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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Updated
Oct 20, 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.
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.
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.
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
Home Assistant integration for Consumers Energy via Green Button Connect (UtilityAPI)
Reproducible home energy analysis: rate plan, solar, battery, and EV-charging economics computed from a year of 15-minute utility data. Every figure traceable to a committed script and data artifact.
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.
Reproduces real California utility bills from your own meter data and finds the cheapest rate plan.
Pacific Power (PacifiCorp) → Home Assistant Energy dashboard, via Green Button ESPI XML scraping
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
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
To associate your repository with the green-button topic, visit your repo's landing page and select "manage topics."