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In this artistic rendering of the two-dimensional perovskite PEPI in an optical cavity depicted by top and bottom mirrors, lead iodide layers (in metal and purple) are separated by organic phenyl-ethylammonium layers (grey) forming a two-dimensional structure that causes the material to be excitonic in nature. Two excitons depicted in green glow are avoiding interaction with each other due to the presence of the optical cavity. Image by Jao van de Lagemaat, NREL

Stronger Together: Coupling Excitons to Polaritons for Better Solar Cells & Higher Intensity LEDs

In solar cells and light-emitting diodes, maintaining the excited state kinetics of molecules against annihilation is a race against time. These systems need to strike a careful balance between different processes that lead to loss of energy and those that lead to the desired outcome. A major loss mechanism especially … [continued]

Deer graze under the PV array at NREL's National Wind Technology Center. Incorporating native vegetation under and around solar panels can create habitat for local wildlife and insects while improving soil conditions. Photo by Dennis Schroeder, NREL.

Making Hay (and Solar Power) While the Sun Shines

Farmworker Appreciation Day is a celebration of the men and women whose labor feeds America, sustains our global leadership in agricultural exports, and produces many of the fuels and materials that are driving our transition to a clean energy economy. At the Office of Energy Efficiency and Renewable Energy (EERE), … [continued]

Atlanta Motorsports Park partners with Hannah Solar to power the future; our newly installed solar panels are set to revolutionize our energy efficiency, reinforcing our commitment to sustainability and innovation in the world of motorsports. Image courtesy of Atlanta Motorsports Park (AMP).

Atlanta Motorsports Park Amps Up Its Dawsonville Track Campus With 358kW Solar Array

A large solar farm is coming to Atlanta Motorsports Park (AMP), a premier motorsports club in Dawsonville renowned for its F1-style road course and thrilling karting course. Located in Dawsonville, Ga., the AMP campus is adding solar power through an array of 747 panels, generating 480 watts per panel, for … [continued]

Staff from NREL and GRID Alternatives Colorado install rooftop solar panels during a volunteer event. Residential solar PV installations like these can benefit from NREL’s free SolarAPP+ automated permitting software. Photo by Joe DelNero, NREL.

How Much Money Can I Save With Solar Energy?

Lowering electricity bills is one of the main reasons why consumers may decide to install rooftop solar panels. Every household is different—from the size of the home, to the number of people living in it, to the electricity needs of those people, to where the buy their electricity—so calculating an … [continued]

Solar Partners Join Forces to Help Newborns & Mothers in Africa by Installing Solar Powered…

A solar alliance of LONGi, one of the world’s largest solar technology companies, and Senergia, a leading Swedish wholesaler of solar energy, teamed up to support the Non-profit “Project Vita” by donating a solar-powered freshwater system for a maternity clinic in the village of Linga Linga in Mozambique. After constructing … [continued]