[Home Assistant] Improve data reliability and prevent data loss for energy monitoring

My electric bills were insane and I had no clue what was using all that power. So I built my own monitoring system and now I know exactly whats going on. I put sensors on pretty much everything. 12 circuit monitors to track different parts of the house, 8 smart plugs for big appliances, temperature sensors everywhere, weather stations outside, and hooked into my solar panels and batteries, home assistant runs it all. Something hard was making sure I never lose data, tried the basic setup first but it kept dropping information. Lost two whole weeks of solar data once and almost threw my computer out the window. I tried using nats running on a tiny computer in my basement, it saves everything so even if internet goes out nothing gets lost. All my sensors send data to nats, then it saves to a database, makes graphs I can look at, and home assistant does automation based on what it sees. I also wrote some custom alerts for stuff I care about. The reason I switched was because the old system kept losing messages and I wanted something that wouldn't break when I add more sensors, nats has better tools for the custom stuff I build and it saves everything automatically. I keep detailed data for 30 days then it summarizes by hour for two years, after a year and a half the whole database is only 8 gigabytes. Now I can see exactly which room or appliance is using power right this second, system automatically turns off stuff when battery gets low. Tell me if freezer stops working, helps me use solar and battery so I barely touch grid power. And it costs me 15 bucks a month total. 5 for cloud backup, 2 for file backup, 1 for website name, 7 for database backup, everything else runs on my own equipment. If you're doing energy monitoring don't skimp on the system that moves your data around, losing data when you're trying to save money on solar really sucks.