Documentation
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.
Buildings
Services related to energy efficiency and the use of renewable technologies in residential and commercial buildings.
Electricity
Services associated with electricity costs, generation, transmission, delivery, and monitoring.
Solar
Access data and analysis services that provide access to solar resource data and NREL models.
Technologies
Access information about energy technologies.
Transportation
Use this Web service documentation to access data about alternative transportation technologies.
Wind
Access data and analysis services that provide access to wind resource data and NREL models.
General Information
- API Key Usage - How to use your API key after signing up.
- Web Service Rate Limits - Daily and hourly rate limits on accessing NREL's Web services.
- General Web Service Errors - General error codes that can be returned by any NREL Web service.