By Naina, 23rd May 2026

The global energy transition has moved out of the era of declarations, pilots and ambitions, and decisively into the era of execution. The year 2025 closed with the world adding approximately 800 gigawatts of new renewable capacity, a year-on-year increase of 16 percent and the twenty-third consecutive year in which renewables set a new expansion record. The International Energy Agency now projects that renewables will surpass coal as the largest source of electricity generation globally either at the end of 2025 or by mid-2026 at the latest, depending on hydropower availability. The share of renewables in global electricity generation is on course to rise from approximately 32 percent in 2024 to approximately 43 percent by 2030, with the share of variable renewable energy sources — principally solar photovoltaics and wind — nearly doubling to approximately 27 percent. Over the period 2025 to 2030, renewables are expected to meet more than ninety percent of global incremental electricity demand growth. The implications for international economies, for capital markets, for industrial competitiveness and for geopolitical positioning are now flowing through every layer of macroeconomic analysis.

What makes the present cycle structurally different from earlier waves of clean-energy investment is the breadth of the driving forces. Climate policy remains an important motivator, but it is no longer the principal one. Energy security, technology leadership, industrial competitiveness, employment creation and inflation control have all moved into the central calculation. The International Energy Agency's analysis of the past five years' rapid growth in energy-transition spending finds that approximately seventy percent of the increased investment came from net fossil-fuel importers seeking to reduce import exposure, with China's drive to lead emerging clean-technology sectors, Europe's accelerated response to the Russian gas-supply shock and India's solar build-out together accounting for the majority of the increase. A further twenty percent came from the United States, where industrial-policy considerations and the desire to challenge Chinese supply-chain dominance shaped the policy frame.

The Chinese Scale

China's role in the present transition has no historical parallel. In 2025, China added almost 500 gigawatts of new renewable capacity, accounting for more than sixty percent of the global expansion. The country commissioned approximately 370 gigawatts of solar photovoltaic capacity and 117 gigawatts of wind capacity in a single year, representing increases of 13 percent and 48 percent respectively over the previous year. In early 2025, China alone added 240 gigawatts of new solar capacity in a matter of months, the largest single-country deployment in any comparable period in history. The transition to competitive renewable auctions in June 2025, replacing the earlier system of long-term fixed tariffs, prompted a rush of installations in the first half and a measured slowdown thereafter, while wind installations continued to accelerate through completion of large-scale mega-base projects outside the auction scheme.

The Chinese build-out is not just about volume. It is about cost. Chinese solar module costs have continued to decline through scale, manufacturing-process improvements and aggressive capacity expansion, and have driven the levelised cost of solar generation below the operating cost of much of the global coal fleet. Chinese battery manufacturers including CATL and BYD have done the same for lithium-ion storage. Chinese electrolyser manufacturers have driven down the capital cost of hydrogen production. Chinese wind-turbine manufacturers have moved into offshore deployment at scale. The Chinese energy-technology supply chain has become the central infrastructure of the global transition, and the geopolitical and trade implications of that position are now flowing through every major industrial policy debate.

The Chinese deployment is also creating new strategic capabilities. The country's grid-scale battery storage portfolio has expanded into the tens of gigawatt-hours, ultra-high-voltage direct-current transmission corridors are moving renewable power from western Chinese deserts to eastern industrial centres on a scale no other country has approached, and the electric-vehicle fleet now exceeds 25 million units. The combination of generation, storage, transmission and end-use electrification is producing one of the most rapid energy-system transformations any major economy has ever undertaken.

The European Push

The European Union's response to the Russian gas shock has crystallised into one of the most coherent and accelerated energy-transition programmes any region has pursued. In 2025, the European Union added nearly 85 gigawatts of new renewable capacity, a record high and approximately ten percent above 2024 levels. Solar photovoltaics led the expansion with almost 70 gigawatts installed, followed by onshore wind, offshore wind and a growing contribution from grid-scale storage. The REPowerEU plan, anchored on accelerated renewable deployment, energy-efficiency investment and diversification of natural-gas imports, has reshaped the European energy system in ways that the Commission's earlier Green Deal planning had not anticipated.

