| Schedule of Disaggregation of Revenue |
The following tables present revenue from contracts with customers: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 2026 | | 2025 | | ESS | | PCS | | Total | | ESS | | PCS | | Total | | | | | | | | | | | | | | (in thousands) | Three Months Ended June 30, | | | | | | | | | | | | | Project and other manufacturing contracts revenue | $ | 5,395 | | | $ | 4,698 | | | $ | 10,093 | | | $ | 29,102 | | | $ | 4,037 | | | $ | 33,139 | | | Sale of products | 7,508 | | | 2,986 | | | 10,494 | | | 12,986 | | | 12,849 | | | 25,835 | | Product revenue(a) | 12,903 | | | 7,684 | | | 20,587 | | | 42,088 | | | 16,886 | | | 58,974 | | | Service revenue | 53,815 | | | 35,257 | | | 89,072 | | | 56,722 | | | 35,610 | | | 92,332 | | | Spare parts revenue | 30,942 | | | 30,221 | | | 61,163 | | | 26,737 | | | 25,414 | | | 52,151 | | | Total revenue | $ | 97,660 | | | $ | 73,162 | | | $ | 170,822 | | | $ | 125,547 | | | $ | 77,910 | | | $ | 203,457 | | Six Months Ended June 30, | | | | | | | | | | | | | Project and other manufacturing contracts revenue | $ | 14,416 | | | $ | 7,969 | | | $ | 22,385 | | | $ | 48,276 | | | $ | 9,480 | | | $ | 57,756 | | | Sale of products | 15,651 | | | 15,344 | | | 30,995 | | | 29,923 | | | 26,043 | | | 55,966 | | Product revenue(a) | 30,067 | | | 23,313 | | | 53,380 | | | 78,199 | | | 35,523 | | | 113,722 | | | Service revenue | 97,968 | | | 63,113 | | | 161,081 | | | 98,120 | | | 77,720 | | | 175,840 | | | Spare parts revenue | 70,315 | | | 57,367 | | | 127,682 | | | 56,769 | | | 55,556 | | | 112,325 | | | Total revenue | $ | 198,350 | | | $ | 143,793 | | | $ | 342,143 | | | $ | 233,088 | | | $ | 168,799 | | | $ | 401,887 | |
(a).Product revenue includes related party revenue. The following table presents the timing of revenue recognition: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 2026 | | 2025 | | ESS | | PCS | | Total | | ESS | | PCS | | Total | | | | | | | | | | | | | | (in thousands) | Three Months Ended June 30, | | | | | | | | | | | | | Transferred overtime | $ | 65,013 | | | $ | 39,955 | | | $ | 104,968 | | | $ | 89,340 | | | $ | 39,647 | | | $ | 128,987 | | | Transferred at point in time | 32,647 | | | 33,207 | | | 65,854 | | | 36,207 | | | 38,263 | | | 74,470 | | | Total revenue | $ | 97,660 | | | $ | 73,162 | | | $ | 170,822 | | | $ | 125,547 | | | $ | 77,910 | | | $ | 203,457 | | | | | | | | | | | | | | Six Months Ended June 30, | | | | | | | | | | | | | Transferred overtime | $ | 125,033 | | | $ | 71,082 | | | $ | 196,115 | | | $ | 162,326 | | | $ | 87,200 | | | $ | 249,526 | | | Transferred at point in time | 73,317 | | | 72,711 | | | 146,028 | | | 70,762 | | | 81,599 | | | 152,361 | | | Total revenue | $ | 198,350 | | | $ | 143,793 | | | $ | 342,143 | | | $ | 233,088 | | | $ | 168,799 | | | $ | 401,887 | |
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