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Segment Information (Tables)
3 Months Ended
Mar. 31, 2024
Segment Reporting [Abstract]  
Summarized Financial Information
The following table sets forth segment revenues and segment operating income (loss) for the three months ended March 31, 2024 and 2023. Operating margin is calculated by dividing operating income (loss) by revenues. The following table
shows dollars in thousands:
Three Months Ended March 31,
 20242023
Revenues:  
Electric Power
$2,326,960 46.2 %$2,336,037 52.7 %
Renewable Energy
1,584,164 31.5 1,008,300 22.8 
Underground and Infrastructure
1,120,695 22.3 1,084,489 24.5 
Consolidated revenues$5,031,819 100.0 %$4,428,826 100.0 %
Operating income (loss):
  
Electric Power (1)
$228,025 9.8 %$215,149 9.2 %
Renewable Energy
74,846 4.7 %35,656 3.5 %
Underground and Infrastructure
46,888 4.2 %61,573 5.7 %
Corporate and Non-Allocated Costs (2)
(194,405)(3.9)%(186,518)(4.2)%
Consolidated operating income$155,354 3.1 %$125,860 2.8 %
(1)    Includes equity in earnings of integral unconsolidated affiliates of $12.3 million and $9.6 million for the three months ended March 31, 2024 and 2023, primarily related to Quanta’s equity interest in LUMA Energy, LLC (LUMA).
(2)    Includes amortization expense of $77.5 million and $72.4 million and non-cash stock-based compensation of $35.3 million and $27.5 million for the three months ended March 31, 2024 and 2023.
The following table sets forth depreciation expense by segment for the three months ended March 31, 2024 and 2023. The table shows dollars in thousands:
Three Months Ended
March 31,
20242023
Depreciation:
Electric Power
$40,447 $42,085 
Renewable Energy
17,795 10,858 
Underground and Infrastructure
24,986 20,500 
Corporate and Non-Allocated Costs5,667 4,939 
Consolidated depreciation$88,895 $78,382