Sustainability Accounting Standards Board

The Sustainability Accounting Standards Board (SASB) provides a reporting framework with industry-specific disclosure standards for sustainability topics. These standards are intended to provide investors with decision-useful sustainability information. We provide responses below for calendar year 2019 for both the Electric Utilities & Power Generators and Gas Utilities & Distributors sectors.

  • SASB Code

    Accounting Metric

    Response

    Greenhouse Gas Emissions & Energy Resource Planning

    IF-EU-110a.1

    Scope 1 emissions

    See Emissions from Electric Generation in the Environmental Performance Metrics section of our Sustainability Report, our response to the Carbon Disclosure Project, and pages 20-21 in the 2020 Climate Report.

    IF-EU-110a.1

    Percentage covered under emissions-limiting regulations

    0%

    IF-EU-110a.1

    Percentage covered under emissions-reporting regulations

    100%

    IF-EU-110a.2

    Greenhouse gas (GHG) emissions associated with power deliveries

    See Emissions from Electric Generation in the Environmental Performance Metrics section of our Sustainability Report, our response to question C7 in the Carbon Disclosure Project, and pages 20-21 in the 2020 Climate Report.

    IF-EU-110a.3

    Discussion of emissions reduction strategies

    See pages 1-5 and 20-21 in the 2020 Climate Report and our carbon emissions reduction goals in our Sustainability Plan And Goals (click Operations for an update).

    IF-EU-110a.4

    Number of customers served in markets subject to renewable portfolio standards (RPS) and fulfillment

    North Carolina, where we serve about 3.4 million customers, is the only state among our regulated service territories with an RPS. We meet the standard with owned and purchased renewables.

    Air Quality

    IF-EU-120a.1

    Air emissions:

    NOx and SO2

    See Emissions from Electric Generation in the Environmental Performance Metrics section of our Sustainability Report.

    Particulate Matter (PM10) and Lead (Pb)

    Table showing Emissions in Short Tons, 2016-2019 

    Mercury (Hg)

    See Indicator G4-EN21 in our GRI index.

    Water Management

    IF-EU-140a.1

    Water withdrawn, water consumed and percentage from water-stressed areas

    See Water Withdrawn and Consumed for Electric Generation in the Environmental Performance Metrics section of our Sustainability Report. None are from water-stressed areas.

    IF-EU-140a.2

    Number of incidents of noncompliance associated with water quantity and/or quality permits, standards and regulations

    There were 16 water-related compliance issues. For all compliance issues, see Environmental Regulatory Citations in the Environmental Performance Metrics section of our Sustainability Report.

    IF-EU-140a.3

    Description of water management risks and discussion of strategies and practices to mitigate those risks

    See Environmental Scientists Protect Lakes and Habitat and our water goals in Our Sustainability Plan and Goals (click Operations for an update). Also see pages 12-14 in our 2020 Climate Report.

    Coal Ash Management

    IF-EU-150a.1

    Amount of coal combustion residuals (CCR) generated, percentage recycled

    Approximately 4,716,000 tons of CCRs were generated and 72 percent was recycled.

    IF-EU-150a.2

    Total number of coal combustion residual (CCR) impoundments, broken down by hazard potential classification and structural integrity assessment

    See CCR Rule Compliance Data & Information, Coal Ash Basin Closure Progress, and Turning the Corner on Coal Ash.

    Energy Affordability

    IF-EU-240a.1

    Average retail electric rate for (1) residential, (2) commercial, and (3) industrial customers

    See Duke Energy's Electric Rates: Below U.S. Average in our Sustainability Report.

    IF-EU-240a.2

    Typical monthly electric bill for residential customers for (1) 500 kWh and (2) 1,000 kWh of electricity delivered per month

    Table showing typical monthly bills for all Duke Energy service areas and the national average. 
    View larger image. 

    IF-EU-240a.3

    Number of residential customer electric disconnections for nonpayment, percentage reconnected within 30 days

    Disconnecting a customer's service for non-payment is the very last step in a lengthy process, and it's a step we will work hard to avoid. See Customer Assistance Programs Help Those in Need in our Sustainability Report.

    IF-EU-240a.4

    Discussion of impact of external factors on customer affordability of electricity, including the economic conditions of the service territory

    See Duke Energy's Electric Rates: Below U.S. Average, Our Stakeholders and What Matters Most and Economic Development: New Jobs, Community Investment in our Sustainability Report. Also see slide 4 of the fourth quarter Earnings Release slide deck.

    Workforce Health & Safety

    IF-EU-320a.1

    Occupational safety statistics

    See Duke Energy Remains Committed to Worker Safety and our safety goals in our Sustainability Plan And Goals (click Operations for an update). Duke Energy has been an industry leader in safety for five consecutive years.

    End-Use Efficiency & Demand

    IF-EU-420a.1

    Percentage of electric utility revenues from rate structures that (1) are decoupled and (2) contain a lost revenue adjustment mechanism (RAM)

    77%

    IF-EU-420a.2

    Percentage of electric load served by smart grid technology

    See Connecting Customers to a Smarter Energy Future in our Sustainability Report

    IF-EU-420a.3

    Customer electricity savings from efficiency measures, by market

    Energy efficiency programs vary by state and we provide information for each state on our website. Also see our energy efficiency goals in our Our Sustainability Plan And Goals (click Customers for an update).

