HES Pro/Consumer API (archived)

The Home Energy Saver API enables software developers to access the calculation engine of the Home Energy Saver, the first web-base home energy calculator. The HES API can be used to build applications that support home inspections or comprehensive energy assessment. Our project gallery displays the work of third party developers using the HES API. The Home Energy Saver API also powers the existing (or Legacy) Home Energy Saver professional and consumer websites.

The main Home Energy Saver API documentation site isdevelopers.buildingsapi.lbl.gov. This page provides a brief overview of the object model and the WSDL's for the Scoring Tool API.

Note that in order to use the HES-SF API you must have previously obtained an API key by completing the Licensing process.

The general steps for accessing the API, and performing a calculation are as follows:

HES-Pro/Consumer API Object Model

HES-Pro/Consumer API WSDL's

An updated version of the API - the HES single family API - is under development. A first version of the single family API powers the Home Energy Score, and the model will be expanded to accommodate the needs of the professional and consumer Home Energy Saver websites.