The French government is accelerating its energy transition plans, aiming to significantly increase heat pump installations and promote cleaner vehicles, underscoring the need for these changes amidst international conflicts and for strengthening national sovereignty. However, concerns persist that climate action might be a financial burden, perceived as a luxury or a punitive policy disproportionately affecting the middle class. A new report from the Institute for Climate Economics (I4CE), updating its "Observatory of Access to the Energy Transition," analyzes the economic impacts of low-carbon solutions for housing and mobility. The study examines two representative families—one lower-middle-class rural and one upper-middle-class suburban—to assess the financial viability and potential savings associated with adopting these changes.