Solar panel installers in Switzerland.

Buyer reference

To compare Solstis, check which agency will actually monitor the site and if the study, electrical work, connection and the Pronovo file appear in the same scope. Also ask for close references by type of roof, as well as the conditions provided for monitoring, maintenance and warranty interventions.

Buyer reference

An offer from an energy group must be read service by service. Confirm who carries out the technical visit, who installs the modules and who remains responsible for after-sales service. Compare the self-consumption assumptions, connection management and possible storage options with those of two regional installers.

Buyer reference

For a project with panels, battery or terminal, ask for a clear diagram of the equipment and their compatibilities. Check the responsible agency, the announced deadlines, the processing of authorizations and the geographical coverage of the after-sales service. A recent reference on a comparable building helps more than an overall number of installations.

Buyer reference

In Valais, the configuration of the roof, the snow, access to the site and coordination with the roofing can significantly modify the estimate. Ask Photosun to separate the photovoltaic stations, roof, scaffolding and electricity, then specify monitoring, recommended maintenance and response time in the event of a breakdown.

Buyer reference

To evaluate this regional structure, ask who will be your contact between the study, installation and reception. Have details of the panel and inverter models, the production calculation, the price exclusions and the processing of the procedures. Recent references in your municipality allow you to verify the local experience announced.

Buyer reference

If your building is located between Fribourg, Vaud and lower Valais, have the service area and travel time for after-sales service confirmed in writing. Compare sizing without battery then with storage, labor guarantees, electrical work included and how estimated production takes shading into account.

Buyer reference

A turnkey promise must correspond to a precise contractual list. Check that the roof study, electrical sizing, announcements, Pronovo, connection, commissioning and monitoring are assigned to an identified manager. Also ask how a drop in production or material defect will be diagnosed after receipt.

Buyer reference

To compare Younergy, look at both the financial structure and the technique. Clearly distinguish between purchase, financing, or other proposed model, then verify facility ownership, maintenance responsibilities, and exit conditions. The study must indicate the consumption, self-consumption and production hypotheses used in the calculation.

Buyer reference

For a Valais installation combining photovoltaics and charging, ask who signs the electrical inspection and who coordinates the commissioning. The estimate should distinguish between modules, inverter, terminal, protection, connection and possible panel work. Also check recent references, installation guarantees and after-sales service response time.

Buyer reference

With a national service provider, identify the local team that will actually carry out the project. Ask if the visit, planning, installation, procedures and maintenance are carried out internally or by partners. Compare exact models, contract timeline, labor guarantees and escalation process when after-sales intervention is required.

Buyer reference

For a project in Neuchâtel, ask for examples corresponding to your type of building and the constraints of your municipality. Check the electrical work manager, Pronovo support, production assumptions and exclusions. A useful quote also specifies the deadlines, the monitoring delivered and the maintenance or troubleshooting methods.

Buyer reference

Before choosing an offer linked to a local energy player, distinguish between installation, connection and electricity supply services. Ask who carries out each step, what guarantees cover the installation and how after-sales service is organized. Compare separately the cost of the system, the procedures included and the self-consumption assumptions.

For a PPE or a building connected to a local network, also specify the treatment of meters, collective self-consumption and responsibilities between manager and installer.

Buyer reference

For a residential, agricultural or industrial project, require a benchmark of comparable size and complexity. The estimate should explain the supporting structure, electrical protections, connection, monitoring and site responsibilities. Also check labor guarantees and local response capability after commissioning.

Buyer reference

In the Jura or the Bernese Jura, favor a comparison based on achievements subject to similar roof and snow conditions. Ask for details of the electrical work, connection, Pronovo and scaffolding. Confirm the deadlines, the person responsible for the final inspection and the organization of repairs after receipt.

Buyer reference

For a site in Geneva or in the west of Vaud, check that the turnkey promise covers announcements, electrical coordination and commissioning. Ask for references on a comparable building, the brands and models offered, the installation guarantees as well as the expected time frame for processing a monitoring alert.

Buyer reference

For a project in Ticino, request a quotation separating the design study, modules, inverters, mounting structures, electrical work and grid connection procedures. Check who handles commissioning, how shading and visual integration are addressed, and what after-sales terms apply. Compare the production assumptions with a second study.

For a building with visual restrictions, request installation drawings and cable routing details before accepting the proposed solution.

Buyer reference

To compare EBL in the Basel region, ask whether the installation is carried out directly or by an identified partner. The offer document should specify the connection, electrical work, administrative monitoring and guarantees. Also check the after-sales contact and how a production anomaly will be analyzed.

If a battery is considered, require a variant without storage in order to clearly identify the additional cost, the self-consumption gain and the additional guarantees.

