 It took four years to build and so far cost €35 million (US$46 million).PS10 produces about 23,400 megawatt-hours (MW·h) per year, for which it receives €271 (US$360) per MW·h under its power purchase agreement, equating to a revenue of €6.3 million per year.The mirrors were delivered by Abengoa, the solar receiver was designed and built by , a Spanish engineering company; and the Solar Tower was designed and built by ALTAC, another Spanish engineering and construction company.