NYISO BLOG

Recent Posts

Winter Storm Fern, Cold Front Test New York’s Grid

When Winter Storm Fern swept across New York, it brought more than white‑out conditions and biting temperatures. The prolonged event also revealed how weather, aging generation, and fuel market pressures can collide to challenge the grid and raise electricity prices.

Podcast Ep. 42: Least-Cost Reliability: Even When Fuel Prices Run High

Electricity prices are rising across New York, and understanding what drives those costs has never been more important. In this Power Trends podcast, NYISO Vice President of Market Structures Shaun Johnson breaks down the factors shaping today’s electricity supply charges and explains how wholesale markets produce the most cost-efficient solutions to meet consumer demand.

Explainer: Impact of National & Global Conditions on Electricity Prices in NY

This white paper explains that higher natural gas prices, growing demand from large loads, aging power generation resources, cold weather, and supply chain challenges are placing upward pressure on electricity costs

VIDEO: What’s Behind Rising Electricity Prices in New York

Watch now.

Natural Gas Prices This Winter: What It Means for Grid Reliability and Consumers in New York

As winter sets in, high natural gas prices are once again poised to drive up both heating bills and electricity costs across the state.

Podcast Ep. 41: Planning for Multiple Futures

New York’s electric grid is at an inflection point. In the latest Power Trends podcast, Senior Vice President of System and Resource Planning Zach Smith unpacks two critical reliability reports recently issued by the NYISO: the Comprehensive Reliability Plan (CRP) and the 2025 Third Quarter Short-Term Assessment of Reliability (STAR).

Modernizing Our Generation Fleet: Replacing Aging Generation Can Cut Emissions, Costs

In a time when reducing the grid’s carbon emissions is a priority, building and upgrading gas plants may seem counterintuitive. But in fact, it is a strategy that can support the ongoing build-out of renewables, including solar, wind, and battery storage.

CRP: Expanded Planning Framework Needed to Capture Emerging Risks

The electric grid is undergoing a transformation unlike anything seen in its history. New York’s ambitious climate goals, rapid electrification, new renewables, and the rise of large-scale energy users are reshaping demand patterns and resource availability.

Emergency Tools to Stabilize Grid Are Becoming More Common – Why That’s a Problem

New data shows that New York’s grid operators are leaning more heavily than ever on emergency tools—known as Emergency Operating Procedures (EOPs) to keep the lights on.

New York City’s Grid Is at Risk – We Must Act Now

The following op-ed was originally published in the New York Daily News on Dec. 15, 2025.

Key Insights from NYISO's Winter Reliability Assessment

As New Yorkers brace for another winter, the New York Independent System Operator (NYISO) has released its 2025 Winter Reliability Assessment – a critical snapshot of how the state’s electric grid is expected to perform during the coldest months of the year. This document is a roadmap for reliability and resilience in an era of rapid energy transition.

How Capacity Factors Impact New York’s Energy Future

As the days grow shorter and winter draws near, it’s a good time to examine the critical role of capacity factors in assessing generator output.

EAC Explores Supply, Transmission Solutions to Grid Challenges at Fall Meeting

At its October meeting, NYISO’s Environmental Advisory Council explored growing challenges in grid planning amid shifting federal headwinds, aging infrastructure and soaring electricity demand.

Electricity Prices Are Up in New York. What Are the Drivers?

From aging infrastructure and extreme weather to electrification and the explosive growth of AI-driven energy demand, multiple forces are converging to push electricity rates higher.

Why the NYISO Was Created: Powering New York’s Future

After decades of rising retail electricity prices, the New York Independent System Operator (NYISO) was established in 1999 to manage the state’s electric grid, improve reliability, and establish efficient, wholesale electricity markets.

Energy-intensive Projects in NYISO’s Interconnection Queue

Large energy-intensive economic development projects such as data centers, chip fabrication facilities, and traditional manufacturing are driving up demand for electricity in New York. The map above shows the large load projects currently seeking to connect to New York’s grid.

Since 2019, Clean Energy Projects Totaling More Than 14,000 MW Have Completed the Interconnection Process

3,493 MW are under construction

Understanding Real-Time Energy Prices

During periods of extreme weather – like the heatwave in late June – real-time energy prices can rise and fall dramatically. But these prices, shown on the NYISO Markets Real-Time Data Dashboard, don’t necessarily correlate with the number reflected on consumers’ bills.

VIDEO: People Who Power New York: A Global View on the Grid in Transition

As the child of a diplomat, Udayan Nair traveled with his family across continents, experiencing different cultures and witnessing firsthand the challenges of a changing world.

Podcast Ep. 40: Inside the Control Room During June’s Heatwave with Emilie Nelson

In Episode 40 of the Power Trends podcast, NYISO Executive Vice President and Chief Operating Officer Emilie Nelson offers a behind-the-scenes look at how the grid was managed during June’s heatwave, which brought record-setting temperatures across the Northeast. Nelson walks through the critical decisions and emergency measures that helped maintain adequate supply margins across New York.