IBM develops promising contender for cheaper solar cells

(PhysOrg.com) -- Solar cells could make fossil fuels virtually redundant if they were cheaper, but their use of rare elements and complex manufacturing processes makes them expensive. Now IBM Research has developed a prototype ...

'Solar trees' sprout up in California county's parking lots

The frustrating search for a shady spot to park is about to get easier. But the new trees being planted at nine big parking lots in the San Jose, Calif., area aren't leafy green saplings, they're big silver specimens with ...

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