Centrale photovoltaïque en cohabitation du Grand Chasseral

Centrale photovoltaïque en cohabitation du Grand Chasseral solar overview.

The Mont-Soleil photovoltaic extension in Saint-Imier is designed to combine winter solar generation with agriculture and ecological measures. MontSol SA is developing the scheme alongside the existing solar research station. Its building permit was confirmed by the Bern cantonal department in January 2026.ConsentedSwitzerland

At a Glance

Declared capacity

8.5 MW

Mounting

Ground

Operator

Data coming soon

Country

Switzerland

Location

47.162°, 6.987°

Website

Official project page

Ownership

Owner data coming soon.

Organisations

14 records

Organisations recorded as working on this asset or its project, and their role.

Organisation	Role	Details
	MontSol project-company participantDevelopment And Finance	The project partnership identifies a 15% shareholding in MontSol SA, the company for the proposed photovoltaic extension.
	Electrical plan-submission agentEngineering And Design	Arnold AG is named with La Goule as an agent submitting the June 2024 electrical infrastructure plans.
	Photovoltaic and agricultural research partnerResearch And Monitoring	BFH’s photovoltaic laboratory and its agricultural, forest and food sciences school contributed research presented in October 2025.
	MontSol project-company participantDevelopment And Finance	The project partnership identifies a 42.5% shareholding in MontSol SA, the company for the proposed photovoltaic extension.
	Planning design authorEngineering And Design	BKW Energie SA is named as the project author in the June 2024 building application notice.
	Land and agricultural project partnerDevelopment And Sponsor Context	The Bourgeoisie de Saint-Imier leads the agriculture and nature component of the proposed cohabitation project.
	Information and education partnerDevelopment Context	Espace découverte Énergie leads information and education within the wider Mont-Soleil cohabitation programme.
	Agricultural adviserTechnical Advisory	The project partnership identifies the Fondation Rurale Interjurassienne as its agricultural expert during design.
	Applicant and prospective operatorProject Company And Development	MontSol SA is the applicant for the photovoltaic extension and the proposed operating company for its electricity infrastructure.
	Ecology and biodiversity adviserConsenting Environmental	Natura provides ecological expertise and long-term vegetation monitoring for the Mont-Soleil cohabitation programme.
	Electricity-network planning partnerGrid Connection	La Goule submitted electrical infrastructure plans with Arnold AG for the Mont-Soleil project and associated network works.
	MontSol project-company participantDevelopment And Finance	The project partnership identifies a 42.5% shareholding in MontSol SA, the company for the proposed photovoltaic extension.
	Cohabitation project partnerDevelopment And Sponsor Context	Société Mont-Soleil is a partner in the wider programme combining the photovoltaic extension, agriculture and scientific research.
	Landscape integration adviserTechnical Advisory	The October 2025 project update identifies SL-FP’s contribution to refining the photovoltaic design and its proposed role supervising a landscape workshop.

Equipment

1 record

Panels and inverters recorded at this installation, with each unit's rating as its source gives it.

Equipment	Manufacturer	Model	Units	Unit rating	Source
PanelsProposed	Not set	Not setThe June 2024 planning notice documents 391 tables of 48 modules for the proposed extension. This group represents the extension panels described in that application.	18,768	Not set	Source14 Jun 2024

Supplier registration

Contact page only

How suppliers get onto this project's radar: its standing register, supplier portal or contact route.

The project website provides a general contact route for enquiries. Supplier discussions can be directed to the project partnership through that route.

General contact route for the Mont-Soleil project partnership.

Source

Capacity history

Recorded project capacity figures. Future-dated changes are shown but are not used as current capacity.

Effective	Capacity type	Capacity	Source
Current	Declared capacity	8.5 MW	Mont-Soleil project partnership – March 2024 design

Wind [m/s]

Wave [m]