solar

How solar panels and wind turbines work, why their costs fell about 90%, how fast they are spreading, and what storage and grids must still solve.

A photon from the sun hits silicon, kicks out an electron, and creates electricity. This simple fact is reshaping civilization.

Solar and wind output swings with the weather, but a grid must balance supply and demand every second. Here is what machine learning actually does for grid operators, which claims are documented, and where the limits are.