The first step was PSE upgrading the meter to increase the capacity for the generator.
We reworked the 320 amp CT service. We actually removed the old CT can and reduced the service to 200amps.
This took careful coordination with the electrical inspector and PSE. The end result was great looking and reduced the service to 200 amps.
Look closely and you can see the green sticker approving the transfer switch after electrical inspection. Can you locate one of these stickers on you generator system?
A complex installation, but great results and it shows.