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PV Installation Solothurn – Roof & Electrical

People looking for PV installation in Canton Solothurn compare more than modules. They compare execution quality, roof protection and coordination. That is why this page focuses on the points that matter before quoting and installation.

Local system fit

Canton Solothurn was among the first to fully implement MuKEn 2014. Regio Energie Solothurn offers seasonally differentiated compensation: 9.0 Rp./kWh in winter, 4.0–6.2 Rp./kWh in summer. This structure rewards winter production and makes storage economical. The southern Jura slopes around Solothurn and Grenchen benefit from above-average sunshine hours and ideal southern exposure.

For Solothurn we plan PV installations object-specifically: mounting structures per SIA 261, SUVA-compliant fall protection and complete handover documentation before the system goes live.

Project profile

Location

Solothurn

Service focus

Mounting structure per SIA 261, documented penetrations, SUVA-compliant fall protection and complete handover including string diagram, measurement protocol and photo documentation.

Regional fit

Canton Solothurn was among the first to fully implement MuKEn 2014. Regio Energie Solothurn offers seasonally differentiated compensation: 9.0 Rp./kWh in winter, 4.0–6.2 Rp./kWh in summer. This structure rewards winter production and makes storage economical. The southern Jura slopes around Solothurn and Grenchen benefit from above-average sunshine hours and ideal southern exposure.

Context

How this service works in Solothurn in practice.

Solothurn comes with its own framework conditions – from incentives and tax treatment to technical requirements. This page shows how those translate into a clean project flow for your property.

01
Service focus

What really matters for installation on site

People looking for PV installation in Canton Solothurn compare more than modules. They compare execution quality, roof protection and coordination. That is why this page focuses on the points that matter before quoting and installation. Mounting structure per SIA 261, documented penetrations, SUVA-compliant fall protection and complete handover including string diagram, measurement protocol and photo documentation.

Service focus

  • Mounting structure matched to tile, sheet metal, facade or flat-roof systems – not generic, but dimensioned object-specifically to wind zone (SIA 261), snow loads and building height.
  • Clean cable routing with documented penetrations and roof membrane protection. Every transition between roof and electrical installation is photographed and recorded.
  • Coordination of scaffolding, fall protection (SUVA-compliant), installation logistics and object-specific safety requirements – including a mounting concept prior to material ordering.
  • Photo documentation and traceable handover: single-line diagram, string plan, data sheets, measurement protocol, photos – everything needed for acceptance, grid operator and future service.
02
Regional framework

Why this canton shifts the priorities

Canton Solothurn was among the first to fully implement MuKEn 2014. Regio Energie Solothurn offers seasonally differentiated compensation: 9.0 Rp./kWh in winter, 4.0–6.2 Rp./kWh in summer. This structure rewards winter production and makes storage economical. The southern Jura slopes around Solothurn and Grenchen benefit from above-average sunshine hours and ideal southern exposure. Neuendorf — Solothurn's solar champion: 12,329 kWp, 27.2% utilization (Swiss top). City of Solothurn: 8.2%. Total potential >3,000 GWh/year, currently only 11.2% utilized. Regio-Energie: 15 Rp./kWh — most attractive tariff in the region.

Regional framework

  • In Canton Solothurn, roof type, access and cable routing need to be clarified early so installation does not turn into change orders.
  • Owners compare execution quality, roof protection and clear ownership more than simple price promises.
  • Site logic directly affects timing, appearance and future maintenance.
03
Project logic

How roof, installation and electrical work fit together

In the Canton of Solothurn, PV investments are fully deductible as property maintenance. Energy-saving measures can also be spread over two consecutive tax periods if the deduction exceeds taxable income in one year. Mounting structure and scaffolding planned around roof type and access.

Project logic

  • Mounting structure and scaffolding planned around roof type and access.
  • Clean penetrations, orderly cable routing and documented handover.
  • Aligned workflow between installation, electrical work and commissioning.

Cantonal framework

Which cantonal framework shapes the project in Solothurn.

The technical service stays the same, but the project frame changes with the canton. That is exactly where incentives, tax treatment and MuKEn requirements become strategically relevant.

Local context

Solothurn sets the economic pace for this service.

The Canton of Solothurn was one of the first cantons to fully implement MuKEn 2014. The southern Jura slopes around Solothurn and Grenchen benefit from above-average sunshine hours and ideal southern exposure.

Canton Solothurn was among the first to fully implement MuKEn 2014. Regio Energie Solothurn offers seasonally differentiated compensation: 9.0 Rp./kWh in winter, 4.0–6.2 Rp./kWh in summer. This structure rewards winter production and makes storage economical. The southern Jura slopes around Solothurn and Grenchen benefit from above-average sunshine hours and ideal southern exposure.

Tax and subsidy logic

In the Canton of Solothurn, PV investments are fully deductible as property maintenance. Energy-saving measures can also be spread over two consecutive tax periods if the deduction exceeds taxable income in one year. Municipally variable: subsidies through individual municipalities. Regio-Energie Solothurn: most attractive feed-in tariff in the region with 15 Rp./kWh. Tax deductibility. Neuendorf: model example with 27% utilization rate.

Permits and energy law

30-day notification before construction. eBau portal available for digital submission. Normal notification procedure for roof systems. Solothurn implemented MuKEn 2014 as of 2017 – as one of the first cantons. The cantonal energy law requires a high share of self-generated electricity for new buildings and mandates switching to renewable systems when replacing heating.

Market signal and location

Neuendorf — Solothurn's solar champion: 12,329 kWp, 27.2% utilization (Swiss top). City of Solothurn: 8.2%. Total potential >3,000 GWh/year, currently only 11.2% utilized. Regio-Energie: 15 Rp./kWh — most attractive tariff in the region. Solothurn offers subsidies for energy renewal of the building envelope including PV through the cantonal Building Programme. Pronovo one-time payment and cantonal contributions are cumulative. Some municipalities (e.g., Olten) offer additional subsidies.

Neuendorf utilization

27.2% Schweizer Spitzengemeinde

Further reading

Which pages genuinely help from here.

Whether you want to go deeper into the service, explore the location context or compare projects in nearby regions – these pages will take you further.