A bitter row has pitched the energy regulator and Nevada's monopoly energy provider against one of Silicon Valley's boldest entrepreneurs.
Silicon carbide can help convert direct current into alternating current with less energy consumption than existing inverters, improving the economics of solar power.
South Australia has once again teamed up with Tesla for a solution to their energy needs, this time to create a network of houses installed with solar power panels and batteries to create a renewable power grid.
Solar power is taking root.