Here is an interesting article in the New York Times (registration required) about an experiment by Con Ed, the big New York City area electric provider, with Broadband Over Powerlines (BPL).
The BPL trial is not particularly noteworthy. I'll bet most of the electric utilities in the country have bought some equipment and are playing around with it. No, what's worth mentioning is that Con Ed has said, "Our aim is definitely not to become an Internet service provider."
Yes! That's exactly right. Con Ed has partnered with EarthLink, which will be the ISP. Con Ed is simply going to provide the transport layer, and the electric company is going to do what it does best, which is to go around and bury cable. They are doing what they know how to do, and will make a buck leasing their transport system (the electric lines) to someone else, who knows the Internet access business. Even better, Earthlink has not been trying to capture the content side of the broadband business, which the cable and telephone companies would like to do. Aside from a modest portal site, EarthLink is also sticking to the knitting.
If BPL becomes a force in the marketplace (and the jury is still out on the economics of that because of the amount of equipment needed to retrofit an electric service area), it will most likely succeed if the electric utilities do what Con Ed is doing--provide the transport layer and partner with others on access and service.
And thre is a lesson there for communities that want to jumpstart broadband--provide the transport layer and let the private sector deliver the access and services. Pay for the community investment by being the "carrier's carrier" and have just a few bulk customers (the access and service providers). It's a nice, clean business model that does not compete with the private sector and does not re-monopolize the marketplace (by creating a new public monopoly for broadband).