Chris Rivest,28: Printing cheaper solar cells

摘要

The lowest-cost solar panels on the market are made using thin-film solar cells that cost about 80 cents per watt of electricity they produce; costs for other types of cells can be as high as $2 per watt. Those prices are too high if solar power is to displace coal and natural gas. But Chris Rivest has a plan to reduce the price of solar cells to well under 50 cents per watt.