The REPEAT Project provides regular, timely, and independent environmental and economic evaluation of federal energy and climate policies as they’re proposed and enacted. From Congressional legislation to proposed regulations and executive actions, the REPEAT Project provides a detailed look at the United States’ evolving energy and climate policy environment and the country’s progress on the road to net-zero greenhouse gas emissions.
Led by the Princeton ZERO Lab (Prof. Jesse D. Jenkins, PI), in partnership with Evolved Energy Research and Prof. Erin Mayfield of Dartmouth College, the REPEAT Project employs a suite of geospatial planning and analysis tools coupled with detailed macro-energy system optimization models capable of rapidly evaluating policy and regulatory proposals at politically-relevant spatial resolutions (e.g., state, county, and sometimes finer resolutions). This includes evaluation of candidate sites for wind and solar development, thermal power plant siting and repowering, and transmission expansion as well as the impacts of the nation’s energy infrastructure on air quality and public health, and changes in energy sector employment. The REPEAT toolkit reflects further development and refinement of the models and methods used in the landmark Princeton Net-Zero America Study. Data and publications are intended to provide independent, timely, and credible information and analysis for broad educational purposes, including as a resource for stakeholders, decision-makers, and the media. Funding for the REPEAT Project was provided by a grant from the Hewlett Foundation.
With Congress considering infrastructure and budget bills that would provide unprecedented public investments in clean energy infrastructure, clean vehicles, and other low-carbon solutions, the REPEAT Project is releasing this preliminary report on the national-scale impacts of the Build Back Better Act being considered in the House of Representatives (H.R. 5376, as reported by the Budget Committee on September 27, 2021) and the Infrastructure Investment and Jobs Act (H.R. 3684, as passed by the Senate on August 10, 2021).
Since release of our “Preliminary Report: The Climate Impact of Congressional Infrastructure and Budget Bills,” on October 20th, 2021, the U.S. House of Representatives passed the Infrastructure Investment and Jobs Act ( H.R. 3684 ) on November 6th and introduced a new version of the Build Back Better Act ( H.R. 5376, RCP 117-18 ) on November 3, 2021.
There are a significant number of changes to the Build Back Better Act, which the REPEAT Project has carefully documented along with a thorough catalog of all climate and clean energy provisions in the final Infrastructure Bill in this document.
The REPEAT Project is currently modeling the updated version of Build Back Better (‘BBB 2.0’) and conducting a final analysis of the Infrastructure Bill, which will supersede results in our preliminary report and this addendum and will be released as soon as possible.
REPEAT will release granular, geospatially resolved results, analysis of air quality, public health, and employment impacts, and a state-by-state data portal at this website very soon. Stay tuned!
These tools were employed to great impact in the Princeton Net-Zero America study, which “set an entirely new standard” in energy transition modeling by offering an “unprecedented degree of clarity and granularity” in its results, according to John Holdren, former Science Advisor to President Obama and Director of the White House Office of Science and Technology Policy. The spatially-explicit and granular results and associated maps have proven to be highly relevant to a wide range of stakeholders and decision makers, and the responses to the report indicate the desire for more politically-salient outputs from energy systems models.
The REPEAT Project is further developing and refininge this suite of geospatially-granular planning, modeling, and visualization tools and employing them to rapidly evaluate federal energy and climate policy proposals, providing independent, timely, and credible information and analysis for broad educational purposes, including as a resource available publicly for stakeholders, decision-makers, and the media.