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MSolar vs AEET - solar panel manufacturer comparison

MSolar
Headquarters not published
Read the MSolar review
VS
AEET
Headquarters not published
Read the AEET review
At a glance

MSolar leads on peak efficiency at 19.80%.

Both catalogues are read from the manufacturers' own datasheets. A brand is not scored against the market here, only against the other brand on this page.

Panel models
5 5
Highest power
370 Wp 200 Wp
Best efficiency
19.8% 15.7%
Average efficiency
19.3% 14.9%
Bifacial share
0% 0%
Average warranty
25 yrs 25 yrs
01

The two companies

Company facts, not datasheet figures
02

Catalogue against catalogue

Averages over every model in the database
Metric MSolar AEET
Catalog & Power
Panel Models 5 5
Max Power 370 W+170 W 200 W
Avg Power 360 W+170 W 190 W
Efficiency
Max Efficiency 19.80%+4.10 pp 15.70%
Avg Efficiency 19.27%+4.37 pp 14.90%
Reliability & Warranty
Avg Temp Coefficient -0.360%/°C -
Bifacial Share 0 (0%) 0 (0%)
Avg Warranty 25.0 yrs 25.0 yrs

An average over a catalogue describes the range a manufacturer publishes, not the module you would buy. A brand with two flagship panels and eighty older ones averages worse than one that has retired its back catalogue.

03

What each of them builds

Cell technology across the market
Efficiency spread
Share of each catalogue in every efficiency band
Power spread
Share of each catalogue in every power band
MSolar cell technology
Share of their models by cell architecture
AEET cell technology
Share of their models by cell architecture

Dominant cell tech: <strong>PERC</strong> (100%)

04

The flagships

Highest-power models from each brand
05

Written summary

Checking cache...

AEET Energy Group GmbH is a Germany-based photovoltaic wholesale and distribution specialist, headquartered in Bad Gandersheim, Germany, that sources and resells modules from a portfolio of leading international manufacturers. Rather than operating its own fabrication lines, AEET functions as a full-service procurement partner for the European market. No confirmed BNEF Tier 1 listing has been found for AEET itself; bankability, in its case, rests on the underlying manufacturers it represents. mSolar is a small American company operating out of San Antonio, Texas, that imports monocrystalline cells and assembles panels domestically. It does not appear on the BNEF Tier 1 list, and independent sources have flagged uncertainty about the company's current operational status. On institutional footprint and market reach, AEET holds the stronger position by virtue of its European distribution network and association with major module brands.

AEET's catalog, drawn from its supplier partners, spans bifacial, TOPCon, HJT, and conventional N-type crystalline products, covering use cases from premium residential rooftops to utility-scale and commercial ground-mount installations. The breadth of technologies on offer is a direct consequence of its multi-vendor wholesale model. mSolar, by contrast, focuses on a narrower monocrystalline lineup with output ranging roughly from 365 W to 450 W and efficiencies in the 19-21 percent band - positioning it in the value-commercial and budget residential segments. EnergySage rates mSolar panels as a "Good" pick for buyers prioritizing price over peak performance, and independent reviewers note that the cells used are sourced from a separate established supplier and assembled in San Antonio, which limits differentiation on a technical level.

For a typical buyer in 2025, AEET is the more defensible choice when procuring through European channels, given its established supplier relationships and wider technology access. mSolar may suit a cost-sensitive American residential customer, but the unresolved questions about the company's continuity and warranty backstop make it a riskier long-term bet. The two brands are not genuinely interchangeable - they serve different geographies, operate on different business models, and carry meaningfully different risk profiles.

Generated by Claude Sonnet · 2026-05-14

06

Other brand comparisons

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Something missing from a catalogue? Both lists are built from the datasheets in the database. If a model is absent, it has not been ingested yet.

Comparisons are computed from manufacturer datasheets held in the ComparePV database and may not reflect a brand's complete current lineup. Nothing on this page is paid placement.