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Alstom SA
Alstom's GHG Emissions Data Preview
In 2025, Alstom completed a corporate carbon footprint assessment and publicly disclosed its greenhouse gas (GHG) emissions according to the GHG Protocol, covering Scope 1 (direct emissions from owned or controlled sources), Scope 2 (indirect emissions from purchased energy) and Scope 3 (indirect emissions across the value chain).
Alstom has also provided a category-level breakdown for 11 out of 15 Scope 3 emissions categories, offering greater transparency into its value chain emissions.
| Metric (tCO2e) | 2025 | 2024 | 2023 | 2022 - 2017 |
|---|---|---|---|---|
Total Scope 1 | Copy restricted. Please purchase to unlock this data.  a | Copy restricted. Please purchase to unlock this data.  a | Copy restricted. Please purchase to unlock this data.  b | 0000000 |
Total Scope 2 | ||||
Market-Based | Copy restricted. Please purchase to unlock this data.  a | Copy restricted. Please purchase to unlock this data.  a | Copy restricted. Please purchase to unlock this data.  b | 0000000 |
Location-Based | Copy restricted. Please purchase to unlock this data.  a | Copy restricted. Please purchase to unlock this data.  a | Copy restricted. Please purchase to unlock this data.  b | 0000000 |
Total Scope 3 | Copy restricted. Please purchase to unlock this data.  a | Copy restricted. Please purchase to unlock this data.  a | Copy restricted. Please purchase to unlock this data.  b | 0000000 |
Total Scope 1 Revenue Intensity (tCO2e/$M) | Copy restricted. Please purchase to unlock this data.  a | Copy restricted. Please purchase to unlock this data.  a | Copy restricted. Please purchase to unlock this data.  b | 0000000 |
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aVerified Sources Behind Alstom’s Greenhouse Gas (GHG) Emissions Data
Every figure on this dashboard has a transparent audit trail. With Tracenable, each data point is traceable back to its original source, viewable directly inside our platform. Explore Alstom’s data sources below and access millions more through our Disclosure Search.
Insights into Alstom's Operational Emissions
In 2025, the total operational greenhouse gas (GHG) emissions ofAlstom amounted to220,341metric tons of CO2 equivalent.This figure includes both direct emissions from owned or controlled sources (Scope 1) and indirect emissions from purchased energy (Scope 2).a
Compared to 2024, the total operational greenhouse gas (GHG) emissions of Alstomincreased by 1.02%, suggesting that the company faced challenges in reducing its emissions from its core operations.a
Alstom's Scope 1 Emissions Over Time
- Total Scope 1
- Year-over-Year Change
What are Alstom's Scope 1 emissions?
In 2025, the total Scope 1 emissions of Alstom were 87,038 metric tons of COâ‚‚ equivalent (tCOâ‚‚e).a
Has Alstom reduced its Scope 1 emissions over time?
Since 2020, Alstom's Scope 1 emissions have increased by 50.07%, reflecting a rising long-term trend in Scope 1 emissions over time.ac
Compared to the previous year(2024), Alstom's Scope 1 emissions remained relatively stable, indicating that Alstom's emissions have plateaued with no significant change in its operational footprint.a
What are Alstom's Scope 2 emissions?
In 2025, Alstom reported Scope 2 greenhouse gas (GHG) emissions of 40,523 tCOâ‚‚e using the market-based method and 133,303 tCOâ‚‚e using the location-based method.a
Has Alstom reduced its Scope 2 emissions over time?
Compared to the previous year(2024), Alstom's Scope 2 emissions(Location-Based) have remained relatively stable, indicating that Alstom's emissions have plateaued with no significant change in its energy consumption footprint.a
What methodology does Alstom use for Scope 2 reporting?
In 2025, Alstom reported its Scope 2 emissions using the market-based method and using the location-based method.a
Alstom's Scope 2 Emissions Over Time
- Total Scope 2 Location-Based
- Total Scope 2 Market-Based
Insights into Alstom's Value Chain Emissions
In 2025, Alstom reported 48,674,709 metric tons of COâ‚‚ equivalent (tCOâ‚‚e) of Scope 3 greenhouse gas (GHG) emissions, representing indirect emissions across its upstream and downstream value chain.a
The 2025 disclosure of Alstom includes a breakdown across 11of the 15 Scope 3 categories defined by the GHG Protocol,up from 7 in 2024, reflecting improved emissions accounting practices and greater transparency across the company's value chaina
Alstom's Scope 3 Emissions Over Time
- Total Scope 3
- Year-over-Year Change
What are Alstom's Scope 3 emissions?
In 2025, Alstom reported total Scope 3 emissions of 48,674,709 metric tons of COâ‚‚ equivalent (tCOâ‚‚e).a
Approximately 14.49%of these emissions originated from upstream activities such as purchased goods and capital goods, while 85.51%came from downstream activities like product use, distribution, and end-of-life treatment.a
Has Alstom reduced its Scope 3 emissions over time?
Since 2020, Alstom's Scope 3 emissionshave increased by 94.27%, reflecting a rising long-term trend in Scope 3 emissions over time.ac
Compared to the previous year (2024), Alstom's Scope 3 emissions remained relatively stable, indicating that Alstom's emissions have plateaued with no significant change in its value chain footprint.a
What categories of Scope 3 emissions does Alstom disclose?
In 2025, Alstom reported emissions for 11 out of the 15 Scope 3 categories defined by the GHG Protocol.a
This reflects a high level of granularity and transparency in the company's emissions reporting.
What are the main sources of Alstom's Scope 3 emissions?
In 2025, the largest contributors to Alstom's Scope 3 emissions were:a
- Use of Sold Products (Cat. 11): 41,471,419 tCOâ‚‚e(85.2%)
- Purchased Goods and Services (Cat. 1): 6,583,953 tCOâ‚‚e(13.53%)
- End-of-Life Treatment of Sold Products (Cat. 12): 137,416 tCOâ‚‚e(0.28%)
Alstom's Scope 3 Emissions by Categories
Insights into Alstom’s GHG Emissions Intensity Compared to Industry Peers
In 2025, Alstom reported Scope 1 greenhouse gas (GHG) emissions of 87,038 tCOâ‚‚e and total revenues of USD 20,012 millions. This translates into an emissions intensity of 4.35 tCOâ‚‚e per millions USD.a
Alstom's Scope 1 Emissions Intensity Compared to Peers
How does Alstom's GHG emissions intensity compare to its peers?
In 2025, Alstom reported a Scope 1 emissions intensity of 4.35 tCOâ‚‚e per millions USD. Compared to the peer group median of 6.78, this places the company below its industry benchmark, indicating it is more carbon-efficient than most competitors.a
Where does Alstom rank on GHG emissions intensity within its industry?
In 2025, Alstom ranked 10 out of 25 companies in its industry peer group, based on Scope 1 emissions intensity (measured in tCOâ‚‚e per millions USD).a
Alstom is therefore positioned in the mid-range of its industry, neither a clear leader nor a laggard in carbon efficiency.a
Insights into Alstom's Total Carbon Footprint
In 2025, Alstom reported a total carbon footprint of 48,895,050 metric tons of COâ‚‚ equivalent (tCOâ‚‚e) across Scope 1, Scope 2, and Scope 3 emissions. This represents a 8.57% increase compared to 2024, suggesting a rise in emissions across its operations or value chain.a
The largest contributor to Alstom's total carbon footprint was Scope 3 emissions, accounting for 99.55% of the company's total carbon footprint, followed by Scope 2 emissions at 0.27%.a