Operations Indicators

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93% of total assets are associated
with energy delivery and 99%
are regulated.

The sustainability indicators listed on this page are dated as of December 31, 2020 except as otherwise noted. Please use this document for comparative purposes as historical data has been updated in some instances.

2020 2019 2018 2017 2016¹
Financial Indicators
Assets
Total Value of Assets ($B) 55.5 53.4 53.1 47.8 47.9
Percentage of Total Assets that are regulated utility assets 99% 99% 97% 97% 97%
Percentage of Total Assets associated with Energy Delivery 93% 93% 93% 92% 91%
Percentage of Total Assets associated with Electricity Generation 7% 7% 7% 8% 9%
- Percentage of fossil-fuel generation 5% 5% 5% * *
- Percentage of renewable generation 2% 2% 2% * *
Capital Expenditures ($B)
Resiliency, Hardening and Modernization Capital 2.2 1.9 * * *
Cleaner Energy² Capital 0.8 0.6 * * *
Customer Growth Capital 0.6 0.6 * * *
IT & Cybersecurity Capital 0.3 0.3 * * *
Other Capital 0.3 0.4 * * *
Total Annual Capital Expenditures ($B) 4.2 3.8 3.2 3.0 2.1
Percentage of Capital Expenditures Related to Coal-Fired Electricity Generation 1.2% 1.1% * * *
Percentage of Capital Expenditures Related to Natural Gas-Fired Electricity Generation (New) 2.2% * * * *
Percentage of Capital Expenditures Related to Renewable Generation (New) 14.7% * * * *
Percentage of Capital Expenditures Related to the Transmission, Storage and Distribution of Natural Gas 12.5% 11.8% * * *
Other Financial Indicators
Rate Base
Percentage of Rate Base Related to Coal-Fired Electricity Generation 3.7% 4.7% * * *
Percentage of Rate Base Related to Natural Gas-Fired Electricity Generation (New) 3.0% * * * *
Percentage of Rate Base Related to Renewable Generation (New) 1.9% * * * *
Percentage of Rate Base Related to the Transmission, Storage and Distribution of Natural Gas (New) 18.9% * * * *
Revenue
Percentage of Revenue Related to Coal-Fired Electricity Generation 5.1% 5.7% * * *
Percentage of Revenue Related to Natural Gas-Fired Electricity Generation (New) 7.7% * * * *
Percentage of Revenue Related to Renewable Generation (New) 1.7% * * * *
Percentage of Revenue Related to the Transmission, Storage and Distribution of Natural Gas (New) 19.6% * * * *
Percentage of Natural Gas Revenue protected by a Decoupled and/or a Lost Revenue Adjustment Mechanism (New) 90% * * * *
Percentage of Electricity Revenue protected by a Decoupled and/or a Lost Revenue Adjustment Mechanism3 (New) 55% * * * *
Customer Information
Number of electricity customers (in thousands) 2,054 2,036 2,022 2,002 1,986
- Percentage of Residential Customers 86.7% 86.5% * * *
- Percentage of Commercial Customers 11.5% 12.4% * * *
- Percentage of Industrial Customers 1% 1.1% * * *
- Percentage of Other Customers4 (New) 0.8% * * * *
Electric Customer Satisfaction Score Range5 (New) 77% - 98% 74% - 98% * * *
Number of natural gas customers (in thousands) 1,291 1,281 1,268 1,244 1,227
- Percentage of Residential Customers 90.5% 90.4% * * *
- Percentage of Commercial Customers 9.3% 9.4% * * *
- Percentage of Industrial Customers 0.1% 0.2% * * *
- Percentage of Other Customers4 (New) 0.1% * * * *
Natural Gas Customer Satisfaction Score Range6 (New) 87% - 93% 87% - 93% * * *
Total Customers (in thousands) 3,345 3,317 3,290 3,246 3,213
Electricity Transmission and Distribution ("T&D")
Total Kilometres of Electricity T&D Lines 185,700 184,850 182,700 * *
- Percentage of Distribution Lines 81% 81% 81% * *
- Percentage of Transmission Lines 19% 19% 19% * *
Natural Gas T&D
Total Kilometres of Natural Gas T&D lines 57,000 56,850 56,850 * *
- Percentage of Distribution Lines 94% 94% 94% * *
- Percentage of Transmission Lines 6% 6% 6% * *
Electricity Generation
Electricity Generation Capacity (in MW)
Coal 1,073 1,242 1,242 1,412 1,412
Oil 61 71 76 76 81
Diesel 380 375 374 375 375
Natural Gas 2,135 2,201 2,107 1,555 1,555
Hydropower 395 566 566 563 563
Solar 57 57 55 55 45
Total Electricity Generation Capacity (in MW) 4,101 4,512 4,420 4,036 4,031
Net Electricity Generated (in gigawatt hours ("GWh"))
Coal 5,820 7,070 7,241 7,565 8,268
Oil <1 <1 <1 2 2
Diesel 884 946 900 890 902
Natural Gas 8,590 8,660 7,572 3,897 3,919
Biofuel7 0 12 25 24 28
Hydropower 2,288 2,186 2,930 2,882 2,617
Solar 112 102 108 109 82
Total (in GWh) 17,694 18,976 18,776 15,369 15,818
Electricity Purchased by Fortis and Resold for Customer Use8 (in GWh)
Solar 951 921 845 781 722
Wind 1,163 1,180 1,201 1,214 1,136
Hydropower 9,166 9,640 9,578 9,451 8,804
Other renewables 232 258 247 251 166
Total renewables 11,512 11,999 11,871 11,697 10,828
Nuclear (New) 2,685 2,740 2,819 2,759 2,625
Other sources from the grid (New) 4,058 4,505 4,475 5,329 5,028
Total (in GWh) 18,255 19,244 19,165 19,785 18,481
Percentage of renewable electricity sold to customers 38.7% 37.4% 39.4% 41.9% 39.5%
