Increase the use of renewable energies

“Enerlis’ first back-to-school university, social landlords on the front line of the energy transition”, the day of webinars organized by Enerlis was held on September 22, 2020.

Enerlis mobilized its network and its teams around an event of reflection and debate on the current news, namely economic recovery and the energy transition. In total, 22 speakers exchanged and gave their point of view around 4 major themes: contractualization, financing, renewable energies and the latest innovations in the services of social landlords.

WORKSHOP 3 REPORT:

Increase the use of renewable energies: solar energy for collective self-consumption, hydrogen, etc.

This green recovery certainly involves the energy renovation of buildings but also through the implementation of renewable energies. Social landlords must take a further step in energy performance, by increasing the use of renewable energies.

Marie-Noëlle Lienemann , president of Coop'HLM, believes that “the HLM movement must be able to take an additional step in energy performance, by increasing the use of renewable energies. The question of renewable energies is still on the fringes of our solutions. The first reason is that, for a while, many experiments did not work, notably geothermal experiments. The 2nd is that it is necessary to design a global renewable energy strategy.”

To do this, all opportunities for developing renewable energy solutions in residences should be identified in landlords' asset plans and this approach should be made automatic, in order to be able to evaluate the most relevant solutions and be proactive.
“The subject is to access carbon-free energy at the lowest possible price. This requires a constant link with the territories, which guarantees us sustainable and financially affordable access to resources,” she explains.

Geothermal energy, hydrogen heating, solar energy or even collective self-consumption, ... so many processes and solutions which can sustainably place the actors of the HLM world in the territorial trajectories, in which they are driving forces or accompanying, but in any case actors of the transition.
Finally, she believes that “financing problems are not the first obstacle to the mass use of renewable energy by social landlords. First of all, there is a professional obstacle, a cultural obstacle, the absence of convergent mobilization of actors. »

Geothermal energy, hydrogen heating, solar energy or even collective self-consumption, ... so many processes and solutions which can sustainably place the actors of the HLM world in the territorial trajectories, in which they are driving forces or accompanying, but in any case actors of the transition.
Finally, she believes that “financing problems are not the first obstacle to the mass use of renewable energy by social landlords. First of all, there is a professional obstacle, a cultural obstacle, the absence of convergent mobilization of actors. »

Jean-Philippe Gendarme discusses the start of experiments with hydrogen in heating: “In a context of accelerated global warming, the carbon-free and highly energetic nature of hydrogen has an essential role in supplying uses, and in particular that of heating tertiary and residential buildings. It also has a role to play in stabilizing the electricity network, thanks to the storage of peaks in renewable electricity production. New solutions are appearing in the field of heating, such as compensation boilers or fuel cells. »

Christophe Courtois , general director of Tecsol, explains what collective self-consumption is… “In social housing, opportunities appear to exchange solar energy within a building (restricted collective self-consumption) or between several buildings ( extended collective self-consumption).
» “The sharing of locally produced electricity must be carried out within a group, an organizing legal entity, and passes through the public electricity network. »

His collaborator Alexandra Battle provides legal insight on the subject: “The Pacte law expanded the scope of a community self-consumption project to several consumption stations, but only on the low voltage network, and added a distance criterion geographical”. And “The Energy and Climate law makes a distinction between restricted and extended collective self-consumption. On restricted collective self-consumption, participants can be connected to high voltage. For extended collective self-consumption, the scope and cumulative power were set by decree. »

He mentions the Sol Solidaire initiative, a non-profit association of which Tecsol is one of the main sponsors, supported by Enerlis: this association aims to direct private funds towards the financing of solar electricity production projects in the sector. social residential. Clearly, its objective is to provide free solar kilowatt hours for low-income households, in order to increase their remaining living expenses.

Christophe Ribault , technical director of Pays d'Aix Habitat and Eric Martin , Solar Business Manager Enerlis, finally present together a photovoltaic shade project developed together in La Maillane: Enerlis set up and financed a 100 kWp shade house and carried out insulation work, making it possible to finance a second, smaller shade house.
“Solar self-consumption, as we currently practice it in the Pays d'Aix Habitat Métropole park, supplies the common areas with 20 entrances for 220 homes, so we are the only end customer. It's quite simple. We do not yet redistribute to tenants, but projects are underway to deploy charging stations in the park,” explains Christophe Ribault.

With nearly 300 participants, the webinar on Tuesday September 22, 2020 was a real success due to its usefulness, thanks to the quality of the speakers and the discussions with all the elected officials, managers and experts involved.