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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Aug 31, 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.
"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!
Bring your utility's Green Button (NAESB ESPI) energy data into the Home Assistant Energy dashboard via a stateless OAuth proxy.
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
Handles the OAuth authentication, downloading, and parsing of Green Button® API 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.
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.
Headless CLI for Con Edison account, billing, and energy-usage data
Client-side ConEd rate-plan optimizer — will switching plans lower your bill? (coned.jedarden.com)
Pacific Power (PacifiCorp) → Home Assistant Energy dashboard, via Green Button ESPI XML scraping
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
Hydro Ottawa — independent third-party profile of a public API surface, by API Evangelist. Hydro Ottawa Holding Inc. is a private corporation 100 percent owned by the City of Ottawa, and the parent of Hydro Ottawa Limited — the regulated local distribution company (LDC) that delivers electricity to roughly 372,000 customers in Ottawa and Casselman,
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
Ontario Energy Board — independent third-party profile of a public API surface, by API Evangelist. The Ontario Energy Board (OEB) is the independent regulator of Ontario's electricity and natural gas sectors, licensing and rate-regulating roughly 60 electricity distributors, the province's transmitters, storage and generation licensees, unit sub-me
Toronto Hydro — independent third-party profile of a public API surface, by API Evangelist. Toronto Hydro is the municipally owned local electricity distribution company (LDC) for the City of Toronto, delivering power to roughly 800,000 residential and business customers across Canada's largest city.
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