下面係美國土木工程學會四年一次提供俾政府嘅全國基建評估報告，尼個係 2017年嘅，今年的未出
According to the report. The majority of the transmission and distribution lines were built in the mid-20th century and have a life expectancy of about 50 years, meaning that they are already outdated.
簡譯如下: 美國大部份供電系統都係二十世紀中建設，壽命預期大約可有五十年，即是這些現在全部都已過舊
Between 2016 to 2025, there's an investment gap of about $177 billion for infrastructure that supports electricity, like power plants and power line
更新？當時估計十年內要花 1770億美元先達到最低及格水平
