Solar power in Arizona has the potential to, according to then-Governor Janet Napolitano, make Arizona "the Persian Gulf of solar energy". In 2012, Arizona had 1,106 MW of photovoltaic (PV) solar power systems, and 6 MW of concentrated solar power (CSP), bringing the total to over 1,112 megawatts (MW) of solar power. The Solana Generating Station is a 280 MW parabolic trough solar plant which is the largest plant of its type in the world. Solana includes 6 hours of power storage by molten salt.