EPA GHGRP · reporting year 2023 · Power Plants
Alliant Energy - top-third GHGRP parent
According to the EPA's Greenhouse Gas Reporting Program (GHGRP), an upper-third Scope 1 reporter: 10 facilities across 2 states (6.1M MT CO₂e in 2023).
- MT CO₂e (latest facility reports)
- 6.1M
- Reporting facilities
- 10
- States covered
- 2
- Overall rank
- #87
Data updated May 2026
According to the EPA GHGRP, Alliant Energy reported 6.1M MT CO₂e in 2023 across 10 facilities in 2 states (ranks among the top 5% of U.S. corporate GHG emitters (#87 of 2,289)) Emissions decreased 34% over the tracked period.
- Overall rank #87 of 2,289
- #49 in Power Plants
- -33.8% since 2011
Alliant Energy vs all U.S. GHGRP parent companies
Where this parent's reported Scope 1 CO₂e sits among every EPA GHGRP-reporting company
6,148,762 87th of 2289 higher than 2,202 of 2,289 companies
GHGRP parent companies, banded by reported CO₂e (MT)
Each bar is a band; taller bars hold more companies. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source EPA Greenhouse Gas Reporting Program · 2023
How Alliant Energy spreads its footprint vs Power Plants peers
Facility count against total reported CO₂e for 21 Power Plants companies. A company can lead its sector from one concentrated site or from many smaller ones; the split below uses the median of this peer group (19 facilities, 26.77M MT).
You are here: Alliant Energy.
Power Plants peer footprint table: Alliant Energy, 10 facilities, 6.15M MT CO2e. Vistra, 40 facilities, 86.32M MT CO2e. The Southern, 26 facilities, 78.01M MT CO2e. Duke Energy, 39 facilities, 65.01M MT CO2e. CPN Management, 43 facilities, 47.58M MT CO2e. Nextera Energy, 19 facilities, 45.57M MT CO2e. American Electric Power CO, 22 facilities, 44.72M MT CO2e. Berkshire Hathaway, 27 facilities, 39.8M MT CO2e. US Government, 21 facilities, 38.21M MT CO2e. Entergy, 23 facilities, 33.86M MT CO2e. Xcel Energy, 28 facilities, 29.03M MT CO2e. PPL, 6 facilities, 26.77M MT CO2e. Dominion Energy, 22 facilities, 25.19M MT CO2e. DTE Energy, 12 facilities, 22.31M MT CO2e. NRG Energy, 14 facilities, 22.1M MT CO2e. Ameren, 11 facilities, 19.88M MT CO2e. Evergy, 12 facilities, 19.87M MT CO2e. Lightstone Generation, 4 facilities, 19.14M MT CO2e. Talen Energy, 11 facilities, 17.72M MT CO2e. Associated Electric Cooperative, 7 facilities, 15.57M MT CO2e. Aes, 8 facilities, 15.45M MT CO2e.
EPA GHGRP inventory plate
Parent alliant-energy · 2023 #87 · 6.1M MT
CO2E-MID · TOP-DECILE · PHOTO-FINISH · FAC-MULTI · SPAN-PAIR · SECTOR-POWER-PLANTS · TREND-CUT · BOOK-RICH
- CO2E-MID 6.1M MT
- TOP-DECILE #87/2289
- PHOTO-FINISH The Williams Cos · Petroleum and…
- FAC-MULTI 10 facilities
- SPAN-PAIR 2 states
- SECTOR-POWER-PLANTS Power Plants
- TREND-CUT −34% since 2011
- BOOK-RICH 7/8 fields
Nearest CO₂e peer: The Williams Cos · Petroleum and Natural Gas Systems (±2K MT)
Upper-third parent rollup stamps: CO₂e band, corpus rank, peer, facility book, state span, sector, trend. Not an EPA grade.
2023 nearly all-CO₂ parent book
This parent's 2023 facility book is almost entirely CO₂ (99.7% of 6.1M MT CO₂e). CH₄ and N₂O together are only 0.3%, a CO₂-shaped GHGRP profile, not a methane story. Component shares sum this parent's facility CO₂ / CH₄ / N₂O rows for that year, not a corporate Scope 1-3 inventory.
- CO₂
- 99.7%
- 6.1M MT
- CH₄
- 0%
- 2K MT
- N₂O
- 0.2%
- 15K MT
CO₂e neighbourhood around Alliant Energy
Lowest and highest poles plus nearest reported parents by CO₂e, not a full GHGRP corpus board reprint.
Largest sites in a top-third parent book
Alliant Energy - top sites (MT CO₂e)
Alliant Energy's largest facilities by latest available reported CO₂e
Emissions decline across reporting years
Alliant Energy - declining annual GHG
EPA GHGRP 2011–2023 · million metric tons CO₂e
- Reported CO₂e in 2023
- 6.1M MT
- 13 annual EPA GHGRP reporting records
Alliant Energy annual reported GHG emissions, 2011–2023
Alliant Energy reported 6.1M MT CO₂e in 2023, compared with 9.3M MT in 2011 - a decline of 33.8% across the EPA GHGRP reporting record.
Wide facility book (10)
| Facility | Location | Emissions (MT CO2e) |
|---|---|---|
| Edgewater (4050) Power Plants SHEBOYGAN, WI | SHEBOYGAN, WI | 2.1M |
| Sutherland Power Plants MARSHALLTOWN, IA | MARSHALLTOWN, IA | 1.5M |
| Emery Station Power Plants CLEAR LAKE, IA | CLEAR LAKE, IA | 1.2M |
| Prairie Creek Power Plants CEDAR RAPIDS, IA | CEDAR RAPIDS, IA | 595K |
| Neenah Energy Facility Power Plants NEENAH, WI | NEENAH, WI | 369K |
| Sheboygan Falls Energy Facility Power Plants PLYMOUTH, WI | PLYMOUTH, WI | 334K |
| South Fond Du Lac Power Plants FOND DU LAC, WI | FOND DU LAC, WI | 21K |
| Burlington (IA) Power Plants BURLINGTON, IA | BURLINGTON, IA | 19K |
| Lansing Power Plants LANSING, IA | LANSING, IA | 1K |
| Rock River Power Plants BELOIT, WI | BELOIT, WI | 328 |
Where Alliant Energy's reported CO₂e sits by state
54.3% of this parent's latest facility CO₂e is in Iowa (5 sites) ; next is Wisconsin at 45.7% . Shares are GHGRP facility rollups for this parent, not state economy totals.
Alliant Energy reported facility CO₂e concentration by U.S. state
Nationwide peers for a top-third GHGRP parent
Three EPA GHGRP peer sets for a top-third parent (6.1M MT): nearest totals, facility-book size, then per-facility intensity.
Similar reported CO₂e
Nearest parent totals (6.1M MT here).
Similar facility book
Nearest reporting-facility counts (10 here).
Similar per-facility CO₂e
Nearest average MT per facility (615K MT here).
Source: EPA GHGRP Data is based on facility self-reporting. Not environmental compliance advice
What to do with this
Using Alliant Energy's emissions profile
- Alliant Energy runs high-intensity per facility (615K MT CO₂e/site); see how it stacks up against the rest of the Power Plants sector on the Power Plants industry page.
- It ranks #87 of 2,289 reporting parents nationwide, compare it directly against specific peers on the compare tool.
- Not sure how to read a total-CO₂e figure or a per-facility intensity number, the how-to-read guide walks through what each field means and what it doesn't.
Related reading: How to read an emissions profile · Power Plants emitters · Methodology
Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the EPA Greenhouse Gas Reporting Program (GHGRP). Consult a qualified professional before making decisions based on this data.