Solar panels in Bienne

Looking for solar panels in Bienne means looking at a city stretched between the lake and the foot of the Jura, with roofs that differ greatly from one neighbourhood to another. A solar installation does not look the same on an old town house, on a rental apartment building in the centre or on a villa on the slopes. This page explains what these differences change for your project, from the request to the comparison of offers.

Solar panels in Bienne: photovoltaic or thermal collectors

Two technologies share the same everyday name. Photovoltaic panels turn light into electricity, which you either use on site or feed back into the grid. Thermal collectors, on the other hand, heat water, used for showers, the kitchen or, depending on the setup, heating.

In Bienne, most requests concern photovoltaics, but thermal still makes sense in a villa or small building where hot water is costly to replace. If you are also planning to change your heating system, see the page on heat pumps in Bienne: the two projects are best considered together, since the electricity produced on the roof can power the pump.

Bienne’s roofs and what they require

Bienne does not have a single type of building, and that is what makes each project particular.

• The old town: old houses, often with tightly packed roofs, sometimes covered with old tiles, visible from the street or from the heights. This is where the question of protection arises first.
• The apartment-building neighbourhoods: larger roofs, sometimes flat, where a layout in inclined rows is possible. Ownership is often shared, which complicates the decision.
• The villas on the slopes towards Evilard and Macolin: pitched roofs, well exposed in some cases, with access that is more or less easy depending on the street and the slope of the plot.

A serious tradesperson starts by looking at your roof: orientation, pitch, shadows cast by a tree or neighbouring building, condition of the covering. If the roof has to be redone in the next few years, it is better to discuss it before the panels go up, rather than removing them afterwards.

Sunshine, lake and snow: Bienne’s climate for solar

The city is open towards the lake but backed by the Jura. The lakeside is a rather open setting; the slopes depend on orientation and on the shade cast by the terrain or vegetation. A slope facing the lake is not a slope facing the forest: ask for a production estimate that takes your location into account, not a general average.

Another point: winters here are colder than on the Lake Geneva arc. Going up towards Evilard and Macolin, snow can stay longer on a roof. This does not make solar impossible, but it needs to be planned for: choice of tilt, fixings suited to snow loads, and possibly snow guards to stop a sheet sliding onto a terrace or a walkway. State the altitude and exposure of your building when making your request; the tradesperson will take it into account in their offer.

Notification, permit and protected buildings in Bienne

The federal Spatial Planning Act (Art. 18a LAT) sets out a simple principle: a solar installation sufficiently well adapted to a roof, in a building zone or an agricultural zone, generally requires only a notification, not a permit. The exception covers cultural heritage buildings and protected sites.

For Bienne, this gives a fairly clear split:

1. A villa or an ordinary building in a residential neighbourhood generally falls under notification.
2. A building in the old town, or anything classed as cultural heritage or located in a protected site, may require a full permit.

In the canton of Bern, a building permit is issued by the municipality or by the prefecture, depending on the project. Energy matters, including the cantonal subsidy programme, fall under the cantonal office for the environment and energy. Do not assume the answer: ask the municipality whether your property is affected, and note the name of the person or department who replies. As Bienne is officially bilingual, you can deal with the administration in French or German, and some documents may exist in both languages.

Financial support follows the same cautious logic. A one-off federal payment exists for photovoltaics, managed by Pronovo, and cantonal or municipal subsidies may be available. Their conditions change and some applications must be made before the work: consult the official sources before ordering, rather than afterwards.

Tenant, owner, co-ownership: who decides in Bienne

In a city where many homes are rented, the question of consent is as important as the roof.

• Villa owner: you decide, within the building rules.
• Co-owner: an installation on the shared roof goes through the community, according to its regulations and the decisions of the assembly. Allow time to discuss it.
• Tenant: the landlord’s consent is essential, and it is better to obtain it in writing before asking for quotes.

One point to clarify from the start: who benefits from the electricity produced? In a building, sharing production between several homes raises questions about allocation and meters. Put them to the tradesperson at the first visit.

Preparing your request and comparing solar panel quotes in Bienne

The more precise your request, the more comparable the offers you receive. Describe:

• the type of building (villa, apartment building, old town) and its address in Bienne;
• the roof: shape, material, pitch, condition, any shade;
• your use: producing electricity, hot water, or both;
• your usual consumption and your current heating system;
• your status (owner, co-owner, tenant) and the state of the consent required.

A good quote details the equipment (panels, inverter, fixings), the installation, the connection, the formalities handled and what remains at your expense. It states what happens if the roof needs repair. The cost varies mainly with the surface area, the complexity of the roof, access to the site, the need for scaffolding and the type of installation chosen. It therefore only makes sense once the roof has been examined on site.

Compare at least two or three offers on the same basis, without stopping at the amount alone: look at what is included, who will oversee the work, and how the formalities are handled. You can request a quote, free and without obligation: your request is passed to tradespeople and firms in the region, who will get back to you.

For your other home projects in Bienne

If you have a solar project, other work probably arises at the same time. A roof or facade project lends itself well to coordination.

• The trade page: solar panels
• The city page: work in Bienne
• The canton page: canton of Bern
• Other work in the municipality: windows and double glazing in Bienne, heat pumps in Bienne, kitchen renovation in Bienne