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January 2021
After Four Decades of Photovoltaic Research, NREL Is Just Getting Started
In the 43 years since, the Solar Energy Research Institute—now known as NREL—has been a driving force in the development of solar photovoltaic (PV) energy. A new video shows why NREL researchers envision a future where PV is everywhere.
Solar Prize Marks Milestone with Round 3 Winner and Round 4 Semifinalist Announcements
The sun has set on another round of the American-Made Solar Prize, awarding two new solar startups for their innovations.
December 2020
Top 20 NREL Stories of 2020
NREL researchers and staff reached countless goals and achieved numerous successes in science, partnerships, and technology commercialization in 2020, from breaking world records to launching new initiatives. Here are just a few of the highlights.
Quantum Wells Enable Record-Efficiency Two-Junction Solar Cell
Researchers from NREL and the University of New South Wales achieved a new world-record efficiency for two-junction solar cells, creating a cell with two light-absorbing layers that converts 32.9% of sunlight into electricity.
First Solar's Photovoltaic Technology Completes 25 Years of Testing at NREL
Determining how many years a solar panel will last can take, well, years. Intended to function for 25 years or more, solar panels must be made to withstand the elements. In some cases, panels continue working well after their planned operational lifetime. Nowhere is this more evident than on the sunny hillside where NREL operates the Outdoor Test Facility.
NREL Research Takes Safety Issues into Account for Perovskite Production
While research continues to move perovskite solar technology toward commercialization, scientists at NREL are investigating how to manufacture them with human health in mind.
October 2020
News Release: Colorful Perovskites: NREL Advances Thermochromic Window Technologies
Scientists at NREL report a breakthrough in developing a next-generation thermochromic window that not only reduces the need for air conditioning but simultaneously generates electricity.
News Release: R&D 100 Awards Honor Six NREL Innovations
R&D World magazine today presented NREL with four of its annual R&D 100 Awards for research innovations. In addition to the R&D 100 winners, two additional NREL technologies were given Special Recognition Awards.
Apex Flex: An All-Perovskite Tandem Technology Suitable for Solar-Powered Vehicles
NREL's new perovskite material, marketed as Apex Flex, broke through two design barriers to arrive at a solar cell that is flexible and stable enough for car-top application at a cost 200 times less than flexible PV technologies of similar specific power.
July 2020
News Release: NREL Research Points to Strategies for Recycling of Solar Panels
Due to rapid increase of PV installations over the past decade, there is expected to be an explosion of retired PV modules by 2050. NREL scientists propose research and development to advance processes for managing that waste and establishing a PV circular economy.
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Last Updated May 5, 2025