China’s clean-energy scale-up: cheaper hardware, but systems decide outcomes

By Mark Jansen, Center for Sustainable Finance at CATÓLICA-LISBON


“China is now making more money from exporting green technology than America makes from exporting fossil fuels.” (The Economist, 2025)

Overview

The Economist explains that China’s rapid growth in clean-energy manufacturing and deployment is changing both the speed and the economics of the energy transition. As factories have scaled, the costs of solar panels, wind turbines and batteries have fallen. Procurement is faster, so more projects move from plan to build. In many countries the key question is no longer whether equipment is available, but whether power systems can use much larger volumes of variable renewables without delays or waste.

Scale, price and exports

High-volume production has pushed unit costs down and improved delivery reliability. China is now the leading exporter of clean-energy equipment, lowering prices worldwide, most visible where affordability had been the main barrier. Deployment accelerates when local rules and infrastructure keep pace with procurement.

System readiness

Results depend on core enablers. Grids need timely transmission upgrades to move electricity to demand centres. Clear interconnection procedures and transparent queue management help projects connect on time. Storage and demand-side flexibility help match supply and demand as weather and demand change. Market rules that value these services reduce curtailment and raise effective use of new assets.

What this means for decisions

Investors: model connection timelines, congestion and curtailment risk, and how storage and flexibility are treated in market rules.

Policymakers and regulators: standardise PPAs and grid codes, set bankable tariff structures, and publish clear permitting and connection timelines while enabling flexibility and storage to participate.

Corporate energy buyers: balance headline price with supply-chain resilience, long-term service and maintenance, and performance guarantees.

International dimension

The Economist notes particular relevance for emerging markets. Stable policy frameworks and clear processes allow lower equipment costs to support faster electrification, reduced exposure to imported fuels, and progress on climate targets. Common risk measures include diversifying suppliers, using local assembly or joint ventures, and setting firm warranty and service obligations.

Coal and the generation mix

The overall impact depends on whether new renewable capacity displaces coal or runs alongside it. Dispatch rules, pricing and system flexibility determine how much coal is actually replaced as grid and market reforms advance.

Bottom line

Cheaper and more available clean-energy hardware is reshaping project economics. The pace at which it becomes reliable, clean electricity depends on system readiness: grids, interconnection processes, storage integration and market rules that reward flexibility.


Center for Sustainable Finance

The Center for Sustainable Finance (CSF) mission is: advancing the role of Finance in building a Sustainable World.

We believe that Finance has been a powerful lever in the development and prosperity of our societies, by empowering better decisions when allocating resources and capital. This role is critical as we face several (inter)generational challenges, from Climate Change to the sustainability of Retirement Systems.

The Center has the main goal to provide world-class expertise in Sustainable Finance by:

1) Contributing to rigorous academic study and knowledge building in the area of Sustainable Finance.

2) Participating in the acceleration of solutions to the challenges identified, with a particular focus on the Portuguese context.

3) Fostering the learning and advancement of capabilities in the focus themes, across all economic agents.

The Center's inaugural focus will be on Climate Change and the Transition to a low-carbon economy, where finance plays a key role in fueling innovation and channeling capital toward an economic system that is less dependent on carbon emissions. We believe that a well-managed transition empowers opportunities and allows for a more efficient and fairer transition.

Center for Sustainable Finance,

Developing Pathways for a Prosperous Future

https://www.centerforsustainablefinance.com
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