Kraftwerk Berlin, the venue for the Energy Tech Summit with Octopus Energy, offered delegates a powerful lesson from history. Built by the East German government in 1961, the same year construction on the Berlin wall began, the vast turbine hall was hastily assembled to manage a crisis—the wall forced the Communist east and capitalist west to build grids that were not connected. Obsolete at reunification in 1989, it was a stark warning that walls and divisions are a choice the world can’t afford to make when faced with the urgent need to transition from fossil fuels to renewables.
Photograph: Craig Gibson
“The biggest risk for Europeans,” Martin