Why do all units have to cost the same?
For domestic, the first “x” number of units should be at one hard-capped, affordable rate and then everything above that at market rate.
Initial thoughts is x = some quantity at which an average household can cook, clean and heat some of their home.
If you have a larger home, swimming pool, or have invested in efficiency measures then this is accounted for.
You can’t accommodate everyone with one rule but this feels like it’d cover a majority and is clear and simple to follow and budget for. Thoughts?