I have had solar installed a few months ago and your bills show consistently doing estimations and WAY under estimating the impact of my solar devices.
My solar devices report 60% of my power now comes from the solar. And that I am selling back 1.5x what I do buy ... back to the grid. Therefor my bill should be 40% of what it was minus the credit for what I put back to the grid.
You will see in my account this is not what is occuring.