That Donald Trump is driving up sales of solar modules and electric cars is one of the more remarkable connections of the past few weeks, even if it is easily explained: the wholesale price of gas is around two thirds higher than before the start of the Iran war, and the price of oil is a good half higher. Fuel has also become significantly more expensive especially diesel. This is encouraging some consumers to look more closely at renewable energies again. Christian Lindner, as FDP Federal Finance Minister in 2022, called them “freedom energies”: solar energy, wind power and geothermal energy “free us from dependencies,” he said with a view to Russia’s war in Ukraine.