5kWh of batteries is under $1000. That's enough for load shifting for most people. Even if you need several of them, that's still going to be cheaper than installation labor.
I set up the batteries and inverter myself, but paid a local installer and his 2 helpers a grand total of $45 to install and ground 10 x 600w panels on my dangerously high metal roof.
Yep I bought several Huawei 4.8 kWh batteries for about $450 each for an off-grid house in SE Asia. They've been working great a year later, running AC throughout the night.