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Results for “Testbed”

Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

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At least 1,225 records · Page 68
All sourcesNASA NTRSDOE OSTI
DOE OSTI2019

Field Aging Testbed for Behind-the-Meter PV + Energy Storage

Small DC-coupled battery test systems are deployed at NREL to evaluate capacity fade models and report on performance parameters such as round-trip efficiency under indoor and outdoor deployment scenarios. Initial commercial battery products include LG Chem RESU Lithium-ion and Avalon vanadium-redox flow batteries. Adapting indoor lab-scale test methods to outdoor systems has challenges, including maintaining constant temperature and fully controlling batteries through standard discharge curves. Initial measurements show the Lithium Ion battery systems performing within expectation, near 85% round-trip efficiency. Initial lifetime modeling and measurements indicate battery capacity may degrade by 20%-35% over 10 years.

25 ENERGY STORAGE↗
DOE OSTI2019

Bifacial Tracking Testbed at NREL

Bifacial demonstration plant with 10 rows of single-axis trackers. Each row is independently monitored and grid tied. This project continues our work on bifacial photovoltaic modeling, field evaluation and standards development.

14 SOLAR ENERGY↗