In the face of a prolonged US energy blockade of Cuba, solar panels from China have come to the rescue and provided a model of independence from fossil fuels that is resonating globally amid what is being called the worst energy crisis in history. Within the 12 months through February, solar’s share of national power generation in Cuba increased from 6 per cent to more than 20 per cent, according to Microgrid Media, a California-based publication that tracks global renewable energy capacity. “By...