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Internet plugs into PG&E lines – Menlo Park test to send broadband
AT&T Corp. and Pacific Gas and Electric Co. on Wednesday announced a trial run of broadband sent over power lines, an emerging alternative to cable and DSL for delivering high-speed Internet access.
Ben Charny, CnetNews.com
San Francisco Chronicle
As part of the test, the two companies tapped about 100 residents in Menlo Park, where the power grid is used to deliver Internet access to wireless signal repeaters on street lampposts. Homes then receive up to 3 Mbps of wireless Net access. Participants were given Wi-Fi phones from Cisco Systems so that they can make phone calls over the fast broadband connection.
AT&T won’t consider anything more than a trial of the technology until at least 2005, when chipmakers say they’ll deliver the silicon upgrades needed for an even faster connection through the power grid. That will result in a much faster experience inside homes, said Irwin Gerszberg, AT&T director of local network technology.
"For a trial, 3 (Mbps) is no problem, but it’s not going to hold when the networks get crowded conditions," Gerszberg said.
Because electricity travels at a lower frequency than Internet signals, the two can coexist on the same line without interference. Power lines are also an attractive broadband delivery system because they are already in place and reach more homes than either cable systems or telephone lines.
Federal Communications Commission Chairman Michael Powell attended a demonstration of the technology. He has said broadband over power line technology makes it "theoretically possible to reach every power outlet in America with a broadband connection." The FCC is under pressure to substantially increase the number of U.S. homes that have broadband, which now stands at about 29.2 million.
AT&T and other local phone companies support the technology because it doesn’t rely on the local phone networks owned by regional Bell operating companies SBC Communications, BellSouth, Verizon Communications and Qwest Communications International.
Phone competition rules that set cheap rates elapsed last month, so the Bells are expected to charge more for access. Accordingly, alternative last- mile connections into homes, such as BPL or wireless broadband, are getting more attention, AT&T executives said.
The technology still has problems. It can be unreliable, and isvery expensive. These two drawbacks have tempered its use.
There are about two dozen trials of the technology under way throughout the United States.
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