Thunder Storm 360W flexible kit
Lightweight flexible panels that tie onto a balcony rail – easiest option for flats.
Price£499.99
RetailerThunder Energy
Panels2 × (360W total)
Inverter output800W
MountingBalcony, Wall
ENA registerListed (retailer)
See it at Thunder Energy Price checked 2026-11-14
What it would save
Estimated for a home in the middle of England with someone in for part of the day, at 26.32p/kWh. Use the calculator for your postcode.
| Where it goes | Made per year | Saving | Payback |
|---|---|---|---|
| Garden (ground frame), facing south (mount not in kit) | 348 kWh | £72 | 7.0 yrs |
| Balcony railing, facing south | 295 kWh | £63 | 7.9 yrs |
| House wall, facing south | 256 kWh | £56 | 8.9 yrs |
| House wall, facing east | 179 kWh | £41 | 12 yrs |
| Garden (ground frame), facing west (mount not in kit) | 272 kWh | £58 | 8.6 yrs |
| Flat roof, facing south (mount not in kit) | 315 kWh | £65 | 7.6 yrs |
Cheaper or similar kits
DMEGC 950W Hoymiles HiFlow kit£456 at City PlumbingJA Solar 800W balcony & garden kit (2 × 465W)£470.95 at Voltacon SolarDMEGC 1050W Hoymiles HiFlow kit£480 at City Plumbing
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