Risen Energy RSM144-7-450M

Solar Panels

Risen Energy RSM144-7-450M

Mono PERC big-format silver-frame panel. 450W, 20.7% efficiency, 12-year product warranty.

7.2
Great

£96.88 per panel

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How it scores

Panel Efficiency(25%)
7.6/10
Power Output & Degradation(20%)
7.8/10
Warranty & Longevity(20%)
7.0/10
Value for Money(20%)
6.6/10
Install Compatibility(15%)
6.8/10

Scores based on published manufacturer specifications and weighted criteria — not lab testing. Methodology.

Specifications

Cell type
Mono PERC
Watt peak
450
Weight kg
24.4
Dimensions mm
2094x1038x35
Efficiency %
20.7
Degradation % years
0.55
Warranty product years
12
Warranty performance years
25
Temperature coefficient %
-0.35

What I noticed

Risen Energy is a Chinese tier-1 manufacturer with global distribution. The RSM144-7-450M is their 144-cell Mono PERC panel in a 2094×1038mm format, delivering 450W at 20.7% module efficiency with a silver frame.

This is Mono PERC rather than current-generation N-Type, so peak efficiency is lower and degradation rate higher than the TOPCon and HJT panels in this comparison. The trade-off is established cell technology with a long track record.

Who it suits

Larger residential or light-commercial installs where the 144-cell big-format works for the roof, and where the budget constrains away from premium N-Type options. The silver frame integrates well with light-tile roofs.

What I'd watch for

This is the lowest-efficiency panel in the comparison — for tight residential roofs, the 22-23% TOPCon and HJT options will fit more total kW into the same area. At 24.4kg in a 2.1m frame, factor in lifting and roof structure considerations. The 12-year product warranty is standard for Mono PERC.

RSM144-7-450M head-to-heads

Side-by-side scoring vs each alternative in our shortlist.

Other Solar Panels on my shortlist

Read next

Background reading and decision-tree pages that put this product in context.