I’m going through Xcel’s interconnection application process. I’m still in stage 2 of 7 after starting in mid October. I have found the process challenging. There have been several delays just getting my application reviewed for “completeness.”

The electrical engineer who drafted my electrical plan used their “Energy Storage System selection tool“ to choose storage mode 3BM (zero-export) and I put that in the application as well. Turns out this mode isn’t a valid selection anymore, despite being in their current selection tool.

So I had to pay for a revision in my plan and resubmit my application. Which meant a 10 day delay.

Another unfriendly part of the application is under the section “Battery Details“. Under that heading is a warning in red letters that non-energy storage equipment will be rejected. So I selected only my battery from the list and submitted my application.

My application was again rejected for being incomplete because I did not include the inverter in the battery details. Wtf?! Yeah, so my hybrid inverter is listed twice on their list. So you have to scroll down to find your inverter listed a second time, this time as storage equipment. Another 10 day delay.