The installation of solar panels along highways and rails would produce more than 100 GWh of electricity per year. The Federal Council decided on Wednesday to adapt the legislation to better exploit the potential.
Switzerland wants to produce 34 TWh of electricity from photovoltaics per year by 2050. The potential of the roofs is estimated at 50 TWh, but part of it cannot be exploited for various reasons. In this context, the use of noise barriers along traffic axes is of interest, points out a report drawn up in response to a postulate by Bruno Storni (PS / TI).
Also read: Between nuclear and solar, the hearts of experts balance
Solar panels installed near national roads would produce 55 GWh, and 46 GWh next to railways. In total, this would correspond to the annual electricity consumption of approximately 22,000 households. However, the exploitable potential of these noise barriers only represents 0.15% of the national potential of roofs and facades, note the authors of the report.
The installation of such panels currently depends on investment costs, which are higher than that of rooftop installations, and on the possibility of using the electricity produced for own consumption. After adopting the report, the government decided to change the legislation to better exploit the potential.
In future, the Federal Roads Office should be able to make available areas available free of charge to third parties which it cannot use itself. Currently, remuneration is requested.
Read also: In Fully, the highway becomes engaged to the sun
The possibility of financing photovoltaic installations for the production of traction energy by the Railway Infrastructure Fund should also be studied. The Federal Department of the Environment, Transport, Energy and Communications should take care of the preparations.