PatioSun Max vs Thunder Bolt 920W
A side-by-side look at the PatioSun Max and Thunder Bolt 920W. Winning figures are highlighted.
| PatioSun PatioSun Max | Thunder Energy Thunder Bolt 920W | |
|---|---|---|
| Price from | £749 | £749.99 |
| Panel capacity | 890 Wp | 920 Wp |
| Panels | 2 | 2 |
| Max AC output | 800 W | 800 W |
| Microinverter | Hoymiles HiFlow PRO 800W, dual MPPT | Hoymiles HMS-800-2WB |
| Mounting | Ground mount, pre-installed | Garden or flat roof |
| Bifacial panels | Yes | No |
| Cable length | 5 m | n/a |
| Warranty | 10 yrs | 10 yrs |
| ENA register reference | PATIO/21261/V1/A1 | THUNE/21204/V1 |
Best value per row highlighted. Prices last checked 15 October 2026.
PatioSun Max
Same 890W of panels as the Duo, but stepped up to the HiFlow PRO microinverter's dual-MPPT inputs rather than the standard HiFlow, so each panel is tracked independently instead of sharing one input. That's the difference behind the roughly £50 premium over the Duo.
Full PatioSun Max reviewThunder 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 review