DECO2—An Open-Source Energy System Decarbonisation Planning Software including Negative Emissions Technologies

The deployment of CO2 capture and storage (CCS) negative emissions technologies (NETs) are crucial to meeting the net-zero target by year 2050, as emphasised Glasgow Climate Pact. Over years, several energy planning models have been developed address temporal aspects carbon management. However, limited works incorporated CCS NETs for bottom-up at individual plant scale, which is considered in this work. novel formulation implemented an open-source system software that has work optimal decarbonisation planning. DECarbonation Options Optimisation (DECO2) considers multiperiod with a superstructural model was Python integrated user interface Microsoft Excel. application demonstrated two scenarios differ terms availabilities mitigation technologies. For more conservative Scenario 1, only available later other assumed not be available, all coal plants were replaced biomass. Meanwhile, 38% natural gas retrofitted. remaining biogas. aggressive 2, includes technologies, once again, undergo fuel substitution. close half results potential substitutions low-carbon alternatives existing power plants. Additionally, mature commercial deployment, their aiding removal minimal investment costs scenarios. indicate energy-producing (EP-NETs), e.g., biochar biomass CCS, far beneficial versus energy-consuming (EC-NETs), enhanced weathering. newly demonstrates importance determining climate change targets each period, well driving achievement mid-century.