Thunder Bolt 920W vs UKSOL Pro Duo 890W Ground Mount
A side-by-side look at the Thunder Bolt 920W and UKSOL Pro Duo 890W Ground Mount. Winning figures are highlighted.
| Thunder Energy Thunder Bolt 920W | UKSOL UKSOL Pro Duo 890W Ground Mount | |
|---|---|---|
| Price from | £749.99 | £951.6 |
| Panel capacity | 920 Wp | 890 Wp |
| Panels | 2 | 2 |
| Max AC output | 800 W | 800 W |
| Microinverter | Hoymiles HMS-800-2WB | APSystems EZ1-M 800W Dual Input Micro-Inverter |
| Mounting | Garden or flat roof | Ground mount |
| Bifacial panels | No | Yes |
| Cable length | n/a | n/a |
| Warranty | 10 yrs | 10 yrs |
| ENA register reference | THUNE/21204/V1 | UKSOL/21003/V1/A2 |
Best value per row highlighted. Prices last checked 15 October 2026.
Thunder Bolt 920W
The sensible middle of the register-listed range: enough panel capacity to make real use of the 800W cap, and two independent MPPTs so one shaded panel doesn't drag the other down. Bracket sets included for a garden or flat roof, shed, outbuilding or rear extension roof.
Full Thunder Bolt 920W reviewUKSOL Pro Duo 890W Ground Mount
The two-panel step up from the Pro Compact: 890W of panels feeding the same 800W cap, against the Pro Compact's 460W. Same ground mount and the same register listing date as the Pro Compact, at roughly 1.4× the price for almost double the panel capacity.
Full UKSOL Pro Duo 890W Ground Mount review