Utilities Sector AI Power Demand Thesis Heads Into Q2 2026 Earnings

The utilities sector has been one of the more surprising performers in the equity market through April 2026 with the SPDR Utilities Select Sector ETF XLU up 11.4 percent year to date through Friday April 24, ahead of the S&P 500 broad index at 9.7 percent. The driver is straightforward: artificial intelligence data center construction is creating a sustained surge in baseload electricity demand that the US grid was not built to deliver, and the utilities sitting in front of that demand are repricing their contracts and capital plans accordingly. Q2 earnings season for the sector begins Thursday May 1 with NextEra Energy and continues through mid May with Constellation Energy, Vistra, AES, and the regional integrated utilities.

The data center build out is the central driver. Hyperscale operators including Amazon AWS, Microsoft Azure, Google Cloud, and Meta announced 2026 capital expenditure plans aggregating to roughly $385 billion through 2027, with electricity intensive AI training and inference workloads representing the dominant share. The Electric Power Research Institute estimated in February 2026 that US data center electricity consumption will reach 9.1 percent of total US power demand by 2030, up from 4.4 percent in 2023. Annual demand growth from this category alone is projected at 13.8 percent through 2030 versus 0.5 percent average from 2010 through 2023.

The utility companies best positioned to capture the demand surge are the merchant generators and regulated utilities with adjacency to data center concentration. Vistra Energy operates the largest US power generation fleet with 41 gigawatts of capacity and significant nuclear assets through its Comanche Peak and Beaver Valley plants. Constellation Energy operates the largest US nuclear fleet with 22.4 gigawatts of carbon free capacity. NextEra Energy operates the largest US renewable generation fleet plus regulated Florida Power and Light. The trio captured the largest share of new data center power purchase agreements signed in 2025 according to Wood Mackenzie.

Nuclear power has emerged as the preferred AI baseload solution. Constellation signed a 20 year power purchase agreement with Microsoft in September 2024 to restart Three Mile Island Unit 1 as the Crane Clean Energy Center. Talen Energy signed a 1.92 gigawatt nuclear PPA with Amazon in March 2024 for a Pennsylvania campus. Vistra signed a 5 gigawatt deal with an unnamed hyperscaler in late 2025. The premium pricing for these contracts ran 2.5 to 4.0 times the prevailing wholesale market price reflecting the urgency of the buyers and the scarcity of carbon free baseload supply.

Small modular reactor deployment timeline is also affecting the thesis. NuScale Power received NRC design approval in 2023 and signed its first commercial customer in 2024. X-Energy completed its $1.02 billion IPO Friday April 24 with Amazon as anchor investor and listed on Nasdaq under ticker XE, opening up 27 percent. The first commercial SMR units in the US are not expected to come online before 2030, meaning near term AI power demand will be met by existing nuclear, natural gas combined cycle, and increasingly by renewable plus battery storage hybrids. Investors who want SMR exposure should size positions to multi year holding periods.

Regulated utilities operating in the data center concentration zones have repriced their capital plans materially in 2026. Dominion Energy serving Northern Virginia raised its five year capex plan to $54 billion, up 39 percent from the prior plan. American Electric Power serving Ohio Texas and West Virginia raised its plan to $68 billion. Duke Energy serving the Carolinas raised its plan to $90 billion. The Carolinas have become a leading data center build market alongside Northern Virginia. The increased capex translates to increased rate base which translates to higher allowed earnings for the utility under traditional rate making structures.

Earnings preview for the May releases is positive. NextEra Energy reports Thursday May 1 before the open with consensus EPS of $0.94 versus $0.91 prior year, revenue of $7.4 billion versus $6.8 billion. Constellation Energy reports Tuesday May 6 with consensus EPS of $1.78 versus $1.34 prior year. Vistra reports Tuesday May 6 with consensus EPS of $0.42 versus negative $0.18 prior year. AES Corp reports Thursday May 8 with consensus EPS of $0.32. Forward guidance and 2030 capacity contracts will be the focus areas more than the headline beats.

Risks to the thesis are real and should be tracked. The first risk is overbuild of data center capacity in the 2027 to 2029 window if AI training compute requirements stop scaling at current rates. The second risk is permitting and grid interconnection delays that limit the ability of utilities to actually deliver the contracted power on schedule. The third is rate case headwinds in jurisdictions where commercial customer rate increases face political resistance. Notable here is the Virginia State Corporation Commission October 2025 ruling that residential rates cannot be used to subsidize data center power deals, a decision being studied by other state regulators.

For investors, the cleanest exposure is the XLU ETF for diversified sector ownership at a 16.4 forward PE versus the sector five year average of 17.8. Pair trades that have worked include long Constellation short Duke Energy capturing the merchant versus regulated divergence. Single stock concentration in NextEra, Vistra, or Constellation has historically delivered 1.4 to 1.8 times the XLU return through demand cycles. The dividend yield on XLU sits at 2.9 percent versus the S&P 500 1.4 percent which provides additional cushion in a hold scenario through Q2 earnings season.