"Intel on Thursday showed an experimental low-power processor the size of a postage stamp that could run PCs on solar power. The concept processor, code-named Claremont, can run light workloads on solar power by dropping energy consumption to under 10 milliwatts, said Justin Rattner, chief technology officer at Intel, during a keynote address at the Intel Developer Forum in San Francisco. That is low enough to keep a chip running on a solar cell the size of a stamp."