Use this Web service documentation to access and use energy data via application programming interfaces (APIs) in these renewable energy categories. You'll need a key to use these APIs. Sign up for an API key.
Services related to energy efficiency and the use of renewable technologies in residential and commercial buildings.
Services associated with electricity costs, generation, transmission, delivery, and monitoring.
Access data and analysis services that provide access to solar resource data and NREL models.
Use this Web service documentation to access data about alternative transportation technologies.