Put any two panels head to head
Pick two modules and the comparison lays their datasheets against each other row by row: power, efficiency, temperature behaviour, degradation, warranty and what each of them costs per watt where prices are published.
Nothing on a comparison is an opinion about a brand. Every figure is the manufacturer's own, and where one of them does not publish a specification the row says so rather than filling the gap.
Build a comparison
Start typing a model or a manufacturer in each field and pick from the suggestions. Both slots have to hold a panel before there is anything to open.
Recently compared panels
Comparisons other visitors opened, newest first. The efficiency figures are the front-side ratings from each datasheet; the higher of the two is marked.
AIKO-A805-GRH78Dw
805 Wp25.1%
AIKO-A-610-MAH72Mw
610 Wp23.6%
Panels
1 minutes ago
Haitai Solar
CETC-440TR(GDF)/96
440 Wp22.0%
Haitai Solar
CETC-445TR(GDF)/96
445 Wp22.3%
Panels
2 minutes ago
AIKO-A795-GRH78Dw
795 Wp24.8%
Recom
RCM-720-8DBNM
720 Wp23.2%
Panels
2 minutes ago
JKM645-670N-66QL6-BDV-L
670 Wp24.8%
JKM670N-66QL6-BDV-F4-EU
670 Wp24.8%
Panels
2 minutes ago
Silfab
SIL-520 XM
520 Wp21.9%
Silfab
SIL-590 XM+
590 Wp22.8%
Recently compared manufacturers
A brand comparison weighs two catalogues rather than two modules: what each maker builds, at what efficiency, and how deep the range goes.
Panels worth pairing
The top of the composite ranking. Open one, then use "Compare with" on its page - or type its name into either field above.
What a comparison contains
Power, efficiency, temperature coefficient, degradation, dimensions, weight and both warranty terms, each pair on one line with the difference between them stated rather than left to be read off.
When both modules have offers in your market the comparison works out the cost per watt from them. Where only one does, it says so instead of comparing a price with nothing.
Set your marketEach comparison carries a short summary of what actually separates the two panels, generated from the same figures the table shows and regenerated when either datasheet changes.