Data Center Building Boom: Impact on US Utilities

As Data Center construction continues to accelerate in the United States, the credit profile of US Utilities companies is undergoing a significant change. With the prospect of large-scale, long-term power demand, we asked Cognitive Credit AI to analyse credit metrics across the key players and the long-term credit implications for the sector.

The data center building boom, fuelled by AI infrastructure investment and hyperscaler expansion, is reshaping the credit profile of US electric utilities. The demand surge is a structural positive for revenue and EBITDA growth but is simultaneously driving unprecedented capital expenditure programmes that are widening free cash flow deficits, sustaining elevated leverage, and increasing execution risk. The sector broadly carries net leverage in the 5.0x–7.0x range, with negative FCF near-universal across the peer group, reflecting the capital intensity of the current investment cycle. 

1. Demand Dynamics: Data Centers as a Structural Load Driver

Dominion Energy (Virginia Power) — Ground Zero 

Dominion Energy Virginia is arguably the most exposed utility to data center demand in the US, given the concentration of hyperscaler infrastructure in Northern Virginia (Loudoun County):

• Data centers accounted for 28% of Virginia Power's electricity sales in 2025 (up from 26% in 2024)
• Data center load has grown at a ~20% CAGR since 2016
• PJM projects 5.4% average peak annual load growth over the next decade for the PJM DOM Zone, primarily driven by data centers
• From January 2027, Virginia Power will require 14-year contracts, collateral, and demand minimums for high-load customers — a credit-positive risk management measure designed to minimise stranded cost risk

Southern Company — Contracted Capacity Surge 

• Southern has contracted with new data centers and large load customers covering approximately ~9 GW of electric load since 2023, with each contract representing >100 MW annually
• Service under these contracts is expected to begin through 2028, ramping up over several years
• The traditional electric operating companies project a significant increase in electricity demand, largely driven by data centers and advanced manufacturing (EVs, batteries) 

Duke Energy — Accelerating Load Growth Trajectory

• Duke projects annual load growth of 1.5%–2% through 2026, accelerating to 3%–4% from 2027–2029, driven by record customer additions and data center expansion
• The company takes a conservative, risk-adjusted approach to load forecasting — only incorporating projects into forecasts when agreements are signed or construction has begun
• Data center arrangements are structured to align incremental infrastructure investment with the customers driving the growth

NextEra Energy — Renewable Beneficiary

• NextEra's primary exposure is as a renewable energy supplier to data centers rather than a direct distribution utility
• Its 2026–2030 capex plan of ~$94 billion (FPL: ~$59bn; NEER: ~$36bn) reflects the scale of investment required to meet growing clean energy demand, including from hyperscalers seeking renewable power purchase agreements
  
  

2. Credit Metrics — Peer Comparison (LTM as of 1Q26)

All figures in USD millions unless stated. Period: 1Q26-LTM / 1Q26 balance sheet.

3. Key Credit Themes

Elevated Leverage — Structural, Not Cyclical 

• Net leverage across the sector ranges from ~5.0x (PSEG) to ~7.1x (FirstEnergy), with most names clustered in the 5.2x–6.8x band
• This leverage is largely a function of the regulated utility model — high, predictable EBITDA margins (generally 35%–54%) support the debt load, but the capex supercycle is preventing meaningful deleveraging
• Sempra (7.0x), Dominion (6.6x), and NextEra (6.8x) are the most leveraged names, all running large infrastructure build programmes
• Constellation Energy (3.5x) is a notable outlier — as a nuclear-focused competitive generator with strong power purchase agreements from hyperscalers, it benefits from the data center boom with far less capital intensity 

Negative Free Cash Flow — Near-Universal 

• 16 out of 20 companies in the peer group are generating negative FCF on an LTM basis
• The most extreme cases are Dominion (-$7.4bn), Xcel (-$7.2bn), and Sempra (-$5.8bn), all running capex/sales ratios of 71–81%
• This means the sector is entirely reliant on capital markets (debt and equity issuance) to fund its investment programmes — a key credit vulnerability in a rising rate environment
• Only Constellation (+$1.1bn), NextEra (+$2.9bn), Eversource (+$237m), and PSEG (+$183m) are FCF positive 

Capex Intensity at Historic Highs 

• Capex/sales ratios range from ~11% (Constellation) to ~81% (Xcel Energy)
• Southern Company has increased its 5-year capex plan from $45.2bn (2024–2028) to $78.1bn (2026–2030) — a ~73% increase — averaging ~$16bn per year
• Dominion Energy Virginia has a $55bn capex plan for 2026–2030 (net of Stonepeak reimbursements)
• NextEra has committed ~$94bn for 2026–2030, including $8.7bn in firm equipment purchase commitments
• Duke is undertaking "one of the largest generation upgrade and expansion programmes in the industry" 

Revenue and EBITDA Growth — The Credit Positive 

• The demand surge is translating into visible, contracted revenue growth — a meaningful credit positive for regulated utilities
• EBITDA margins are healthy across the sector (35%–54%), underpinned by regulated rate structures
• Interest coverage ratios are generally 3.5x–5.1x, adequate but not expansive given the leverage levels
• Dominion's contract risk management (14-year contracts, collateral requirements, demand minimums from 2027) and Duke's conservative load forecasting are examples of credit-positive structural protections being put in place 

Regulatory and Execution Risk 

• The scale of investment requires constructive regulatory outcomes — rate cases, cost recovery mechanisms, and IRP approvals are critical to credit quality
• Southern Company notes inherent risks around actual capacity required, technology changes that could reduce data center power intensity, and customer creditworthiness
• Stranded cost risk is a key concern if data center demand forecasts prove optimistic — though long-term contracts and collateral requirements are mitigants

4. Standout Credit Observations

5. Summary Assessment 

The data center building boom is a net positive for the long-term credit trajectory of North American electric utilities — it provides a rare source of visible, large-scale, contracted demand growth in an industry that has historically faced flat or declining load. However, in the near-to-medium term, the credit impact is mixed:

• Positive: Revenue growth, EBITDA expansion, long-term contracted cash flows, regulatory support for investment recovery
• Negative: Unprecedented capex programmes driving persistent negative FCF, elevated leverage, heavy reliance on capital markets, execution and regulatory risk

Credit investors should focus on regulatory construct quality, contract structures with data center customers, and management's track record on capex delivery as key differentiators within the sector. Constellation Energy stands out as a unique beneficiary — leveraging its nuclear fleet to supply clean, firm power to hyperscalers with significantly lower capital intensity than its regulated peers.

This analysis was generated by Cognitive Credit AI and verified by Cognitive Credit analysts. 

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Disclaimer:  This review is based on Cognitive Credit curated financial data and company disclosures. All financial data is LTM as of 1Q26 in USD millions. Leverage and coverage ratios are as calculated by Cognitive Credit. This analysis is for informational purposes only and does not constitute investment advice.