Alsol is a Swiss renewable energy specialist focused on photovoltaic systems, energy storage, and solar thermal installations. Operating for over 25 years with 25 employees, the company provides end-to-end solutions from planning through installation and maintenance.

Where is Alsol located?

Alsol is headquartered in Frauenfeld, Switzerland.

What energy sectors does Alsol operate in?

Alsol operates in Solar, Energy Storage.

How many employees does Alsol have?

Alsol has approximately 10-50 employees.

Back to directory

Alsol

Alsol ag alternative energiesysteme

Frauenfeld, Thurgau, Switzerland

SolarEnergy StoragePrivate

Founded 199910-50 employees25 MW installed

Visit website

About

Founded in 1999, Alsol is a private headquartered in Frauenfeld, Switzerland with approximately 10-50 employees specializing in Solar, Energy Storage.

Alsol ag alternative energiesysteme, formerly Böhni Energie & Umwelt GmbH, is a Swiss-based renewable energy company specializing in the design, planning, and installation of photovoltaic systems, solar thermal installations, energy storage solutions, and electric vehicle charging stations. The company operates across residential, commercial, and public buildings. With an in-house team of electricians, roofers, and engineers, Alsol manages all aspects of project delivery from initial consultation through permitting, installation, and ongoing maintenance. The company has installed approximately 2,000 systems totaling 25 MWp cumulative capacity since its founding in 1999. In 2022–2023 alone, Alsol completed approximately 300 installations with 7 MWp capacity. The company became part of the BE NETZ AG group in 2017.

solarphotovoltaicenergy storageelectric vehicle chargingsolar thermal

Headquarters

Frauenfeld, Switzerland

Founded

1999

Employees

10-50

Company Type

Private