CONSOLIDATED EDISON CO OF NEW YORK INC

As indicated by the Intergovernmental Panel on Climate Change, GHG emissions from manmade sources are changing the world’s climate.

Climate change could affect customer demand for the Companies’ energy services. It might also cause physical damage to the Companies’ facilities and disruption of their operations due to more frequent and more extreme weather. See “The Failure of, or Damage to, the Companies’ Facilities Could Adversely Affect the Companies” in Item 1A. Past major weather events such as Superstorm Sandy in 2012 and Tropical Storm Isaias in 2020 caused large power outages in the Utilities’ territories and resulted in the Utilities incurring substantial response and restoration costs.

In September 2023, CECONY updated the climate change vulnerability study it issued in 2019 and O&R published its first climate change vulnerability study. The studies were developed pursuant to a New York State Public Service Law that requires all New York electric utilities to release a climate change vulnerability study and file with the NYSPSC a subsequent climate change resilience plan at least every five years. The law authorizes utilities to recover costs incurred outside of the rate plans through a surcharge and to subsequently include approved costs into base rates during the next rate case proceeding. The Utilities’ studies identified rising temperatures, inland flooding, sea level rise, storm surge, high winds, ice accumulation and extreme and compound weather events to be the biggest risks to their systems. The resulting extreme weather events brought about by climate change are manifested in increased system load, asset degradation, equipment damage and worker safety and accessibility concerns.

In February 2025, CECONY and O&R filed updated climate change resilience plans with the NYSPSC in compliance with an order that directed CECONY and O&R to re-submit their November 2023 plans to exclude proposed projects that the NYSPSC determined are not climate resilience investments. CECONY’s and O&R’s updated climate change resilience plans propose investments of $645.4 million and $184.1 million, respectively, between 2025 and 2029 to enhance the resilience of their electric systems against extreme weather events brought about by climate change. The total cost of CECONY’s and O&R’s climate resilience investments from 2025 through 2044 are currently projected to be $5,294 million and $900.4 million, respectively. These investments are subject to approval by the NYSPSC through the base rate case process. CECONY’s rate plan included $146 million for climate resilience investments from 2026 through 2028 and O&R’s rate plan included climate resilience investments of $110.4 million from 2025 through 2027. See “Rate Plans” in Note B to the financial statements in Item 8.

GHG Emissions Reporting

Based on the most recent data (2022) published by the EPA, Con Edison estimates that its direct GHG emissions constitute less than 0.1 percent of the nation’s GHG emissions. Con Edison’s estimated Scope 1 emissions of GHG during the past five years were:

(a)Estimated emissions for 2025 are based on preliminary data and are subject to third-party verification. Scope 1 emissions are GHG emitted into the atmosphere by assets owned by Con Edison. Con Edison’s Scope 1 emissions primarily include emissions from CECONY’s operation of steam, electric, and co-generation plants. Con Edison’s Scope 1 emissions also include fugitive emissions that occur when pressurized equipment and infrastructure containing a GHG has a controlled or uncontrolled emission and emissions from Con Edison’s vehicle fleet.

(b)The GHG emissions information includes those of CECONY and O&R. Con Edison is evaluating opportunities to enhance and update its emissions inventory.

Con Edison’s more than 55 percent decrease in direct GHG emissions (carbon dioxide, methane and sulfur hexafluoride) from the 2005 baseline (6.0 million metric tons) reflects emission reductions resulting from equipment and repair projects, reduced steam demand, the increased use of natural gas in lieu of fuel oil at CECONY’s steam production facilities and projects to reduce sulfur hexafluoride emissions and to replace leak-prone gas distribution pipes. As a result of the Utilities’ participation in the NYISO wholesale markets, a portion of the Utilities’ NYISO energy purchases are sourced from renewable electric production facilities. The electricity produced by renewable generation offsets the energy that the Utilities would otherwise have procured, thereby reducing the amount of electricity produced by non-renewable production facilities. The Utilities also actively promote energy efficiency and the use of renewable generation to help their customers reduce their GHG emissions.

CECONY has participated for several years in voluntary initiatives with the EPA to reduce its methane and sulfur hexafluoride emissions. The Utilities reduce methane emissions from the operation of their gas distribution systems through pipe maintenance and replacement programs and by utilizing technologies to reduce fugitive emissions from leaks or when work is performed on operating assets. The Utilities reduce emissions of sulfur hexafluoride by using improved technologies to locate and repair leaks and by replacing older equipment. In December 2024, NYSDEC adopted a regulation that will impose an emissions limit on owners of gas insulated equipment containing sulfur hexafluoride starting in 2030, including equipment used in electric power transmission and distribution.

In January 2016, the NYSPSC approved a 10-year clean energy fund to be managed by NYSERDA under the NYSPSC's supervision. Subsequent NYSPSC orders modified program targets and extended clean energy fund-related initiatives through 2030. The Utilities collect clean energy fund surcharges from their customers through the system benefit charge. The Utilities billed customers clean energy fund surch arges of $248 million, $277 million and $224 million in 2025, 2024 and 2023, respectively.

CECONY is subject to carbon dioxide emissions regulations established by New York State under the Regional Greenhouse Gas Initiative (RGGI) due to its ownership of electric generation assets. The initiative established a decreasing cap on carbon dioxide emissions resulting from the generation of electricity. Under RGGI, affected electric generators are required to obtain emission allowances to cover their carbon dioxide emissions. CECONY will purchase RGGI allowances for the sixth control period (2024 – 2026) based on anticipated emissions, which are expected to be similar to past compliance periods.

The cost to the Companies to comply with legislation, regulations or initiatives limiting GHG emissions could be substantial.