The 2027 finance bill, introduced on October 1 in the Council of Ministers, proposes to re-examine solar energy contracts signed between 2006 and 2012. These contracts, which currently account for 20 percent of renewable energy subsidies, provide support for only 5 percent of the total installed solar power, according to Maud Bregeon, deputy minister for Energy. The government plans to reduce some costs and possibly end purchase obligation contracts with EDF, a major electricity company, favoring large power plants over smaller installations. Private individuals who installed solar panels during that period will be exempt from these changes. However, as these contracts are due to expire, some solar panel owners could face financial losses. A study published in the Journal of Public Economics on July 30 suggests that households with rooftop solar panels can influence their neighbors, even those as close as 100 meters, to install solar panels themselves, switch more often to electric vehicles, and use less electricity overall. The research, led by Patrick Bigler of the University of Lausanne and Benedikt Janzen of the University of Passau, analyzed data from 260,000 households in the Swiss canton of Bern between 2008 and 2019. The findings highlight how individual actions in energy use can have broader social and environmental impacts. In a personal account, Justine Pérou described driving a Kia EV5 for 2,500 kilometers across France, traveling from Paris to Montpellier via Poitiers, Sarlat, and Rocamadour. She noted that the vehicle had nearly 500 kilometers of range on a battery charged to over 90 percent. Pérou described the journey as almost stress-free, providing detailed insights into the charging process and her overall experience with the electric vehicle. In the United States, Donald Trump issued a decree on October 5 that allows all Americans to use red diesel, a type of cheaper, dyed diesel typically reserved for tractors and construction equipment. This move temporarily removes the federal tax of 24 cents per gallon without requiring approval from Congress, just weeks before the mid-term elections. Farmers, who already use untaxed red diesel, will not notice any change. During the week of September 21, the average price for road diesel was 6.529 dollars per gallon, equivalent to slightly more than 1.50 euros per liter, according to the Energy Information Administration.