Michigan’s Shaky Shift to Alternative Energy Sources

Reliability Concerns in Michigan’s Energy Transition

Amid Michigan’s energy transition, concerns are growing about the reliability of its future power supply. The 2023 Regional Resource Assessment from the Midcontinent Independent System Operator (MISO) highlights a significant gap between available energy capacity and projected demand in both the Upper and Lower Peninsulas.

Supply Shortfalls and the Risk of Blackouts

Even with conservative forecasts, Michigan’s energy supply still falls short of demand. This imbalance, combined with the state’s fixed pricing mechanisms, could lead to energy shortages and potential blackouts.

A key concern is the growing dependence on less predictable energy sources, which often replace more reliable ones. The energy sector continues shifting from controllable, dispatchable resources to weather-dependent, variable generation. This transition is largely driven by the goal of lowering carbon emissions. However, MISO leaders warned during a recent U.S. House Subcommittee hearing that the shift raises serious reliability concerns.

The Role of Conventional Resources in Grid Stability

To maintain grid stability, MISO emphasizes the importance of key attributes: rapid startup, flexible output, and sustained, high-volume generation. “Historically, conventional resources like coal and natural gas have excelled in these areas but are being phased out in favor of renewables that are less reliable and highly dependent on uncontrollable weather conditions,” explains MPGA Executive Director Derek Dalling.

Retirements Outpace Replacements Across the Region

MISO’s findings show that traditional power plants are retiring faster than new sources can replace them. This trend creates growing reliability risks. While Michigan continues to pursue wind and solar projects, these sources still fall short of meeting the state’s full energy demand.

Looking to neighboring states won’t offer much relief. Many face similar energy constraints. By 2027, every Great Lakes state is expected to deal with its own supply challenges.

Forthcoming Report Calls for Reassessment

The Mackinac Center’s upcoming report will explore these risks in greater depth and assess their impact on Michigan’s energy grid. The report urges policymakers to reassess current strategies to protect grid stability and safeguard residents across the Great Lakes region during this critical energy transition.