Delaware’s Energy Squeeze: Rising Demand, Fewer Power Plants, and Tough Choices Ahead

Delaware’s electric grid is built on a simple but demanding principle: electricity must be generated at the same moment it is consumed. Unlike other resources, it cannot be stored at scale. This just-in-time structure leaves little margin for error as demand rises and generation capacity declines.

That challenge is becoming increasingly urgent. PJM Interconnection, the regional organization responsible for maintaining electric reliability across Delaware and much of the Mid-Atlantic, has warned that parts of the grid could face shortages as early as June 1, 2026. According to PJM, electricity demand is growing faster than new reliable generation is being added, raising the risk of higher prices and service disruptions.

What Is Driving Higher Electricity Demand

Several overlapping trends are pushing electricity use sharply upward. Data centers, which require enormous and continuous amounts of power, are expanding rapidly across the region. At the same time, transportation, home heating, water heating, and cooking are increasingly shifting away from gasoline, oil, propane, and natural gas toward electricity.

While demand accelerates, Delaware’s supply of reliable power has moved in the opposite direction. Major generating facilities that once provided dependable, around-the-clock electricity have been retired, including the Indian River Power Plant near Millsboro, which closed in early 2025. The loss of such plants reduces the state’s ability to respond to spikes in electricity use during extreme weather or periods of high demand.

The combined effect is a growing mismatch between electricity needs and dependable in-state generation.

Climate Policy and Electrification Pressure

Delaware’s energy trajectory is closely tied to its climate policies. The state adopted a Climate Action Plan in 2021, followed by the Delaware Climate Change Solutions Act of 2023. That law requires statewide greenhouse gas emissions to fall 50 percent below 2005 levels by 2030 and to reach net-zero emissions by 2050.

To move toward those targets, state policy has emphasized widespread electrification. Transportation policy has been one focal point. Delaware adopted vehicle emissions regulations aligned with California’s Advanced Clean Cars II program, which would have required an increasing share of new vehicle sales to be zero-emission beginning in model year 2027. After taking office, Governor Matt Meyer announced he would not enforce the electric vehicle sales mandate, citing concerns about limiting consumer choice, according to WHYY.

Beyond transportation, the Climate Change Solutions Act directs agencies to reduce carbon dioxide, methane, and other greenhouse gas emissions across the power, building, industrial, and transportation sectors. While the law does not immediately prohibit fossil fuel use, its long-term net-zero requirement implies a broad transition away from gasoline, diesel, coal, natural gas, and propane.

Each of these shifts increases reliance on electricity, adding pressure to a grid already facing supply constraints.

Grid Reliability Warnings

PJM has projected a sharp rise in electricity demand by 2030, driven largely by large load additions such as data centers. The grid operator has warned that without sufficient new dispatchable generation, the system could face capacity shortfalls.

Such shortfalls increase the likelihood of brownouts or blackouts and tend to push electricity prices higher as supply struggles to keep pace with demand.

Why Reliable Power Matters

A stable electric grid depends on dispatchable energy sources—power plants that can be turned on, turned off, or adjusted as needed. Unlike intermittent resources such as wind and solar, dispatchable sources provide electricity when it is required, not only when conditions allow.

Natural gas, coal, and nuclear power have historically played this role. As older facilities retire and are not replaced with equivalent firm capacity, grid operators have fewer tools to manage peak demand and maintain reliability.

Nuclear energy is increasingly discussed as a potential long-term solution. The industry has shifted toward small modular reactors (SMRs), which are designed for factory production, shorter construction timelines, and enhanced safety systems. SMRs can be deployed incrementally, allowing capacity to grow alongside demand rather than requiring massive upfront investment.

The Limits of Intermittent Energy

Delaware’s recent energy policy has heavily emphasized wind and solar power. While these sources can contribute to emissions reduction goals, they do not offer the same reliability as dispatchable generation. Their output depends on weather conditions, limiting their usefulness during periods of peak demand or adverse conditions.

In addition, renewable energy relies on subsidies and compliance mandates that increase electricity costs, which are ultimately passed on to consumers through higher rates and delivery charges.

Legislation Before the General Assembly

Two bills currently under consideration would directly affect electricity costs and grid reliability.

• Senate Bill 65 would withdraw Delaware from the Regional Greenhouse Gas Initiative (RGGI), a multistate carbon trading program for power plants. Supporters argue that leaving RGGI would reduce compliance costs passed on to consumers, help preserve in-state generation, and strengthen grid reliability. Pennsylvania has already taken similar steps to exit the program.

• House Bill 80 would roll back Delaware’s Renewable Portfolio Standard to 10 percent and freeze it at that level for the next decade. The current standard requires utilities to obtain a growing and increasing share of electricity from renewable sources. Reducing the mandate would help stabilize electricity prices while still allowing renewables to remain part of the energy mix.

Tough Choices Ahead

Delaware faces an increasingly complex energy challenge. Electricity demand is rising due to population growth, data center expansion, and electrification policies, while dependable local generation has declined. This combination leaves the state more exposed to price volatility and reliability risks.

Small modular nuclear reactors offer one potential long-term path to restoring reliable, around-the-clock power while supporting grid stability. In the near term, however, legislative decisions will play a decisive role. Choices about renewable mandates, carbon programs, and access to dispatchable energy will determine whether Delaware can meet rising electricity demand without placing an unsustainable burden on households, businesses, and the electric grid.

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