If you really want to monitor your usage, several electrical manufacturers have monitoring systems. I use on of the major manufacturers setups, not to get to geeked out but ct’s added to your main panel and multiple monitoring at the output source and I get a total view of usage and monitor (as granular as per device).
This has become, more widely use in the green (solar markets) but I found for a few hundred dollars I get a complete picture of usage. Just for complete disclosure I do work in the industry that sells these type of products, but that is why I don’t specify any manufacturer.