Edison International : 2023 SASB Index

2023

SUSTAINABILITY REPORT

										Edison International
Introduction	Part 1	Part 2	Appendix
					2023 Sustainability Report
About This Report	Forward-Looking Statements	Sustainability Goals	Non-GAAP Reconciliation	Sustainability Scorecard	Definitions SASB TCFD GRI U.N. SDG Index

101

S A S B I N D E X

EDISON SASB INDEX - ELECTRIC UTILITIES AND POWER GENERATORS STANDARD

This is Edison International's fifth year reporting metrics in accordance with the Sustainability Accounting Standards Board (SASB) framework. Data included in this disclosure may differ from data included elsewhere in the report or in other disclosures to conform to the SASB reporting standards. Unless otherwise specified, metrics reflect SCE performance only. Reporting on several metrics has evolved this year to match SASB's definitions more closely. Remaining deviations are noted.

TOPIC

ACCOUNTING METRIC

CATEGORY

UNIT OF MEASURE

CODE

2023 EDISON INTERNATIONAL COMPANY RESPONSE

Greenhouse Gas

Emissions &

Energy Resource

Planning

Gross global Scope 1 emissions, percentage	Quantitative	Metric tons (t) CO2e,	IF-EU-110a.1	Appendix: Sustainability Scorecard
covered under (2) emissions-limiting regulations		Percentage (%)		99.9% of Scope 1 emissions are covered under a regulatory program
and (3) emissions-reporting regulations				Note: SCE updated its calculation methodology to include mobile sources.
Greenhouse gas (GHG) emissions associated	Quantitative	Metric tons (t) CO2e	IF-EU-110a.2	Appendix: Sustainability Scorecard
with power deliveries

	Discussion of long-term and short-term	Discussion and	n/a	IF-EU-110a.3	Part I: Leading the Clean Energy Transition - Edison International's Path to
	strategy or plan to manage Scope 1 emissions,	Analysis			Net Zero by 2045; Managing Our Operational Carbon Footprint; Strategic
	emissions reduction targets, and an analysis of				Investments & Innovation
	performance against those targets				Part II: Climate Change
Air Quality	Air emissions of the following pollutants:	Quantitative	Metric tons (t), Percentage (%)	IF-EU-120a.1	Appendix: Sustainability Scorecard
	(1) NOX (excluding N2O), (2) SOX, (3) particulate				100% in or near areas of dense population
	matter (PM10), (4) lead (Pb), and (5) mercury (Hg);				Note: SCE does not include emissions from particulate matter (PM10) or lead (Pb)
	percentage of each in or near areas of				in these calculations, as no standardized calculation methodology is available for
	dense population				these pollutants.

Note: Information provided herein should not be construed as being characterized as financially material (see About This Reportfor more details).

May 2024

										Edison International
Introduction	Part 1	Part 2	Appendix
					2023 Sustainability Report
About This Report	Forward-Looking Statements	Sustainability Goals	Non-GAAP Reconciliation	Sustainability Scorecard	Definitions SASB TCFD GRI U.N. SDG Index

102

TOPIC	ACCOUNTING METRIC	CATEGORY	UNIT OF MEASURE	CODE	2023 EDISON INTERNATIONAL COMPANY RESPONSE
Water Management	(1) Total water withdrawn, (2) total water	Quantitative	Thousand cubic meters (m³),		Appendix: Sustainability Scorecard
	consumed, percentage of each in regions with		Percentage (%)		(1) Total water withdrawn for SCE's utility-owned generation was 3,073 thousand
	High or Extremely High Baseline Water Stress				cubic meters in 2023. SCE does not have consolidated water withdrawal data for
					its nongeneration operations.
					(2) 100% of groundwater consumed for generation is from a region of Extremely
					High Baseline Water Stress. SCE does not track total water consumed across
					generation and nongeneration operations.
	Number of incidents of non- compliance	Quantitative	Number	IF-EU-140a.2	2
	associated with water quantity and/or quality
	permits, standards, and regulations
	Description of water management risks and	Discussion and	n/a	IF-EU-140a.3	Part II: Environment - Water Management & Conservation
	discussion of strategies and practices to mitigate	Analysis			Appendix: Sustainability Scorecard
	those risks				SCE is addressing current and evolving water management risks through
					our environmental management system and a published standard for water
					systems to ensure management of groundwater rights in accordance with
					California's Sustainable Groundwater Management Act (SGMA). The SGMA
					provides the state with a framework to manage its groundwater resources, and,
					as basins in California are adjudicated, SCE determines our legal entitlement
					to authorize water rights for the applicable groundwater basins within SCE's
					service area. Accordingly, SCE collects and submits pumping reporting records
					to the state and local groundwater management agencies. The applicable
					agencies include the State Water Resources Control Board, state Division of
					Drinking Water, state Department of Water Resources and local watermasters
					established under the SGMA.
Coal Ash	Amount of coal combustion residuals (CCR)	Quantitative	Metric tons (t), Percentage (%)	IF-EU-150a.1	SCE does not own or have specified coal generation contracts.
Management	generated, percentage recycled
	Description of coal combustion products (CCPs)	Discussion and	n/a	IF-EU-150a.3	SCE does not own or have specified coal generation contracts.
	management policies and procedures for active	Analysis
	and inactive operations

Note: Information provided herein should not be construed as being characterized as financially material (see About This Reportfor more details).

