Shortly before the new year, Vice President Biden issued a memo  summarizing the federal government’s progress in promoting “clean energy,” primarily via the 2009 stimulus bill (the American Recovery and Reinvestment Act, or ARRA ). The Dec. 15 memo highlights significant incentives provided for efficiency, renewable electricity, biofuels, plug-in hybrid-electric vehicles, carbon capture and storage, and other low-carbon technologies. It summarizes where things stood one year ago (e.g., in terms of generating capacity, number of homes with smart meters) and where things are expected to be in the next few years.
The memo notes that ARRA provides $80 billion for clean energy investments. In terms of impacts, Vice President Biden claims, for example, that ARRA and other policies put the United States on track to double by 2012 non-hydro renewable electricity generation capacity compared to the level at the beginning of 2009. The memo says the rate of home energy efficiency retrofits will increase by an order of magnitude from 2009 to 2012 (to one million per year). While there are currently no commercial-scale carbon capture and storage projects in operation, the memo projects that there will be five by 2015. There are also evaluations of vehicle fuel economy, biofuels, nuclear power, electric vehicles, smart grid, and clean energy manufacturing.
While the clean energy advances touted by the Vice President are undoubtedly positive developments, the key policy for significantly reducing U.S. greenhouse gas emissions—i.e., putting a price on carbon—is still being debated in Congress. The House passed a climate and energy bill  that included a greenhouse gas cap-and-trade program in June, and the Senate  continues deliberations on a similar bill.
In considering efforts to transition to a low-carbon future, it’s helpful to remember that climate change is a “tale of two market failures .” First, and most importantly, businesses and households do not face any price associated with emitting greenhouse gases despite the social costs  (e.g., costs of damage to coastal communities from sea level rise, increase in costs due to reduction in water resources) associated with their contribution to dangerous climate change. Thus businesses and households lack a key financial incentive to invest in efficiency or lower-carbon energy sources. Second, while intellectual property protections help firms profit from their investments in new technology, the nature of innovation is such that the gains to society (i.e., to other businesses and consumers) from a single company’s investments in innovation generally exceed the returns to that company. Thus businesses tend to under-invest in innovation.
With respect to fostering innovation, a summary  from Harvard’s Belfer Center of U.S. Department of Energy research, development, and demonstration (RD&D) funding over time illustrates that the $7.5 billion in energy-related RD&D funding in ARRA is more than half as much as DOE received, cumulatively, in the five years from FY2005 through FY2009.
We know that a combination of a market-based climate policy that puts a price on carbon (e.g., via a greenhouse gas cap-and-trade  program) to “pull” a portfolio  of low-carbon technologies into the market coupled with incentives for low-carbon technology research, development, demonstration, and deployment (RDD&D)—i.e., policies to “push” low-carbon technologies into the market—make reducing greenhouse gas emissions less costly  overall than a reliance on only “push” or “pull” policies alone.
The efforts outlined in the Vice President’s progress report are providing a much needed “push” for clean energy—such as government funding and loan guarantees to leverage private-sector investment in commercial-scale demonstrations of carbon capture and storage. But, ultimately, the United States will not make the required significant, absolute reductions in emissions without the market “pull” created by an economy-wide carbon price.
Steve Caldwell is a Technology and Policy Fellow