Creating a data model for optimal remediation

Coal Combustion Residuals Scenario Planning Analysis and Data Model

The U.S. Environmental Protection Agency mandates that utilities proactively and safely manage coal combustion residuals (CCR) deposits. We supported a confidential utility client in addressing these regulations and state-specific requirements by assessing a range of remediation scenarios for over 100 CCR units.

Remediation activities for each CCR unit included capping the disposal area, removing the ash material, water management activities, installing solar panels, and ash harvesting for cement production. Each scenario impacts capital and operational costs, cash flow, timelines, carbon footprint, and regulatory risk. To optimize decision-making, we quantified and evaluated each scenario.

Our strategic advisory services and technical team developed a unified sense of information for the utility staff. This involved evaluating data availability, dependencies, and governance processes to create a comprehensive scenario model. The model enabled utility staff to assess plants, CCR units, scenarios, and outcomes, allowing for quick and confident decision-making on cost, carbon footprint, schedule, and regulatory risk.

These efforts supported our client in improving their management of a multi-billion dollars capital program for long-term management of their CCR units. The model streamlined the comparison of over 10 remediation options per CCR unit, enhancing our client’s ability to make data-driven choices, allocate resources effectively, manage costs, and comply with regulatory requirements.