Written by Hillary Bright, Executive Director of Turn Forward
The United States is entering an era of electricity demand growth not seen in decades, and the power grid is unprepared. Rapid expansion of data centers, advanced manufacturing, and electrification is driving unprecedented load growth just as the system faces tightening constraints on reliability and affordability. Without the timely interconnection of new generation, the country faces a stark choice: tolerate declining grid reliability or slow the economic growth that underpins job creation, national security, and global competitiveness. Either path would harm American interests, threatening public health and safety while putting at risk U.S. leadership in artificial intelligence, domestic manufacturing, and critical supply chains.
At the same time, it is increasingly clear that no single energy resource can meet this challenge on its own. The familiar “all-of-the-above” mantra is giving way to a more pragmatic “everything-that-works” test, as policymakers and system operators confront real-world limitations across technologies. Natural gas – a cornerstone of the U.S. power system – is constrained by turbine backlogs and fuel infrastructure limits; solar and onshore wind require significant land and transmission expansion; and energy storage depends on having sufficient generation to charge it. Against this backdrop, two recent independent analyses released through Turn Forward’s Energy Research Exchange—both by Charles River Associates—point to an important conclusion: offshore wind is emerging as a regionally significant reliability resource, particularly for the Northeast and other coastal regions. Together, these studies move the conversation beyond offshore wind’s climate benefits and squarely into the realm of practical solutions to the urgent and growing challenge of U.S. grid reliability.
Reliability Risks Are Changing, and Planning Must Catch Up
Historically, grid reliability planning has revolved around summer peak demand. Heat waves drove heavy air-conditioning use, and planners designed capacity around those assumptions. But that paradigm has shifted. In regions like New York and New England, summer demand spikes remain significant, but winter reliability is becoming the dominant challenge.
Cold wintertime mornings and evenings now pose some of the highest-risk conditions for system stress. During these periods, electricity demand spikes while natural gas supply often becomes strained by the dual demands of power generation and home heating. The grid of the future must be designed to function adequately with this new reality in mind.
This is where offshore wind’s unique performance characteristics become critical to the grid. Offshore wind produces strongly and at high capacity factors during winter months and overnight hours – precisely when reliability risks are increasing. The result is a resource that delivers power when needed most, not just when conditions are ideal.
Regional Impacts: ISO-NE and NYISO
ISO New England and NYISO face a unique convergence of challenges: rising winter demand, constrained fuel supply, aging infrastructure, and limited options for new large-scale onshore generation near load centers.
The findings show that offshore wind’s proximity to demand, combined with its seasonal production profile, allow it to play an outsized role in regional reliability. While offshore wind does not eliminate the need for other resources, it does change the balance of the system, reducing dependence on fuel-constrained generation options during the highest demand, most vulnerable hours.
This distinction is important. Grid reliability is not about any one technology replacing another. It is about assembling a portfolio of resource options that together perform well under stress. That’s the real value-add of offshore wind: it complements traditional energy sources by reducing the pressure placed on them during times of peak need. That diversification is exactly what grid planners need in a system undergoing rapid change.
Cost Stability is a Reliability Issue
Cost and reliability are inseparable. When energy systems are strained, consumers feel it first. In the Northeast, these dynamics are now especially pronounced during winter months. When natural gas infrastructure is constrained, competition between power generation and heating demand can drive sharp cost increases.
Offshore wind helps address this situation by reducing the system’s reliance on fuel constrained generation during high-risk periods. Because offshore wind is fuel-free, its costs are insulated from commodity price swings.
Research indicates that increasing offshore wind penetration in the Northeast can lead to meaningful price reductions – roughly 10% during certain high-stress periods. Diversifying the resource mix with offshore wind can strengthen both the economic and operational resilience of the system.
Offshore Wind Makes Sense for Energy Decision-Makers
Taken together, these analyses tell a clear story: offshore wind aligns with the reliability needs of a modern grid, particularly in coastal regions where demand growth and infrastructure constraints are most pronounced. The implications for policy and planning are significant.
First, offshore wind should be treated as a core reliability resource, not a marginal clean-energy add-on. That means fully integrating it into long-term resource adequacy assessments and transmission planning.
Second, regional coordination matters. Offshore wind’s benefits will be put to the best use when states, grid operators, and federal agencies plan together, rather than project by project. When grid operators don’t have to borrow power from neighboring grids, everyone benefits from the increased reliability and availability of electrons.
Finally, our thinking about reliability planning must evolve. The grid we are building today is not meant to address the needs of the past, and resources must be evaluated based on how they perform under today’s conditions and stressors.
Offshore wind will not solve every grid challenge on its own. But the evidence is clear: in highly populated, high demand coastal areas of the U.S., it is part of the solution to the reliability challenges we are increasingly facing.
About the author
Hillary Bright is the Executive Director of Turn Forward, where she leads bipartisan advocacy efforts to advance offshore wind in the United States. Prior to her role at Turn Forward, Hillary spent three years as U.S. Vice President for renewables at the energy consultant firm Xodus. She also has prior experience as State Policy Director at BlueGreen Alliance and as an economic development specialist at the Department of Energy.