Stick to the established utility companies, PGW for gas and PECO for electric and you'll be fine. If you want to shop around for a better deal after the fact, you can, but I doubt you'll save much of anything in the long term by switching.

Pretty much what the others said, stick to the established. I only had one person come to my door since I moved in in May, about (and I'm paraphrasing/trying to recall) "PECO doing something new and making sure it shows up on my bill" -- I said I'm not sure but I'd get a bill shut the door, never came back, and they left and never returned.

Basically if anyone comes to your door regarding utilities, don't answer it. I mean there's really no reason to answer your door unless you're expecting a package. Don't know if physical mail about this ever comes in, I've only gotten scam deed/home insurance things through USPS.

Ignore any mailers or anyone who comes to your door asking you to sign up for an alternate supplier or lock in rates with an alternate energy supplier other than PECO and PGW. They are most likely going to be more expensive, whether green energy or not.

The gas is run by the city so I believe your only option for gas will be PGW. For electric you'll want to use PECO. There will be people that will knock on your door, ask to see your PECO bill, and basically bullshit you trying to passively get you to switch electric providers. All you need to do to avoid being "scammed" is just don't answer your door or if you do tell them you're not interested.