Hi. Its been over a year that this has been available in Ontario Canada. Is there anway you could help out millions of potential people and create an integration for Green Button Connect? Green Button and Green button connect is mandated by the government to allow households access to their data. This program covers water, hydro, and gas data. All hydro gas and water companies should be compliant by now and that means that homeowners can get access to download their data or use the green button connect api. A custom integration would be great too! Im just not that smart to create one myself.
Perhaps you would get better result if you read the pinned post to understand what this category is and revised your original post a bit.
Most people have no idea what that is or what HA integration you are looking at changing.
Is there already a Custom Integration to help with it? Generally new Core Integrations start as Custom Integrations until they are proven and stable. I can see you are new so I am not trying to chastise you, just trying to show how this is intended to work.
Give us more info and maybe we can find an avenue for relief here.