The Energy Department’s (DOE) National Renewable Energy Laboratory recently examined the carbon abatement potential of city actions in six policy areas as part of the DOE’s Cities Leading through Energy Analysis and Planning (Cities-LEAP) project. The analysis uses new data on energy use in more than 23,400 U.S. cities and estimates the aggregate impact of city actions related to: building energy codes, public transit, building energy incentives, rooftop photovoltaics, smart growth, and municipal actions. The results indicate that by 2035, these six common city-level policy approaches could reduce nationwide carbon emissions by 210-480 million metric tons of carbon emissions per year. That is a 7-19 percent reduction in carbon emissions for the average city relative to current city-level emissions.
The report, Estimating the National Carbon Abatement Potential of City Policies: A Data-Driven Approach, illustrates the comparative impacts of city-level energy actions and helps cities better understand how their particular climate and characteristics influence these impacts. For example, by enacting more stringent building energy codes, cities could reduce building energy use by about 10 percent on average. Due to higher natural gas use in colder climates, the carbon reduction potential of building energy code policies is almost double for cities in the Midwest. Comparatively, smart growth policies are about twice as effective for carbon abatement in eastern coastal cities than in other cities due to larger urban areas and more vehicle miles traveled.
Read More (National Renewable Energy Laboratory)