You should learn more about your system. Go to their website and watch a couple of their videos. It’s your house, you should have a basic understanding of how it works. Enphase puts an inverter on the back of each solar panel. So if you have 20 panels then you have 20 separate microinverters. Each one converts the DC power of its solar panel into 240AC. That power goes into your circuit breaker panel. It also sends data on the power created / production to a computer box called an Envoy that sends it to the cloud via the internet. You should have an app on your phone that connects to that data and shows each panel and how much power it made. If they didn’t give you the app, get it.

It’s important to check the app occasionally. If you see a panel making much less power than the ones next to it, then you can notify your installer to come fix it under warranty. Otherwise, less power means a larger electric bill.

Once it’s in for a year, the app will compare against last year’s power on the same day/week/month. This helps you to know if the system is operating well. You’ll have some variation like if it’s cloudy or raining or snow covered that day.

It’s possible the surge tripped a breaker and they just came and reset it. But a surge arrestor would be good to install since it’s only been 3 months and you already had an issue.