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Regional service

PV Installation Aargau – Roof & Electrical

People looking for PV installation in Canton Aargau compare more than modules. They compare execution quality, roof protection and coordination. Exactly these points decide on a clean result before quoting and installation.

Local system fit

Aargau is known as the "energy canton" – with PSI (Paul Scherrer Institute) in Villigen researching solar technologies and PARK INNOVAARE as an innovation cluster. AEW Energie AG compensates feed-in at 11.15 Rp./kWh (2025, including HKN). The high density of industrial and commercial buildings offers enormous potential for large rooftop systems. Additionally, the canton supports battery storage with dedicated contributions.

For Aargau 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

Aargau

Service focus

PV Installation

Regional fit

Aargau

Context

How this service works in Aargau in practice.

Aargau comes with its own framework conditions – from incentives and tax treatment to technical requirements. From those, a cleanly managed project flow for your property takes shape.

01Service focus

What really matters for installation on site

People looking for PV installation in Canton Aargau compare more than modules. They compare execution quality, roof protection and coordination. Exactly these points decide on a clean result 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.

  • 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.
02Regional framework

Why this canton shifts the priorities

Aargau is known as the "energy canton" – with PSI (Paul Scherrer Institute) in Villigen researching solar technologies and PARK INNOVAARE as an innovation cluster. AEW Energie AG compensates feed-in at 11.15 Rp./kWh (2025, including HKN). The high density of industrial and commercial buildings offers enormous potential for large rooftop systems. Additionally, the canton supports battery storage with dedicated contributions. Aargau: highest cantonal subsidy in Switzerland with CHF 380/kWp. Despite best subsidies only 7.6% potential utilized — huge growth opportunities! Parking lot solar niche subsidy unique in Switzerland. Aargau solar offensive active.

  • In Canton Aargau, 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.
03Project logic

How roof, installation and electrical work fit together

In Aargau, PV systems can be fully deducted from taxes as value-maintaining and energy-saving investments. The canton allows distribution over several tax periods when taxable income is exceeded. Mounting structure and scaffolding planned around roof type and access.

  • 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.

Regional context

PV Installation in Aargau: what matters here

In Canton Aargau, cantonal rules, the responsible grid operator and local permit procedures shape how a project is planned and delivered. The points below show what really matters before quoting, installation and handover.

Regional starting point

In Canton Aargau, incentives, grid operators and permit procedures change the priorities for this service.

Service core

Installation quality is decided before site work starts: roof access, mounting structure, cable routing and fall protection need to be planned together.

Grid & registration

For Canton Aargau, grid operators such as AEW Energie AG, metering concept and commissioning are aligned early.

Decision reason

In Canton Aargau, roof type, access and cable routing need to be clarified early so installation does not turn into change orders.

Execution

Mounting structure and scaffolding planned around roof type and access.

Economic frame

Feed-in tariff and self-consumption are matched to the property; in the canton, 8.2 Rp./kWh (AEW) is one relevant reference point.

Cantonal framework

Which cantonal framework shapes the project in Aargau.

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

Aargau sets the economic pace for this service.

Aargau is known as the "energy canton" – with PSI (Paul Scherrer Institute) in Villigen, which also researches solar technologies. The high density of industrial and commercial buildings offers enormous potential for large rooftop systems.

Aargau is known as the "energy canton" – with PSI (Paul Scherrer Institute) in Villigen researching solar technologies and PARK INNOVAARE as an innovation cluster. AEW Energie AG compensates feed-in at 11.15 Rp./kWh (2025, including HKN). The high density of industrial and commercial buildings offers enormous potential for large rooftop systems. Additionally, the canton supports battery storage with dedicated contributions.

Tax and subsidy logic

In Aargau, PV systems can be fully deducted from taxes as value-maintaining and energy-saving investments. The canton allows distribution over several tax periods when taxable income is exceeded. CHF 380/kWp cantonal subsidy for roof-integrated systems — HIGHEST in Switzerland! Calculation example 10 kWp: Federal CHF 3,550 + Canton CHF 3,800 = Total CHF 7,350 (41% subsidized!). Parking lot solar bonus: unique offering for commercial/industrial.

Permits and energy law

Notification via EVEN portal. Standard roof systems require no building permit. Parking lot solar: simplified approval. Aargau solar offensive supports quick action. Aargau relies on individual responsibility, flanked by MuKEn 2014 requirements for new buildings. The revised Energy Act (EnergieG AG) requires self-generation for new buildings and restricts fossil heating upon replacement.

Market signal and location

Aargau: highest cantonal subsidy in Switzerland with CHF 380/kWp. Despite best subsidies only 7.6% potential utilized — huge growth opportunities! Parking lot solar niche subsidy unique in Switzerland. Aargau solar offensive active. Cantonal subsidy programmes complement Pronovo partly for specific storage solutions. AEW Energie AG offers attractive feed-in tariffs as regional provider. Additionally, Aargau subsidizes consulting through the cantonal energy advisory service.

Cantonal subsidy

CHF 380/kWp HÖCHSTE in der Schweiz!

Further reading

What genuinely helps you from here.

Whether you want to go deeper into the service, explore the location context or compare projects in nearby regions – here is where you continue.