if you dont allow them inside house,do they note your meter number and charge you anything? they can start generator if you say that its not working? bills on domestic meter are sky high,let alone commercial meter which takes 50-60k for installation only,SSGC is charging GSD every month!They are illegal. Yes if over a specific limit like said above, then it becomes a commercial thing and then they install a commercial meter. So you get charged like that. We also get harrased by them but we know their trick so we usually tell them that it's not working or majority of times I don't even let them come inside to inspect the house.