I currently have a 4.700 kWp with 20x Sharp ND-Q235C5 using a Sunny Boy 6000US grid tied with socal edison. This system was built back in 2013. I was wondering if I'm able to upgrade to a newer Sunny boy Inverter with an SPS that can power 2000w 120v outlet. I just noticed Bluetti is releasing their EP500 pro that has an input charge of 1800w using 120v outlet. I was thinking of using that as a power battery backup to run during outages and having the SPS charge it up. Is it worth going this route? What other options can you guys recommend? I don't plan on living in this home for too long and need an option that I am able to easily take with me to my next home.