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Swiss chalet with a photovoltaic system at sunrise

COMPLETE PV SYSTEMS · OPTIONAL STORAGE

In Vuadens, solar planning starts with your roof and heating system

Will your system supply the household as it is today, or a future heat pump too? This is an early planning question in Vuadens, where the municipality documents both solar projects and district heating. We recommend reviewing the roof, heating plans and electricity demand together when preparing a quotation. The following sources help you investigate your particular building.

Vuadens, Freiburg

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Local planning

What to check before installing solar in Vuadens

Use the energy plan as a starting point

The published municipal energy plan is dated April 2018. Its solar assessment considers different roof uses: electricity generation alone or a combination of solar heat and photovoltaics. This historical municipal assessment does not replace a current roof study. We recommend recalculating usable areas, obstructions and monthly output for your building. Compare options using the same roof assumptions and specify whether hot water will come from electricity, solar thermal collectors or the heating system.

District heating or a heat pump changes the demand assumptions

The December 2023 municipal bulletin describes district heating supplied by a woodchip boiler at the school, serving public and private buildings. Whether your home can connect today requires a separate enquiry. For your solar quotation, first record the planned heat supply, then estimate future electricity demand. District heating and an individual heat pump create different consumption profiles. Any proposed battery should therefore be calculated using your expected electrical demand.

Prepare a complete file for the municipality

The Fribourg notification form requests a site plan at 1:500 or 1:1000, a plan view, and section and elevation views of the installation. For photovoltaics it records capacity, expected annual production and area. Assemble these with your specialist and keep figures consistent across the form, drawings and quotation. Ask Vuadens municipality to confirm the procedure for your proposal beforehand; completing a notification form does not by itself settle whether a permit is required.

Check protection status and hail resistance before choosing products

The cantonal solar guidance explains special permit requirements for cultural assets and protected natural sites. It also cites ECAB’s recommendation of hail resistance class RG 3 or higher. We recommend clarifying protection requirements for your parcel first and listing proposed modules with their documented hail resistance. This allows the design and product selection to be assessed together before ordering.

Prepare for your initial project assessment

  • Collect roof views and the parcel number; record planned roofing work.
  • If replacing heating, clarify the intended heat supply before forecasting electricity demand.
  • Assemble the site plan, panel layout and section views with your specialist.
  • Confirm the planning procedure, grid connection and tariff assumptions for the specific address.

Solar questions for Vuadens

Are the energy plan’s solar figures current yield forecasts?

No. The linked plan dates from 2018 and assesses the municipality. For an investment, we recommend a new calculation for the specific roof with documented assumptions.

Which drawings do I need for solar notification?

The cantonal form lists a site plan, plan view, sections and elevations. Confirm the documents and procedure with the municipality.

Services

What we offer.

PV system, heat pump, storage, wallbox and monitoring from one team. Every service is planned as part of a working energy system.

Request project review
Illustration of a home with a solar roof, heat pump and charging station.

01 · Roof & facade

Plan and install PV systems cleanly.

We review roof, structure, shading, cable routing, inverter and grid connection. Then we create a technically reliable quote.

Roof review · Electrical coordination · Commissioning

01 / 05

Process

Understand first, then promise.

From first contact to commissioning, every system follows a clear process. We clarify roof, electrical work, incentives and expansion path completely. Only then do you receive a reliable quote. No site chaos, no wishful math.

  1. 01
    About 2 minutes

    Initial estimate

    Your key details are enough for a first, honest orientation — no appointment, no obligation.

  2. 02
    Response within 24–48 h

    3D survey & technical review

    We measure the roof by drone and clarify electrical work, regulations and the grid operator.

  3. 03
    A few days after the survey

    Transparent quote

    You see every line item individually, realistic ranges and sensible options such as storage or a wallbox.

  4. 04
    After permit and grid-operator approval

    Planning, installation & commissioning

    We coordinate execution, registration, acceptance and documentation until your system is reliably connected to the grid.

Swiss facts

Applies to residential and commercial properties.

