Source: Daniel Schwen, Indiana State Capitol, 2008, https://commons.wikimedia.org/wiki/File:StateCapitolIndiana.jpg.
Client: Sierra Club
Authors: Tyler Comings, Joshua R. Castigliego, and Jordan Burt, PhD
September 2025
Principal Economist Tyler Comings, Senior Researcher Joshua Castigliego, and Researcher Jordan Burt, PhD, co-wrote comments on the Duke Energy Indiana 2024 Integrated Resource Plan (IRP) with Sierra Club. The comments argue that Duke should have chosen a different preferred plan that was lower-cost and lower-risk--a portfolio with a lower gas buildout and that converted the Edwardsport coal plant to natural gas as soon as feasible.