General Electric to change from silicon solar cells to thin - film material . GE says change has the right production costs and right efficiency target . that 's what the customer wants . Thin - film solar cell material has lowest cost per watt , GE says . GE is developing technology to replace the solar cell material .
General Electric to change from silicon solar cells to thin - film material . GE says change has the right production costs and right efficiency target . Thin - film solar cell material has lowest cost per watt , GE says . GE is developing technology to replace the solar cell material .