Wow, it seems like a lot of SmartMeters might be able to directly connect to the SmartThings hub!
Your SmartMeter™ has two radios. The first relays your consumption and meter status back to PG&E to help us deliver your energy reliably and efficiently. The second radio is for Home and Business Area Networking, and is turned off by default. When you sign up and activate this second radio, your SmartMeter™ can take the electricity use information it already gathers and make it available to your selected compatible device securely, and in real-time. Your device depends on that information to show you how much electricity you’re using.
Other devices may be compatible on PG&E’s network. Customers can attempt to register any ZigBee SEP 1.0 or 1.1 device with their SmartMeter™, but PG&E cannot provide any guarantee that devices not included on PG&E’s list of validated devices are compatible.
That sounds a lot better than having to mess around with funky brackets and externally powered devices! If you guys can make this work I'm pretty sure you will make a lot of people happy!!