Solar panels
Photovoltaic modules for rooftop and ground-mount arrays.
Buyer's guide: Solar and batteries in 2026, after the creditWe hold full sourced data on 10 solar panels, each with a specification traced to its source and cross-checked against owner reports.
All the solar panels we have data on
Sorted by data completeness.
Canadian HiKu7
21.6-22.7% efficient module positioned on cost per watt rather than peak specification.
JA DeepBlue 4.0 ProJAM54D41-440-MB
22-22.8% efficient module with a notably shorter product warranty than every other panel in this catalog.
JinkoSolar Tiger NeoJKM440N-54HL4R-BDB
21-22.5% efficient N-type module substituting for LG in this catalog, since LG exited solar panel manufacturing in June 2022.
Maxeon Maxeon 7
24.1% efficient module with a 40-year warranty and the lowest degradation rate on the market.
Mission MSX10 N-TypeMSX10-435HN0B
22-22.8% efficient module manufactured in San Antonio, Texas — the only US-manufactured panel in this catalog.
Qcells Q.TRON BLK M-G2+
21.4-22.5% efficient n-type module, the volume choice for US residential installs.
REC Alpha Pure-RX
22.3-22.6% efficient heterojunction module with the best temperature coefficient in our set.
Trina Vertex S+TSM-NEG9R.28
22-23% efficient module from one of the world's largest panel manufacturers, with a 30-year linear power warranty.
LONGi Hi-MO X6 ScientistLR5-54HTB
Back-contact (HPBC) cell module substituting for Panasonic EverVolt in this catalog, since Panasonic exited residential solar manufacturing in April 2025.
What the specifications mean
Module efficiency (%)
Share of incident sunlight converted to electricity.
Higher efficiency matters mainly when roof area is limited. On a large roof, cost per watt beats efficiency.
Panel rated power (W)
STC power output of a single module.
Annual degradation (%/yr)
Rate at which output declines each year after the first.
Over a 25-year life the difference between 0.25%/yr and 0.55%/yr is roughly 7% of lifetime production.
Parts warranty (yr)
Standard parts warranty term with registration.
Solar modules carry 25-40 year terms; mechanical equipment rarely exceeds 12. Check whether the term requires registration within a deadline — many do, and missing it silently drops you to a much shorter base warranty.