Stateless OAuth proxy server bridging Green Button (NAESB ESPI) utility data to local software like Home Assistant. Hosted on Fly.io; backs the open-green-button-homeassistant integration.
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Oct 14, 2026 - Kotlin
Stateless OAuth proxy server bridging Green Button (NAESB ESPI) utility data to local software like Home Assistant. Hosted on Fly.io; backs the open-green-button-homeassistant integration.
Bring your utility's Green Button (NAESB ESPI) energy data into the Home Assistant Energy dashboard via a stateless OAuth proxy.
"Energy Monitoring in Less Effort" - An application to aggregate energy consumption data across several municipal assets and report usage to monitor and manage emissions. Makes bringing together Green Button and CSV data sources a breeze!
Parse Green Button® formatted energy consumption feeds into JSON.
Custom Home Assistant integration for automatically importing Green Button XML files.
🔌 Export Green Button (ESPI) energy usage data from Toronto Hydro
A web app for visualizing and analyzing energy consumption data from Green Button data.
NodeJS model application to interact with PG&E data access API for energy data
Ameren — independent third-party profile of a public API surface, by API Evangelist. Ameren Corporation is a regulated electric and natural gas utility serving customers in Missouri and Illinois. The company provides reliable energy delivery, smart grid infrastructure, and renewable energy programs.
Handles the OAuth authentication, downloading, and parsing of Green Button® API data.
Home Assistant integration for Consumers Energy via Green Button Connect (UtilityAPI)
PSEG — independent third-party profile of a public API surface, by API Evangelist. Public Service Enterprise Group (PSEG) is a diversified energy holding company headquartered in Newark, New Jersey. Its regulated utility subsidiary Public Service Electric and Gas (PSE&G) is New Jersey's largest electric and gas distribution utility, and PSEG Long I
Pacific Power (PacifiCorp) → Home Assistant Energy dashboard, via Green Button ESPI XML scraping
Custom Home Assistant integration for automatically importing Green Button XML files.
Import Elexicon Energy (Pickering / Durham Region, Ontario) Time-of-Use electricity usage and cost into the Home Assistant Energy Dashboard via Green Button.
Client-side ConEd rate-plan optimizer — will switching plans lower your bill? (coned.jedarden.com)
Headless CLI for Con Edison account, billing, and energy-usage data
EPCOR — independent third-party profile of a public API surface, by API Evangelist. EPCOR Utilities Inc. is a municipally owned Canadian utility headquartered in Edmonton, Alberta, wholly owned by the City of Edmonton, that builds and operates electricity distribution and transmission, water and wastewater, and natural gas distribution systems acro
NAESB — independent third-party profile of a public API surface, by API Evangelist. The North American Energy Standards Board (NAESB) is the non-profit, industry-consensus standards development organization formed in 1994 that writes the business practice standards for the North American wholesale and retail natural gas and electricity markets, org
BC Hydro — independent third-party profile of a public API surface, by API Evangelist. British Columbia Hydro and Power Authority (BC Hydro) is a provincial Crown corporation whose sole shareholder is the Province of British Columbia, and which states that it generates and delivers electricity to "95% of the population of B.C." and serves "over fiv
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