Haesong Offshore Wind has signed a grid interconnection agreement with Korea Electric Power Corporation (Kepco) for its planned 1-gigawatt (GW) offshore wind project near Shinan, the company said on Tuesday.
The agreement includes both phases of the development — Haesong 1 and Haesong 3 — and will allow for the integration of renewable energy generated by the project into South Korea’s national grid.
The Haesong project is being developed by Copenhagen Infrastructure Partners (CIP) through its CI V fund, alongside technical partner Copenhagen Offshore Partners. The developers have already completed a wind measurement campaign and secured electricity business licences.
Haesong Offshore Wind said the agreement marks a key milestone in advancing one of South Korea’s largest offshore wind initiatives.
“Beyond merely securing transmission infrastructure, this agreement is significant as it lays the foundation for managing project lifecycle risks and enhances long-term predictability,” said Jungwoo Hong, strategic grid director for Haesong Offshore Wind.
The company added that it aims to strengthen the domestic offshore wind supply chain through collaboration with Kepco and regional partners. Hong noted that the Shinan region is positioned to become a strategic hub for South Korea’s offshore wind industry.
The project continues to progress toward construction, with two major supply chain contracts awarded in recent weeks. LS Marine Solution was selected as the preferred bidder for subsea cable transport and installation, while EEW KHPC will supply pin piles and casings for the wind farm’s jacket-type foundations.
Haesong Offshore Wind said the project aligns with South Korea’s broader energy transition strategy, which includes expanding renewable energy capacity and reducing dependence on fossil fuels.
