Solis Review UK (2026)
Quick Answer
One of the highest-volume inverter brands on UK roofs, dependable string and hybrid units at mid-market prices.
Data verified April 2026. UK installed pricing varies with installer, site and package.
At a Glance
| Origin | China (Ginlong Technologies, founded 2005), among the largest string-inverter makers worldwide |
| UK support | Strong, established UK office, technical support line and wholesaler network |
| Capacity / sizing | 0.7 kW – 10 kW single-phase (S5/S6); three-phase up to 110 kW for commercial |
| Efficiency | 98%+ peak; ~97% European-weighted |
| Warranty | 5 years standard, free extension to 10 years on most UK residential models when registered |
| Indicative UK price | £900–£2,000 installed |
Tariff Compatibility
Solis works with the following UK export tariffs (see our best Octopus tariffs for solar guide):
- Octopus Flux (with compatible battery)
- Outgoing Fixed
Strengths
- Huge UK install base, almost every MCS installer has fitted Solis, so parts and familiarity are everywhere
- S6 hybrid range works with a wide spread of high-voltage batteries (Pylontech, BYD, Dyness and Solis-badged packs)
- Free 10-year warranty extension on registration narrows the gap to Sungrow at a lower price
- SolisCloud monitoring app is well-developed with solid alerting
Weaknesses
- Standard warranty is only 5 years before you register for the extension
- String architecture means no panel-level shading mitigation
- Not on the Intelligent Octopus Flux approved list, so peak-window export must be timed manually
- Build quality is solid mid-tier rather than premium, below Fronius or SMA
Who Solis Suits Best
Mainstream unshaded UK roofs where install-base familiarity, parts availability and value matter. A safe default hybrid choice.
When to Avoid
Your roof has significant shading (consider SolarEdge or Enphase), or you want a 10-year warranty with no registration step (Sungrow gives that as standard).
Popular Models
- S6-EH1P (single-phase hybrid, 3–8 kW)
- S5-GR1P (single-phase string)
- S6-GR3P (three-phase string)
Frequently Asked Questions
Are Solis inverters reliable?
Yes. Solis (Ginlong) is one of the world's largest string-inverter manufacturers and one of the most-fitted brands in the UK, with a dedicated UK support office. Field reliability is solid mid-tier, comparable to Sungrow and ahead of budget units.
How long is the Solis warranty?
5 years as standard, with a free extension to 10 years on most UK residential models if you register the inverter after installation. Always confirm your installer has completed registration.
What batteries are compatible with Solis?
Solis S6 hybrid inverters work with a broad range of high-voltage batteries including Pylontech, BYD Battery-Box, Dyness and Solis-badged packs. Compatibility is wide, but always check the approved battery list for your exact model.
Solis vs Sungrow, which is better?
Both are strong-value Chinese hybrids. Sungrow gives 10 years warranty as standard; Solis matches it only after you register for the extension, but usually costs a little less. Choose by your installer's experience and the battery you want.
Compare with Other Inverter Brands
| Brand | UK support | Warranty | Indicative price | |
|---|---|---|---|---|
| SolarEdge | Strong, established UK office and service network | 12 years on inverter; 25 years on optimisers | £1,800–£3,200 installed (includes optimisers per panel) | View → |
| Enphase | Strong, dedicated UK distribution and installer network | 25 years on microinverters (among the longest in the market) | £2,500–£4,000 installed on a typical 4 kW system, adds ~£200/panel vs string | View → |
| Sungrow | Strong, UK office and established service network | 10 years standard (extendable to 20 years) | £1,200–£2,200 installed | View → |
| Fronius | Moderate, Europe-wide service with UK distributor support | 10 years standard; extendable to 20 | £1,500–£2,800 installed | View → |
| Growatt | Growing, UK distribution via major wholesalers, established installer base | 5–10 years standard (varies by model); extendable to 15 years | £700–£1,800 installed, among the cheapest hybrid options | View → |
| SMA | Moderate, long UK market presence via distributors with manufacturer technical backup | 5 years standard; extendable to 10, 15 or 20 years | £1,300–£2,600 installed | View → |
| GoodWe | Growing, UK distribution via major wholesalers with manufacturer support | 10 years standard on UK residential hybrids; extendable to 20 years | £1,100–£2,100 installed | View → |
| Huawei | Moderate, UK distribution via specialist wholesalers and accredited installers | 10 years standard on inverter; extendable; LUNA 2000 battery 10 years | £1,400–£2,600 installed (more with optimisers) | View → |
| SolaX Power | Strong, established UK office, training and wholesaler network | 10 years standard on UK residential hybrids; extendable | £1,100–£2,200 installed | View → |
| Tigo | Moderate, UK distribution via wholesalers and accredited installers | 25 years on TS4 optimisers | £25–£60 per optimiser plus a TAP gateway; far cheaper than full SolarEdge when only some panels are shaded | View → |
Get a Quote Including Solis
Most MCS-certified installers carry multiple inverter brands — ask for a quote specifying Solis if you want a system with this inverter. Use the form below to reach local installers.
Sources
John Rooney is the founder of Solar Info and has been covering the UK solar energy market since 2023. He researches every battery and inverter brand against manufacturer datasheets, MCS and Ofgem data, and feedback from the MCS-certified installers in our directory before publishing.