A consortium of Seawind Asia, Stream Invest Holdings and Triconti ECC Renewables has secured grid connection agreements for three offshore wind power projects in the Philippines: 450 MW Frontera Bay, 600 MW Guimaras Strait, and 600 MW Guimaras Strait II. Together, the three projects unlock a combined capacity of 1,650 megawatts (MW). The approval also allows the consortium to participate in Philippines’ upcoming Fifth Green Energy Auction (GEA-5), which is a competitive round for offshore wind capacity. This milestone also represents an important technical and commercial pre-condition under Philippines’ renewable scheme. It is also a strong signal for the accelerating momentum to scale large-scale offshore development in Southeast Asia alongside other renewables like MTerra solar project with an investment of over $3.4 billion.

Project Overview

Key Projects Securing Grid Connection

• Frontera Bay Offshore Wind Project: 450 MW
• Guimaras Strait Offshore Wind Project: 600 MW
• Guimaras Strait II Offshore Wind Project: 600 MW

Green Energy Auction (GEA-5) Framework

• Launched by Philippines Department of Energy (DOE) in November 2025
• Offers 3.3 GW exclusively for fixed-bottom offshore wind
• Developers compete for long-term contracts under pre-defined eligibility, pricing and delivery conditions

More on the 1.65 GW of Offshore Wind Grid Connections Approved in Philippines

All three were developed by the same consortium and are now cleared to participate in the GEA-5 process, which targets up to 3.3 GW of fixed-bottom offshore wind capacity scheduled for delivery between 2028 and 2030.

Under Philippine regulatory practice, developers must secure grid connection agreements with the National Grid Corporation of the Philippines (NGCP) before qualifying for renewable energy auction rounds. NGCP is the system operator responsible for ensuring transmission access.

The advancement is also a notable stride for the country’s growing offshore wind industry which has historically faced regulatory and permitting hurdles. This is despite having large theoretical offshore wind potential and numerous wind energy service contracts already awarded.

The grid agreements are also essential precursors to commercial bidding and financing structures for the projects. This is because they define the technical and transmission requirements needed for the offshore wind projects. Securing grid access also typically boosts investor confidence and is often required for financial close and project funding negotiations.

Consortium Development Team the 1.6 GW Offshore Wind in Philippines

Seawind Asia (via Sea Wind Management GmbH)

• Lead offshore wind developer focusing on project planning, engineering and execution across the three grid-connected sites.

Stream Invest Holdings AG

• Renewable energy investor and partner providing capital support and development capacity for wind ventures in emerging markets.

Triconti ECC Renewables Corporation (Triconti Windkraft Group)

• Filipino-Swiss joint venture combining local expertise with international offshore wind development experience. Contributed regulatory support, local permitting engagement and GEA readiness.

National Grid Corporation of the Philippines (NGCP)

• Transmission system operator and grid access regulator. Also issues grid connection agreements and enables projects to interconnect once technical conditions are met.

Philippines Department of Energy (DOE)

• Regulatory authority overseeing grid allocation, auction frameworks and permitting. Also launched GEA-5 in November 2025.