Best Solar 300w Panels Deals Online in the UK (24 Deals Found)

Last Updated - 29/10/2026 Sort By:

Best Choice
WERCHTAY

New
300W Solar Panels,12V 300W Monocrystalline High-Efficiency PV Module
【High Efficiency】The 300W solar panel utilizes the latest generation of HPBC technology. Its high efficiency is 25%, and

£123.49 £129.99
Ecosonique Technology

New
300W Portable Solar Panel 40V MC4 & Multi-Output for Most Power Stations
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

£199.99
New
GOOWAY 290W 300w Flexible Solar Panel 18V for Caravan RV Boat Cabin Home Camper
Power Transmission: 18V version has only 5-8% power loss (ideal for long cable runs), while 12V has 10-15% loss.

£115.99
Best Value
CraigSolar.co.uk

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

£185.00
New
150W 300W 600W Solar Panel Kit 12V With Mounting Brackets RV Caravan camper Van
GOOWAY 100 watt solar panels adopt the 9BB solar panel cell design and are made of excellentGrade A cells.

£59.99
CraigSolar.co.uk

New
330w Solar Panel Black Frame Monocrystalline (164x99cm) idea for Any Off-Grid, Hybrid or Grid-tie Applications CraigSola

£179.00
WERCHTAY

New
600W Solar Panels,12V 2 * 300W Monocrystalline High-Efficiency PV Module
【High Efficiency】The 300W*2 solar panel utilizes the latest generation of HPBC technology. Its high efficiency is 25%, a

£239.99
New
GOOWAY 300W 18V Flexible Mono Solar Panel 18BB for Camper/Caravan/RV/Boat/Home
Power Transmission: 18V version has only 5-8% power loss (ideal for long cable runs), while 12V has 10-15% loss.

£119.99
DOKIO

Used
DOKIO 300W Portable Solar Panel Kit Monocrystalline
COMPLETE KIT - 300W Solar Panel + 20A Controller + 9.8FT Cable (SAE to XT60) + Cable (XT60 to Alligator clip) + Cable (J

£148.49
New
GOOWAY N-Type 300W 12V Bifacial Solar Panel 18BB Camper Motorhome Van Garden
Solar panel kit is an eco-friendly power source designed for boat, home off-grid charging, camping and outdoor activitie

£106.99
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
ECO-WORTHY

New
ECO-WORTHY 240W Mono Solar Panel Kit 12V Off-Grid for Caravan Campervan
Wide Application: Generate 0.96kWh per day under 4 hours full sunlight, which can fully charge a 12V 50Ah battery. Perfe

£164.49 £179.99
New
GOOWAY 100W 130W 200W 260W 300W 600W 12v flexible Mono Solar Panel for Caravan
Install the solar panel at an inclined angle to allow sunlight to hit the surface as vertically as possible.

£270.99
Rvpozwer

New
Rvpozwer 400W Monocrystalline Solar Panel Kit, 2×200w N-Type Solar Module with 30A Solar Charge Regulator,Solar Cable, Z
Maximising green energy output: With its top-tier conversion efficiency and the extended generation duration offered by

£159.99
New
100W 200W 300W 12V Portable Fodable Solar Panel for Car Battery/Caravan/Camping
Our 300W Monocrystalline Solar Panel Has A High Conversion Efficiency Of 23.4%, And Its Performance Is Better Than That

£169.98
TPTAWF

New
TPTAWF 300 Watt Ultra Light Flexible Solar Panel Bendable, All Black High Efficiency Monocrystalline Waterproof 24V/12V
Built with top-tier A+ monocrystalline cells, they deliver up to 24% efficiency – squeezing max power from every ray, ev

£168.34
New
Dokio 100w 200w 300w Portable Solar Panel for Car battery/Caravan/Camping
With high efficiency monocrystalline solar cell, you will get greater power efficiency even though the panel is smaller

£109.99
New
Foldable Solar Panel Kit MC4 XT60 Portable Camping Motorhome RV Charger 300W
Interface types: MC4, DC7909, DC5521, XT60, Anderson.

£118.98
New
Voltanic 100W 200W 300W 400W 12V MPPT Solar Panel Kit | Motorhome/Caravan/Shed
THE VOLTANIC DIFFERENCE.

£165.00
New
300w 12v Portable Foldable Solar Panel Kit For Camping/Caravan/Power station
Maximum Power(Pmax): 300W±3%.

£199.99
New
GOOWAY 300W 290W 12V Solar Panel Kit with Brackets for Motorhomes Camper Vans
Paired with upgraded cell conversion technology, it realizes advanced, high-precision electrical energy conversion, mini

£162.99
New
300w 12v Portable Foldable Solar Panel Kit Grid Power RV Boat Caravan camper van

£229.99 £216.19
New
300W Solar Power Generator 222Wh Power Station MAX-600W With 100W Solar Panel
AC Output: 300W (rated power) (600W surge power).

£135.99
New
300 WATT MOTORHOME SOLAR PANEL + FULL FITTING KIT + LCD display controller 300w
2 x 150W 12V solar panel kit with 5m heavy duty solar cable and battery cable with fuse.

£279.99

24 Solar 300w Panels deals are available from: Amazon, eBay stores, starting from £59.99.
The biggest discount we found is 9% on ECO-WORTHY 240W Mono Solar Panel Kit 12V Off-Grid for Caravan Campervan at Amazon.
The lowest price we found is £59.99 while the highest is £279.99.
Prices for the best Solar 300w Panels deals average at £167.69.
Last updated on October 29, 2026.
We scanned these quality online stores and more to deliver you with the best offers online available for Solar 300w Panels.