N-Type 320W Monocrystalline Solar Panels (2-Pack)
Sold by Renogy UK
From £288.99
Renogy UK's price when we last checked, on 2 September 2026. They run promotions and price by variant, so confirm the current price on their page before you buy.
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Overview
N-Type 320W Monocrystalline Solar Panels (2-Pack)
320W panels at 22.2% efficiency — the most efficient module Renogy list. Sold in pairs, 1640 × 880mm each. If you have the area and want the maximum watts out of it, this is the panel.
- 320W at STC, 22.2% module efficiency
- N-type monocrystalline
- Vmp 37.85V, Voc 43.82V, Imp 8.46A, Isc 8.92A
- 1000V DC maximum system voltage, 20A series fuse
- 1640 × 880 × 35mm
- 10-year material warranty, 25-year 80% output warranty
22.2% is the number to notice
Module efficiency decides how many watts you get from the roof you actually have. At 22.2%, a square metre of this panel produces meaningfully more than the 15.7% flexible panels — roughly 40% more from the same area. On a van, where area is the binding constraint and always will be, efficiency is worth paying for.
High voltage, so MPPT and careful series wiring
Voc of 43.82V is high. Two in series is nearly 88V at standard conditions and more on a freezing bright morning — close enough to a 95V controller's ceiling that you should check the cold-temperature calculation rather than assume. With a 150V controller it is straightforward.
Before you order
1640 × 880mm is a large panel; measure the roof between rails and vents. Maximum series fuse rating is 20A, lower than the bifacial modules, so size the string protection accordingly.
Renogy's published figures
Taken from Renogy's own specification for this product, on the date shown by the price. Anything wired into 230V mains should be signed off by a qualified electrician.
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