Percentage of clean electricity sold to customers9 46.2% 44.6% 46.8% 49.7% 47.2%
Energy Deliveries
Total electricity delivered (in GWh) 218,517 226,062 224,902 216,746 90,868
Total electricity delivered (in petajoules ("PJ")) 787 814 810 780 327
Total natural gas delivered (in PJ) 302 315 287 290 263
Total energy delivered (in PJ) 1,089 1,129 1,097 1,070 590
Customer Energy Savings from Fortis Efficiency and Demand Reduction Programs
Electricity savings in the year (in GWh) 388 380 359 329 344
Natural gas savings in the year (in terajoules) 1,165 951 697 630 541
Energy Reliability
Electricity Reliability Performance
Electricity System Average Interruption Duration Index ("SAIDI") under normal operations (customer hours of interruption per customer served) 1.90 1.84 2.07 2.15 2.07
SAIDI during major events (customer hours of interruption per customer served) 2.82 2.30 2.03 1.73 0.61
Electricity System Average Interruption Frequency Index ("SAIFI") under normal operations (number of times that a customer experiences an outage) (New) 1.39 1.35 1.47 1.49 1.35
SAIFI during major events (number of times that a customer experiences an outage) (New) 0.38 0.20 0.54 0.42 0.29
Electricity Customer Average Interruption Duration Index ("CAIDI") under normal operations (amount of time in hours, required to restore service once an outage has occurred) (New) 1.37 1.36 1.41 1.44 1.53
CAIDI during major events (amount of time required in hours, to restore service once an outage has occurred) (New) 7.42 11.50 3.76 4.12 2.10
Transmission Service Reliability (number of forced outages per 100 miles of transmission lines) 0.68 0.52 0.55 0.55 0.54
Combined T&D electricity losses 4.4% 4.2% 4.2% 4.3% 4.1%
Natural Gas Reliability Performance
Reportable Pipeline Incidents10 (New) 20 * * * *
Corrective Action Orders (New) 0 * * * *
Notice of Probable Violation11 (New) 5 * * * *
Gas Leaks per 1,000 customers (number of gas leaks for every 1,000 customers) 1.75 1.94 2.39 2.66 2.13
Combined T&D natural gas losses 0.65% 0.53% 0.95% 0.81% 0.73%
Percentage of Cast/Wrought Iron Pipeline in Service12 (New) 0.5% * * * *
Percentage of Unprotected Steel Pipeline in Service13 (New) 0.7% * * * *
Percentage of Transmission Pipelines Inspected (New) 100% * * * *
Percentage of Distribution Pipelines Inspected (New) 100% * * * *
Employee Safety
All Injury Frequency Rate (number of injuries for every 200,000 hours worked) 1.09 1.45 1.45 1.38 1.67
Lost Work Day Case Rate (number of lost time injuries for every 200,000 hours worked) 0.42 0.66 0.48 0.53 0.64
Days Away, Restricted and Transfer Rate (number of lost time injuries including restricted work duties for every 200,000 hours worked) 0.65 0.85 0.68 0.78 0.72
Total Recordable Incident Rate (number of injuries including job transfers not requiring medical treatment for every 200,000 hours worked) 1.31 1.56 1.58 1.53 1.76
Work-related employee fatalities (New) 0 0 1 0 0
Percentage of Fortis utilities with extensive occupational health and safety management programs aligned with ISO 45001, OHSAS 18001 or equivalent 100% 100% 100% 100% 100%
Cybersecurity
Number of reportable security breaches 0 0 0 * *
Number of reportable information security breaches involving customers’ personally identifiable information 0 0 0 * *
Number of customers affected by company’s data breaches 0 0 0 * *
Total amount of fines/penalties paid in relation to information security breaches 0 0 0 * *
Notes: (New) in the table above identifies new key performance indicators added this year.
The asterisks (“*“) in the table above indicate metrics added in recent years and historical data is not available.
(1)
Data is provided from the date of acquisition of the following: Aitken Creek Gas Storage Facility (April 2016) and ITC (October 2016).
(2)
Cleaner energy capital is defined as investments that reduce air emissions, water usage and/or increase customer energy efficiency.
(3)
Includes revenue from short-term wholesale revenue at UNS Energy, which is protected by regulatory deferral mechanisms and therefore does not impact earnings.
(4)
Includes wholesale customers.
(5)
Excludes TEP’s J.D. Power customer satisfaction score of 751 in 2020 and 731 in 2019.
(6)
Excludes UNS Gas’ J.D. Power customer satisfaction score of 729 in 2020 and 740 in 2019.
(7)
UNS Energy had a landfill gas contract that expired in 2019.
(8)
Mixed source purchases from the grid allocated based on estimated supplier energy mix and/or regional energy supply.
(9)
Clean energy includes nuclear and renewable energy sources.
(10)
An incident is deemed reportable if it meets the reporting requirements specified by a regulator.
(11)
Notification, from a regulator, that a pipeline operator is in probable violation of pipeline safety statutes or regulations.
(12)
Includes bare and/or uncoated iron.
(13)
Pipeline in service that is bare/uncoated steel.