California

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Operator NRG says its concentrating solar power technology has fallen behind solar silicon photovoltaic generation in terms of capital and operating costs.

Texas Gov. Greg Abbott asks Congress to reimburse the state for $11 billion it says it spent on its own border wall during the Biden years.

Senior PM Nick Pemberton of MATT Construction, with neighbors and colleagues, used borrowed and donated equipment to quickly move pool water to where it was critically needed as the Eaton blaze spread to his Altadena, Calif., neighborhood.

US Navy cleanup of the former Hunters Point Naval Shipyard continues, but former environmental consultant agrees to settle work related whistleblower suit to avoid "protracted litigation."

Glen Kaneshige with Nordic PCL Construction, Erin McConahey with Arup and Cary Kopczynski of CKC Structural Engineers have been named 2025 Legacy Award winners for ENR West.

Officials continue to prioritize fighting the ongoing wildfires that have already consumed 40,600 acres in the region, but are already strategizing on how to undertake the gargantuan cleanup effort.

The 1.5-million-acre-ft Sites Reservoir is planned in the Sacramento Valley to collect excess water during storms and save it for dry times.

Contining resolution funds are needed to repair and expand South Bay Wastewater Treatment Plant near the US-Mexico border, but other issues may delay cleaning up the region's waters.

The net-zero energy facility in Costa Mesa is planned to have on-site solar, battery energy storage and emergency generators.

A $718-million effort is replacing two existing headworks—a 150-mgd dry weather headworks and 100-mgd wet weather headworks—with a consolidated all-weather 250-mgd headworks facility