The strategic projects driving the European transition are now visible across multiple member states. Offshore wind in the North Sea, with major capacity expansions in the United Kingdom, Germany, the Netherlands, Denmark and Belgium, has progressed despite supply-chain pressures and rising capital costs. Iberian solar, with Spain and Portugal accounting for a meaningful share of European photovoltaic deployment, has continued to expand on the basis of favourable solar conditions and supportive policy. Eastern European integration, with Poland and Romania accelerating renewable build-out as part of broader coal-phase-out commitments, has provided the geographic balance that earlier European policy had emphasised. Cross-border interconnection projects, including the North Sea Wind Power Hub and the various Mediterranean interconnector initiatives, are progressing toward construction phases.

The investment requirement is significant. Capital allocation across European utilities, infrastructure funds, sovereign-wealth vehicles and increasingly private-equity participants has continued at scale, supported by a regulatory environment that has provided both incentive and certainty. The European Investment Bank has positioned itself as the world's largest issuer of green bonds, with cumulative issuance now well above 80 billion euros. The Innovation Fund, financed through the EU Emissions Trading System, has begun disbursing the largest single-country support packages ever allocated to industrial decarbonisation projects, with major awards to steel decarbonisation in Sweden, cement decarbonisation in Norway, hydrogen-electrolyser manufacturing in Germany and ammonia production in the Netherlands.

The Indian Acceleration

India's energy transition has moved from announcement to delivery at a pace that has surprised both domestic and international observers. As of the 31st of March 2026, India had installed approximately 283.46 gigawatts of non-fossil-fuel capacity, including 150.26 gigawatts of solar power, 56.09 gigawatts of wind, 11.75 gigawatts of bioenergy, 5.17 gigawatts of small hydropower and 51.41 gigawatts of large hydropower. India crossed the milestone of fifty percent of its installed electric-power capacity from non-fossil sources in June 2025, five years ahead of the 2030 target set under the country's Nationally Determined Contribution to the Paris Agreement. In July 2025, India reached its highest-ever renewable share in electricity generation, with renewables meeting 51.5 percent of total electricity demand of 203 gigawatts. India has now moved into third place globally in installed renewable-energy capacity, behind only China and the United States, having overtaken Brazil.

The annual build-out has accelerated significantly. India added approximately 55.3 gigawatts of non-fossil capacity during fiscal year 2025-26, marking nearly a sixty-percent increase in annual renewable additions year-on-year. Solar manufacturing under the Production-Linked Incentive scheme has scaled to a point at which India is now a credible exporter of modules and cells, reducing the country's earlier near-total dependence on Chinese imports. Wind manufacturing, particularly in Tamil Nadu and Gujarat, has expanded both for the domestic market and for export. Battery manufacturing, supported by the broader Advanced Chemistry Cell programme, has begun delivering grid-scale storage at competitive prices.

The capital requirement is significant. Independent estimates suggest that India will require approximately five hundred billion US dollars of new investment to complete the 500-gigawatt non-fossil target by 2030, with subsequent investment of comparable magnitude required through the period to 2047, when the country aims to become energy-independent, and 2070, when it has committed to net-zero emissions. Foreign direct investment through the automatic route has been permitted in Indian renewable-energy projects since 2023, and the country has emerged as one of the most attractive global destinations for clean-energy capital. Sovereign green-bond issuance, the broader corporate green-bond market and dedicated multilateral facilities, including the World Bank's energy-transition partnerships and the Asian Development Bank's lending programmes, have provided the long-duration capital that the transition requires.

The Hydrogen Frontier

Green hydrogen has emerged as the defining frontier of the next phase of the energy transition. The fundamental promise is straightforward: hydrogen produced through electrolysis powered by renewable electricity can replace fossil fuels in hard-to-abate sectors including steel, fertilisers, refining, long-distance transport and aviation. The challenge is equally clear: green hydrogen remains significantly more expensive than the grey hydrogen produced from natural gas that currently meets nearly all industrial hydrogen demand, and bringing the price down requires both technological progress and scaled deployment.

