Media agency, The Maritime Exclusive, reported that Japan’s parliament has passed a pivotal amendment that will allow offshore wind projects in the country’s Exclusive Economic Zone (EEZ)—marking a major shift in the nation’s clean energy strategy.
First introduced in January 2024, the legislation aims to unlock over 4 million square kilometers of Japan’s EEZ for renewable energy development. Until now, wind farms have been limited to Japan’s territorial and internal waters.
Japan Unlocks Its Ocean to Tap Wind Energy
The Maritime Exclusive also highlighted, “according to the Japan Wind Power Association (JWPA), Japan’s EEZ holds the potential for up to 552 GW of offshore wind capacity primarily from deep-water floating turbines—a technology well-suited to the country’s geography.”
Key Features of the Amendment:
-
Designated Zones: The bill enables specific areas within the EEZ to be earmarked for offshore wind development.
-
Interagency Council: It mandates the Ministry of Economy, Trade and Industry (METI) to set up a coordinating council to work with local authorities, industry players, and other stakeholders.
-
Environmental Oversight: The legislation streamlines government-led environmental assessments, ensuring that renewable energy expansion does not come at the cost of marine biodiversity.
This legal reform not only boosts Japan’s ambitions to scale offshore wind but also strengthens its energy security and progress toward net-zero emissions by 2050.
2024: Cumulative installed capacity of Wind Power in Japan: 5,840.4MW (2,720 units)
Energy Independence Meets Climate Action
Japan has long relied on fuel imports, especially after the 2011 Fukushima disaster reduced nuclear power use. Fossil fuels still dominate Japan’s energy supply. Offshore wind power offers a way to cut imports and add stability to the energy system.
The Japan Wind Power Association estimates offshore wind could produce 3.6 gigawatts (GW) of electricity by 2030. Japan targets 10 GW by 2030 and 45 GW by 2040. Offshore wind farms offer a steady energy supply, not influenced by land use or sunlight.
Offshore wind energy produces no greenhouse gases while operating. This makes it a strong tool against climate change. Electricity from offshore turbines replaces power from coal or liquefied natural gas. This shift aids Japan’s goal of carbon neutrality by 2050.
Japan’s latest Strategic Energy Plan aims for renewables to make up 40–50% of the energy mix by 2040. Offshore wind is expected to contribute 4–8% of that total. These projects avoid land use problems and urban conflicts, making them suitable for densely populated areas.
To protect marine ecosystems, the law includes environmental assessments. These surveys will look at risks like noise pollution and habitat disruption, ensuring projects align with ecological safeguards.
Offshore Wind Needs to Hit 2,000 GW by 2050 to Stay on Climate Track
In 2020, the Ocean Renewable Energy Action Coalition (OREAC) set a bold target: 1,400 GW of offshore wind by 2050 to align with the 1.5°C climate goal. Since then, leading institutions like the International Renewable Energy Agency (IRENA) have raised the bar, now calling for at least 2,000 GW of offshore wind by mid-century to reach net-zero emissions.
However, the world remains far behind. As of now, only 35 GW of offshore wind is installed globally. Even with current momentum, we’re only expected to reach 234 GW by 2030, according to GWEC Market Intelligence. Only the European Union has set a long-term target—300 GW by 2050.
To close the gap, governments and private players must act fast. This decade is critical to unlock offshore wind’s full potential and keep climate goals within reach.
The law also makes Japan a more appealing partner for joint ventures. International companies may seek research collaborations, technology exchanges, and co-investment projects in Japan. This will strengthen Japan’s market presence and influence policy in the Asia-Pacific region.
Overcoming Offshore Wind Challenges
Despite strong government backing, developers may face technical, social, and financial challenges. Building turbines in deep waters and harsh weather areas adds complexity and cost. Securing stable financing and public support will be crucial. Engaging with fishermen and coastal communities early will help reduce opposition.
The success of these projects relies on teamwork. National agencies, local stakeholders, and private investors must work together. Effective grid planning and better port infrastructure are essential. They help maximize the benefits of offshore wind for consumers.
What Does This Mean for Japan’s Net-Zero Future?
As per Japan’s Ministry of Environment, the country’s greenhouse gas emissions and removals for FY2023 totaled 1,017 million tonnes of CO₂ equivalent (Mt CO₂e)—the lowest level ever recorded.
This marks a 4.2% drop (44.9 Mt CO₂e) from FY2022 and a 27.1% decline (378.1 Mt CO₂e) compared to FY2013, continuing the country’s steady progress toward its 2050 net-zero goal.
The decline was largely driven by two key factors: a cleaner energy mix, with renewables and nuclear combined surpassing 30% of power generation, and lower energy demand, mainly due to reduced industrial output in the manufacturing sector.
Subsequently, this new law also fits in Japan’s energy policy. With technology, global demand, and government backing, offshore wind could lead to a major energy shift for the country. If done right, this law may lower energy imports, cut emissions, and encourage similar laws in Asia.
