Solar & Photovoltaics in
Willisau

Elektro Illi AG

Since 1978 · 21–50 empl.·4.6(25)

Elektro Illi AG carries out electrical installations and solar-technology projects for private customers, commercial and industrial clients, and public clients, providing planning, implementation and inspection services.

Illi Kontrolle AG

Since 2020 · 11–20 empl.·4.6(25)

Illi Kontrolle AG carries out inspections of electrical installations in accordance with the Low‑Voltage Installation Ordinance (NIV) and issues the required safety certificate (SiNa) following the inspection.

Afimag AG

Since 1982 · 1–10 empl.

Afimag AG operates photovoltaic systems and produces electricity from solar energy; its installations supply self-consumption power for rental units (for example mini‑houses) and feed surplus electricity into the local grid. The website lists several projects with details on panel areas and annual production.

ÖkoFEN-Schweiz GmbH

Since 2008 · 11–20 empl.

The core activity of ÖkoFEN is the development and production of pellet heating systems and air-water heat pumps, i.e. renewable heating solutions.

Genossenschaft Energie Willisau

Since 2016 · 1–10 empl.

Genossenschaft Energie Willisau operates photovoltaic installations and produces solar electricity used for on‑site consumption, with surplus exported to the grid. It promotes energy saving and storage solutions and provides information, production data and educational resources about photovoltaics.