NorthWestern Earnings Call: Growth Holds Despite Headwinds

Northwestern ((NWE)) has held its Q1 earnings call. Read on for the main highlights of the call.

NorthWestern’s latest earnings call struck an upbeat tone despite notable headwinds. Management highlighted solid adjusted EPS growth, reaffirmed guidance, strong shareholder backing for the Black Hills merger and tangible progress on its data center strategy. At the same time, they were candid about weather-driven volume shortfalls, higher costs and regulatory timing risks that are weighing on near-term results.

EPS Performance and Guidance Reaffirmed

NorthWestern reported GAAP diluted EPS of $1.03 and adjusted EPS of $1.31 for Q1 2026, with adjusted earnings up 7.4% versus Q1 2025. The company reaffirmed its 2026 EPS guidance of $3.68–$3.83 and its long-term EPS and rate base growth target of 4%–6%, underscoring confidence in its earnings trajectory despite current cost and weather pressures.

Merger with Black Hills Gains Strong Backing

Shareholders turned out in force, with about 86% of shares voting and 99.7% supporting the pending merger with Black Hills. Management also reported settlements with key intervenors in Montana, Nebraska and South Dakota, indicating that regulatory approvals are progressing and strengthening the case for the combination.

Expanding Data Center Pipeline Led by Quantica

The company signed a development agreement with Quantica, bringing its total data center development agreements to three and boosting its large-load pipeline to 1.1 GW from roughly 500 MW. Quantica’s project is expected to start ramping in early 2029 and reach full load around 2031, positioning NorthWestern to benefit from long-duration, high-demand digital infrastructure growth.

Dividend and Total Return Ambitions

NorthWestern declared a quarterly dividend of $0.67 per share, payable at the end of June 2026, reinforcing its income appeal with a roughly 4% yield on a standalone basis. Management reiterated an 8%–10% total return target built from 4%–6% EPS growth plus the dividend, and suggested upside if additional growth from data centers and regional transmission materializes.

Stable Capital Plan and No 2026 Equity Issuance

The company maintained its 2026–2030 capital plan at $3.2 billion, unchanged from prior guidance and split roughly evenly among transmission, distribution and supply investments. Crucially for shareholders, management does not expect any common equity issuance in 2026, although they flagged potential equity needs in 2027 tied to new generation in South Dakota.

Wildfire Legislation Strengthens Legal Protections

South Dakota’s passage of Senate Bill 36 provides utility wildfire protections, including a bar on strict liability, aligning that state with similar protections in Montana. These statutory changes reduce legal uncertainty around wildfire exposure in NorthWestern’s two electric states and are viewed as a significant risk-management win for the utility.

Regulatory Filings Advance, FERC Decision Window Nears

NorthWestern filed its merger notice with FERC in December, starting a 180-day review window that could deliver a decision by June if timelines hold. The company has also cleared its Hart-Scott-Rodino review and has hearings scheduled in its state jurisdictions, keeping it on track for key approvals during 2026, assuming dockets continue to move forward.

Transmission and Margin Drivers Provide Cushion

Improved margins from new Montana electric rates, sales of power from its Colstrip ownership to Puget and continued transmission revenue growth helped offset some cost and volume headwinds in the quarter. These drivers underscore the importance of rate cases and bulk system transmission in stabilizing earnings for NorthWestern’s largely regulated portfolio.

Warm Winter Hits Volumes and Earnings

Montana experienced its warmest winter in more than a century, significantly reducing heating demand and usage across the system. The company estimated this weather-driven volume shortfall at a negative $0.17 per share versus normal, a sizable drag that muted otherwise solid operating performance in the quarter.

Higher Colstrip Costs and Limited Recovery

Incremental ownership at Colstrip is adding about $48 million of annual operating costs, or roughly $12 million per quarter, with Q1 showing about a $12 million increase versus the prior quarter. While roughly $8 million was offset during the period, low market power prices limited cost recovery and left about $0.05 per share of Colstrip operating expenses unrecovered in Q1.

Merger and Other One-Time Charges

Merger-related expenses weighed on results, reducing earnings by roughly $0.05 per share in the quarter. Management framed these as temporary costs tied to the Black Hills transaction process, but they still contributed to the gap between reported GAAP EPS and adjusted EPS.

Rising Operating, Depreciation and Interest Costs

The quarter also reflected broader cost inflation, including about $4 million of higher labor and benefits, as well as increases in depreciation and interest expense. These rising costs partially offset the benefits from new rates and transmission, highlighting the need for continued regulatory support and cost discipline.

Regulatory Timing Uncertainty in Montana

The 2024 Montana rate case remains under reconsideration, leaving some uncertainty around the timing and scope of the next rate review in that key jurisdiction. In addition, stay-out provisions embedded in settlements in Nebraska and South Dakota influence when NorthWestern can next file for rate changes, adding complexity to its future regulatory cadence.

Data Center Execution Risks and Incentive Constraints

While the data center pipeline is growing, management acknowledged execution risks, notably land procurement delays for the Zevi project that could slow progress toward an energy service agreement. The company also expressed disappointment that South Dakota did not provide sales tax relief for data centers, which could affect the economics and pace of certain large-load projects.

Potential Equity Needs in 2027

Although 2026 should see no common equity issuance, management anticipates that equity could be needed starting in 2027 to fund incremental generation capacity in South Dakota. These investments are tied to reliability and resource adequacy obligations, making them strategically important even if they modestly dilute existing shareholders in later years.

Weak Market Power Prices Pressure Cost Recovery

Lower-than-expected market power prices during the quarter pushed realized pricing down and constrained NorthWestern’s ability to recover some of the new costs tied to asset ownership and operations. This pricing backdrop compounded the earnings impact of higher Colstrip expenses, illustrating the company’s sensitivity to wholesale market conditions.

Outlook and Forward Guidance

Looking ahead, management reaffirmed 2026 EPS guidance of $3.68–$3.83 and long-term rate base and EPS growth of 4%–6%, with potential for 5%–7% if the Black Hills merger closes and synergies are realized. They reiterated the $3.2 billion capital plan through 2030, expect no equity issuance in 2026, see equity needs emerging in 2027 and continue to target an 8%–10% total return, boosted by a roughly 4% dividend yield and growing data center and transmission opportunities.

NorthWestern’s call balanced optimism about strategic progress with realism about near-term headwinds, leaving investors with a cautiously constructive outlook. Solid EPS growth, merger momentum, a larger data center pipeline and supportive wildfire legislation provide a strong foundation, even as weather, cost inflation and regulatory timing inject volatility into quarterly results and capital plans.