Getting a new electrical panel for the house.

Jea 48 ,thats a really cool panel, I haven’t seen that and its got all the right stuff for what OP is trying to accomplish, I didn’t want to call out a specific model because I wasn’t sure what the OP would require but the impression I got was that he would need a new service or combination panel. Just dont buy anything OP until you talk to a few electricians, that Siemans panel is technically a sub panel and would either require that you have a main or combination panel on a outside wall or a remote meter section somewhere outside. Best!

Hard to take anyone seriously that talks about a "buzz bar".

I'm not sure about now, but 8-9 years ago when I put a QO panel in my shop, they were made in the U.S.

Ya ,if your buss is a buzzin better start runnin.

This is for 2500 sq ft home. Unfortunately I only have 150am service. We don’t have issues with breakers however I would like to have a panel that is 200amp and if we decide to upgrade the service to 200amp a then we’re at least set for the panel.

I like that Siemens panel but dang that sucker is costly. 👍🏻
 

my current panel has 20 spots.