy today.
What to Look for in a Deal
Key specs to compare
- Peak wattage. Higher is generally better. The UK practical maximum for a domestic plug-in system is 800W. Most micro-inverters are rated at 600W or 800W. Don't pay a premium for a 600W system when an 800W is available at a similar price — every extra watt generates more savings year-round.
- Battery vs. no battery. Systems with built-in battery storage (like the Anker SOLIX Solarbank 2) shift generation to when you use it — evenings, mornings. This makes them more valuable if you're out during the day. Without a battery, you only save on electricity you happen to be using at the moment of generation. For a home office worker, battery-free may be sufficient; for an empty flat during office hours, battery adds significant value.
- Monitoring app. A good app lets you track generation, see patterns, and identify if something's wrong. EcoFlow and Anker both have strong apps. Budget systems typically offer no monitoring — acceptable, but you won't know if performance drops.
- G98 / UKCA compliance. Ensure the inverter is G98-compliant (the UK grid connection standard for sub-16A generation). Any reputable UK-marketed product should be. Avoid grey-market imports that may lack UK certification.
- Mounting hardware. Check what's included. Some kits include balcony railing mounts; others supply only panel and inverter, leaving you to source brackets separately. Railing clamps typically cost £30–£80 extra if not included.
- Warranty. Look for a minimum 10-year panel warranty (power output) and 2-year product warranty on the inverter and electronics. EcoFlow and Anker both offer solid warranty terms. Budget brands vary — check the small print.
Brand direct vs. Amazon — which is better?
For premium systems (EcoFlow, Anker), buying direct from the manufacturer's UK website is often the best option. You get the strongest warranty support, any bundle deals or financing options they offer, and the confidence of an official purchase. Customer service for warranty claims is generally smoother when you've bought direct.
Amazon is better for budget kits and for price-comparison on older or less-prominent brands. Amazon's A-to-Z guarantee provides a useful backstop if something goes wrong, and Prime delivery is often faster than brand-direct options. However, be alert to third-party sellers on Amazon — check seller ratings carefully and prefer "Sold by Amazon" or "Fulfilled by Amazon" listings for expensive purchases.
During seasonal sales events, brand-direct deals sometimes beat Amazon pricing — and sometimes it's the reverse. It's worth checking both before buying.