States cut solar incentives as New York mandates zero-emission vehicles; Tesla faces federal investigation over self-driving systems.

Several states are removing incentives for selling rooftop solar power back to the grid, reducing net metering rates. This comes as advocates push for better reuse and recycling of the metals and materials that the first wave of solar panels are ending. A Wisconsin bill supporting third-party-owned community solar development has stalled again due to opposition from utilities, labor unions, and Democrats. The International Energy Agency predicts that fossil fuel demand will peak before 2030. Washington is considering linking its new carbon market with California’s, which would lower emission allowance prices. Tesla discloses that federal prosecutors are investigating the company for self-driving systems, vehicle range, and personnel matters. New York City passes a law requiring every city-owned vehicle to be zero-emission by 2038 and mandating that ride-share vehicles be electric or wheelchair accessible by 2030.