India's National Green Hydrogen Mission, approved by the Union Cabinet in January 2023 with an outlay of approximately 19,744 crore rupees, targets annual green hydrogen production capacity of at least five million metric tonnes by 2030, supported by approximately 125 gigawatts of additional renewable-energy capacity dedicated to hydrogen production. The mission's broader projections include incremental investment of approximately eight lakh crore rupees, the creation of approximately six lakh new jobs and the abatement of approximately fifty million tonnes of carbon dioxide emissions per year. The Strategic Interventions for Green Hydrogen Transition programme, known as SIGHT, provides targeted incentives for both hydrogen production and electrolyser manufacturing, translating policy ambition into early market creation. The Solar Energy Corporation of India's auctions have already produced encouraging price discovery, including a record low of 55.75 rupees per kilogram for green ammonia in early 2026, suggesting that the cost trajectory may move faster than initial projections assumed.

The European, Japanese, South Korean and Gulf hydrogen programmes are equally significant. The European Union's REPowerEU plan targets ten million tonnes of domestic green hydrogen production and an additional ten million tonnes of imports by 2030. Saudi Arabia's NEOM Green Hydrogen Company, jointly developed with ACWA Power and Air Products, is constructing what will be the world's largest green hydrogen facility, designed to produce 600 tonnes per day of green hydrogen and 1.2 million tonnes per year of green ammonia by 2026. The United Arab Emirates, Oman and Qatar are pursuing parallel programmes anchored on the strategic logic of converting Gulf solar resources into exportable energy carriers. Japan's Hydrogen Society strategy and South Korea's Hydrogen Economy Roadmap continue to anchor major importer demand.

The Storage and Grid Question

Battery energy storage has emerged as the indispensable enabler of high-renewable-share power systems. The International Energy Agency reports that global investment in battery energy storage systems has climbed from approximately one billion US dollars in 2015 to an estimated 66 billion dollars in 2025, approaching investment levels in gas-fired power generation. The cost of lithium-ion battery storage at the system level has fallen by approximately ninety percent over the past decade, and grid-scale storage is now economically deployable on a stand-alone basis in many markets, without requiring co-location with renewable generation.

The implications for grid stability are significant. The earlier concern that high renewable shares would require expensive backup generation has been substantially addressed by the combination of storage deployment, demand-response capability, improved forecasting and increasingly sophisticated grid management. China, the United States, Australia, the United Kingdom and an increasing number of European jurisdictions now operate grid-scale storage portfolios sufficient to manage substantial renewable variability. India's grid-scale storage tendering programme, supported by the Solar Energy Corporation of India and the Central Electricity Authority, has begun delivering competitive bids that suggest the country can match the global cost-decline trajectory.

The grid investment requirement, however, remains the most under-recognised dimension of the energy transition. The build-out of high-voltage transmission to connect remote renewable resources to demand centres, the upgrade of distribution networks to manage bidirectional power flows associated with rooftop solar and electric-vehicle charging, the integration of digital monitoring and control systems and the expansion of cross-border interconnection all require investment that, in aggregate, may exceed the generation investment itself. The European Union's ten-year network development plan, China's ultra-high-voltage corridor programme, India's Green Energy Corridors and the United States' interregional transmission planning are all components of a global grid build-out that is now central to the broader transition.

Offshore Wind and the Maritime Frontier

Offshore wind has matured from a European specialty into a global category. The United Kingdom remains the largest offshore wind market, with the Hornsea, Dogger Bank and East Anglia clusters anchoring a national portfolio that now exceeds 14 gigawatts. China has rapidly become the largest builder of new offshore capacity, with extensive deployment along its eastern coastline. The United States, despite recent policy headwinds, has begun construction on Vineyard Wind, Coastal Virginia Offshore Wind, Revolution Wind and several other commercial-scale projects. Japan, South Korea, Taiwan and Vietnam have established meaningful pipelines. Australia has begun developing its offshore wind framework. India's offshore wind programme, with initial leases off the coasts of Gujarat and Tamil Nadu, is progressing through environmental impact assessment and supply-chain mobilisation.

Floating offshore wind, which extends viable deployment to deeper waters and to regions without suitable shallow-water sites, is moving from research to commercial deployment. Norway's Hywind Tampen, Portugal's WindFloat Atlantic and France's Provence Grand Large have demonstrated the technical viability of the category. Commercial-scale floating projects are now under development off the coasts of Scotland, California, Maine, South Korea and Japan, with cost trajectories that suggest competitiveness with fixed-bottom offshore wind within the present decade.

