Alliant Energy's Data Center Engine: Growth Confirmed, but Political Noise and Rate-Base Math Frame the Next Leg

Q2 2026 earnings reaffirm the upper half of guidance as Cedar Rapids loads ramp, but the real story is the 2027-29 EPS CAGR — and whether '7% plus' becomes a range.

LNT · Earnings Call · 2026-07-31

Execution Is the Message

Alliant Energy's second quarter beat the script: GAAP EPS of $0.65, strong O&M discipline, and a reaffirmed 2026 range while the company comfortably sits in the upper half. CEO Lisa Barton opened the call with the unmistakable tone of a management team that has moved beyond convincing investors of the thesis — they are now in the delivery phase. The evidence sits in the numbers: Total revenue grew 5% year-over-year on the back of higher rate base and, notably, the first phase of Iowa's data center load (Google's energized transmission service, QTS's construction progress). Operating cash flow jumped 48% yoy, a sign that the rate collection mechanisms are converting into actual cash. The quarter's standout operational detail is the large load progress. Three executed ESAs are under active construction, and the company amended its QTS Cedar Rapids agreement to accelerate the load ramp — a move CFO Robert Durian explicitly linked to higher 2027-28 revenues and, crucially, to a 'stay-out' that could extend beyond the currently committed period in Iowa. As Barton put it, “The more we grow, the longer we can do that.” — Lisa Barton, President and Chief Executive Officer · 2026-07-31

We are expecting to have higher revenues, specifically in the years 2027 and 2028. And what that really does ... allows us to not use as many tax credits through the growth phase of our business here and could potentially translate into helping us to stay out over a longer period of time.
Robert Durian, Executive Vice President and Chief Financial Officer · 2026-07-31

The Political Overhang and the Data Center Pipeline

The conference call featured a recurring motif: political scrutiny of data center development. Analysts probed Iowa's Linn County moratorium and Wisconsin's gubernatorial candidates' skepticism. Barton's response was measured but resolute — the moratorium in Linn County applies only to unincorporated areas and has 'no impact' on the company's projects, and the company's customer pledge is designed to deflect claims that existing ratepayers subsidize growth. She repeatedly invoked data center customer as a source of customer benefits, not burdens. The bigger signal, though, is the pipeline. Management reiterated the 2-4 GW of mature opportunities, and the QTS amendment plus the previously announced 370 MW ESA give concrete evidence that this isn't just PowerPoint. The third-quarter update will refresh the resource plan and potentially translate the '7% plus' EPS CAGR into a more specific range. CFO Durian on the path: “We're evaluating probably wanting to probably provide more transparency ... I think we'll have more confidence when we get to the third quarter and provide a little more specificity if that will help the investors.” — Robert Durian, Executive Vice President and Chief Financial Officer · 2026-07-31 Previously, in the Q1 call, management had already set the expectation of a full update at EEI, but today's language suggests a firmer commitment to numeric guidance. The prior call's tone is useful context: “On our third-quarter earnings call and at EEI, we will provide a full update of our resource plan, which will include providing the generation necessary to support the 370 megawatts and an update on our EPS and growth trajectory.” — Lisa M. Barton, President and Chief Executive Officer · 2026-05-01

The Financing Bridge and the Real Earnings Lever

Financing is where the QTS acceleration could cut both ways. The company has already addressed roughly $1.8B of its stated $2.4B equity need through 2029 via forward agreements, and it reiterated that the plan assumes 40-50% of any incremental capital funded with equity. That dilution is the primary reason the 12% rate base growth translates to only 7-8% EPS growth, but the load ramp's acceleration could actually *reduce* equity needs if revenues come faster than expected. Management left that door open, with Barton noting the load growth trajectory and its effect on the 'stay-out' decision. Fundamentals support the story but also highlight the leverage: Interest coverage has fallen to 1.8x from a 5.9x peak in 2010, reflecting the heavier debt load of the capex supercycle — yet the cash flow conversion is improving. The company's decision to pursue simple-cycle gas and batteries, rather than baseload, is a deliberate trade-off between speed and cost, and it aligns with the resource plan that will be fully disclosed next quarter.

Bottom Line

Alliant Energy's second quarter is a confirmation event, not a revelation. The company is executing on its promised growth, but the market is already pricing that in — the shares trade near their 52-week high with a modest drawdown. The real catalyst is the third-quarter update: if management converts '7% plus' into a specific range and backs it with accelerated load formulas, that could finally re-rate the name. Until then, the narrative remains a 'trust but verify' story, and this call provided ample reason to trust. “QTS as of today has got over 40 megawatts worth of load, which is great to see.” — Lisa Barton, President and Chief Executive Officer · 2026-07-31 — the kind of small detail that distinguishes a pipeline claim from an on-the-ground reality.