Local service

Solar installation in Aarau with Eniwa grid connection

Local system fit

For a solar installation in Aarau, success depends not only on module area but on the process: 3D survey, transparent quote, grid-operator coordination and commissioning with full documentation. Vigorek handles the full coordination — from the initial estimate to handover.

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Project profile

Location

Aarau, Aargau

Service focus

Solar system installation

Regional fit

Aargau

Context

How this service works in Aarau in practice.

In Aarau, local conditions decide the project path: what matters before quoting, how delivery runs and what is truly handed over in the end.

01Service focus

What the full installation secures on site

Aarau is the capital of Canton Aargau, and Eniwa is currently reinforcing the city's supply with the new Aarau substation. On this grid we plan your photovoltaic system so that connection, subsidy and registration fit together from the start. From the initial estimate and 3D survey through a transparent quote to full commissioning — one project, one process, one contact.

Initial estimate and 3D survey (drone): roof, orientation, shading, electrical setup and possible constraints — before any quote is prepared.
Transparent quote with clearly separated line items: material, installation, scaffolding, electrical, registration, commissioning — each one individually listed.
Coordination of Pronovo registration, metering concept, grid-operator queries and meter replacement through to full commissioning.
Optional integration of battery storage, wallbox and energy management — only where the usage profile and expansion goals support it.

02Regional framework

Why this canton shifts the priorities

In Aarau, Eniwa AG (formerly IBAarau) is the responsible grid operator for connection, metering and feed-in compensation. What matters here is combining the City of Aarau's communal energy subsidy with the cantonal registration process via the EVEN platform, which we set up correctly for you. Aargau: the one-time payment (Pronovo, roof-integrated CHF 380/kWp) combined with the full tax deduction pays off. At cantonal level Aargau funds facade PV specifically (integrated facade CHF 400/kWp). Even so only 7.6% potential utilized — huge growth opportunities! Aargau solar offensive active.

The City of Aarau's communal subsidy pays a base amount plus a per-kWp contribution for new PV systems from 2 kWp (CHF 500 plus 100/kWp for standard PV, up to CHF 15'000) – but the application must be filed before construction starts.
As grid operator, Eniwa governs the grid connection, meter change and feed-in tariff in Aarau, which from 2026 is statutorily based on the federal reference market price.
In Aargau, well-integrated systems outside protected core and old-town zones require registration rather than a permit – but stricter rules apply in the protected zones of Aarau's old town.

03Project logic

How coordination makes the difference

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. We submit the solar registration form via the cantonal EVEN platform to the City of Aarau and account for the 30-day waiting period before construction.

We submit the solar registration form via the cantonal EVEN platform to the City of Aarau and account for the 30-day waiting period before construction.
We coordinate grid connection, meter change and feed-in compensation with Eniwa AG and register the system for the one-time payment with Pronovo.
We prepare the application for the City of Aarau's communal energy subsidy before construction and size the system for high self-consumption.

Regional context

Solar system installation in Aarau: what matters here

In Aarau, 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

Aarau is shaped by Canton Aargau rules, but roof access, meter cabinet and actual building use decide the local project path.

Service core

A complete solar installation depends on sequencing, grid-operator coordination, electrical planning and clean commissioning.

Grid & registration

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

Decision reason

The City of Aarau's communal subsidy pays a base amount plus a per-kWp contribution for new PV systems from 2 kWp (CHF 500 plus 100/kWp for standard PV, up to CHF 15'000) – but the application must be filed before construction starts.

Execution

We submit the solar registration form via the cantonal EVEN platform to the City of Aarau and account for the 30-day waiting period before construction.

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 really shapes Aarau.

Aarau operates inside the same cantonal system as other projects in Aargau: taxes, incentives and energy law shape both speed and economics.

Local context

Aarau decides locally, but is shaped canton-wide.

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.

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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. Aargau grants no general cantonal PV top-up per kWp for standard roof systems. The CHF 360–400/kWp (roof-integrated CHF 380/kWp) and the CHF 250/kWp parking-area bonus come from the national Pronovo one-time payment, not from the canton. At cantonal level, Aargau funds building-integrated and facade PV (integrated facade CHF 400/kWp, mounted facade CHF 200/kWp, from 75 degrees tilt, since 2025) and individually assessed large systems from ~100 kWp. In addition there is the full tax deduction (from 2026 with the net principle for the feed-in tariff). Exact rates: Energy Funding Programme 2025–2026, energieberatungAARGAU.

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: the one-time payment (Pronovo, roof-integrated CHF 380/kWp) combined with the full tax deduction pays off. At cantonal level Aargau funds facade PV specifically (integrated facade CHF 400/kWp). Even so only 7.6% potential utilized — huge growth opportunities! Aargau solar offensive active. Aargau grants no general cantonal PV top-up for roof systems; cantonal funding targets facade PV (integrated facade CHF 400/kWp, mounted facade CHF 200/kWp, from 75 degrees tilt). AEW Energie AG offers attractive feed-in tariffs as regional provider. Additionally, Aargau subsidizes consulting through the cantonal energy advisory service.

One-time payment

CHF 380/kWp Pronovo, dachintegriert

What genuinely helps you from here.

From Aarau, owners should quickly be able to go deeper into the service, the location context or the next nearby region.

Service

Solar installation – service overview

The complete flow from first assessment to commissioning.

Location

Aarau – overview

A clear overview for projects in Aarau.

Service

PV installation

The right entry point for customers focused on execution.

Hub

Location overview

Compares Aarau with additional priority locations in Aargau.