The Critical Mineral Foundation

The entire energy-transition build-out depends on the supply of critical minerals — lithium, cobalt, nickel, graphite, manganese and rare-earth elements. The International Energy Agency's analysis shows that the average market share of the top three refining nations across copper, lithium, nickel, cobalt, graphite and rare earths has risen to approximately 86 percent, with most of the incremental capacity concentrated in Indonesia for nickel and in China for the majority of the remainder. The strategic vulnerability of the transition to a small number of supply chokepoints has become one of the central concerns of every major industrial-policy framework.

The response has been the rapid development of alternative supply chains. Australia, Chile, Argentina, Canada, the United States, the Democratic Republic of Congo and a growing list of African producer states are receiving substantial investment in mining and processing capacity. The European Union's Critical Raw Materials Act, the American Inflation Reduction Act's domestic-content provisions, Japan's strategic minerals partnerships and India's Khanij Bidesh India initiative all seek to reduce dependence on the dominant Chinese-Indonesian processing complex. The reconfiguration of supply chains will take years and significant capital, but the strategic intent is now well established.

The Risks and the Frictions

Several risks warrant clear recognition. The first is the funding gap relative to climate commitments. The COP28 commitment to triple global renewable capacity by 2030 implies an even more rapid deployment trajectory than the present cycle is delivering. The International Energy Agency's Renewables 2025 report acknowledges that, despite record additions, the world is not yet moving fast enough to meet that goal. The gap is concentrated in emerging markets and developing economies outside of China and India, where capital constraints, currency risk, political risk and grid limitations are slowing deployment.

The second risk is supply-chain saturation. The rapid scale-up of solar manufacturing, wind manufacturing and battery production has produced periods of oversupply, price volatility and trade-policy friction. The American imposition of tariffs on Chinese clean-energy products, the European Union's anti-dumping investigations and India's basic-customs-duty regime have all sought to balance the strategic objective of building domestic supply chains against the deployment objective of accessing the lowest-cost equipment.

The third risk is land use and community acceptance. Large-scale renewable deployment requires substantial land, and the social-licence challenges associated with siting solar farms, wind farms and transmission lines have become significant in multiple jurisdictions. The mitigation, through agrivoltaics, repowering of existing renewable sites, offshore deployment and improved community-benefit-sharing models, is progressing, but the friction is real.

The fourth risk is the just-transition question. The shift away from coal, oil and gas affects employment, regional economies and government revenues in ways that have not been adequately addressed in many jurisdictions. South Africa, Indonesia, Vietnam, Senegal and several Indian coal-producing states are negotiating just-energy-transition partnerships that seek to provide concessional financing and technical assistance in exchange for accelerated coal phase-out, but the scale of the social and economic adjustment required is significant.

The Direction of Travel

The major energy-transition projects now under way are no longer experimental. They are foundational. The combined investment associated with renewable generation, grid-scale storage, transmission expansion, green hydrogen, electric vehicles, electrified industry and the supply chains that support them now exceeds two trillion US dollars annually globally, and is projected to climb meaningfully through the rest of the decade. The economic effects flow through every dimension of growth, employment, trade, inflation and competitiveness, and the strategic implications run through every aspect of geopolitics.

For India specifically, the transition has become one of the principal sources of growth and one of the principal opportunities for industrial transformation. The combination of demographic depth, policy direction, manufacturing capability, capital availability and entrepreneurial energy has positioned the country to participate in the transition not as a follower but as a leader. The 500-gigawatt target is increasingly recognised as a floor rather than a ceiling, and the country's role as the third-largest renewable-energy market is opening commercial, diplomatic and developmental opportunities that were not available to earlier generations of Indian policymakers.

The energy transition is no longer a question of whether or when. It is now a question of how fast, in what form, with what supporting infrastructure and to whose benefit. The international economies that are answering those questions effectively, through coherent policy, strategic capital allocation, disciplined execution and credible long-term commitment, are positioning themselves for the next half-century of economic leadership. The economies that are not are accepting a level of dependency on others that will, over time, constrain their economic and strategic autonomy. The transition is one of the largest capital reallocation projects in human history. The decisions being made now will define which countries lead and which follow, for generations to come.