CaliSolar raises over $100M for planned “dirty” silicon cell factory
There’s a shortage of the pure silicon used to make solar cells, but Sunnyvale, Calif-based CaliSolar doesn’t care. There’s plenty of the less refined stuff — what’s called metallurgical grade silicon — that the company says it can use in its own proprietary cells to generate electricity.
Using metallurgical silicon has more than one advantage. Not only will CaliSolar be able to get around the supply bottlenecks that every traditional photovoltaics manufacturer in the world is… Continue Reading