Add Opower integration for getting electricity/gas usage and cost for many utilities

[tronikos]

Proposed change

Add Opower integration. More than 175 utilities use Opower. Currently the following utilities are supported:

• Pacific Gas & Electric (PG&E), California's largest utility, also largest (by revenue) utility in US
• Puget Sound Energy (PSE), Washington's largest utility
• Exelon subsidiaries
  • Atlantic City Electric, New Jersey
  • Baltimore Gas and Electric (BGE), Maryland’s largest utility
  • Commonwealth Edison (ComEd), Illinois' largest utility
  • Delmarva Power, Delaware
  • PECO Energy Company (PECO), Pennsylvania's largest utility
  • Potomac Electric Power Company (Pepco), Washington, D.C. and Maryland

According to wikipedia all the above utilities serve over 15 million households.

Anyone can update the underlying library to support logging in to their utility website and this integration should automatically pick up their utility after bumping the version.

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New integration (thank you!)
• New feature (which adds functionality to an existing integration)
• Deprecation (breaking change to happen in the future)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Additional information

• This PR fixes or closes issue: fixes #
• This PR is related to issue:
• Link to documentation pull request: Add documentation for Opower integration home-assistant.io#26793

Checklist

• The code change is tested and works locally.
• Local tests pass. Your PR cannot be merged unless tests pass
• There is no commented out code in this PR.
• I have followed the development checklist
• I have followed the perfect PR recommendations
• The code has been formatted using Black (black --fast homeassistant tests)
• Tests have been added to verify that the new code works.

If user exposed functionality or configuration variables are added/changed:

• Documentation added/updated for www.home-assistant.io

If the code communicates with devices, web services, or third-party tools:

• The manifest file has all fields filled out correctly.
  Updated and included derived files by running: python3 -m script.hassfest.
• New or updated dependencies have been added to requirements_all.txt.
  Updated by running python3 -m script.gen_requirements_all.
• For the updated dependencies - a link to the changelog, or at minimum a diff between library versions is added to the PR description.
• Untested files have been added to .coveragerc.

To help with the load of incoming pull requests:

• I have reviewed two other open pull requests in this repository.

[Lash-L]

Just a few things I noticed, hope this helps!

[Lash-L]

I would also add into the description why only PG&E is supported and how future utilities could be added

[tronikos]

I would also add into the description why only PG&E is supported and how future utilities could be added

Updated.

[borski]

Just following up, @Lash-L any chance we can get this reviewed? :)

[Lash-L]

@borski I'm not a core maintainer. My review doesn't matter for anything other than just trying to help out

[tronikos]

FYI, the underlying library now supports 8 utilities in US. The supported utilities serve over 15 million US households.

[domoritz]

That's awesome. If I can express a wish to add support https://www.duquesnelight.com which also supports Opower. The API is at https://duq.opower.com.

[tronikos]

Without access to an account I cannot support logging in to other utilities. You are on your own on that. Feel free to send me a PR to the underlying library https://github.com/tronikos/opower if you figure out how to programmatically login to your utility website and get the access token for opower. The current implementation for other utilities should help.

[robbiet480]

👀

[MartinHjelmare]

Please address the comments in a new PR. Thanks!

[tronikos]

Thanks. Addressing your comments in #95763