San Juan II power plant — Puerto Rico

San Juan II power plant is a 560 MW gas power station in Puerto Rico, Puerto Rico. It ranks #7 of 10 Puerto Rico power plants by installed capacity.

Plant data: WRI Global Power Plant Database (CC BY 4.0), id GOGPT_sanjuanii_puerto.

Capacity provenance

The public capacity above is the current source-record value. A 2026 tracker candidate lists 840 MW for San Juan (PR) power station, but it is not used as the public primary value until scope is verified (unit vs operating vs installed/project total).

Data provenance

Capacity and fuel are the upstream open-dataset record, not yet matched to a 2026 registry or GEM entry.

capacity: GEM GOGPT; fuel: GEM GOGPT

In context: how this plant compares

Technically it is described as CCGT; combined-cycle with a heat-recovery steam generator (HRSG). Its current lifecycle status is “Pre Construction” — so it is not yet, or no longer, generating at full output. Gas plants burn natural gas either in open-cycle turbines for fast peaking, or in combined-cycle units that recover exhaust heat in an HRSG to reach roughly 55–62% efficiency — the cleanest-burning fossil option.

Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.

How it compares & nearby plants

The #3 largest gas power plant of 3 in Puerto Rico by capacity.

Puerto Rico has 3 gas power plants in this dataset, together about 2,224 MW of capacity.

Nearby power plants

• San Juan (PR) power station · Oil · 840 MW · Puerto Rico
• San Juan CC · Oil · 840 MW · Catano
• Palo Seco power station · Oil · 752 MW · Palo Seco
• Palo Seco · Oil · 602 MW · Toa Baja
• Palo Seco · Gas · 126 MW · Toa Baja
• San Fermin Solar Farm · Solar · 27 MW · Canovanas

Location

Coordinates 18.461942, -66.11091 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions