Concerning the use of carbon capture and utilization, mineralization, or sequestration technologies under the Washington clean energy transformation act.

SB 5991 modifies Washington's Clean Energy Transformation Act to allow electric utilities to count electricity from natural gas power plants using carbon capture, utilization, mineralization, or sequestration (CCUS) technology toward the state's 2030 and 2045 clean energy goals. This directly affects utilities and natural gas plant operators by expanding eligible resources to include gas generation paired with CCUS, which captures carbon emissions before they enter the atmosphere. The bill clarifies that such projects qualify as "nonemitting" under existing law, addressing reliability concerns during extreme weather events when renewable sources like wind and hydro are low. It aims to support grid stability while advancing Washington's 2050 net-zero emissions target, without changing the state's overall renewable energy requirements.