U.S. investment in the energy transition was $378 billion, a 3.5 percent increase, according to the report. The biggest one, she said, is that energy transition technologies and businesses are more mature and less dependent on subsidies than they were in 2017. In 2025, spending on clean energy supply totaled $1.293 trillion, which exceeded the $1.191 trillion spent on fossil fuel supply. China led the world in energy transition investment with $800 billion, down 4 percent from the prior year. Inside Clean Energy is ICN’s weekly bulletin of news and analysis about the energy transition.