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How electric utilities can decarbonize while meeting demand growth

Authors

Bruno Sarda

EY Americas Climate Change and Sustainability Services Leader
Shannon Roberts

EY Americas Industrials & Energy and P&U Assurance Advisory Leader

6 minute read 19 May 2026

Related topics

Power & Utilities

Energy and resources

Climate change and sustainability services

Accelerating demand is changing how electric utilities deliver, interpret and sustain near-term decarbonization progress.

In brief

Electrification is moving faster than expected, tightening grid build-out timelines and pressuring near-term rates as reliability needs increase.
Traditional ways of measuring carbon reduction progress alone may not fully reflect grid performance during a rapid infrastructure build-out.
Applying a system-level perspective can help electric utilities and stakeholders make clear judgments about transition planning, performance and credibility.

Electric utilities (utilities) are at the center of economy-wide decarbonization. As transportation, buildings and industry electrify, progress increasingly depends on utilities’ ability to deliver clean, reliable and affordable electricity at scale. After decades of relatively stable electricity demand, this ability is now being tested by accelerating demand growth, driven in particular by end users’ replacement of combustion with electrification, as well as the rapid expansion of data centers. This growth is outpacing the assumptions embedded in earlier decarbonization plans and increasing the execution risk for utilities responsible for delivering emissions reductions.

For a deeper examination of the dynamics shaping utility decarbonization today, including the role of systems thinking and practical considerations for maintaining accountability during periods of rapid change, explore the full white paper.

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While informed by both global and US climate and reporting frameworks, this analysis focuses on conditions shaping US electric utilities.

Three dynamics define the current transition environment for US utilities:

Load growth is now placing new pressure on planning, permitting and delivery timelines, tightening the window for aligning the infrastructure build-out with decarbonization goals. What had once been a relatively predictable planning environment is now characterized by greater uncertainty around where, when and how quickly new demand will materialize.
Sustaining the long-term emissions ambition now depends on continued investments in grid modernization, capacity and power system flexibility. Transparent transition planning can clarify how near-term outcomes support longer-term decarbonization, including the role utilities play in enabling emissions reductions across other sectors. In this environment, emissions outcomes reflect not only resource choices, but also the pace at which the infrastructure can be expanded to serve electrification.

Why this moment matters for utility decarbonization

Climate and decarbonization

Supporting organizations with physical and transition risks associated with climate change, and assisting them with market and regulatory changes.
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The conditions shaping utility decarbonization have shifted in ways that affect how near-term outcomes are delivered, compared and interpreted. As these changes take hold, assumptions embedded in earlier emissions reduction plans are increasingly being overtaken by current power system realities.

At the same time, the long-term climate ambition in the power sector remains anchored in sustained reductions in absolute greenhouse gas (GHG) emissions, consistent with science-aligned pathways. Electric utilities continue to plan toward these long-term ambitions. What has changed is not the ambition itself, but the environment in which progress must be delivered.

Together, these dynamics can make near‑term results harder to compare across utilities. Those serving flatter or declining loads may show faster absolute emissions reductions, while utilities scaling their infrastructure for electrification may exhibit slower or more volatile emissions trajectories over the same period. Interpreting these differences requires distinguishing the power system expansion effects from shifts in the underlying ambition or execution while still maintaining clear expectations for delivery against emissions reduction targets.

Looking across interconnected elements of the electricity grid helps explain how demand growth, grid capability and investment timing interact. This lens may help interpret why progress toward near-term emissions reductions may appear stagnant even if the long-term ambition remains aligned, while still maintaining clear expectations for delivery against emissions reduction targets as conditions evolve.

Systems thinking supports a decision-useful interpretation

Stakeholders increasingly need ways to interpret emissions trajectories that go beyond point-in-time results. A systems-based perspective helps link reported outcomes to the factors that influence them, including demand growth, infrastructure availability and the sequencing of investments.

This perspective is particularly relevant for decision-makers navigating near-term trade-offs. For utility leaders, it supports more integrated judgment across sustainability, finance, operations and regulatory functions by clarifying how near-term signals relate to longer-term objectives. For investors, it helps distinguish the transitional effects associated with power system expansion from departures in the strategy or ambition.

Importantly, this interpretive lens complements, rather than replaces, established corporate GHG accounting. Emissions inventories and targets remain the foundation for disclosure and accountability. Systems thinking adds contextual clarity by situating those results within the operating context in which they occur.

The foundations of credible near-term progress

In this phase of the transition, the credibility of reported emissions outcomes depends on explaining the progress clearly and consistently to stakeholders. Practical checkpoints help frame how near‑term outcomes are interpreted, while clear priorities guide how progress is delivered over time.

Three checkpoints for credibility during the transition

The checkpoints below are intended for those interpreting and evaluating the reported results, including investors, analysts and other stakeholders, to help improve comparability while clarifying when additional context is needed.

Attributional emissions accounting remains the foundation of credible reporting. Interpretation should reinforce, not blur, established boundaries and auditability, while connecting emissions trends to the strategy, capital allocation and implementation assumptions.
Supplementary indicators, such as the emissions intensity, resource mix, capital allocation and grid expansion, can help stakeholders interpret reported results in the context of system transformation without substituting for absolute emissions accountability.

Four priorities shaping transition outcomes

Informed by these checkpoints, the priorities below are directed at utilities and other system actors responsible for planning, investment and execution as they shape how decarbonization progress unfolds during this phase of the transition.

Lindsay Burton and Yarden German also contributed to this article.

Summary

Electric utilities are being asked to deliver emissions reductions while expanding the role of electricity across the economy. Meeting this dual responsibility depends not only on the long‑term ambition, but on how near‑term progress is planned, interpreted and communicated as systems evolve. Applying a system‑level perspective can support better decision‑making and maintain credibility during this critical phase of the transition.

About this article

Authors

Bruno Sarda

EY Americas Climate Change and Sustainability Services Leader
Shannon Roberts

EY Americas Industrials & Energy and P&U Assurance Advisory Leader

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