In 2025, Sempra 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).
Sempra has also provided a category-level breakdown for 3 out of 15 Scope 3 emissions categories, offering greater transparency into its value chain emissions.
| Metric (tCO2e) | 2025 | 2024 | 2023 | 2022-2019 |
|---|---|---|---|---|
Total Scope 1 | 4,934,399a | 6,700,000b | 6,800,000b | |
Total Scope 2 | ||||
Market-Based | 318,460a | N/A | N/A | |
Location-Based | 291,885a | N/A | N/A | |
Unspecified Calculation Method | N/A | 558,000b | 518,000b | |
Total Scope 3 | 59,055,181a | 66,000,000b | 67,800,000b | |
Total Scope 1 Revenue Intensity (tCO2e/$M) | 360.1225a | 508.1532b | 406.6986b |
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In 2025, the total operational greenhouse gas (GHG) emissions of Sempra amounted to 5,226,284 metric 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 Sempra decreased by 27.99%, showing that the company has made progress in taking action to reduce the climate impact of its operations.ab
In 2025, the total Scope 1 emissions of Sempra were 4,934,399 metric tons of CO₂ equivalent (tCO₂e).a
Since 2019, Sempra's Scope 1 emissions have decreased by 13.43%, reflecting a declining long-term trend in Scope 1 emissions over time.ac
Compared to the previous year (2024), Sempra's Scope 1 emissions decreased by 26.35%, highlighting the company's efforts to lower direct emissions from assets it owns or controls.ab
In 2025, Sempra reported Scope 2 greenhouse gas (GHG) emissions of 318,460 tCO₂e using the market-based method and 291,885 tCO₂e using the location-based method.a
In 2025, Sempra reported its Scope 2 emissions using the market-based method and using the location-based method.a
In 2025, Sempra reported 59,055,181 metric tons of CO₂ equivalent (tCO₂e) of Scope 3 greenhouse gas (GHG) emissions, representing indirect emissions across its upstream and downstream value chain.a
The 2025 disclosure of Sempra includes a breakdown across 3 of the 15 Scope 3 categories defined by the GHG Protocol, up from 0 in 2024, reflecting improved emissions accounting practices and greater transparency across the company's value chaina
In 2025, Sempra reported total Scope 3 emissions of 59,055,181 metric tons of CO₂ equivalent (tCO₂e).a
Approximately 0.11% of these emissions originated from upstream activities such as purchased goods and capital goods, while 99.89% came from downstream activities like product use, distribution, and end-of-life treatment.a
Since 2019, Sempra's Scope 3 emissionshave remained relatively stable, indicating that Sempra's emissions have plateaued with no significant change in its value chain footprint.ac
Compared to the previous year (2024), Sempra's Scope 3 emissions decreased by 10.52%, highlighting the company's efforts to lower indirect emissions from its value chain.ab
In 2025, Sempra reported emissions for 3 out of the 15 Scope 3 categories defined by the GHG Protocol.a
The limited disclosure restricts visibility into specific emission sources across the company's value chain.
In 2025, the largest contributors to Sempra's Scope 3 emissions were:a
In 2025, Sempra reported Scope 1 greenhouse gas (GHG) emissions of 4,934,399 tCO₂e and total revenues of USD 13,702 millions. This translates into an emissions intensity of 360.12 tCO₂e per millions USD.a
In 2025, Sempra reported a Scope 1 emissions intensity of 360.12 tCO₂e per millions USD. Compared to the peer group median of 563.7, this places the company below its industry benchmark, indicating it is more carbon-efficient than most competitors.a
In 2025, Sempra ranked 11 out of 24 companies in its industry peer group, based on Scope 1 emissions intensity (measured in tCO₂e per millions USD).a
Sempra is therefore positioned in the mid-range of its industry, neither a clear leader nor a laggard in carbon efficiency.a
In 2025, Sempra reported a total carbon footprint of 64,281,465 metric tons of CO₂ equivalent (tCO₂e) across Scope 1, Scope 2, and Scope 3 emissions. This represents a 12.25% decrease compared to 2024, indicating progress in reducing its overall greenhouse gas output.ab
The largest contributor to Sempra's total carbon footprint was Scope 3 emissions, accounting for 91.87% of the company's total carbon footprint, followed by Scope 1 emissions at 7.68%.a