Since National Grid (US) recently changed their API endpoints and no longer works with the core Opower integration, I decided to figure out how the API endpoints work and create both an API library (aionatgrid) and a custom integration.
This is still very early and is designed to work with AMI/smart meters. For electric meters it should capture the 15-minute interval usage periods every hour. For gas meters it will capture the hourly usage periods with up to a 72 hour delay.
Currently broken for me given an api update from February - waiting patiently for an update.
Would be interested in this as well when its stable. thank you
Also interested in this once you get it sorted, thanks
How is progress on this?
It seems like the original integration from this post was abandoned but someone has forked and updated it here: GitHub - virtitnerd/ha_nationalgrid: Home Assistant custom integration for National Grid ยท GitHub I was able to get it set up and get my data feeding in, although I don't have a smart meter so it's fairly limited from national grid. Still it seems to work.