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NREL Scientists Outline Photovoltaic Potential

Photonics.com
May 2017
GOLDEN, Colo., May 9, 2017 — Scientists from the U.S. Department of Energy's National Renewable Energy Laboratory (NREL), along with their counterparts from similar institutes in Japan and Germany and researchers at universities and industry, outlined a potential worldwide pathway to produce a significant portion of the world's electricity from solar power in a paper in Science.

The paper, “Terawatt-Scale Photovoltaics: Trajectories and Challenges,” focuses on the recent trajectory of photovoltaics (PV) in the wake of a solar energy conference. Fifty-seven experts met in Germany in March 2016 for a gathering of the Global Alliance of Solar Energy Research Institutes (GA-SERI), where they discussed what policy initiatives and technology advances are needed to support significant expansion of solar power over the next couple of decades.

"When we came together, there was a consensus that the global PV industry is on a clear trajectory to reach the multi-terawatt scale over the next decade," said lead author Nancy Haegel, director of NREL's Materials Science Center. "However, reaching the full potential for PV technology in the global energy economy will require continued advances in science and technology. Bringing the global research community together to solve challenges related to realizing this goal is a key step in that direction."

The GA-SERI paper discusses a realistic trajectory to install 5 to 10 TW of PV capacity by 2030. Reaching that figure should be achievable through continued technology improvements and cost decreases, as well as the continuation of incentive programs to defray upfront costs of PV systems, according to the paper, which was also co-authored by David Feldman, Robert Margolis, William Tumas, Gregory Wilson, Michael Woodhouse and Sarah Kurtz of NREL.

GA-SERI's experts predict 5 to 10 TW of PV capacity could be in place by 2030 if there is a continued reduction in the cost of PV while the performance of solar modules are improved; cost and time requirements are lowered to expand manufacturing and installation capacity; more flexible grids are able to handle high levels of PV through increased load shifting, energy storage or transmission; there is an increased demand for electricity by using more for transportation and heating or cooling; and continued progress is made in the storage of energy generated by solar power.

The Fraunhofer Institute for Solar Energy, the National Institute of Advanced Industrial Science and Technology and the National Renewable Energy Laboratory are the member institutes of GA-SERI, which was founded in 2012. NREL is the U.S. Department of Energy's primary national laboratory for renewable energy and energy efficiency research and development.

technologyGA-SERIGlobal Alliance of Solar Energy Research InstitutesU.S. Department of EnergyNational Renewable Energy LaboratoryTerawatt-Scale Photovoltaics: Trajectories and ChallengesphotovoltaicsFraunhofer Institute for Solar EnergyNational Institute of Advanced Industrial Science and TechnologyAmericasEuropeAsia-PacificBusiness

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