PowerGuide

Octopus Plug-in Solar Bundle vs Thunder Bolt 920W

A side-by-side look at the Octopus Plug-in Solar Bundle and Thunder Bolt 920W. Winning figures are highlighted.

Octopus Energy
Octopus Plug-in Solar Bundle
Thunder Energy
Thunder Bolt 920W
Price from £450 £749.99
Panel capacity 460 Wp 920 Wp
Panels 1 2
Max AC output 800 W 800 W
Microinverter n/a Hoymiles HMS-800-2WB
Mounting Wall mount or ground mount Garden or flat roof
Bifacial panels n/a No
Cable length 5 m n/a
Warranty n/a 10 yrs
ENA register reference OCTOQ/21124/V1/A5 THUNE/21204/V1

Best value per row highlighted. Prices last checked 15 October 2026.

Octopus Plug-in Solar Bundle

Octopus's own single-panel bundle: a 460W panel, a microinverter and a 5m cable with a 3-pin plug, sold with a choice of wall or ground mount depending on where it goes. Octopus's plug-in-solar pages don't state a warranty period for the bundle anywhere: the explore page, FAQ, blog post and order page all have zero mentions of one.

Full Octopus Plug-in Solar Bundle review

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 review