Alliant Energy Corporation · NASDAQ:LNT
Alliant Energy — Q3 2026 Earnings Presentation
19 slides from Alliant Energy's earnings presentation, Oct 30, 2026
Slide 1: Alliant Energy Corporation Q3 2026 Earnings Call
Alliant Energy Corporation Q3 2026 Earnings Call October 30, 2026
Slide 2: Cautionary Statements
Cautionary Statements Forward-looking Statements The information regarding earnings per share guidance, earnings per share growth, load growth opportunities and timing, projected demand, estimated effective income tax rates, forecasted and estimated capital expenditures, capex opportunities, forecas
Slide 3: Alliant Energy: The Advantage
ALLIANT ENERGY Powering a future you want to own THE ADVANTAGETM Solutions-oriented approach Driving affordability Resource plan flexibility Regulatory frameworks Unlocking the potential of our Retail electric rates below national Adding to robust, diverse, and aligned for growth customers and commu
Slide 4: Data Center Progress
Data Center Progress Filed ICR for Google 2 data center with the Iowa Utilities Commission 3.4 GW Large Data Center Load Growth (generation to serve load included in investment plan) Construction / Load Ramp Customer / Location ICR Status Progress Timeline QTS 1 Under construction 2026 – 2029 Approv
Slide 5: Solving for Affordability – Iowa
Solving for Affordability – Iowa Iowa electric base rate stability while earning authorized ROE IPL retail electric base rates held flat through 2030 2025 2026 2027 2028 Base rates stable through at least 2029 (prior plan ) 2029 2030 +1 year $800M extension Estimated customer savings from How it wor
Slide 6: Solving for Affordability – Wisconsin
Solving for Affordability – Wisconsin • Data centers provide meaningful benefits to communities they serve with tens of millions of dollars investments Supporting • Large load tariff ensures proper cost allocation among new customers and and existing customers communities ~$235M ~$50M $400M WI custo
Slide 7: Building Stronger Communities – Converting prospects to projects
Building Stronger Communities – Converting prospects to projects 1 Growing interest 2 Active site discussions Local engagement Increased interest in locating Robust pipeline of Large-load customers are new large-load projects in opportunities across ~10 sites increasing engagement with Iowa and Wisc
Slide 8: Q3 2026 Highlights
ALLIANT ENERGY Q3 2026 Highlights NARROWED 2026 ONGOING EARNINGS GUIDANCE Narrowed 2026 ongoing Strong results support expectations within the upper half of original guidance range EPS guidance(1)(2) DEPT of ENERGY LOAN PROGRAM BRINGS GREATER VALUE TO CUSTOMERS ~$5 billion loan program lowers costs
Slide 9: Initiated Projected Earnings and Dividend Growth in 2027
Initiated Projected Earnings and Dividend Growth in 2027 2027 ongoing EPS Guidance: $3.63 – $3.73 Key Drivers: 8% increase • Higher earnings from capital investments, incl. AFUDC $3.68 • Higher depreciation expense • Higher financing costs • Higher operation and maintenance expense due to higher lab
Slide 10: Proven Strong Execution Fueling Near-Term Growth Outlook
Proven Strong Execution Fueling Near-Term Growth Outlook 6-8%+ long-term annual ongoing EPS growth target; 8%+ ongoing EPS growth target for 2027-2030 NEAR-TERM GROWTH OUTLOOK Drivers of estimated 2027 – 2030 EPS growth: 8%+ • Growth in rate base • Expected load ramp of large load customers, includi
Slide 11: Increasing Investments to Support Economic Development and Growth
Increasing Investments to Support Economic Development and Growth +19% increase in CapEx supports 13% investment CAGR thru 2030 with minimal regulatory lag UPDATED CAPEX 2027-2030 PROJECTED RATE BASE ($ in billions) + CONSTRUCTION WORK IN PROGRESS 13-month average(1) ($ in billions) $0.6 $1.1 Energy
Slide 12: Expanding Diversified and Sustainable Energy Resources
Expanding Diversified and Sustainable Energy Resources ~$2.5B increase in 4-year estimated capital expenditures with robust additional capex opportunities Thermal Generation 2,800 MW New generation & LNG Natural gas generation in-service: 280 MW Increased capacity at existing units 2027 – 2031 $6.8B
Slide 13: Balanced funding approach for capital investment program
Balanced funding approach for capital investment program Financial strength and a balanced flexible funding plan position us to execute on growth SOURCES OF FUNDING Financing Expectations 2027-2030 • Financing capex investments with a balance of new debt, utilization of hybrids and new common equity
Slide 14: 2026 and 2027 Debt Financing Plans
2026 and 2027 Debt Financing Plans Financing plans support growth in capex and upcoming 2027 maturities ($ in millions) Estimated Remaining Debt 2026 Completed Financing Activity Issuances 2026 2027 Issuance Date Rate Maturity Date Amount Type AE Finance/Parent — Up to $1.0B March 2026 Variable Marc
Slide 15: Advancing Iowa Regulatory Initiatives
Advancing Iowa Regulatory Initiatives Approved Docket Increase Energy Storage by 125 MW in Franklin County, Iowa GCU-2025-0006 Pending Approval Docket Anticipated Decision Date 175 MW Marshall County BESS Project GCU-2026-0009 Q4 2026 720 MW Morgan Valley Energy Center Natural Gas Project GCU-2026-0
Slide 16: Advancing Wisconsin Regulatory Initiatives
Advancing Wisconsin Regulatory Initiatives Approved Docket Rock County LNG 6680-CG-171 Pending Approval Docket Anticipated Decision Date 277 MW Columbia Wind Project 9836-CE-100 & 6680-BS-102 Q1 2027 Large Load Tariff 6680-TE-119 Q2 2027 Riverside Capacity and Efficiency Project 6680-CE-192 Q2 2027
Slide 17: Appendix
APPENDIX Alliant Energy.
Slide 18: 2026 Guidance Assumptions
2026 Guidance Assumptions 2026 ongoing earnings guidance based on the following assumptions (as compared to 2025 levels) • Higher earnings on growing capital investments, including AFUDC • Forecasted 2026 capital expenditures of ~$3 billion weighted toward the second half of the year, with average c
Slide 19: GAAP to Ongoing Earnings Reconciliation
GAAP to Ongoing Earnings Reconciliation The following table provides a summary of Alliant Energy’s results for the three months ended September 30: GAAP EPS Adjustments Ongoing EPS 2026 2025 2026 2025 2026 2025 IPL $0.96 $0.64 $— — $0.96 $0.64 WPL 0.60 0.48 — — 0.60 0.48 Corporate Services 0.02 0.01