Anyone driving the interstate between Las Vegas and Los Angeles has seen it.<\/p>\n
Three pale towers standing on a dry lake bed, and when the array is aimed at them they glow hard enough to pick out from miles off.<\/p>\n
Underneath, mirrors cover five and a half square miles of desert.<\/p>\n
The utility that buys most of the output wanted out. The owners agreed to sell<\/strong>.<\/p>\n Everyone signed. The regulator said no.<\/p>\n And the reason had almost nothing to do with the plant itself, or with the birds<\/strong> it is famous for.<\/p>\n This is not a panel farm.<\/p>\n It is concentrating solar. Thousands of mirrors track the sun and throw its light at a receiver on a tower, which boils water, which drives a steam turbine.<\/p>\n That is a thermal power station with a mirror field instead of a furnace, and it has all the parts a thermal station has.<\/p>\n A photovoltaic panel does none of that. Light goes in, current comes out, nothing turns and nothing boils.<\/p>\n The two technologies then went in opposite directions<\/strong> on cost. Panels fell faster than almost anyone forecast. Mirror fields, turbines and receivers did not, because there is no equivalent of a factory learning curve for a boiler.<\/p>\n And a mirror plant carries a running cost a panel farm never has. On cool mornings it burns natural gas<\/strong> to bring the system up to temperature before the sun can do the work.<\/p>\n The three towers are about 459 feet<\/strong> tall.<\/p>\n Around them sit 173,500 sun tracking heliostats, each carrying a pair of mirrors, spread across roughly 3,500 acres of federal land just south of the Nevada line.<\/p>\n Gross capacity across the three units is 392 megawatts, and the plant came online in February of 2014<\/strong>.<\/p>\n It cost 2.2 billion dollars to build, backed by a federal loan guarantee of 1.6 billion that has not been repaid.<\/p>\n The owners are an independent power producer, the technology company that developed the mirror system, and a search engine that took an equity stake early.<\/p>\n All of which is now sunk, which is exactly the problem.<\/p>\n In January of 2025 the utility asked the state to approve termination agreements covering its contracts on two of the three units.<\/p>\n Those contracts carry roughly 250 megawatts<\/strong> and were written to run until 2039. Ending them would have stopped purchases in early 2026, thirteen years short.<\/p>\n The utility said that ending them would cost customers less than carrying them to term, though the underlying price forecasts are confidential.<\/p>\n The federal energy department, which holds the loan guarantee, supported it<\/strong>.<\/p>\n An independent evaluator reviewed it and agreed it saved money.<\/p>\n The third unit sits under a separate contract with a different utility, and those talks ran separately.<\/p>\n On the fifth of December in 2025 the commission rejected the agreements unanimously, and did it without prejudice.<\/p>\n The reasoning was not about the plant. It was about what would come after it.<\/p>\n Federal policy on renewables had shifted, and the commission decided that uncertainty over replacement projects undermined a core assumption behind its own reliability planning. Stripping out an uneconomic contract only helps if something arrives to take its place.<\/p>\n There is also a number underneath it that the coverage mostly skipped. Ratepayers have already put more than 333 million dollars<\/strong> into transmission built to carry this plant’s output.<\/p>\n Kill the plant and that spending strands. Grid connections and the wires behind them are frequently worth more than the generator<\/a> bolted onto them.<\/p>\n The draft resolution put the position in one line. The plant is too uneconomic to keep and too risky to kill<\/strong>.<\/p>\n The utility can come back, and the ruling says how. It needs to name a concrete replacement project rather than an assumption.<\/p>\n Until then the contracts stand and the mirrors keep tracking.<\/p>\n The exit everyone quietly points at is the land. Three and a half thousand acres already cleared, fenced, permitted and wired into the grid<\/strong> is worth a great deal to anyone building anything.<\/p>\n Repowering that footprint with panels would cost far less than starting on open desert<\/a>, though it would need fresh permits and fresh financing and years of both.<\/p>\n Desert solar has left stranded hardware<\/a> before, and the difference here is that the hardware is still under contract<\/a>.<\/p>\n A plant nobody wants to run and nobody is allowed to stop is not a failure of engineering.<\/p>\n It is what happens when the wires, the loan and the reliability math all outlive the business case<\/strong>.<\/p>\n","protected":false},"excerpt":{"rendered":" Anyone driving the interstate between Las Vegas and Los Angeles has seen it. Three pale towers standing on a dry lake bed, and when the array is aimed at them they glow hard enough to pick out from miles off. Underneath, mirrors cover five and a half square miles of desert. The utility that buys … Read more<\/a><\/p>\n","protected":false},"author":28,"featured_media":35186,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"rank_math_focus_keyword":"mojave desert plant","rank_math_title":"A Mojave plant standing on 173,500 sun tracking heliostats had a signed deal to switch off thirteen years early, and the state regulator threw the deal out and left the mirrors turning","rank_math_description":"The $2.2B Ivanpah solar plant in California's Mojave Desert was set to close early, but regulators blocked the shutdown in a surprise December vote.","footnotes":""},"categories":[8],"tags":[],"class_list":["post-35120","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-energy"],"_links":{"self":[{"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/posts\/35120","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/users\/28"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/comments?post=35120"}],"version-history":[{"count":0,"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/posts\/35120\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/media\/35186"}],"wp:attachment":[{"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/media?parent=35120"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/categories?post=35120"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/tags?post=35120"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Why this kind of solar plant lost the argument<\/h2>\n
What is actually standing out there<\/h2>\n
The deal that everyone involved wanted<\/h2>\n
The vote, and the reason behind it<\/h2>\n
What a plant that cannot close does next<\/h2>\n