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An underground “heat nest” design avoids the need to fracture the rock.
A layer of optical fiber bristles doubles the performance of organic solar cells in tests.
The DOE’s backing revives a pioneering clean-coal project.
European researchers have built prototypes that combine plastic solar cells with ultrathin, flexible batteries. But don’t throw away your battery recharger just yet.
Self-organizing equipment could cut energy bills.
The device uses thermoacoustics for greater efficiency.
Abound Solar says it has a simpler process to make cadmium-telluride solar cells.
New lead-acid batteries could achieve high performance.
A secret, fast-charging, powerful battery.
The company thinks adding solar-thermal technology to its natural-gas plants will make them run more cheaply and efficiently