Andasol solar power station

Andasol consists of three projects: Andasol-1 (completed 2008), Andasol-2 (completed 2009) and Andasol-3 (completed 2011). Each project generates approximately 165 GW-h each per year (a total of 495 GW-h for all three combined), Andasol has a thermal storage system which absorbs part of the heat produced in the solar field during the day. This heat is then stored in a molten salt mixture of 60% sodium nitrate and 40% potassium nitrate. This process almost doubles the number of operational hours at the solar thermal power plant per year. The total cost of building the three projects was estimated at €900 million. == Rationale ==

Andasol 1 cost around €300 million (US$380 million) to build. Thermal energy storage costs roughly US$50 per kWh of capacity (150 lbs of salt per kWh at a storage temperature of 400 °C), according to Greg Glatzmaier of the U.S. National Renewable Energy Laboratory (NREL), totaling about 13% of Andasol's initial cost. Under current government policy in Spain, solar-thermal electricity will receive a feed-in tariff of just under €0.27/kW·h for the next 25 years. Although water supply is generally a problem in Spain, Andasol has ample supply due to its location near the Sierra Nevada mountain range. == Developers ==

Andasol 1 and 2 The developer of the Andasol 1 and Andasol 2 plants are Solar Millennium (25%) and ACS Cobra (75%). After planning, engineering and construction Solar Millennium sold their shares to ACS Group. In 2017, the two international funds, Antin Infrastructure Partners and Deutsche Asset Management's infrastructure investment business, and the Spanish construction company Cobra Sistemas y Redes, sold full ownership to Cubico Sustainable Investments Limited. Andasol 3 Andasol 3 is developed by the consortium of Solar Millennium and MAN Ferrostaal. Marquesado Solar SL is the investor consortium which is going to commission and operate Andasol 3. Shareholders of Marquesado Solar SL are: • Stadtwerke München (48.9%) • MAN Ferrostaal AG (26%) • Innogy & RheinEnergie AG (25.1%) == See also ==