Hello Watt
, France Energy Advisor Energy saving studies and advice
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Study / Review / Report | Middle East crisis: gas bills expected to rise by 25 to 50%, which regions are most affected? The conflict in the Middle East poses a direct threat to French energy bills. In early March, gas prices on European markets jumped by 70%, with peaks reaching 130%. This unprecedented volatility signals lasting pressure on the gas bills of 10,3 million French households. -
Sustainable Development | MaPrimeRénov': turning your back on wall insulation is a major mistake Following the suspension of MaPrimeRénov' Large-scale Renovation during the summer and the tightening of eligibility conditions for its reopening on September 30, it is now the MaPrimeRénov' gesture-based route (financing a single job) which is now subject to new restrictions, taking the sector by surprise. -
Study / Review / Report | Boiler-fired housing alert: which departments will be most at risk in 2050? With the increasing number of heat waves, summer energy poverty is once again at the forefront. The new study by the Housing Foundation provides a striking demonstration: the summer comfort crisis is now a public health issue that requires rapid and structured responses. -
Sustainable Development | DPE: towards a reform to finally integrate summer comfort Faced with the increase in episodes of extreme heat, the Minister of Housing, Valérie Létard, announced that she wanted to develop the energy performance diagnosis (DPE) in order to better integrate the notion of summer comfort. This is a major climate issue for nearly 55% of French people who say they feel too hot at home as soon as the temperatures rise outside[1]. -
Study / Review / Report | The real numbers on the profitability of solar and battery installations Since March 28, 2025, subsidies for solar installations have been reduced, but should you give up investing? Hello Watt conducted an in-depth study on the profitability of different solar installations in three typical household profiles. -
Study / Review / Report | The price of electricity will increase on February 1 from 8,6% to 9,8%, an increase of 38% in one year The Government has just announced a new increase in the price of electricity, of +8,6% on the base options and +9,8% on the Peak Hours Off-Hours (HPHC) options, due to the increase in the TICFE, which goes from €1/MWh to €21/MWh, gradually reintroduced after it had been suspended as part of the tariff shield. -
Study / Review / Report | The heat pump is indeed the most economical heating according to a study Monday September 25, Emmanuel Macron presented the broad outlines of French-style ecological planning. Among the announcements, the observation that the heat pump (PAC) is a solution for the future, the symbol of an intelligent energy transition, heating that is both ecological and economical. With the ambition to produce; million heat pumps in France by 2027, and to train 30.000 installers. -
Digital Tools | Hello Watt launches an interactive map to find his ECD While the energy performance diagnosis (EPD) has been given major importance with the Climate and Resilience Law, Hello Watt, the energy renovation service for individuals, is launching an interactive map allowing you to find, in a single click, the DPE of a dwelling from an address. -
Study / Review / Report | Redesign of MaPrimeRénov in 2024 and launch of a consultation on the end of gas boilers: Hello Watt reacts to announcements A few days after the launch of a consultation on the ban on the installation of gas boilers, the government has just announced a restructuring of MPR and an additional budget of €300 million for the replacement of fossil boilers (fuel oil and gas) in 2024, for the most modest households.
