The UNLV National Supercomputing Institute (formally the National Supercomputing Center For Energy and the Environment) is a full-service supercomputing facility with on-site and off-site user training, national network accessibility and a mission for excellence in education and research in supercomputing and its applications.

NSI provides supercomputing training and services to academic and research institutions, government and private industry for research and development related to energy, the environment, medical informatics, and health care delivery.