The Mojave Solar Project is a solar power plant under construction since 2011, and expected to go online in 2014. It is a solar thermal plant, using mirrored parabolic troughs to make steam to produce electricity, not photovoltaic panels, which are now more common for large-scale solar plants. The Spanish company Abengoa is building the $1.6 billion, 280 megawatt facility. It is located next to the Harper Lake SEGS, another large parabolic trough thermal solar plant. With a combined output of 440 megawatts, these two plants make this the largest solar thermal production site in the world.