Transphorm's gallium nitride semiconductors could be used to make operating photovoltaic panels, like these on the roof of the Research Support Facility, motor drives and transistors more energy efficient. | Photo courtesy of National Renewable Energy Laboratory.

Transphorm's gallium nitride semiconductors could be used to make operating photovoltaic panels, like these on the roof of the Research Support Facility, motor drives and transistors more energy efficient. | Photo courtesy of National Renewable Energy Laboratory.

Solar Storm Closely Watched Worldwide
While this week's solar storm captures the interest of scientists, researchers and people around the world, the Energy Department works with others to monitor the storm's potential impact on the nation's electrical grid. | Image credit: NOAA.

Monitoring the impact of this week's solar storm to the nation’s electric grid.

More Than 350 Now at Work Building CA Valley Solar Plant

Progress on the California Valley Solar Ranch is in full swing as 350 skilled professionals work to construct the 250 MW solar facility.

Transphorm Takes Energy Efficiency to a New Level
Transphorm's gallium nitride semiconductors could be used to make operating photovoltaic panels, like these on the roof of the Research Support Facility, motor drives and transistors more energy efficient. | Photo courtesy of National Renewable Energy Laboratory.

Transphorm, a startup partially funded by ARPA-E, develops Gallium nitride (GaN) semiconductors that could be used to make cost-effective, high-performance power converters for electric motor drives and components of solar panels and electric vehicles.