SwissWatt One AG
Swiss manufacturer of premium solar modules with up to 40-year product and performance warranties.
Last updated September 27, 2026
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Overview
SwissWatt One AG is a Swiss company that manufactures and sells premium solar modules, marketed under the SwissWatt One brand. The company positions itself around Swiss quality, offering modules with up to 40-year product and linear performance warranties, high temperature tolerance, and extreme mechanical robustness. Its product range includes modules rated up to 510 W with efficiency above 25%. The company operates a two-tier partner network that allows partners to offer SwissWatt One modules exclusively in their regions. Its team brings more than 15 years of solar industry experience, including former executives from a renowned American PV manufacturer and Switzerland's largest PV installation company. The company is led by CEO Michael Andreas Heilig, who joined in 2022 after nearly 15 years at SunPower Europe. SwissWatt One AG is headquartered in Switzerland and serves both B2B and end-customer markets, initially in Switzerland and increasingly abroad, particularly Germany and other European markets.
History
SwissWatt One AG was founded as a Swiss company to manufacture and distribute premium solar modules. The founding team includes former executives from a renowned American PV manufacturer and Switzerland's largest PV installation company, bringing over 15 years of solar industry experience. After successfully establishing its modules in the Swiss market, the company founded SwissWatt One AG as the next logical step to offer its modules outside Switzerland. In 2022, Michael Andreas Heilig was appointed CEO; he had previously spent nearly 15 years at SunPower Europe, most recently overseeing sales for Eastern Europe through Pakistan (EMEA). The company operates a two-tier partner network to ensure exclusive regional availability of its modules. It continues to expand its presence in Europe, particularly in Germany, and emphasizes Swiss quality, long warranties, and high product performance.
- 2022
Michael Andreas Heilig appointed CEO of SwissWatt One AG
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Products and positioning
Premium Swiss-quality solar modules with industry-leading warranties and robustness.
SwissWatt One premium solar modules
Modules with up to 510 W output, >25% efficiency, 40-year product and linear performance warranty, temperature tolerance -45 to 88°C, robustness 8000-9000 Pa.
Sources3 sources
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