One-time remuneration
Federal support depends on system type and size band. Vigorek clarifies which remuneration rate applies to your property and how it interacts with canton and grid operator.
Storage as a system decision
A battery only pays off when it fits your consumption and home technology. We assess it as part of the overall plan — not as a late upsell.
Realistic payback
We calculate with ranges instead of wishful numbers: self-consumption, remuneration and tariff logic together give a realistic picture of your economic return.

Economics

What does your solar system save?

We map self-consumption, feed-in tariff and payback for your property — so you see early what the system realistically returns.

Proof

How sound planning becomes visible.

Our quotes are not built from flat packages, but from checked data, technical pre-assessment and clearly itemized positions.

  1. Planning basis

    Official data as the first cross-check

    Roof potential, irradiation and addresses are checked against GeoAdmin and BFE Sonnendach: the same datasets used by federal and cantonal bodies.

    Tablet showing a 3D roof plan next to printed cadastral plans and elevation maps on a light desk

  2. Property review

    Final quote based on verified data

    The initial estimate gives realistic orientation. For the final quote, we capture roof areas, access and technical conditions through a 3D survey (drone) and on-site review — precise, not based on satellite assumptions.

    Survey drone above a pitched roof during property capture at dusk

  3. Electrical

    Coordination by licensed professionals

    From electrical planning through protection equipment to grid registration: all safety-critical steps are carried out by licensed electrical professionals, in-house or through vetted partners.

    Electrical professional wiring the protection devices in a distribution cabinet next to the inverter

  4. Quote

    Itemized instead of a flat package

    Every line item is shown individually instead of hidden in a flat package — so variants and ranges stay traceable from the start.

    Printed photovoltaic quote with individually itemized positions next to glasses and a pen

Execution standard

  • Fall protection
  • Waterproofing
  • Electrical installation to standard
  • Documentation

Regional clarification

Not every system follows the same logic in Vuadens.

In Switzerland, permits, grid operator, metering concept and incentive path always depend on the property, municipality and canton. These are exactly the points clarified early before a quote becomes binding.

That avoids a generic promise and creates a well-founded assessment that fits the region and the building.

Components by

  • Fronius
  • LONGi Solar
  • BYD
  • SolarEdge
  • Ernst Schweizer
  • SMA
  • Stäubli
  • Huawei
  • KOSTAL

The Founders

Engineering depth. Financial structure.

You know before signing who calculates your project and who builds it. Behind that are two founders with two areas of expertise — engineering and finance — and the conviction that a solar system only works long-term when both fit together from the start.

Christian Freiberger

CFA · former KPMG Senior Manager

Co-Founder · Strategy & Finance

Independent management consultant since 2015, previously Senior Manager at KPMG. Most recently Interim Treasury Manager at an energy storage manufacturer. Christian brings the financial structure: liquidity planning, transparent calculations and no project whose numbers don’t add up.

CFATreasuryBusiness case

Marc Hammerschmidt

B.Eng. Mechanical Engineering

Co-Founder · Engineering & Planning

Marc handles the technical side: planning, structural analysis, system integration and execution that remains traceable a decade later. An engineering mindset means no improvisation, only well-reasoned solutions for every roof.

Mechanical Eng.System planningStructural analysis

Next step

Questions about your roof? We’ll go through them with you personally — the initial estimate is the easiest way in.

Your next step: an initial estimate in about 2 minutes.

Your key details produce a first orientation on price range, incentives and payback — a solid basis to talk through your project.

01

You know where you stand

A realistic span for your roof — not a rounded sales promise.

02

The technical side is built in

Electrical scope, metering and grid connection belong to the calculation from the start, not to a surprise afterwards.

03

You decide calmly

If it fits, a traceable quote follows. If it doesn’t, we’ll tell you that openly.

Start here

Quick to complete, concrete as a starting point for your building — and no obligation.

Free and non-binding.Response within 24–48 h.Your data stays with us.

Direct contact

If the project is already more concrete.

If you prefer to speak directly or already have documents and project context at hand, you can reach us through the usual channels.

Works well for

Roof plans, photos, existing quotes, questions around electrical coordination or already defined project timelines.

Email

info@vigorek.ch

Phone

+41 78 615 90 58

Location

Kirchweg 32, 8102 Oberengstringen, Zürich, CH

Coverage

Complete PV systems with planning, installation, electrical coordination and commissioning across all German-speaking cantons.

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