100 Electrification Zones: Moving Toward Implementation?

As part of the electrification plan announced last April, the government launched the initiative "100 Electrification Regions"[1].

The goal? To support 100 municipalities or intermunicipal organizations from 2026 to 2030 to accelerate the transition away from fossil fuels.

France needs to create new momentum because the share of electricity in the national energy mix has remained stable over the past decade, even though it is a locally produced, low-carbon energy source.

The initiative has three major merits:

• Focusing on the core components of the carbon footprint of households and communities: transportation and building heating, which account for approximately 50% of energy use in France[2].
• Refocus the operational implementation of decarbonization plans at the local level. The multi-layered local structure of strategic plans (PPE, SRADDET, PCAET, PADD[3]) remains highly theoretical. Here, the local government, supported by the prefect and ADEME[4], is placed at the center of the action by formalizing its commitments.
• Moving forward with 100 areas that are fairly representative of the country as a whole[5] to gather enough feedback to ultimately scale up the approach.

What are the benefits?

Let's estimate the order of magnitude by assuming an average of 100 regions, each with 50,000 residents. 95% of households have internal-combustion vehicles, and 45% have a gas or oil-fired boiler.[6]. If they all switched to low-carbon transportation (electric cars, bicycles, public transit) and low-carbon heating (primarily heat pumps), then:

• At the household level, the annual energy bill would drop on average from €2,000 to €500 for fuel, and from €1,300 to €750 for heating.[7]
• For France, a reduction in imports of approximately 1 billion euros and a reduction in emissions of 5 MtCO2e[8]

Even if this remains a theoretical possibility, the economic and decarbonization impact is far from negligible, especially when compared to the 70 billion euro trade deficit projected for 2024 and the annual emissions reduction targets of 70 MtCO2e between 2026 and 2030[9].

What challenges?

Heat pumps and electric cars have payback periods of less than 5–10 years, but their high purchase price raises the the issue of funding in a context where local government budgets are tight and public financial support is limited. Proposing innovative measures such as the leasing or even the Heat as a Service would help us move forward. Furthermore, other challenges arise such as the adoption of best practices, technical constraints related to buildings, or charging infrastructure.

All-electric systems have the advantage of simplicity in a context where France produces an abundance of low-carbon electricity. Nevertheless, as the electricity mix becomes increasingly renewable, we must reexamine how to make demand more flexible and encourage consumption during the middle of the day when solar power is being generated. More broadly, an all-electric approach overshadows other solutions such as geothermal energy, district heating networks, bicycles, public transportation, hybrid vehicles, and so on. Ensuring that the accelerated pace of electrification does not undermine planning for a multi-energy and multimodal transition is essential to achieving the optimal technical and economic balance and avoiding putting all one’s eggs in one basket. As a reminder, the multi-year energy plan aims to increase the share of electricity from 27% to 38% between 2023 and 2035,[10] increase the share of other low-carbon energy sources from 15% to 32% while reducing energy consumption by approximately 25%[11]. Electrification is therefore just one of the three main areas of focus.

Finally, electrifying the heating system poses a A critical question about the future of gas distribution networks. In fact, replacing gas boilers will lead to suboptimal conditions for the network, such as maintaining a pipeline on a street solely for a single household. As a result, the network’s fixed costs are already being spread across fewer and fewer users, who are seeing their bills rise. As a result, distribution network rates rose by 28% in 2024 and by 6% in 2025.[12]. There is an urgent need to coordinate the decommissioning of a portion of the gas network, neighborhood by neighborhood.

Local Governments: What if Carbone 4 helped you meet the challenge?

• What multi-energy strategy?, by leveraging electrification, to make your region more energy-independent?
• How to Prioritize decarbonization efforts, given their costs and their duration deployment?
• How Get trained to lead change within existing organizations?

With 20 years of experience in these areas, Carbone 4 can help you save valuable time so you can take action quickly.