Best Solar 300w Panels Deals Online in the UK (10 Deals Found)

Last Updated - 01/02/2026 Sort By:

Best Choice
FIREFLY ENERGY

New
FIREFLY ENERGY 300 W (2 Pack 150 Watt) Flexible Solar Panel Monocrystalline Solar Panel Photovoltaic Module Solar Module
【Exceptional Efficiency, Maximum Performance】Equipped with Grade A N-type monocrystalline cells with a conversion rate o

£169.99
Best Value
HoldOneLight

New
300 Watt Ultra-Thin Solar Panel, 2X 150W 12V-24V PET Flexible Solar Panel Kit with 40A Controller, Flexible Monocrystall
Energy-Efficient and Efficient: Solar panels use high-efficiency monocrystalline cells, which are more efficient than ma

£130.98 £167.34
Ecosonique Technology

Used
Ecosonique 300W Portable Solar Panel for Most Power Stations, Foldable & Lightweight Solar Suitcase with Kickstands, 40V
Lightweight & Compact: Weighs 7kg (15.4lbs) and a 6-fold design to 58.5*48.5*7.5 CM for easy carrying. High-grade Oxford

£182.31
Rvpozwer

New
Rvpozwer 400W Monocrystalline Solar Panel Kit, 2×200w N-Type Solar Module with MPPT 30A Solar Charge Regulator,Solar Cab
【24%+ high conversion efficiency】: This solar panel has an IP68 certified socket and achieves solar cell efficiency of u

£139.99
CraigSolar.co.uk

New
300w Solar Panel Monocrystalline 23% High efficiency cell Black Frame 147x99cm CraigSolar.co.uk

£185.00
Renogy

New
Renogy Solar Panels, 300W Portable Lightweight Solar Suitcase, N-Type 25% High Efficiency Foldable Solar Panel, Fast Ins
More Compact and Reliable - The Renogy 300W N-type Compact Suitcase delivers a consistent average output of 960Wh per da

£299.99
Renogy

Used
Renogy Solar Panels, 300W Portable Lightweight Solar Suitcase, N-Type 25% High Efficiency Foldable Solar Panel, Fast Ins
More Compact and Reliable - The Renogy 300W N-type Compact Suitcase delivers a consistent average output of 960Wh per da

£260.67
Renogy

New
Renogy Solar Panels, 640W Monocrystalline N-Type Solar Cell 2pcs 320W Solar Panel Kit PV Module Solar Power System, High
【High-Efficiency N-TYPE Cells with 18BB Design】Renogy panels use premium N-TYPE cells and 18BB technology to boost cell

£339.99
Generic

New
CraigSolar.co.UK 300w Flexible Solar Panel Monocrystalline, Huge 14 Busbar, 23% High Efficiency Cell (147x99cm)
✅ EXCELENT PERFORMANCE - Huge +22% module efficiency, High Quality and Outstanding performance. 14 busbar German cells.

£209.00
XINPUGUANG

New
XINPUGUANG 300w Solar Panel Off Grid Kit 2pcs 150 Watt Monocrystalline Photovoltaic Solar Module 30A Charge Controller f
【High efficiency】The solar panels are made of Grade A+ PERC monocrystalline silicon cells with a conversion rate of 23%.

£219.90 £239.90

10 Solar 300w Panels deals are available from: Amazon stores, starting from £130.98.
The biggest discount we found is 22% on 300 Watt Ultra-Thin Solar Panel, 2X 150W 12V-24V PET Flexible Solar Panel Kit with 40A Controller, Flexible Monocrystalline Solar Panels, Suitable for Family, Caravan, Boat (300W) at Amazon.
The lowest price we found is £130.98 while the highest is £339.99.
Prices for the best Solar 300w Panels deals average at £213.78.
Last updated on February 1, 2026.
We scanned these quality online stores and more to deliver you with the best offers online available for Solar 300w Panels.