To guide its citizens in installing solar panels on their roofs, the community of municipalities of Astarac Arros in Gascony has set up a solar land registry.
Helping citizens in their energy transition: this is the idea behind the initiative proposed by the community of municipalities Astarac Arros in Gascony. Recently, the latter offers its solar cadastre. A free tool accessible to everyone online, which allows you to know the solar potential of your roof. Just like a classic land registry that defines all the land properties of a municipality, the solar land registry works according to the same principle.
For that of the comcom Astarac Arros in Gascogne, the plan of the 37 municipalities is provided detailing the data on the insolation of the roofs. It thus helps to identify very precisely the places on its property that are best exposed to solar radiation. It will allow each inhabitant to obtain a first level of information on the interest or otherwise of installing solar thermal or photovoltaic panels on their roof.
A real tool to carry out a project
The process is simple. All you have to do is access the land registry and select your municipality. The textures are delimited and a color code allows you to orient yourself. The green areas indicate, for example, the areas with the best potential for installing solar panels. The surfaces in yellow are those with medium potential and finally those in red have a less suitable solar potential.
By clicking on its roof, more information is displayed on the screen. Useful surface, theoretical installable power, theoretical annual production: many elements that can guide the owners’ choice are within the user’s reach. In addition to providing information on the insolation rate or even on the usable surface, the site offers a multitude of tips to equip: what type of installations, what are the steps to follow or even tips to decipher an installer’s quote.
If the site does not provide information on the price of the system, which is difficult to estimate, it still guides users towards the aid made available by the State and the Region as well as the support offered by the department.
What limits to the solar cadastre?
Solar data on public roofs can be very useful for starting a project. However, some elements may be missing to complete a feasibility study. Slope of the roof, solidity of the latter or taking into account the surrounding vegetation: it is advisable to integrate an expert opinion carried out by a professional into the approach.