Overview
Blount Island Substation is an operational electrical substation owned by Jacksonville Electric Authority in Jacksonville, Florida, operating at 138 kV to support regional grid stability.
Blount Island Substation is a key electrical infrastructure asset located in Jacksonville, Florida, owned and operated by the Jacksonville Electric Authority (JEA). The substation operates at a voltage level of 138 kV, classifying it as a medium-to-high voltage facility that plays a critical role in the local power distribution network. As part of JEA's transmission system, it helps ensure reliable electricity supply to residential, commercial, and industrial customers in the Jacksonville area. The substation's 138 kV voltage level indicates its function as a sub-transmission or distribution substation, stepping down power from higher transmission voltages for local distribution. In the United States, such facilities are subject to NERC reliability standards and FERC regulations for grid stability. JEA, a community-owned utility, operates under state and federal oversight, ensuring compliance with mandatory reliability requirements. The substation's equipment likely includes circuit breakers, transformers, and switchgear typical of modern substations. Blount Island Substation serves the Blount Island area, which includes the Port of Jacksonville's marine terminal and industrial facilities. Its location near a major port and industrial zone underscores its importance for supporting economic activities and critical infrastructure. The substation's operational status contributes to the resilience of Jacksonville's electrical grid, facilitating power delivery to essential services and the local community.
Environmental context
The substation is situated in a coastal urban-industrial area near the St. Johns River and the Port of Jacksonville. Its proximity to marine environments requires careful management of potential impacts such as stormwater runoff and equipment insulation against salt spray. The facility's 138 kV operation involves electromagnetic fields and heat dissipation, which are managed through standard engineering practices. The surrounding industrial land use minimizes direct ecological sensitivity, though grid reliability is crucial for supporting environmental monitoring and emergency response systems in the region.
Frequently asked questions
Blount Island Substation is located in Jacksonville, Florida, United States, near the Blount Island area of the Port of Jacksonville.
The substation is owned and operated by the Jacksonville Electric Authority (JEA), a community-owned utility serving the Jacksonville region.
Blount Island Substation operates at 138 kV, a common sub-transmission voltage level used for distributing power from high-voltage transmission lines to local distribution networks.
In the United States, substations are regulated under NERC reliability standards for grid stability and FERC regulations for transmission-level assets. Local utilities must also comply with state public service commission rules.
The substation supports the electrical needs of Jacksonville's industrial and port areas, ensuring reliable power for critical infrastructure and contributing to overall grid resilience in the region.