The race to build a clean-energy economy is often described as a contest between laboratories, startups and investors. A new study in Nature Communications argues that this familiar story leaves out one of the most important players: public institutions. In the United States, government agencies, publicly supported laboratories, universities and other state-backed organizations can determine whether a promising clean technology remains a scientific achievement or becomes a product capable of transforming markets. The research by E. Finkelstine, L. Diaz Anadon and J. Meckling examines how these institutions help move cleantech from invention toward commercial deployment, highlighting a stage of innovation that is frequently overshadowed by the excitement surrounding discovery.
Clean technologies rarely become commercially viable through private investment alone. A technology may demonstrate excellent performance in a controlled experiment yet remain too expensive, technically immature or difficult to manufacture at scale. This gap is often described as the “valley of death” in innovation: the period between proof of concept and reliable commercial production, when a project requires substantial funding and engineering support but has not yet generated enough revenue to attract conventional investors. For technologies such as advanced batteries, carbon-free fuels, carbon capture systems, renewable-energy equipment and industrial heat solutions, crossing this valley can take years and require capabilities that individual firms do not possess.
The study places public institutions at the center of this difficult transition. Their role is broader than financing basic research. Public organizations can support prototype development, testing, demonstration projects, technical certification, workforce training and the construction of shared infrastructure. These activities reduce uncertainty for private companies and help establish evidence that a technology can operate outside the laboratory. In technical terms, public intervention can lower both technological risk—the possibility that a system will not perform as intended—and market risk, the possibility that customers, regulators or suppliers will not support its adoption. By addressing both forms of uncertainty, public institutions can change the commercial prospects of an emerging technology.
This matters because cleantech innovation involves unusually complex systems. A new solar material, for example, must be manufactured consistently, connected to power networks and maintained over decades. A battery chemistry must be evaluated not only for energy density but also for degradation, safety, charging behavior, recycling and the availability of critical minerals. Hydrogen technologies require production equipment, storage systems, pipelines, standards and dependable customers. The commercial success of each technology depends on interactions among physical engineering, industrial supply chains, regulation and infrastructure. Public institutions are often uniquely positioned to coordinate these elements because they can operate across sectors and plan on timescales longer than those favored by quarterly corporate investment cycles.
One of the most important mechanisms discussed in the research is the use of public facilities and demonstration programs. Demonstration projects expose technologies to real-world operating conditions, where unexpected problems often appear. A device that functions in a laboratory may fail when exposed to temperature fluctuations, vibration, impurities, grid instability or continuous operation. Testing at meaningful scale generates performance data, reveals maintenance requirements and helps engineers improve designs. It also creates what economists call bankability: credible evidence that allows lenders, insurers and customers to judge whether a project is financially viable. Without such evidence, even a technically promising technology may struggle to secure the capital required for its first commercial installations.
Public institutions can also serve as “lead users” of emerging technologies. Government procurement, public infrastructure projects and state-supported facilities can create an initial market for products that private customers consider too risky. Early purchases provide revenue, but their deeper value is often informational. They show manufacturers which designs work, reveal how customers use the technology and help establish technical standards. As more installations generate performance data, production can become more efficient and supply chains can expand. This process may produce learning effects, in which the cost of a technology falls as cumulative experience increases. Public demand can therefore influence not only the size of a market but also the speed at which a technology improves.
The researchers’ focus on institutions is especially significant in the United States, where cleantech support is distributed across a complicated network of federal agencies, national laboratories, universities, state governments and regional development organizations. Each institution may have different authorities, budgets and performance measures. Basic research agencies tend to prioritize scientific breakthroughs, while applied research programs focus on engineering and demonstration. State governments may use grants, tax incentives or clean-energy standards to encourage deployment, and public laboratories may provide specialized equipment that would be prohibitively expensive for a startup to build independently. The challenge is not simply creating programs, but connecting them so that technologies can progress from one stage to the next without losing momentum.
This institutional continuity is critical because cleantech commercialization is rarely linear. A project may move forward, encounter a technical failure, return to research and then re-enter demonstration with a redesigned system. Public programs that demand immediate commercial success can discourage precisely the experimentation needed to solve difficult engineering problems. Conversely, programs that support research without mechanisms for field testing may produce impressive scientific results that never reach users. Effective commercialization systems must therefore combine patience with accountability, measuring progress through milestones such as improved efficiency, reduced material use, longer operating life, lower manufacturing costs and successful integration into existing infrastructure.
The findings also carry implications for how governments should evaluate innovation policy. Counting patents, research papers or startup creation may provide an incomplete picture of cleantech progress. A patent does not guarantee manufacturability, and a startup may fail even when its underlying technology is valuable. More revealing indicators can include the number of technologies that reach pilot scale, the durability of demonstration projects, the formation of domestic supply chains and the ability of firms to attract private capital after public support. These measures recognize that commercialization is not a single event but an accumulation of technical, financial and institutional achievements. They also make visible the behind-the-scenes work required to turn scientific knowledge into functioning infrastructure.
The study arrives as governments worldwide face pressure to decarbonize electricity, transportation, buildings and heavy industry while maintaining economic competitiveness. Private investment in clean energy has expanded rapidly, but capital tends to flow toward technologies with established markets and predictable returns. More experimental options—particularly those needed to reduce emissions from cement, steel, aviation, shipping and chemical production—often require public backing before they can compete on price and reliability. The research suggests that the decisive question is not whether governments should support innovation, but how public institutions can be designed to guide technologies through the most fragile stages of development while preserving competition and encouraging private-sector participation.
The broader message is that clean-energy revolutions are built through institutions as much as inventions. Breakthrough science may attract headlines, but commercialization depends on testing facilities, patient finance, skilled workers, standards, procurement and coordinated policy. By identifying the public structures that help technologies cross from laboratory promise to industrial reality, the research reframes cleantech progress as a collective process. In this view, the future of decarbonization will not be determined only by which company discovers the next breakthrough. It will also depend on whether public institutions can create the conditions in which that breakthrough can be engineered, trusted, manufactured and deployed at the scale demanded by the climate crisis.
Subject of Research: Public institutions and cleantech commercialization in the United States
Article Title: Public institutions for cleantech commercialization in the United States
Article References: Finkelstine, E., Diaz Anadon, L. & Meckling, J. “Public institutions for cleantech commercialization in the United States.” Nature Communications (2026). https://doi.org/10.1038/s41467-026-76484-6
Image Credits: AI Generated
DOI: 10.1038/s41467-026-76484-6
Keywords: cleantech, clean-energy innovation, commercialization, public institutions, United States, climate technology, demonstration projects, energy policy, innovation policy, decarbonization
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