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Paris

Pilot Actions

Pilot Action 1 : Precise identification of solar potential and modelling tool

Background :
The limited development of solar facilities in Paris is partly due to the lack of information about the solar potential of Parisian buildings. It is also necessary to identify the technical solar potential of Parisian buildings roofs, considering parameters like geometry, orientation, tilt angle and shadows incidence.

Description :

PNG - 346.1 ko
Methodology for the identification of the solar potential : aereal view of example region in District 19 (Source : APUR-InterAtlas)

A modelling tool will be developed for the identification of the solar potential (PV or solar thermal) of the roofs of Paris complete building stock, by improving an existing model developed by APUR. The potential will be calculated by considering building parameters (geometry, orientation and tilt angle of roofs, shadows incidence) and the results will constitute a “solar land registry” followed by a reflection of Paris municipality about the use of roofs for solar energy and/or green roof. It will be shown in an interactive internet-based map that will be initially available for professionals and later on for all Parisian citizens.
A further study will be implemented on the social housing stock to define and set priorities for the installation of solar thermal systems where the opportunity for such systems has been demonstrated.
The information needed for this Pilot Action are detailed data about Parisian elevation (Digital Terrain and Digital Elevation Models), as well as Geocoded files of social landlords. Several software tools will be also used, such as Solarin (Shading simulation), PHPP (Passive house planning tool), Dämmwerk (EnEV 2009), T-Sol and PV-Sol.

PNG - 258 ko
Methodology for the identification of the solar potential : results (Source : APUR-InterAtlas)

Pilot Action 2 : Monitoring tool

Background :
Currently it is dificult to obtain precise information about the number of solar facilities and their location, due to the fact that the information can be disseminated in several organisms. A tool collecting existing information is considered very useful to collect and monitor solar facilities and adapt future actions in favour of solar development.

Description :
Development of a monitoring tool of solar facilities in order to improve the existing knowledge, follow the implementation of new installations and adapt future actions oriented to promote solar developments. The future Parisian Climate Protection Agency will use the tool, collect and monitor the information about solar facilities. The information needed for developing this Pilot Action are existing tools with information about solar facilities already in operation (building permits, statements to exploit PV systems, certificates for electricity production, grid-connection contracts, purchase agreements, etc.)

Pilot Action 3 : Setting of requirements in local plans

Background :
At present, local authorities in France are not empowered to make dispositions on their territory with legal binding ahead of national regulations. That’s why in France, a mayor has no authority to impose a solar code or plan. It is expected that under the framework of the new Environment Law adopted in May 2010 municipalities will have the opportunity to incorporate solar requirements in local urban planning legal documents.

Description :
To develop the use of solar energy in the processes of urban planning and urban development it is necessary to work on local documents, adapting them to incorporate special requirements such as solar. To anticipate the possibility of including solar requirements in urban planning documents a survey will be done to identify the changes and adaptations needed on the Local Urban Planning Plan (PLU) in order to incorporate solar requirements and therefore facilitate solar systems implementation.
The information needed for developing this Pilot Action is the content of the expected National Decree (end of 2010) that will oblige local urban planning plans to be in accordance with the future Paris Climate Protection Plan.

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