Porto do Açu FSRU

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Porto do Açu FSRU, also known as FSRU do Porto do Açu, is an operating LNG import terminal in Brazil.

Location

Table 1: Location details

Name	Location	Coordinates (WGS 84)
Porto do Açu FSRU	Port of Açu, São João da Barra, Rio de Janeiro, Brazil	-21.847897, -40.991889 (approximate)

The map below shows the approximate location of the terminal:

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Project Details

Table 2: Infrastructure details

mtpa = million tonnes per year

Name	Facility type	Status	Capacity	Total terminal capacity	Offshore	Associated infrastructure
Porto do Açu FSRU	import	operating	7.5 mtpa	7.5 mtpa	True	GNA I, GNA II, GNA III and IV power stations (plus potential secondary supply via pipeline to Norte Fluminense power station and Marlim Azul power station)

Table 3: Cost

Name	Facility type	Cost	Total known terminal costs
Porto do Açu FSRU	import	–	–

Financing

No financing data available.

Table 4: Project timeline

FID = Final Investment Decision, used by some developers to indicate a project will move forward

Name	Facility type	Status	Proposal year	FID year	Construction year	Operating year	Inactive year
Porto do Açu FSRU	import	operating	–	–	–	2021	–

Ownership

Table 5: Ownership

Name	Facility type	Status	Owners	Parent companies	Operator
Porto do Açu FSRU	import	operating	Siemens [33%]; BP PLC [20%]; Prumo Logistica [46%]	EIG Global Energy Partners [46.9%]; Siemens [33.0%]; BP PLC [20.1%]	KN Energies

Table 6: Vessel ownership

Name	Facility type	Status	Vessel	Vessel owners	Vessel operator
Porto do Açu FSRU	import	operating	BW Magna	BW Group	BW LNG

Background

The Porto do Açu LNG terminal is part of the massive Porto do Açu port project on Brazil's Atlantic coast. Developed by GNA (Gás Natural Açu), a consortium formed by Prumo, BP, and Siemens, the terminal consists of a permanently moored FSRU (floating storage and regasification unit) with a regasification capacity of 21 million cubic meters per day and a storage capacity of 174,000 cubic meters. Initial plans called for the terminal to supply the 1338 MW GNA I power station and the 1672 MW GNA II power station in São João da Barra, which were scheduled to begin operating in 2021 and 2023, respectively.

The floating regasification unit (FSRU) BW Magna, purpose built for the Gas Natural Açu (GNA) LNG-to-power project, was commissioned by GNA from BW LNG. It was built in South Korea and scheduled for delivery by the South Korean shipyard DSME. The FSRU is designed for LNG transfer operations in ship-to-ship mode, with LNG to be imported periodically according to the needs of the Brazilian electrical system.

GNA has studied several future expansion options for the Porto do Açu facility, including doubling its regasification capacity with the addition of a second FSRU, adding storage capacity in the form of six LNG storage tanks with a capacity of 180,000 cubic meters each, enhancing distribution potential to Brazil's internal market by linking to the Gasene Gas Pipeline at Campo de Goytacazes, or supplying gas to additional power plants in Rio de Janeiro state such as the Norte Fluminense power station and the Marlim Azul power station.

The Porto do Açu terminal obtained its final installation license from INEA (Rio de Janeiro's environmental agency) in December 2018. The FSRU arrived at the Port of Açu in February 2020 and received its first imported LNG cargo from BP in January 2021.

Lithuania-based Klaipedos Nafta (KN Energies) was appointed as the operator of the Port of Açu LNG terminal onshore facilities. The LNG was to be supplied by BP, a shareholder of the GNA project along with Prumo Logistica and Siemens.

In 2023, KN Energies began working with BP to develop a new project allowing transport of LNG from a truck loading station at the Port of Açu to consumers not served by southeastern Brazil's gas pipeline network.

Regasification capacity

The Porto do Açu terminal was originally announced with a capacity of 21 million m³ per day (5.6 mtpa). As recently as 2026, reputable sources such as GIIGNL and IGU have continued to list the terminal's capacity as 5.6 mtpa. However, reports from the terminal's owners have cited a wider range of regasification capacity, from 21 million m³ to 28 million m³ per day, or 1 billion cubic feet per day.

Plans for a new onshore terminal

During the inauguration ceremony for Gás Natural Açu's GNA II power station in July 2025, GNA and NTS (Nova Transportadora do Sudeste) confirmed that they had formed a partnership to study the potential for an onshore LNG regasification and storage terminal at the Port of Açu, which would be connected to the national gas transportation network via the proposed Northern Fluminense Integration Gas Pipeline (GASINF). The companies did not disclose the proposed capacity of the onshore terminal, but p 20 of GNA's 2024 Sustainability Report made it clear that the new facility would be a distinct project from the existing FSRU at Açu port: "In 2024, we also developed the conceptual design for an onshore LNG storage and regasification terminal. The facility will have greater storage and regasification capacity than the FSRU BW Magna, which we currently operate offshore. This would be the first onshore LNG storage terminal in Brazil and would expand our capacity, offering greater flexibility and supply security for the entire system."

As of August 2026 there had been no further updates on development plans for the onshore terminal.

Articles and Resources

Additional data

To access additional data, including an interactive map of LNG terminals, a downloadable dataset, and summary data, please visit the Global Gas Infrastructure Tracker on the Global Energy Monitor website.