Buyer reference

For a solar project combined with mobility or energy management, request a diagram of the interfaces between inverter, meter, battery and terminal. Confirm who installs each item, which applications will remain usable, and what warranties apply. Compare the price of the base system separately from additional features.

Request a demo of the proposed application and confirm which functions would remain available if equipment or a subscription was replaced.

Buyer reference

In central Switzerland, request a study taking into account the geometry of the roof, shading and actual consumption. Check the role of CKW and that of possible partners for installation and electricity. The quote must clearly allocate connection, Pronovo, commissioning, monitoring and after-sales service.

For an electrically heated house, also compare the estimated winter production and the heat pump control strategy.

Buyer reference

For an offer supported by industrial services, check the eligibility of your address and the exact scope of the solar service. Distinguish the costs of installation, connection and any associated energy offers. Ask who carries out the work, who guarantees the installation and which channel takes care of technical problems after receipt.

Buyer reference

To assess a project offered by AET, clarify whether the service covers advice, direct installation or coordination with partner companies. Request an itemised quotation covering components, electrical work, administration and responsibilities. Check the schedule, warranties, monitoring and technical contact after commissioning.

For a condominium, also check consumption metering, energy allocation and contractual responsibilities between the owners and operator.

Buyer reference

In Graubünden, the climate, snow and access to the roof deserve a building-specific study. Ask to distinguish the role of Repower from that of the executing companies, then check the Alpine references, structural sizing, electrical work and guarantees. Post-commissioning monitoring must have a named manager.

If the building is isolated or difficult to access, have the travel, scaffolding and conditions of intervention under warranty separately calculated.

Buyer reference

For a project in Aargau, first confirm whether the offer is available in your municipality and who will carry out the installation. Compare estimated production, exact components, switchboard work and connection. Also ask how the guarantees are distributed between AEW, the installer, the manufacturer and any subcontractors.

For a PPE, also ask who prepares the measurement concept and how production, self-consumption and common costs will be distributed.

Buyer reference

In the canton of Schaffhausen, check the area covered and the exact role of EKS in the installation. Request an offer which identifies the installation company, the electrical manager, the network procedures and Pronovo. Local references, construction time, labor guarantees and breakdown handling must be confirmed separately.

If the roof needs to be renovated soon, compare the cost of immediate installation with that of a coordinated roof and photovoltaic project.

Buyer reference

For a local offer in Solothurn, distinguish between energy advice and construction work. Ask who designs, who installs and who is responsible for electrical reception. Compare the equipment, expected production, connection, guarantees and after-sales service availability, without grouping these elements into a single complete solution statement.

For a rental property, have the measurement model, internal invoicing and the tasks that would remain the responsibility of the owner explained.

Buyer reference

In the canton of Schwyz, ask if EBS acts as an installer, coordinator or energy supplier depending on your address. The quote must name the responsible companies, components, electrical work and procedures included. Check installation guarantees, timing and point of contact used after commissioning.

An on-site visit must also confirm access, electrical panel reserves and any preparatory work not included.

Buyer reference

For an installation in the Zug region, compare the photovoltaic study and any associated energy services separately. Ask who is carrying out the visit, installation and electrical inspection, then check the models offered, exclusions, guarantees and follow-up. An estimate must explain the consumption and self-consumption assumptions.

For a battery, ask for an hourly simulation and not just an annual one to see when the storage really adds value to the building.

Buyer reference

In Thurgau, clarify whether EKT provides the installation directly or directs to a local partner. Demand the identity of the executing companies, the distribution of responsibilities and a detailed estimate. The network procedures, final control, monitoring, installation guarantees and response time must be understood before any signature.

Finally, check whether the services announced remain the same in your municipality or depend on the local partner chosen for execution.

Buyer reference

For an energy renovation in the Lausanne region, ask to separate photovoltaics from other work in order to compare correctly. Check the coordination between roof, electricity and any thermal equipment. The quote should specify local references, models, connection, guarantees and the contact person responsible for after-sales service.

Buyer reference

For a Valais project combining solar and electrical installations, ask who is responsible for the design and final control. Check roof constraints, protection against surges, connection and Pronovo procedures. Compare the references of similar buildings, the installation schedule and the guarantee conditions for labor.

Buyer reference

In the canton of Vaud, an offer combining photovoltaics and electricity must clearly show the limits of each service. Request the single-line diagram, the models, the production study and any adaptations to the table. Also confirm the management of authorizations, connection, monitoring and interventions after receipt.

Buyer reference

For a project that involves both the roof and photovoltaics, compare the advantage of coordination with the detailed costs. Ask about structural responsibilities, waterproofing, fixing system and electrical work. Roof and solar guarantees must be written separately, with a clear procedure in the event of a defect.

Buyer reference

For a project in central Switzerland, ask for a study that explains the orientation, shading and choice of components rather than a simple annual yield. Check who takes care of installation, connection and Pronovo. Compare the guarantees, the documentation provided, the monitoring and the assistance available after receipt.

Buyer reference

Before choosing a cooperative structure, ask how the contract, technical responsibility and monitoring are organized in your region. The quote must identify the performing installer, the components, the procedures and the guarantees. Also check the financing or participation model and the conditions that apply in the long term.

Buyer reference

For a project in the Zurich region, compare the quality of the energy study with the concrete content of the estimate. Ask for consumption assumptions, monthly production, models and interfaces with battery or mobility. Electrical work, connection, guarantees and after-sales service must have clearly identified responsible persons.

Buyer reference

For a local approach in Winterthur, clarify the role of the cooperative and that of the company which will carry out the project. Ask for nearby references, details of components, procedures and guarantees. Also check the economic terms, ownership of the installation and the contact person responsible for long-term technical monitoring.

Buyer reference

In a project combining solar and electrical technology in central Switzerland, ask for a perimeter that avoids gray areas between trades. The estimate should include adaptations to the panel, protection, commissioning and connection. Also compare references, installation guarantees and availability of repairs.

Buyer reference

For a project in Appenzell Innerrhoden, ask for references taking into account local conditions and your type of roof. Check the companies responsible for installation and electricity, the procedures included, the models and the schedule. Labor warranties and after-sales service channel must be documented.

Buyer reference

In the canton of Obwalden, a building technology offer can bring together several lots. Have photovoltaics, electricity, possible storage and coordination detailed separately. Ask who carries each guarantee, how the yield is calculated and what steps are included. Finally confirm monitoring and assistance after commissioning.

Buyer reference

To compare this Schaffhausen specialist, start from a reference project close by power and type of roof. Ask for the calculation model, the exact equipment, the connection and the share of work entrusted to partners. Guarantees, reception, monitoring and response time must appear in the offer.

Buyer reference

When the same service provider works on roofing and solar, ask for two legible but coordinated perimeters. Check the condition of the roof, waterproofing, fixing, cable passages and electrical work. Specify the guarantees specific to each batch and the single person responsible in the event of a problem that is difficult to attribute.

Buyer reference

For a solar project related to construction or renovation work, compare the cost and schedule of each package. Ask who validates the roof structure, who runs the electricity and who follows the procedures. Exclusions, insurance, installation guarantees and comparable references must be confirmed before ordering.

Buyer reference

For an offer in Thurgau, require a simulation adapted to the orientation, shading and consumption profile of the building. Ask for the exact references of the equipment, the electrical work and the procedures included. Compare promised performance, receipt documentation, warranties and post-installation support process.

Buyer reference

A project combining building envelope and photovoltaics requires a precise distribution of responsibilities. Request roof assessment, fixing system, waterproofing and electrical coordination. Compare the references on similar buildings, the guarantees for each lot and the procedure provided if a defect concerns several trades.

Buyer reference

For an installation in Graubünden, request a study that explicitly addresses snow, wind, access and seasonal yield. Check alpine references, sizing of bindings, electrical work and network procedures. The quote must also specify monitoring, guarantees and intervention capacity in your valley.

Buyer reference

For a Bernese regional company, ask who will personally follow the project from the visit to reception. Compare nearby references, models offered, estimated production and work included. Confirm management of Pronovo, connection, warranties and service requests after start-up.

Buyer reference

In the canton of Bern, check that the study corresponds to the language, the municipality and the real constraints of the building. Request a quote detailing components, structure, electricity, procedures and schedule. Local references, labor guarantees, receipt documents and after-sales service response times are useful comparison criteria.

Buyer reference

For a Lucerne project, ask for references of comparable size and a simulation which explains the losses retained. Check the equipment, switchboard work, connection and administrative procedures. Also compare the organization of the site, the installation guarantees, the monitoring and the person responsible for support after reception.

Buyer reference

For an installation in Geneva, check your knowledge of the municipal, heritage or co-ownership constraints which may affect your building. Ask for a precise perimeter for the study, installation, electricity and procedures. Local references, models, guarantees and after-sales service times must be compared to a second equivalent offer.

Buyer reference

In the canton of Vaud, ask Solacem for a study based on a visit to the roof and the consumption profile. The quote should name the components, electrical work, procedures and exclusions. Check nearby references, schedule, labor guarantees and post-commissioning monitoring conditions.

Buyer reference

For a Valais project, ask how photovoltaic installation relates to roofing technology and electrical liability. Compare residential or agricultural references close to your case, then check structure, wiring, connection, guarantees and schedule. The person responsible for final inspection and after-sales service must be clearly designated.