April 2026
Related Article:
Demands on Region's Infrastructure Boost Project Starts
Click below for earlier editions:
2024 |
Click here for archived ENR Mountain States & ENR Southwest top lists.
| Rank | Project/Location | Project Cost ($ Mil.) | Start Date/ End Date |
Owner | Team |
|---|---|---|---|---|---|
| 1 | Taiwan Semiconductor Factory Fab 3, Phase 3 Phoenix |
20,000 | April 2025 2030 |
TSMC Arizona Corp. | Design: TSMC North America GC: Various |
| 2 | Sierra Solar 400 MW and Storage 400 MW, Phase 1 Fallon, Nev. |
1,540 | April 2025 2027 |
NV Energy - HQ | GC: NV Energy - HQ |
| 3 | Dusty Rose Wind Stratton, Colo. |
800 | Sept. 2025 Dec. 2026 |
NextEra Energy Resources | Design: NextEra Energy Resources |
| 4 | Rail Tie Wind Tie Siding, Wyo. |
756 | March 2025 July 2027 |
Repsol USA/ConnectGEN LLC | Design: Repsol USA/ConnectGEN LLC |
| 5 | Centennial Flats 500 MW, Phases 2, 3 & BESS Salome, Ariz. |
398 | Feb. 2025 July 2026 |
Copia Power | Design: McCalmont Corp.; Atlas Technical Consultants; DLR Group EPC: McCarthy Building Cos. |
| 6 | Pediment BESS 250 MW Mesa, Ariz. |
398 | Sept. 2025 Nov. 2026 |
Aypa Power | GC: Mortenson |
| 7 | DHS Santa Cruz County Border Wall Rio Rico, Ariz. |
309 | Aug. 2025 TBD |
U.S. Customs and Border Protection | Design/GC: Fisher Sand & Gravel Co. |
| 8 | Starlight Energy Center 100 MW Belen, N.M. |
290 | Oct. 2025 Dec. 2026 | NextEra Energy Resources LLC | Design: NextEra Energy Resources LLC |
| 9 | San Juan Lateral Water Treatment Plant Sheep Springs, N.M. |
267 | March 2025 Dec. 2028 |
U.S. Bureau of Reclamation | Design/GC: Jacobs |
| 10 | Switch Nap 17 & 18 Data Center Las Vegas |
258 | April 2025 July 2026 | Switch Inc. | Design: Westwood GC: VT Construction/Martin-Harris Construction |
| *Top Starts project details were derived from data provided by Dodge Data & Analytics, reports from within the public record and information provided by the project teams. NA — Not available. |
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