Roughly 4,500 workers dedicated over 2.7 million labor hours over the two years of construction until the plants were commissioned and connected to the Spanish national grid.

Their molten salt storage system allows them to continue producing electricity even without solar radiation.

Each one has a nameplate capacity of 50 MW, using SENER parabolic trough collectors creating solar fields of 510,120 square metres on a total surface area of 460 hectares (1,100 acres).

Each plant will have a molten salt thermal storage system containing 28,500 tons of molten salt (60% sodium nitrate / 40% potassium nitrate),[1][2] capable of storing enough heat to generate 750 MWh of electricity — enough to operate at full power for 7.5 hours without sunshine.

They also have high precision optical sensors which track the sun from east to west.