Business equipment that provided it had a extra wifi access point added to the setup. When its a residential account all is done with the modem gateway combo unit. The average residential account is never going to power down the gateway anyway. They dont really mention that in the test. They ran the test with a extra piece of equipment in the equation. Something we as residential customers dont have. This really is a apple and orange comparison for residential customers.
As a residential customer the difference would be what power your modem is using passing traffic compared to what it uses sitting idle when your not on it. I would be surprised if its actually 25 cents a month and that would be if anyone actually logged onto it. Easy way to tell is get a meter and check. Than figure the 10 minutes or so someone may have logged onto it. Anyone that actually believes this causes your electric bill to go up 18 dollars. I have a bridge to sell you.
Heres a guy that take sit to the extreme »www.dicks-website.eu/modem/enind ··· dex.html
Considering my modems power supply output uses a 12 volt 7amp output thats the most power that can be used. That means i can power 7 modems for less than a 70 watt light bulb. You do the math. And again that only even comes into effect if someone actually logs onto it. Look at the power supply to your gateway and than try to imagine that little thing trying to push out 18 dollars worth of electric. Like i said if you want to buy into this bullshit i have a few bridges that are really cheap.