Why the US's biggest solar megaproject is shutting down after a decade

The Ivanpah Solar Power Facility in California’s Mojave Desert, once celebrated as a $2.2 billion flagship of America’s clean energy future, is set to shut down after just a decade of operation. Conceived during the post-2008 financial crisis green stimulus era, Ivanpah was a concentrated solar power (CSP) plant using over 300,000 heliostats to focus sunlight onto towers to generate steam and drive turbines. Backed by federal loans and major investors like Google, it aimed to produce 392 megawatts of power, enough for 140,000 homes, and demonstrate the viability of large-scale, high-tech renewable energy projects. However, Ivanpah’s downfall was largely due to economic and market shifts rather than purely technical issues. While it was under construction from 2010 to 2014, the solar industry rapidly evolved as photovoltaic (PV) panel costs plummeted by nearly 80%, driven by Chinese manufacturing. This made PV solar