On the outer limits of solar cell development, a new record efficiency of 39.5 percent has been achieved. III-V cell technology is not available for mass-market use yet, the primary market will be in space. The NRLE is working on bringing the manufacturing costs down. Hopefully, sooner than later. Panels with this degree of efficiency would be a boon to more northern latitudes.
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Researchers create highest efficiency 1-sun solar cell
Researchers at the U.S. Department of Energy's National Renewable Energy Laboratory (NREL) created a solar cell with a record 39.5% efficiency under 1-sun global illumination. This is the highest efficiency solar cell of any type, measured using standard 1-sun conditions.
