Strategic Pathways and Analytics for Tactical Decommissioning of Portions of Natural Gas Infrastructure in Southern California
This project will develop multi-disciplinary and objective analytical framework for decision makers to decommission portions of natural gas infrastructure in Southern California in an equitable and cost-effective way.
This project developed an objective analytical framework to identify where gas system decommissioning and electrification in Southern California will (1) serve the interests of affected communities, (2) lead to net economic and societal benefits, and (3) be plausible under a wide range of possible future conditions. The project team collected stakeholder decision criteria and equity concerns via interviews and workshops. Community stakeholders identified issues of concern such as cost allocation, presence of reliable engineering data, consideration of non-cost effects on customers, and consideration of greenhouse gas emissions and air quality. Informed by these decision criteria, the project team built a decision support tool to help stakeholders identify strategic sites for decommissioning. Within the tool, the project team can estimate costs and benefits of decommissioning across pre-meter costs, post-meter costs and benefits, ratepayer impacts for gas utility customers, ratepayer impacts for electric utility customers, and other non-cost concerns such as equity. Finally, the project team used the tool to conduct a deliberative democracy workshop to identify strategic sites for decommissioning. This approach increased trust in experts and local communities. The project team has completed a set of Guidelines for Strategic Decommissioning of Gas Infrastructure in Southern California. The project team is completing the Final Report and finalizing Pilot Project Applications for future gas decommissioning projects.
The project will develop a community-level, stakeholder-informed, multi-disciplinary and objective analytical framework to identify locations in Southern California where decommissioning can occur in a just, equitable, and cost-effective way. The project will bring together detailed models of the gas system with data on the socioeconomic conditions of candidate communities to evaluate different decommissioning sites and approaches and work directly with stakeholders in Southern California communities in Los Angeles County in a series of workshops to understand the key needs and concerns of gas customers and then evaluate the different decommissioning alternatives along cost, viability, and equity lines.
This Agreement will result in ratepayer benefits of lower costs by estimating and comparing the outcomes of different decommissioning strategies under a wide range of plausible futures, thus supporting selection of decommissioning strategies that will ensure ratepayer benefits as California transitions away from fossil gas.
Estimating and comparing the outcomes of different decommissioning strategies under a wide range of plausible futures will help ensure a more reliable gas system as communities transition to electrification.
Key Project Members
Institute of Gas Technology dba GTI Energy
University of California Los Angeles, Institute of the Environment and Sustainability, Los Angeles Regional Collaborative
Southern California Gas Company (SoCalGas)