"Sanj" wrote in message news:u_zZf.64$ee6.4@trndny01...
My homebuilder says upgrading my electric service to 300 or even 400 Amps
will result in more "efficient" use of electricity by my appliances. Can
one
of you experts out there please explain how this is so?

Just a techinical issue, I am unaware of any manufacture that makes a 300
amp service.

Get a service for the load. Bigger is not better in this case.

I will provide my address if you feel the need to give away money
needlessly.