--- title: "ARTsolar vs Sonnen - Brand Comparison | ComparePV" description: "Compare ARTsolar vs Sonnen solar panels: full portfolio, efficiency, cell technology breakdown, warranty terms and company background." source: "https://comparepv.com/artsolar-vs-sonnen" --- # ARTsolar vs Sonnen Both brands are closely matched on catalog size, efficiency and bifacial share - the choice comes down to local availability, price and specific model features. ## The two companies | Attribute | ARTsolar | Sonnen | | --- | --- | --- | | Country | South Africa | Germany | | Headquarters | Durban | Wildpoldsried | | Founded | 2010 | 2010 | | Employees | | 1000-2000 | | Annual capacity | | | | Tier 1 | no | | | Listed | | | | Website | [https://www.artsolar.co.za](https://www.artsolar.co.za) | [https://sonnengroup.com](https://sonnengroup.com) | Sonnen is a German energy storage technology company specializing in intelligent home battery systems, most notably the sonnenBatterie — the world's first all-in-one lithium-ion home battery system commercially available. The company also develops virtual power plant (VPP) solutions and energy community platforms... ## Catalog & Power | Measure | ARTsolar | Sonnen | Margin | | --- | --- | --- | --- | | Panel Models | 0 | 0 | | | Max Power | 0 W | 0 W | | | Avg Power | 0 W | 0 W | | ## Efficiency | Measure | ARTsolar | Sonnen | Margin | | --- | --- | --- | --- | | Max Efficiency | - | - | | | Avg Efficiency | - | - | | ## Reliability & Warranty | Measure | ARTsolar | Sonnen | Margin | | --- | --- | --- | --- | | Avg Temp Coefficient | - | - | | | Bifacial Share | 0 (0%) | 0 (0%) | | | Avg Warranty | - | - | | ## Summary ARTsolar was founded in 2010 in Durban, South Africa, and operates as the country's only 100% locally owned PV module manufacturer. Its Durban facility has been upgraded to a 340 MW assembly line through a partnership announced in June 2025 with Chinese manufacturer JA Solar, which holds Tier 1 recognition from S&P Global Commodity Insights. ARTsolar itself does not appear independently on major BloombergNEF Tier 1 bankability lists. Sonnen was also founded in 2010, in Wildpoldsried, Bavaria, Germany, and became a wholly owned subsidiary of Shell around 2019, placing it within one of the world's largest energy companies. By institutional footprint, Sonnen's Shell backing gives it a substantially stronger financial standing than ARTsolar's regionally anchored, locally owned position. The two companies are not direct competitors and do not occupy the same product category. ARTsolar manufactures solar PV modules - currently large-format, high-efficiency panels reflecting its JA Solar technology collaboration - targeting utility-scale and commercial projects in South Africa, particularly installations tied to government renewable procurement programs. Sonnen, by contrast, does not manufacture solar panels at all. Its core offering is a family of residential lithium iron phosphate battery storage systems - the sonnenCore+, sonnenHome Battery 11, and sonnenEvo - designed for homeowners who already have a solar array and want to store excess generation. Sonnen also runs virtual power plant programs that aggregate customer batteries to provide grid services. A buyer comparing these two brands is not choosing between rival solar panels; they are choosing between a panel manufacturer and a battery storage specialist. For South African buyers seeking locally assembled modules with domestic content credentials, ARTsolar is a regionally unique option with strong policy alignment. For buyers in Europe, the US, or Australia seeking premium residential storage with a long warranty and Shell-backed support infrastructure, Sonnen is a proven choice at the higher end of the market. \---LINKS--- \- https://www.pv-magazine.com/2025/06/17/ja-solar-artsolar-agree-to-expand-pv-module-manufacturing-in-south-africa/ \| JA Solar and ARTsolar agree to expand PV module manufacturing in South Africa \| article \- https://www.climatescorecard.org/2025/02/artsolar-in-south-africa/ \| ARTsolar in South Africa - Climate Scorecard profile \| article \- https://www.engineeringnews.co.za/article/artsolar-and-ja-solar-driving-south-africas-renewable-energy-revolution-2025-06-12 \| ARTsolar and JA Solar driving South Africa's renewable energy revolution \| article \- https://www.solarreviews.com/blog/sonnen-battery-review \| Expert review of Sonnen batteries - cost and performance \| review \- https://www.energysage.com/supplier/21875/sonnen-inc/ \| Sonnen Inc. profile and installer reviews - EnergySage \| review Sources: \- \[JA Solar, ARTsolar agree to expand PV module manufacturing in South Africa - pv magazine\](https://www.pv-magazine.com/2025/06/17/ja-solar-artsolar-agree-to-expand-pv-module-manufacturing-in-south-africa/) \- \[ARTsolar in South Africa - Climate Scorecard\](https://www.climatescorecard.org/2025/02/artsolar-in-south-africa/) \- \[ARTsolar and JA Solar driving South Africa's renewable energy revolution - Engineering News\](https://www.engineeringnews.co.za/article/artsolar-and-ja-solar-driving-south-africas-renewable-energy-revolution-2025-06-12) \- \[Expert review of Sonnen batteries - SolarReviews\](https://www.solarreviews.com/blog/sonnen-battery-review) \- \[Sonnen Inc. profile and reviews - EnergySage\](https://www.energysage.com/supplier/21875/sonnen-inc/) Written by claude-sonnet from the figures above. ## Other comparisons - [ARTsolar vs A.B. Energy](https://comparepv.com/artsolar-vs-a-b-energy) - [AE Solar vs Sonnen](https://comparepv.com/ae-solar-vs-sonnen) - [ARTsolar vs AEET](https://comparepv.com/artsolar-vs-aeet) - [AIKO vs Sonnen](https://comparepv.com/aiko-vs-sonnen) - [ARTsolar vs AKCOME](https://comparepv.com/artsolar-vs-akcome) - [ASM vs Sonnen](https://comparepv.com/asm-vs-sonnen) --- Source: https://comparepv.com/artsolar-vs-sonnen