As part of its electrification plan for France, the government wants to lower the conversion coefficient of electricity into primary energy to 1.7 in the calculation of the DPE
There housing crisis and theban on renting thermal strainers lead to many contortions. As part of its plan to electrify the French economy, the government wants to lower the conversion coefficient of electricity into primary energy to 1.7after having already lowered it to 1.9 on January 1, 2026.
382,000 thermal strainers disappear
According to KRNO, this new value of the primary energy coefficient would bring 382,000 housing units out of thermal strainer status. Which, explains KRNO, cumulatively for three years would bring to 1.5 million housing units classified F or G according to their DPE initial, the number of thermal strainers erased. Let us recall in fact that the calculation of the DPE had been modified for small surface housing in July 2024, then primary energy conversion coefficient for electricity lowered on January 1 from 2.3 to 1.9, now this coefficient would drop from 1.9 to 1.7. All this to get around the ban on renting thermal strainers, in a context of shortage and housing crisis. These successive changes removed 1.5 million housing units from thermal strainer statusor approximately 37% of the total number of thermal strainers in the housing stock in France. Without work. One of the immediate consequences will be to wipe out many renovation projects at a time when renovation is in decline. KRNO estimates the amount of work that will disappear over the next three years at €77 billion.
And RE2020?
As we have already noticed, the coefficient of conversion of electricity into primary energy is also used for an RE2020 calculation. But, in this calculation, the coefficient is 2.3. Since January 1, 2026, we have therefore two values of the coefficient – 1.9 for the DPE, 2.3 for the RE2020 – and it seems that this must continue, since no mention is made of the RE2020. We still have to wait for the publication of a decree which will set the terms for the appearance of the coefficient at 1.7 and, in particular, the possibility of recalculate the DPE of buildings that have one.
Okay and otherwise, about the electrification plan : producing a million heat pumps per year in France in 2030 is not difficult. Selling them is another matter.
