The Stellar Development Foundation partnered with PwC US to create a blockchain sustainability assessment framework. Applying it to Stellar, they found the network uses just 481,324 kWh annually with 173,243 kg CO2 emissions, equivalent to 33.7 U.S. homes. SDF committed to offsetting the network's historical carbon footprint through carbon dioxide removal.
The Stellar Development Foundation enlisted PwC US to develop the first-of-its-kind framework for assessing blockchain protocols' electricity consumption and emissions. The framework evaluates electricity use, greenhouse gas emissions, e-waste, consensus mechanisms, and research gaps. When applied to Stellar, findings showed the network's low environmental impact: 481,324 kWh annual electricity consumption and 173,243 kg CO2 emissions yearly, equivalent to 33.7 U.S. homes' electricity use. Stellar achieves this through its Stellar Consensus Protocol, which uses proof-of-agreement with no mining. SDF committed to paying for carbon dioxide removal to offset the network's historical footprint since 2015 and will work with ecosystem companies to offset future emissions annually.
