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  1. Research
  2. Sustainable Energy
  3. Renewable Energy
  4. Solar Energy

Solar Energy

Brightening the future
by expanding solar capabilities

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Solar energy is the fastest growing energy source, though it currently provides less than 1.5 percent of the nation’s electricity. The U.S. Department of Energy’s Solar Energy Technologies Office (SETO) hopes to greatly increase this figure, but this can only happen if solar electricity reaches a price point competitive with other sources. 

In helping SETO achieve its goal, PNNL works extensively in the field of solar energy and has developed technology at the forefront of reducing costs. Projects focused on thin film photovoltaics, thermal storage for concentrating solar power, and grid integration are ongoing as PNNL researchers look for more efficient technologies and methods to harness the power of the sun.  

A sparkling technology and more to come  

In 2014, PNNL scientists finished developing the Solar Thermal Advanced Reactor System (STARS). This system converts natural gas and sunlight into a more energy-rich fuel, called syngas, which power plants can burn to make electricity. STARS, which earned recognition from R&D Magazine and the Federal Laboratory Consortium, helps to make solar energy cost effective enough to meet SETO’s needs. In fact, for utility-scale solar, SETO reached its original cost goal of .06 per kilowatt hour three years early, in 2017. The new goal is .03 per kilowatt hour by 2030.  

Cost reductions alone, however, are not enough to broaden the use of solar. PNNL is actively improving solar-grid integration with new tools and planning methods to help manage solar variability. Two technologies are being tested for use at utilities and by power system operators. Meteorologists at PNNL are working on better short-term solar power forecasting methods. PNNL is also developing new methods of sizing and operating batteries to complement solar, and helping state regulators evaluate solar.  

Through such work, PNNL is making the future a little brighter by expanding the capabilities of solar energy. With continued efforts, solar energy will continue to gain traction as a viable and reliable source of energy for the broad spectrum of American energy needs.

Recent News

JUNE 2, 2022
Feature

Simulating the Role of Grid-Forming Inverters in the Future Electric Grid

Read
Renewable Energy interaction with grid forming inverter for everyday use in homes
MAY 26, 2021
News Release

On-Site Hydrogen Production Technology Accelerates to Market

Read
hydrogen generator in front of fueling station
MAY 25, 2021
Staff Accomplishment

Tom McDermott Named Power Distribution Award Winner

Read
Tom McDermott
SEE MORE RELATED NEWS

Related Divisions

Energy Processes & Materials Division
Electricity Infrastructure and Buildings Division

Research Topics

Renewable Energy Energy Efficiency Electric Grid Modernization Distribution Transmission

Contact

Tom McDermott
Solar Subsector Manager
thomas.mcdermott@pnnl.gov
(509) 375-4434

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