This article introduces a project overview of the Hokkaido Gan-wu Minami-goshi Offshore Wind, which has been designated as a “Promising Zone” under Japan’s Act on Promoting the Utilization of Sea Areas for the Development of Marine Renewable Energy as of October 2025.

The information will be updated as new details become available based on publicly accessible sources.

➡ For an overview of all ten Promotion Areas as of 2025, see:
Promotion Areas for Offshore Wind in Japan – 2025 Overview

Contents

1. Project Overview

Project name	TBD
Developer	TBD
Consortium Members	TBD
Location	Offshore Gan-wu Minami-goshi, (Hokkaido)
Type	Fixed-bottom offshore wind power
WTG	TBD
Supply price	TBD
Capacity	Approx. 560-710 MW
Start of Construction	TBD
Operation Period	TBD

2. Location

2-1. Sea & Geographical Features

2-2. Port Infrastructure & Grid Connection

3. Consortium Members

4. Project Implementation Structure

5. Project Schedule

5-1. Overall schedule

5-2. EIA status

Prefecture	Project name	Developer	EIA Stage	Project Scale	Last updated

出典：Ministry of the Environment, Japan

6. CAPEX/OPEX Estimates

Summary

To explore how this area compares nationally and understand Japan’s offshore wind roadmap, visit:
Promotion Areas for Offshore Wind in Japan – 2025 Overview —
your guide to Japan’s offshore wind Promotion Areas.

Explore more categories at DeepWind:

🔍Market Insights – Understand the latest trends and key topics in Japan’s offshore wind market
🏛️Policy & Regulations – Explore Japan’s legal frameworks, auction systems, and designated promotion zones.
🌊Projects – Get an overview of offshore wind projects across Japan’s coastal regions.
🛠️Technology & Innovation – Discover the latest technologies and innovations shaping Japan’s offshore wind sector.
💡Cost Analysis – Dive into Japan-specific LCOE insights and offshore wind cost structures.