Episode Summary
Executive Summary: The episode argues that U.S. coal is still a major source of emissions, pollution, and ratepayer costs because utilities often run coal plants uneconomically to preserve them, and Trump’s DOE is now amplifying that behavior through emergency orders and a flawed reliability report. Guest Frank Rambo explains why this persists, how it harms renewables and consumers, and how state-level advocacy can challenge it.
Main Topics: Coal’s continuing role in the U.S. grid (Priority: 5/5): Despite long-term decline, coal still remains a meaningful share of electricity generation and a major share of emissions. The hosts stress that coal is not “over” and still matters for climate and air quality. Uneconomic dispatch and utility incentives (Priority: 5/5): Rambo explains how utilities sometimes run coal plants even when cheaper power is available, because pass-through cost recovery, inertia, and shareholder incentives favor keeping plants alive. Consumer and market harms (Priority: 5/5): Running coal out of merit order raises costs for ratepayers and can crowd out renewables by clogging transmission lines and causing curtailment. State-level regulation and PUC battles (Priority: 4/5): The conversation details how fuel-cost recovery dockets and prudency reviews can disallow costs, with the Michigan PSC as a concrete example of success. Trump administration pressure on coal (Priority: 5/5): The DOE reliability report and emergency orders are presented as an aggressive effort to force coal plants online, despite opposition from utilities, regulators, and grid operators. Communications and political framing (Priority: 4/5): Rambo argues the strongest public argument is affordability: utilities should not charge customers for coal when it is not the cheapest option.
Key Arguments: Coal remains a large climate and pollution problem: even with its decline, it still produces a substantial share of U.S. CO2 emissions and remains the biggest source of several power-sector pollutants. Utilities run coal uneconomically because fuel costs are usually passed through to ratepayers, and there is a strong incentive to keep coal plants looking “used and useful” so they remain recoverable assets. In market regions, uneconomic coal dispatch can be measured directly and has real grid consequences, including curtailing cheap wind power when coal occupies transmission capacity. The practice is costly: it forces customers to pay more than necessary and can disfavor new renewable investment because developers avoid congested grids where cheap power cannot reliably move. State PUCs can stop some of this through prudency reviews and disallowances, as shown by Michigan rejecting part of Indiana Michigan Power’s coal cost recovery request. Trump’s DOE report has no standalone legal force, but emergency orders under the Federal Power Act can compel specific plants to keep running, creating immediate additional costs. The administration’s argument that coal is needed for reliability is weak because coal plants are increasingly cycled and therefore less reliable, and because demand flexibility and other resources can address much of the risk. The best near-term strategy is to attack uneconomic dispatch at the state level as both a consumer-protection and climate measure.
Data Points: Coal’s share of U.S. electricity: about 15% - Coal’s current share of total U.S. electricity generation, down from 50% in the late 1990s. Coal’s share of U.S. CO2 emissions: 20% - Guest states coal still accounts for about one-fifth of national CO2 emissions. Number of U.S. coal-fired power plants: almost 200 - The episode opens by noting the country still has nearly 200 coal plants. Wind curtailment linked to uneconomic coal: 25% - NRDC and Grid Strategies found that 25% of curtailed power in a Midwestern market study was due to uneconomic coal clogging the system. Michigan utility coal cost request: roughly $100 million - Indiana Michigan Power sought recovery of coal fuel costs in a Michigan PUC proceeding. Michigan PSC disallowance: about $10–11 million - The commission rejected part of the utility’s requested coal cost recovery as imprudent. Excess cost of uneconomic dispatch in 2024: $5 billion - RMI’s tool estimated the 2024 excess cost of the practice to utilities and customers. Ten-year excess cost: $24 billion - RMI estimated cumulative excess costs over the last decade. Emergency order duration: 90 days - One of the DOE emergency orders kept a coal plant online for a limited 90-day period. Coal black carbon global warming potential: up to 3,200x CO2 over 20 years - The guest cited estimates of coal black carbon’s potency on a 20-year horizon. Potential demand flexibility: 75–100 GW - Rambo noted that modest load flexibility from data centers could create room for 75 to 100 gigawatts of demand.
Pivotal Quotes: "Coal is public enemy number one on virtually any metric you want to pick." — David Roberts: Summing up coal’s harms across climate, pollution, and cost dimensions. "Utilities are out there running coal anyway, even though it's not the next step, even though it's not the next most expensive." — David Roberts: Describing the core practice of uneconomic dispatch. "This is about reducing CO2 emissions and saving costs. That doesn't require building anything. It doesn't require a new policy. It doesn't require law." — Frank Rambo: Explaining why the issue is immediately actionable at the state level.
Implications: The episode frames coal dispatch as an urgent, winnable state-level fight that can cut emissions and lower bills now. Trump may intensify resistance, but the cost argument gives clean-energy advocates a strong public narrative.