    Nuclear Safety & Emergency Management

    IF-EU-540a.1

    Total number of nuclear power units, broken down by U.S. Nuclear Regulatory Commission (NRC) Action Matrix Column

    See page 174 of our Form 10-K filed with the Securities and Exchange Commission.

    IF-EU-540a.2

    Description of efforts to manage nuclear safety and emergency preparedness

    See "Nuclear Preparedness" on the Duke Energy website.

    Grid Resiliency

    IF-EU-550a.1

    Number of incidents of noncompliance with physical and/or cybersecurity standards or regulations

    See Staying Ahead of Cyber Threats in our Sustainability Report.

    IF-EU-550a.2

    (1) System Average Interruption Duration Index (SAIDI) and (2) System Average Interruption Frequency Index (SAIFI)

    Table showing system average interruption duration (SAIDI) and frequency (SAIFI) 2016-2019

    Also see Reliable Power in our Sustainability Report.

    SASB Code

    Activity Metric

    Response

    IF-EU-000.A

    Number of: (1) residential, (2) commercial, and (3) industrial customers served

    See Electric Utilities and Infrastructure Quarterly Highlights on page 34 in our fourth quarter Earnings Release. Also see Duke Energy At A Glance in our Sustainability Report.

    IF-EU-000.B

    Total electricity delivered to: (1) residential, (2) commercial, (3) industrial, (4) all other retail customers, and (5) wholesale customers

    See Electric Utilities and Infrastructure Quarterly Highlights on page 34 in our fourth quarter Earnings Release.

    IF-EU-000.C

    Length of transmission and distribution lines

    See Duke Energy At A Glance in our Sustainability Report.

    IF-EU-000.D

    Total electricity generated, percentage by major energy source, percentage in regulated markets

    See Duke Energy At A Glance in our Sustainability Report.

    IF-EU-000.D

    Total wholesale electricity purchased

    44,506,631 MWh

  • SASB Code

    Accounting Metric

    Response

    Energy Affordability

    IF-GU-240a.1

    Average retail gas rate for (1) residential, (2) commercial, (3) industrial customers, and (4) transportation services only

    Table showing average retail gas rate 
    View larger image. 

    IF-GU-240a.2

    Typical monthly gas bill for residential customers for (1) 50 MMBtu and (2) 100 MMBtu of gas delivered per year

    SASB Table Showing typical monthly gas bills by jurisdiction
    View larger image. 

    IF-GU-240a.3

    Number of residential customer gas disconnections for nonpayment, percentage reconnected within 30 days

    Disconnecting a customer's service for non-payment is the very last step in a lengthy process, and it's a step we will work hard to avoid. See Customer Assistance Programs Help Those in Need in our Sustainability Report.

    IF-GU-240a.4

    Discussion of impact of external factors on customer affordability of gas, including the economic conditions of the service territory

    See Our Stakeholders and What Matters Most and Economic Development: New Jobs, Community Investment in our Sustainability Report. Also see slide 4 of the fourth quarter Earnings Release slide deck.

    End-use Efficiency & Demand

    IF-GU-420a.1

    Percentage of gas utility revenues from rate structures that (1) are decoupled and (2) contain a lost revenue adjustment mechanism (RAM)

    See slide 60 of the fourth quarter Earnings Release slide deck.

    IF-GU-420a.2

    Customer gas savings from efficiency measures, by market

    We do not centrally track these data. Programs vary by jurisdiction and include equipment rebates, weatherization and education.

    Integrity of Gas Delivery Infrastructure

    IF-GU-540a.1

    Number of (1) reportable pipeline incidents, (2) Corrective Action Orders (CAO), and (3) Notices of Probable Violation (NOPV)

    Reportable Pipeline Incidents - 2
    Corrective Action Orders (CAO) - 0
    Notices of Probable Violation (NOPV) - 0

    IF-GU-540a.2

    Percentage of distribution pipeline that is (1) cast and/or wrought iron and (2) unprotected steel

    See pages 8-9 in Duke Energy's EEI and AGA Reporting disclosure and Pipeline Integrity and Management.

    IF-GU-540a.3

    Percentage of gas (1) transmission and (2) distribution pipelines inspected

    39% of the natural gas transmission system was inspected by in-line inspection methods. Zero percent of the natural gas distribution system was inspected by in-line inspection methods (this is not typically performed on the lower pressure distribution pipelines). Also see pages 8-9 in Duke Energy's EEI and AGA Reporting disclosure and "Pipeline Integrity and Management.

    IF-GU-540a.4

    Description of efforts to manage the integrity of gas delivery infrastructure, including risks related to safety and emissions

    See pages 8-9 in Duke Energy's EEI and AGA Reporting disclosure and Pipeline Integrity and Management.

    SASB Code

    Activity Metric

    Response

    IF-GU-000.A

    Number of: (1) residential, (2) commercial, and (3) industrial customers served

    See Gas Utilities and Infrastructure Quarterly Highlights on page 40 in our fourth quarter Earnings Release.

    IF-GU-000.B

    Amount of natural gas delivered to (1) residential customers, (2) commercial customers, (3) industrial customers, and (4) transferred to a third party

    See Duke Energy At A Glance in our Sustainability Report.

    IF-GU-000.C

    Length of gas transmission and distribution lines

    See Duke Energy At A Glance in our Sustainability Report.


Table showing typical monthly bills for all Duke Energy service areas and the national average.
Table showing average retail gas rate
SASB Table Showing typical monthly gas bills by jurisdiction
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