Modular Solar 340W Unit vs Thunder Bolt 920W
A side-by-side look at the Modular Solar 340W Unit and Thunder Bolt 920W. Winning figures are highlighted.
| Modular Solar Technologies Modular Solar 340W Unit | Thunder Energy Thunder Bolt 920W | |
|---|---|---|
| Price from | £465 | £749.99 |
| Panel capacity | 340 Wp | 920 Wp |
| Panels | 1 | 2 |
| Max AC output | 340 W | 800 W |
| Microinverter | n/a | Hoymiles HMS-800-2WB |
| Mounting | n/a | Garden or flat roof |
| Bifacial panels | n/a | No |
| Cable length | n/a | n/a |
| Warranty | 10 yrs | 10 yrs |
| ENA register reference | MODUL/21168/V1/A1 | THUNE/21204/V1 |
Best value per row highlighted. Prices last checked 15 October 2026.
Modular Solar 340W Unit
A different shape of kit to the rest of this catalogue: a single free-standing unit rather than a separate panel and microinverter, made from recycled plastic and adjustable for the seasons. Its 340W AC output is well under the 800W legal cap, and Modular Solar sells this as a lower-cost, smaller-footprint unit rather than a route to the full 800W.
Full Modular Solar 340W Unit 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