CNOOC Offshore Wind Strategy, $19 B Plan, Green Volt Cancellation, and 1 Partnership (2021-2026)

Industry Adoption Risks: CNOOC’s Dual-Pronged Offshore Wind Strategy

In 2025, China National Offshore Oil Corporation (CNOOC) executed a dual-pronged offshore wind strategy, coupling aggressive, state-aligned domestic expansion with a notable retreat from a major international project due to commercial risks. This approach signals a strategic decision to leverage its offshore engineering expertise within the controlled, policy-driven Chinese market while applying strict commercial viability tests to ventures abroad. The divergence between its domestic success and international caution reveals a strategy that prioritizes national energy goals and technological leadership over competing in foreign renewable markets without favorable financial frameworks.

Domestic Expansion Under State Alignment

CNOOC’s domestic strategy solidified in 2025, building on its foundational plan from prior years to integrate renewables with its core operations. The company is not pursuing offshore wind as a standalone utility business but as a tool to decarbonize its oil and gas assets and support national energy security.

• In early 2026, building on its 2025 momentum, CNOOC announced plans to increase its total installed offshore wind capacity by 40% within the year, targeting 3.5 gigawatts (GW).
• This growth is supported by China’s evolving “single-thirty” rule, a policy designed to accelerate deep-sea wind projects where CNOOC‘s offshore engineering experience provides a significant competitive advantage.
• To support this expansion, CNOOC formed a strategic partnership with wind turbine manufacturer Mingyang in November 2025 to deepen cooperation in the offshore wind power sector.

International Retreat from the Green Volt Project

In stark contrast to its domestic ambitions, CNOOC’s international strategy in 2025 was defined by risk mitigation, culminating in the cancellation of a key offtake agreement in the UK North Sea. This move highlights a clear difference in how CNOOC assesses projects inside and outside of China’s supportive policy environment.

• In August 2025, CNOOC abandoned its plan to take power from the 560 MW Green Volt floating wind project, which was intended to electrify its Buzzard oil platform.
• The company stated it was “unable to find an investible solution, ” a decision that dealt a significant blow to the £2.5 billion project and contrasted with the North Sea strategies of majors like Shell and BP.
• This withdrawal suggests that CNOOC is unwilling to absorb the commercial risks of pioneering renewable projects in mature markets without strong fiscal incentives or subsidies, focusing its capital on more certain returns.

Investment and Cancellations: CNOOC’s $19 B Plan and the Green Volt Decision

CNOOC‘s 2025 financial strategy allocated up to $19 billion for an integrated portfolio of hydrocarbons and new energy, yet its most decisive action in the Western offshore wind market was a cancellation, not an investment. This highlights a strategic filter where large-scale capital is available but is directed towards projects that align with its core business or benefit from strong domestic policy support, while commercially uncertain international ventures are cut.

The Green Volt Project Cancellation

The decision to pull out of the Green Volt offtake agreement was the most significant event in CNOOC‘s 2025 international renewables strategy. It signals a low tolerance for financial uncertainty in overseas greenfield projects, even when they align with decarbonization goals. The action indicates that electrifying existing assets is subject to the same stringent commercial hurdles as any new investment, and the required returns were not achievable in this case.

2025 Capital Allocation Priorities

The announcement of a $19 billion capital expenditure plan in January 2025 underscored CNOOC‘s financial capacity. However, the budget was for “integrated development, ” reinforcing the strategy that renewables like offshore wind are primarily enablers for its core oil and gas business, rather than a primary growth sector. The cancellation of the Green Volt deal shows that even within this integrated strategy, projects must meet a high bar for financial viability that the UK project could not clear.

Table: CNOOC 2025 Key Financial Decisions and Cancellations

Partnership Data: CNOOC’s Mingyang Deal vs. PETRONAS LNG Focus

CNOOC‘s 2025 partnership activity reinforced its strategic priorities, showing a clear preference for alliances that support its dominant hydrocarbon business and domestic supply chain over building a global renewables portfolio. A single reported collaboration in offshore wind with Mingyang contrasts sharply with a major long-term LNG agreement with PETRONAS, illustrating where the company’s focus for large-scale, long-term commercial agreements truly lies.

Domestic Wind Turbine Alliance

In November 2025, CNOOC partnered with domestic turbine manufacturer Mingyang. This move is aimed at securing its supply chain and deepening technical cooperation for its ambitious offshore wind expansion within China. The partnership ensures access to technology and hardware crucial for its deep-sea projects, aligning with its strategy to build expertise and capacity in a controlled domestic environment.

Reinforcing the Core LNG Business

Just a month later, in December 2025, CNOOC signed a significant long-term Sale and Purchase Agreement with PETRONAS for 1.0 million tonnes per annum (MTPA) of LNG. This agreement, unlike the more general cooperation with Mingyang, represents a direct, large-scale commercial commitment that strengthens its core energy supply business and underscores the continued primacy of fossil fuels in its portfolio. Other national oil companies like ADNOC and Petrobras are also navigating this balance between core operations and new energy ventures.

