Debunking the myths that discourage public funding of clean energy

To spur decarbonization, public investments must go beyond government support of research and development and expand into the manufacturing and deployment of new technology. To do this, governments must move beyond the myths surrounding public investment in clean energy that discourage use of public funds, a newly published Yale School of the Environment-led commentary in “Nature Energy” explains.

In 2021, worldwide investment in low-carbon energy transition was $755 billion, far below what is required, the authors note. Climate finance must grow by a factor of almost six by 2030 to limit global warming to 1.5 degrees Celsius. However, government support in helping to advance clean energy technology, the authors say, has been hampered by three key myths that permeate the discussion: government should not pick “winners” by throwing funding behind key innovators; public financing of a specific technology company could lead to excessive government support known as “rent-seeking”; and publicly funded clean energy technology that fails is tantamount to policy failures.

“We have a dual goal with this piece— debunking the arguments against scaling up at the same time as saying how do you manage scaling up well?” says lead author Jonas Meckling, who was the Coleman P. Burke Distinguished Visiting Associate Professor at YSE in 2021 and is associate professor at the University of California, Berkeley.

The commentary grew out of an effort to bring faculty and students of different academic disciplines together to examine clean energy policy at a time when the Biden Administration’s Build Back Better plan proposed more than $500 billion for climate initiatives. That legislation stalled in Congress.

“The commentary is a playbook in defense of why you shouldn’t actually be susceptible to arguments that spending money on climate is inefficient and wasteful,” says co-author and YSE Professor of Economics Matthew Kotchen.

The Nature Energy commentary was also co-authored by Peter Raymond, professor of ecosystem ecology; Hillhouse Professor of Environmental Law and Policy Daniel Esty; and Charles Harper ’22 MEM, Gillian Sawyer ’22 MEM, and Julia Sweatman ’22 MEM, who were student leaders of the YSE Climate Change Initiative. Additional authors include Indiana University Professor Sanya Carley; Bella Tonkonogy, director of climate finance at the Climate Policy Initiative; and Joseph Aldy, professor of the practice of public policy at Harvard Kennedy School.

To kickstart decarbonization, governments must redirect investment toward decarbonization and subsidize clean technologies to lower their costs below that of dirty alternatives, the authors say.

To drive down costs, policy makers should focus on technologies that maximize emission reductions over time and help bridge funding gaps in early-state technology known as the “valley of death.”  Markets cannot be counted on to optimize these critical policy dimensions, the authors state.

“The goal of spreading risk in public investment is to maximize energy innovation returns, not — as for venture capitalists — to maximize financial returns,” they wrote.

Policy makers also have to manage expectations. Not every technology that governments fund will be successful. Governments should diversify their portfolios across technologies and types of firms, which will result in some major successes, along with some failures, the authors advise.