May 2024

										Edison International
Introduction	Part 1	Part 2	Appendix
					2023 Sustainability Report
About This Report	Forward-Looking Statements	Sustainability Goals	Non-GAAP Reconciliation	Sustainability Scorecard	Definitions SASB TCFD GRI U.N. SDG Index

103

TOPIC	ACCOUNTING METRIC	CATEGORY	UNIT OF MEASURE	CODE	2023 EDISON INTERNATIONAL COMPANY RESPONSE
Energy Affordability	Average retail electric rate for	Quantitative	Rate	IF-EU-240a.1	(1)	Residential: 29.2¢/kWh
	(1) residential, (2) commercial, and				(2)	Commercial: 26.9¢/kWh
	(3) industrial customers				(3)	Industrial: 18.3¢/kWh
	Typical monthly electric bill for residential	Quantitative	Presentation currency	IF-EU-240a.2	(1)	$197.05
	customers for				(2)	$379.23
	(1) 500 kWh and (2) 1,000 kWh of electricity				This data is derived from the Edison Electric Institute Typical Bills and Average
	delivered per month				Rates Report, Summer 2023. Typical bills shown are calculated based on the
					requirements of that report.
	Number of residential customer electric	Quantitative	Number, Percentage (%)	IF-EU-240a.3	Residential disconnections: 30,196
	disconnections for non-payment, percentage				Percent reconnected within 30 days: 94%
	reconnected within 30 days
	Discussion of impact of external factors on	Discussion and	n/a	IF-EU-240a.4	Part I: Leading the Clean Energy Transition - Environmental & Social Justice
	customer affordability of electricity, including	Analysis			Part I: Operating with Excellence - Affordability
	the economic conditions of the service area				Part II: Customers - Affordability: Additional Details
Workforce Health	(1) Total recordable incident rate (TRIR),	Quantitative	Rate	IF-EU-320a.1	(1)	TRIR: 1.99
& Safety	(2) fatality rate, and (3) near miss frequency				(2)	Fatality rate: 0.01
	rate (NMFR) for (a) direct employees and				(3)	NMFR: 2.75
	(b) contract employees
End-Use Efficiency &	Percentage of electric load served by smart	Quantitative	Percentage (%) by megawatt	IF-EU-420a.2	Appendix: Sustainability Scorecard
Demand	grid technology		hours (MWh)
	Customer electricity savings from efficiency	Quantitative	Megawatt hours (MWh)	IF-EU-420a.3	1,440,144
	measures, by Market				This data is an estimate based on best available data at the time of
					report publication.
Nuclear Safety	Total number of nuclear power units, broken	Quantitative	Number	IF-EU-540a.1	SCE has a 15.8% equity share of the Palo Verde Nuclear Generating Station.
& Emergency	down by results of most recent independent				The station is comprised of three pressurized water reactors that produce
Management	safety review				approximately 1,412 megawatts electrical (MWe) each, or 4,236 MWe for the site.
	Description of efforts to manage nuclear safety	Discussion and	n/a	IF-EU-540a.2	Decommissioning San Onofre Nuclear Generating Station (SONGS)
	and emergency preparedness	Analysis			Part II: Climate Change Mitigation: Additional Details
Grid Resiliency	Number of incidents of non-compliance with	Quantitative	Number	IF-EU-550a.1	This information is confidential.
	physical or cybersecurity standards
	or regulations
	(1) System Average Interruption Duration	Quantitative	Minutes, Number	IF-EU-550a.2	(1)	115.9 min.
	Index (SAIDI), (2) System Average Interruption				(2)	1.04
	Frequency Index (SAIFI), and (3) Customer				(3)	111.93 min.
	Average Interruption Duration Index (CAIDI),
	inclusive of major event days

Note: Information provided herein should not be construed as being characterized as financially material (see About This Reportfor more details).

May 2024

										Edison International
Introduction	Part 1	Part 2	Appendix
					2023 Sustainability Report
About This Report	Forward-Looking Statements	Sustainability Goals	Non-GAAP Reconciliation	Sustainability Scorecard	Definitions SASB TCFD GRI U.N. SDG Index

104

ACTIVITY METRIC	CATEGORY	UNIT OF MEASURE	CODE	2023 EDISON INTERNATIONAL COMPANY RESPONSE
Number of: (1) residential, (2) commercial, and	Quantitative	Number	IF-EU-000.A	[In thousands]
(3) industrial customers served				(1)	Residential: 4,576
				(2)	Commercial: 610
				(3)	Industrial: 5
				Note: Metric modified to thousands of customers to align with other
				company reports.
Total electricity delivered to: (1) residential, (2) commercial,	Quantitative	Megawatt hours (MWh)	IF-EU-000.B	[In thousands of MWh]
(3) industrial, (4) all other retail customers, and (5) wholesale customers				(1)	Residential: 26,097
				(2)	Commercial: 42,484
				(3)	Industrial: 3,615
				(4)	Other Retail: 5,311
				(5)	Wholesale: 1,749
				Note: "Other Retail" includes sales to public authorities, agricultural and
				other sales.
Length of transmission and distribution lines	Quantitative	Kilometers (km)	IF-EU-000.C	202,373 kilometers

Note: Information provided herein should not be construed as being characterized as financially material (see About This Reportfor more details).

May 2024