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Segment Information (Tables)
9 Months Ended
Sep. 30, 2023
Segment Reporting [Abstract]  
Summarized Financial Information The following table sets forth segment revenues and segment operating income (loss) and operating margins for the three and nine months ended September 30, 2023 and 2022. Operating margin is calculated by dividing operating income (loss) by
revenues. The following table shows dollars in thousands:
Three Months Ended September 30,Nine Months Ended September 30,
 2023202220232022
Revenues:  
Electric Power
$2,489,547 44.3 %$2,282,332 51.2 %$7,240,838 48.0 %$6,620,459 52.3 %
Renewable Energy
1,746,636 31.1 978,779 21.9 4,144,304 27.4 2,778,647 22.0 
Underground and Infrastructure
1,384,639 24.6 1,198,646 26.9 3,713,116 24.6 3,258,179 25.7 
Consolidated revenues$5,620,822 100.0 %$4,459,757 100.0 %$15,098,258 100.0 %$12,657,285 100.0 %
Operating income (loss):
  
Electric Power(1)
$296,176 11.9 %$255,457 11.2 %$755,342 10.4 %$691,026 10.4 %
Renewable Energy
151,389 8.7 %88,885 9.1 %297,532 7.2 %240,514 8.7 %
Underground and Infrastructure
123,764 8.9 %101,351 8.5 %292,544 7.9 %239,469 7.3 %
Corporate and Non-Allocated Costs (2)
(171,000)(3.0)%(158,902)(3.6)%(539,956)(3.6)%(558,346)(4.4)%
Consolidated operating income$400,329 7.1 %$286,791 6.4 %$805,462 5.3 %$612,663 4.8 %
(1)    Includes equity in earnings of integral unconsolidated affiliates of $11.7 million and $10.6 million for the three months ended September 30, 2023 and 2022 and $30.7 million and $44.4 million for the nine months ended September 30, 2023 and 2022, primarily related to Quanta’s equity interest in LUMA Energy, LLC (LUMA).
(2)    Includes amortization expense of $71.4 million and $67.1 million and non-cash stock-based compensation of $32.5 million and $26.6 million for the three months ended September 30, 2023 and 2022. Includes amortization expense of $213.8 million and $290.8 million and non-cash stock-based compensation of $94.6 million and $77.7 million for the nine months ended September 30, 2023 and 2022.
The following table sets forth depreciation expense by segment for the three and nine months ended September 30, 2023 and 2022. The table shows dollars in thousands:
Three Months EndedNine Months Ended
September 30,September 30,
2023202220232022
Depreciation:
Electric Power
$38,228 $35,896 $121,670 $109,456 
Renewable Energy
15,812 11,214 37,351 29,625 
Underground and Infrastructure
23,940 20,311 63,575 61,916 
Corporate and Non-Allocated Costs3,508 6,086 17,150 17,423 
Consolidated depreciation$81,488 $73,507 $239,746 $218,420