Subestación Fonalleda - PREPA Electrical Substation in San Juan, Puerto Rico

Subestación Fonalleda is an electrical substation located in Puerto Rico, United States, and is owned and operated by the Puerto Rico Electric Power Authority (PREPA). As a substation, it serves as a critical node in the transmission and distribution network, stepping down high-voltage electricity for local distribution. The facility is currently operational and contributes to the island's electrical infrastructure. While specific technical specifications such as voltage levels are not detailed in the available data, substations in Puerto Rico typically operate at transmission voltages of 115 kV or 230 kV, stepping down to distribution levels. PREPA's grid has faced challenges from aging infrastructure and extreme weather events, leading to ongoing modernization efforts under regulatory oversight from the Puerto Rico Energy Bureau and compliance with US federal standards. The environmental context of Subestación Fonalleda includes its location in the San Juan metropolitan area, where it supports urban and industrial electricity demand. The substation's role in grid resilience is significant given Puerto Rico's vulnerability to hurricanes and seismic activity, making reliable electrical infrastructure essential for community safety and economic activity.

Subestación Fonalleda is situated in the San Juan metropolitan area of Puerto Rico, a region with high population density and critical infrastructure demands. The substation's location in an urban setting means it is subject to potential impacts from extreme weather events such as hurricanes, which can disrupt grid operations. Its role in voltage regulation and power distribution is vital for maintaining grid stability and supporting local communities and businesses.