Trump has choked off Cuba’s oil supply. China is stepping in with solar.

China is helping Cuba race to capture renewable solar energy as the United States imposes an effective oil blockade on the Caribbean island, creating its worst energy crisis in decades.

As the Trump administration steps back from U.S. climate commitments and reinvests in fossil fuels, China is flexing its dominance in renewable energy, using offers of equipment, expertise and financing as geopolitical levers.