- Mar 8, 2021 1:44 pm GMT
21st Century Costs of Underground Distribution is Power Delivery Intelligence Initative’s latest article in T&D World.
Advancements in material science, construction methods and emerging technologies make 21st century costs for undergrounding T&D assets much more attractive for planners and engineers than ever before. The old “rules of thumb” about the higher costs of T&D underground (vs overhead) are no longer valid.
The bottom line.... The cost of underground electric distribution is coming down. In fact, “over the life” of the asset, underground (UG) appears to have a lower cost than overhead(OH).
The article explains 21st century advancements in material science, design, construction and O&M that have utilities across North America evaluating the empirical data supporting the lower life-cycle costs for underground versus overhead distribution.
Not covered in the article, but worth strong future consideration are the harder-to-quantify benefits of safety, reliability, resiliency and aesthetics of UG vs OH.
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