Constellation currently supplies carbon offsets from two project-type pools: National and Forestry. The nationally diversified pool of offsets contains carbon reduction value from various project types including, but not limited to, carbon capture and sequestration, energy efficiency, renewable energy generation, and others depending on availability. The domestic forestry pool of offsets contains carbon reduction value from improving management of, growing, and preserving forestry projects.  

Constellation’s carbon offsets come from reputable projects that have been verified through independent registries and support local communities across the United States. Listed below is a sample of our current offset projects:

Landfill Gas Capture 

The collection and capture of landfill gas reduces the amount of methane emissions going into the atmosphere as well as helping to reduce odors and other hazards associated with landfill gas emissions. Co-benefits can include job creation, methane reduction resulting in cleaner water and air and converting waste into renewable energy.

Project Name Location Country

Standard /


Upper Rock Island County Landfill East Moline,IL USA American Carbon Registry (ACR)
Development Authority of North County Landfill Rodman, NY USA American Carbon Registry (ACR)
Flathead County Landfill Kalispell, MT USA Verified Carbon Standard
Davidson County Landfill Lexington, NC USA Verified Carbon Standard

Renewable Energy 

Renewable energy projects that meet certain additionality (beyond business as usual) requirements can qualify to produce carbon offsets. Renewable energy generally refers to electricity supplied from renewable energy sources, such as wind and solar. These energy sources are considered renewable sources because they are continuously replenished on the Earth. Renewable energy projects that produce carbon offsets have demonstrated that their output results in a reduction of greenhouse gases beyond what would have existed in the absence of the project.  Unlike the purchase of a renewable energy certificate, the purchase of a carbon offset from a renewable energy project does not convey any right to make claims related to renewable energy purchases from the project.  


Forestry is the science and practice of establishing, managing, using, and conserving forests, trees, and associated resources in a sustainable manner.  Practices include growing and maintaining the diversity of natural forest communities, managing ecological regimes, and reducing harvesting impacts on forests.  Co-benefits include providing critical habitat for rare species and recreational use of forestry properties.

Project Name Location Country Standard/Verification
UPM Bladin Paper Company Forestry Management Grand Rapids, MN USA  American Carbon Registry (ACR)