Ivanpah's 173,500 mirrors focused enough Mojave sun on three towers to ignite birds in flight, as many as 6,000 a year by one estimate, and two of the towers are now shutting down anyway, not for the
Ivanpah Solar Electric Generating System, a $2.2B solar thermal plant, is partially shutting down due to cost competitiveness with cheaper photovoltaic panels. The plant, backed by federal loan guarantees and owned by entities including Google, has faced issues like bird deaths and underperformance. PG&E, its major customer, sought to terminate contracts, but regulators have delayed the closure. The plant's future remains uncertain, with discussions ongoing about its exit strategy.
How this was made
The 30-second read
Why it matters
The closures represent a shift in renewable energy economics, likely prompting investors to reassess solar‑thermal exposure.
Market read
The article signals a decisive move away from solar‑thermal projects, affecting related renewable energy stocks and utility procurement strategies.
What to watch
Potential environmental remediation costs and possible future policy incentives for renewable retrofits.
Background
Ivanpah, the world’s largest solar‑thermal plant, is being shut down after PV costs undercut its economics, despite earlier federal loan guarantees and ownership by NRG, PG&E, and SCE.
Ticker impact
NRG Energy finalized termination agreements with PG&E and the Energy Department to close two Ivanpah towers, impacting its renewable assets.
NRG may face a short‑term share decline due to asset impairment.
The shutdown removes a $2.2 bn plant from NRG's portfolio, likely prompting a negative earnings adjustment.
PG&E agreed to terminate power purchase contracts for two Ivanpah towers, affecting its procurement costs and ratepayer bills.
Minimal immediate impact; market may price in lower long‑term costs.
The termination lowers future expenses but the regulatory block adds uncertainty.
Southern California Edison is negotiating its own exit from the third Ivanpah tower contract, influencing its power supply strategy.
Likely limited effect on EIX stock unless a replacement deal is disclosed.
Negotiations are ongoing; no concrete outcome yet.
Market effects
Highlights the rapid cost decline of photovoltaic solar versus solar‑thermal, pressuring solar‑thermal assets.
California utility procurement strategies may shift toward cheaper PV projects.
Signals broader industry transition away from solar‑thermal technology.
Counterpoint
If the site is repurposed for PV farms, NRG could monetize the land, offsetting some losses.
Key entities
- CompanyNRG Energy
Owner of the Ivanpah plant, negotiating termination agreements.
- UtilityPG&E
Buyer of two towers' output, exiting contracts.
- UtilitySouthern California Edison
Buyer of the third tower's output, negotiating exit.
