#1404 2010 · EPB (Chattanooga Electric Power Board) · public utilities / broadband
An Electric Utility Builds America's Fastest Internet
问题
Chattanooga's grid needed smart-grid communications, and incumbent broadband wouldn't build citywide fiber at all.
背景
In 2005 EPB, Chattanooga's community-owned electric utility, began planning a fiber-optic network across its 600-square-mile footprint, not for internet but to install a smart electric grid, which relies on fast, reliable two-way communication between utility equipment.
The infrastructure was built out across Chattanooga and Hamilton County, Tennessee by 2010 at a cost of $396 million. Two major lines of business emerged from the same fiber: the smart grid, and retail broadband. In 2010 EPB rolled out symmetrical gigabit internet, at the time the fastest in the western hemisphere.
换别人会怎么做
Wait for telecom incumbents to upgrade, or subsidize them to cover the whole city.
他们看到了什么
The grid had to communicate anyway. Let the utility's own smart-grid needs pay for citywide fiber, and broadband becomes a byproduct at near-zero marginal cost: bold infrastructure on the back of boring necessity.
那一手
One fiber network carries two businesses. The grid's communication needs, real-time monitoring, outage management, metering, provide the anchor demand that justifies the build, while the utility's existing poles, conduits and rights-of-way make it constructible. Retail broadband then rides the same glass at near-zero marginal cost, letting a power company offer symmetrical gigabit citywide, including neighborhoods commercial ISPs had skipped.
为什么管用
The smart grid supplies guaranteed anchor demand and existing rights-of-way, cutting the build's risk and cost; retail broadband reuses capacity that already exists, and public ownership aligns coverage of every neighborhood over cherry-picking.
值了多少
Built by 2010 for $396M; broadband passed 35% penetration within three years and about 70% of homes by 2025 (UTC white paper).
什么时候会失灵
It fails where law bars municipal retail telecom, where the utility lacks consumer billing and service DNA, and if the anchor application's own case is weak, leaving the second business to carry the whole cost of the build.
后来呢
The 'Gig City' became the reference case for municipal broadband and a magnet for startups and remote work; utility-anchored fiber is now studied worldwide.
资料来源
- [1]How Does High-Speed Broadband Benefit a Community? (CRER White Paper 12)The University of Tennessee at Chattanooga, 2025utc.edu