Why South Asia’s Energy Corridor Battle Matters

by Anushree Dutta

Bangladesh has become the epicenter of a high-stakes geopolitical contest over South Asia’s next energy corridor, with China’s aggressive infrastructure investments clashing against an emerging India-Japan partnership that could fundamentally reshape regional power dynamics. This competition extends beyond mere energy supply—it’s about defining the strategic architecture of the Indo-Pacific for decades to come. Yet the true significance of this struggle lies not just in who powers Bangladesh’s factories, but in what this contest reveals about the region’s economic future and the critical importance of India-Japan cooperation in securing it.

Why This Corridor Matters: The Foundation of Regional Prosperity

The South Asian energy corridor is not simply infrastructure—it is the lifeline that will determine whether over 1.5 billion people in the region can achieve sustained economic growth and prosperity. Bangladesh exemplifies this imperative. As the world’s second-largest fashion supplier, the country exported $38.5 billion in garments last year and aims to reach $40 billion in 2025. Yet this $40 billion export machine sits on a precarious foundation: 1,800 energy-guzzling textile mills operating without reliable, affordable power. Bangladesh’s power imports surged to 15.4% of total supply by 2025, up from just 9.5% previously, and energy demand continues rising 7% annually despite political turmoil.​

The energy crisis is already extracting a heavy toll. Rising industrial gas prices and erratic power supply forced plant closures across Bangladesh in recent months, leaving more than 50,000 textile workers jobless. Vietnam, Bangladesh’s closest competitor in apparel exports, is projected to surpass it with $44 billion in exports this year—unencumbered by the energy constraints suffocating Bangladeshi mills. Without urgent intervention, Bangladesh risks locking itself into a “death trap” where spiraling energy costs erode the two competitive advantages that built its export empire: cheap labor and affordable power.​

The stakes extend across the entire South Asian subregion. Energy efficiency improvements alone could save Bangladesh $460 million annually and reduce LNG import dependence by 21%, yet Bangladesh squanders $200 billion annually on imported fossil fuels to produce electricity—money that could invest in schools, hospitals, and infrastructure instead. Across South Asia, energy-related greenhouse gas emissions represent 63% of regional emissions, and without a fundamental energy transition, CO2 emissions from energy supply will almost double or even triple by 2050. The region faces a brutal choice: secure stable, affordable clean energy now through regional cooperation, or watch its competitive manufacturing base erode and its climate commitments collapse into empty promises.​

The Untapped Gold Mine: Himalayan Hydropower and Economic Transformation

The energy corridor’s true value lies in connecting an extraordinary asset—Himalayan hydropower—with regions desperate for clean, reliable electricity. Nepal has set an ambitious target to reach 28 gigawatts of generation capacity within the next decade, primarily from hydropower, and can export 9,000 MW of power to Bangladesh by 2040 under existing bilateral agreements. Bhutan aims for 25 gigawatts by 2040, comprising 20 gigawatts from hydro and 5 from solar. Currently, Nepal exports 2,070 MW to India while Bhutan exports 700 MW—yet both nations have vastly more potential waiting to be unlocked.​

For Nepal, hydropower expansion could increase real GDP by 87% by 2030 and transform export revenues from under $1 billion to as much as $1.07 trillion by 2045. Bhutan already derives 45% of government revenues from hydropower exports and 12% of its GDP from this single sector—a transformation that could expand dramatically with regional demand. Yet these Himalayan nations cannot monetize their resources alone. Transmission infrastructure, grid interconnections, financing mechanisms, and stable regional markets require a coordinating power—India—and capital backing—Japan.​

Energy transition in South Asia could create over 50 million new jobs by 2030 in Bangladesh and India alone, yet only if regions secure affordable renewable energy to power manufacturing competitiveness. The energy corridor is therefore not merely an infrastructure project; it is the prerequisite for economic transformation across 1.5 billion people.​

China’s Advantage: Speed, Scale, and Relentless Momentum

China has invested cumulatively $1.308 trillion across 150 Belt and Road Initiative countries since 2013, with record engagement of $124 billion in the first half of 2025 alone. In Bangladesh specifically, China has committed $2.1 billion in fresh investments as recently as March 2025, while five Chinese-funded coal plants with 4,460 MW capacity are under construction. Chinese firms move rapidly, finance projects quickly through state-directed capital, and consolidate influence through integrated supply chains spanning Pakistan to Sri Lanka.​

This speed advantage matters because Bangladesh’s energy crisis admits no delay. Power shortages are destroying manufacturing competitiveness now. Every month of hesitation represents thousands of lost jobs and billions in lost exports. China understands this and moves accordingly.

India-Japan Partnership: Why This Matters for South Asia’s Future

The India-Japan partnership offers a fundamentally different model—one rooted in democratic values, transparent governance, and sustainable development. Japan pledged approximately ¥10 trillion ($68 billion) in private investment to India over five years, with explicit focus on energy infrastructure, grid modernization, and industrial corridors. This builds on Japan’s cumulative Official Development Assistance of $48.98 billion to India across 77 ongoing projects.​​

Critically, India-Japan cooperation addresses South Asia’s energy crisis through complementary strengths. India brings geographic leverage—hydropower from Nepal and Bhutan reaches Bangladesh only through Indian territory—and operational capacity to execute complex projects. Japan contributes financial capacity, advanced smart-grid technology, lifecycle cost discipline, and expertise in renewable integration. Together, they can deliver what China cannot: transparent financing, technology transfer, and governance aligned with recipient nation interests.​

In September 2025, Adani Power signed a landmark accord with Bhutan’s Druk Green Power to develop 570 MW of hydropower worth $720 million, the first phase of a planned 5,000 MW portfolio—demonstrating how India-Japan coordination could unlock Himalayan resources. Japanese financing for smart grids and transmission infrastructure, combined with Indian project execution and Himalayan hydropower, could create an integrated South Asian energy system that delivers stable, affordable, clean power to Bangladesh’s textile mills and expanding industries.​

The India-Japan partnership also operates through the Quad—India, Japan, the United States, and Australia—which has elevated economic security and supply chain resilience to strategic imperatives. This framework directly counters Beijing’s attempt to lock South Asia into Chinese-dominated supply chains by offering alternative financing models, technology partnerships, and market access grounded in a rules-based order rather than strategic coercion.​

The Window is Closing: Acting Now

Bangladesh faces elections imminently, with political transition likely to reshape energy policy. The post-election government will determine whether India and Japan can broker durable trilateral energy accords or whether the window for coordinated action closes. If New Delhi and Tokyo move swiftly to lock in approvals and financing immediately after elections, they can convert geographic leverage and quality infrastructure into enduring influence—delivering Bangladesh the stable, low-carbon electricity essential for manufacturing competitiveness.​

The South Asia energy corridor is therefore not a technical issue but a civilizational challenge. It will determine whether the region’s 1.5 billion people access affordable clean energy for development or remain trapped in fossil fuel dependence and rising import bills. It will decide whether Indian and Japanese values—transparent governance, democratic accountability, sustainable development—shape Indo-Pacific integration, or whether Chinese models of state-directed capital and supply chain dominance become the regional template.​

For India and Japan, working together on this corridor is not merely strategic cooperation—it is an essential test of whether democratic nations can move with the speed and coordination necessary to compete with authoritarian systems for regional influence. Bangladesh and South Asia await their answer.

  • Anushree Dutta

    Anushree Dutta is a Geopolitical Analyst with extensive research and program leadership experience at premier Indian and international institutes. She has authored numerous publications on security challenges.

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