- Supply chain disruptions
- Climate-related risks (wildfires, extreme weather)
- Meeting ambitious GHG emission reduction targets
- Maintaining affordability of energy services
- Cybersecurity threats
Sempra
Greenhouse gas emissions & sustainability report data
In its 2023 reporting, Sempra disclosed greenhouse gas emissions of 67.8 million metric tons CO2e. By scope: Scope 1: 6.8 million metric tons CO2e; Scope 2: 0.512 million metric tons CO2e; Scope 3: 67.8 million metric tons CO2e. Figures are as stated in the company's own report and may use different boundaries, units or methods (for example market-based vs location-based Scope 2), so compare with care.
GHG Emissions
67.8 million metric tons CO2e
2023
Renewable Energy
50% (SDG&E)
of total energy
Water Usage
27.1 billion gallons
2023
Waste
143.0K tons
2023
📊 Emissions by Scope (2023)
| Scope | What it covers | Reported value |
|---|---|---|
| Scope 1 | Direct emissions from sources the company owns or controls (fuel combustion, company vehicles, process and fugitive emissions). | 6.8 million metric tons CO2e |
| Scope 2 | Indirect emissions from purchased electricity, steam, heat and cooling. | 0.512 million metric tons CO2e |
| Scope 3 | Other indirect emissions across the value chain (purchased goods, business travel, use of sold products, etc.). | 67.8 million metric tons CO2e |
New to scopes? Read Scope 1, 2 and 3 emissions explained and market-based vs location-based Scope 2.
📈 Emissions by Report Period
| Report period | Headline emissions figure reported |
|---|---|
| 2023 | 67.8 million metric tons CO2e |
| 2022 | 7.2M tCO2e/year (estimated) |
| 2021 | 73 million metric tons of CO2 equivalent (2021) |
| 2020 | 73.7 million metric tons of CO2 equivalent (2020, unverified) |
| 2019 | 65.9 MMT CO2e (unverified) |
| 2018 | 3.3M mmt CO2e |
Each row is the headline figure extracted from a different report; scope coverage and methodology can change between years.
✅ Reported Environmental Achievements
- SoCalGas reported methane emissions reductions of approximately 39% from a 2015 baseline, surpassing California’s target of 20% by 2025 and nearly meeting its 2030 target of 40% reduction.
- SDG&E increased its energy storage capacity in 2023 by reaching commercial operations on two additional utility-owned facilities totaling 171 MW.
- Over 85,000 tons of waste diverted from the landfill in 2023, recycling and investment recovery efforts accounted for nearly 48,000 tons diverted and recouped more than $10 million.
🎯 Climate & Sustainability Targets
🔜 Short-term
- Reduce Sempra California and Mexico (non-LNG) operational scope 1 & 2 GHG emissions by 50% compared to a 2019 baseline by 2030.
📅 Medium-term
- Reduce methane emissions from natural gas transmission and distribution system 40% from 2015 baseline by 2030.
- Achieve net-zero GHG emissions by 2045 at Sempra California.
🔭 Long-term
- Achieve net-zero GHG emissions by 2050 across scopes 1, 2, and 3.
🌱 ESG Focus Areas
SafetyClimate Change and ResilienceDecarbonizationDiversity & InclusionCommunity EngagementEconomic ProsperityGovernanceHuman RightsSupply Chain SustainabilityCybersecurity