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AKCOME vs Bisol - solar panel manufacturer comparison

AKCOME
China Founded 2003
Read the AKCOME review
VS
Bisol
Slovenia Founded 2004
Read the Bisol review
At a glance

Bisol has the broader catalog (12 vs 3 models). Bisol leads on peak efficiency at 23.50%. AKCOME leans bifacial (100% of lineup).

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
3 12
Highest power
700 Wp 580 Wp
Best efficiency
22.5% 23.5%
Average efficiency
21.6% 21.8%
Bifacial share
100% 8%
Average warranty
30 yrs 30 yrs
01

The two companies

Company facts, not datasheet figures
AKCOME
Founded
2003
Headquarters
Suzhou, China
Bisol

BISOL Group is a European manufacturer of high-quality photovoltaic modules headquartered in Prebold, Slovenia. Founded in 2004, it is considered Europe's leading authentic solar module producer with a production capacity of 750 MW and products distributed in over 120 countries. The company operates debt-free and has...

Founded
2004
Headquarters
Prebold, Slovenia
Annual capacity
<1 GW/year
Employees
200-500
02

Catalogue against catalogue

Averages over every model in the database
Metric AKCOME Bisol
Catalog & Power
Panel Models 3 12+9
Max Power 700 W+120 W 580 W
Avg Power 672 W+197 W 475 W
Efficiency
Max Efficiency 22.54% 23.50%+0.96 pp
Avg Efficiency 21.63% 21.75%+0.12 pp
Reliability & Warranty
Avg Temp Coefficient -0.240%/°C+0.051 -0.291%/°C
Bifacial Share 3 (100%)+92 pp 1 (8%)
Avg Warranty 30.0 yrs+0.4 yr 29.6 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

Bisol skews to higher efficiency: 33% of lineup is 23%+

Power spread
Share of each catalogue in every power band

AKCOME offers more 600W+ panels (100% of lineup)

AKCOME cell technology
Share of their models by cell architecture

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

Bisol cell technology
Share of their models by cell architecture

Dominant cell tech: <strong>PERC</strong> (58%)

04

The flagships

Highest-power models from each brand
05

Written summary

Checking cache...

Bisol is a European solar module manufacturer founded in 2004 and headquartered in Prebold, Slovenia. The company reports an annual production capacity of approximately 750 MW and describes itself as Europe's largest PV module producer. While Bisol is well regarded among European installers for quality and reliability, available research does not confirm it holds BloombergNEF Tier 1 bankability status alongside the major volume players. AKCOME, formally Jiangsu Akcome Science and Technology Co., Ltd., is a Chinese manufacturer founded in 2006 that has confirmed BNEF Tier 1 status and has announced planned N-type cell capacity in the multi-gigawatt range at its Changxing base, giving it a considerably larger institutional footprint in global project finance.

Bisol's current product lineup centers on G12R TOPCon technology, most visibly in its BGO series designed to meet European regulatory standards, alongside the premium Supreme series targeting residential rooftops where aesthetics and long-term output guarantees are priorities. The brand earned updated hail-impact certifications in 2025 and markets a 25-year 100% output power guarantee as a key differentiator. AKCOME has built its technical identity primarily around heterojunction (HJT) technology, reporting mass-production cell efficiencies above 25%, while also producing TOPCon modules. Its range spans compact residential formats up to high-wattage configurations suited to commercial rooftops and utility-scale ground mounts, and independent reviewers generally position the brand at the budget-to-mid pricing tier.

For European residential and small-commercial projects in 2025, Bisol is the more natural fit, as local manufacturing provides shorter lead times, stronger EU supply-chain traceability, and firm warranty terms. AKCOME suits cost-sensitive utility or larger commercial projects where BNEF Tier 1 bankability is a lender requirement and price per watt is the primary driver, though the brand's limited third-party test visibility and a flagged website accessibility issue noted in early 2025 are worth raising during lender due diligence.

Generated by Claude Sonnet · 2026-06-09

06

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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.

Shop prices: See 2 AKCOME offers · See 12 Bisol offers

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.