HSL Solar GmbH, headquartered in Wiesen, is a service company specialized in the installation and sale of photovoltaic systems. Its product portfolio covers installation and sales of all system sizes, from private residential roofs to large industrial projects. The company is a 100% subsidiary of E.ON Greentech Group GmbH and operates a branch in Luizhausen. According to §267 HGB the company is classified as a medium-sized corporation and had an average workforce of 94 employees in 2024. HSL manages its earnings power using EBIT, which amounted to €6,033.3k in 2024.
die Planung, Errichtung, Montage, Inbetriebnahme, Wartung, Reparatur und der Betrieb von Photovoltaikanlagen und dazugehörigen Komponenten wie Speicherlösungen, Energiemanagementsysteme, Elektroladestationen, Wärmetechnik und Messtellentechnik, die Vermittlung, Vermarktung und der Vertrieb von Energielieferverträgen, sowie sämtliche damit zusammenhängende und den Gesellschaftszweck fördernde Geschäfte und Tätigkeiten.
Converted using the official Destatis and Eurostat correspondence tables; ISIC Rev. 4 is the United Nations' international industry classification.
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Source: German Commercial Register (Handelsregister) Aschaffenburg Local Court, HRB 10456 (as of 1 November 2026)
| Name | Type | City |
|---|---|---|
| Jörg Griebel | Geschäftsführer(in) | Wiesen |
Source: German Commercial Register (Handelsregister) Aschaffenburg Local Court, HRB 10456 (as of 1 November 2026)
| Year | Revenue | Profit | Balance | Employees |
|---|---|---|---|---|
| 2025 | €11,967,598 | €313,615 | €7,139,210 | — |
| 2024 | €25,156,590 | €4,558,558 | €14,350,648 | — |
| 2023 | €28,290,259 | €3,061,204 | €15,682,978 | — |
| 2022 | €17,104,080 | €818,527 | €9,619,140 | — |
| 2021 | €12,839,783 | €338,044 | €5,804,261 | — |
| 2020 | — | €1,110,007 | €3,151,620 | — |
| 2019 | — | €1,092,045 | €2,255,651 | — |
| 2018 | — | €402,218 | €4,266,993 | — |
| 2017 | — | €584,440 | €3,799,750 | — |
| 2016 | — | €7,255 | €925,297 | — |
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Source: German Commercial Register (Handelsregister) Aschaffenburg Local Court, HRB 10456 (as of 1 November 2026)
| Cost type | Amount | Share |
|---|---|---|
| Personnel Costs | €4,825,916 | 48.5% |
| Material Costs | €4,958,034 | 49.9% |
| Depreciation | €158,177 | 1.6% |
