On Sun, 29 Jan 2017 15:17:45 -0800 (PST), trader_4
wrote:

Here's an example of what they look like:


http://www.homedepot.com/p/Wiegmann-...24RC/202097235

It's essentially a rectangular metal box where you can bring
the service in, then wire it over to two or more panels.
They do that here for big houses that have a 300A service,
for example. Put the gutter in between two 150A panels.

Gfre was suggesting that the OP could add a second panel
that way and it's probably the most cost effective way,
assuming the existing can't go over 200A.

OK, Thanks...
I've seen those in use on some commercial buildings. I never knew what
they were called though...