Table: CNOOC 2025 Strategic Partnerships

Geography: CNOOC’s Divergent China and UK Offshore Wind Strategies

CNOOC‘s geographic strategy for offshore wind in 2025 became sharply defined, concentrating development and capital exclusively on domestic deep-sea projects in China while executing a full retreat from its only major renewable initiative in Europe. This bifurcation demonstrates that CNOOC’s offshore wind ambitions are, for now, a domestic affair, driven by national policy and leveraging its existing regional infrastructure.

Concentration in Chinese Waters

From 2021 to 2024, CNOOC‘s renewable efforts were largely exploratory, focused on developing engineering plans for integrated energy systems. In 2025, this shifted to active project development within China. The progress on the Hainan CZ 7 wind farm and the development of advanced floating platforms tailored for the South China Sea underscore a strategy to dominate its home market. This focus is directly supported by Chinese energy policy, which incentivizes the deep-water projects where CNOOC‘s oil and gas experience is most applicable.

Retraction from the UK North Sea

The UK North Sea was the only geography outside China where CNOOC had a significant publicly known offshore wind plan. The decision to abandon the Green Volt offtake agreement in 2025 marks a definitive strategic withdrawal from that market. This move suggests that, unlike competitors such as Total Energies, CNOOC’s international strategy does not currently include deploying capital for renewable projects in mature, competitive markets without direct government subsidies or exceptionally favorable commercial terms.

Technology Maturity: CNOOC’s Advanced Floating Wind Platforms Face Commercial Hurdles

CNOOC demonstrated significant technological capability in 2025 by deploying advanced floating wind platforms for the Chinese market, yet it simultaneously judged a similar technology class in the UK as not commercially viable. This paradox reveals that while CNOOC has mastered the engineering for deep-water wind, its path to commercialization is heavily dependent on the policy and economic environment of a specific market.

Pioneering Domestic Technology

In the period leading up to 2025, CNOOC focused on R&D for its integrated energy concepts. This bore fruit with the launch of key hardware. The “CNOOC Guanlan, ” the world’s first “double hundred” floating platform, and the new 16-MW Tension-Leg Floating Wind Platform highlight the company’s ability to develop and build cutting-edge technology. These platforms, designed for the challenging conditions of the South China Sea, validate its technical expertise in floating wind systems.

The Commercial Viability Test

Despite this technical progress, the 2025 cancellation of the Green Volt offtake plan shows that technological maturity does not guarantee commercial adoption. The decision implies that the cost of integrating floating wind power to decarbonize the Buzzard platform was too high without a supporting fiscal framework. While other oil and gas companies like Exxon Mobil and Chevron approach offshore wind with different partnership and technology models, CNOOC‘s action shows a clear preference for deploying its advanced technology only where state policy ensures profitability.

SWOT Analysis: CNOOC’s Strengths and International Market Weaknesses

CNOOC‘s primary strength lies in its state-backed offshore engineering expertise within a protected domestic market, which has allowed it to become a leader in China’s deep-sea wind development. However, the events of 2025 revealed that this strength is also a weakness, as the company’s business model struggles to compete on purely commercial terms in international renewable markets, exposing it to strategic threats when favorable policies are absent.

Table: SWOT Analysis for CNOOC’s Offshore Wind Strategy

Scenario Modelling: CNOOC’s Path to its 3.5 GW Target

The most critical indicator for CNOOC‘s offshore wind strategy is whether it can execute its plan to increase domestic capacity to 3.5 GW by the end of 2026. Achieving this target would validate its China-first strategy and confirm its ability to scale within a controlled policy environment. Failure to do so would question its execution capabilities even in its home market.

Validation of Domestic Execution

If CNOOC successfully adds nearly a gigawatt of capacity in a single year, it will demonstrate strong project management and supply chain control, solidifying its leadership in China’s deep-water wind sector. Watch for announcements of final investment decisions on new projects and the operational start-up of platforms like the 16-MW tension-leg unit to confirm progress toward this goal.

Signals for International Re-entry

After the Green Volt withdrawal, any new international renewable investment by CNOOC would signal a significant shift. If the company re-enters a foreign market, watch for the deal structure. It is more likely to pursue projects in regions with strong government incentives or partner with a state-backed entity to de-risk the investment, rather than compete on purely commercial terms in a liberalized market.

The Integrated Hydrogen Pilot

A crucial signal for its long-term strategy would be the announcement of a full-scale pilot project for its “oil and gas integration hydrogen production” system. While the engineering plans were highlighted before 2025, deploying a megawatt-level module on an active platform would be the first concrete proof of this concept and a key step in decarbonizing its core operations.

The questions your competitors are already asking

This report covers one angle of CNOOC’s offshore wind strategy. The questions that matter most depend on your work.

• CNOOC new offshore wind projects China
• Green Volt project status after CNOOC withdrawal
• Other Chinese energy companies investing in European wind
• China deep sea wind farm subsidies and policy

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