generate questions: Shuman built the world’s first solar thermal power station in Maadi, Egypt, between 1912 and 1913. Shuman’s plant used parabolic troughs to power a 45–52 kilowatts (60–70 hp) engine that pumped more than 22,000 litres (4,800 imp gal; 5,800 US gal) of water per minute from the Nile River to adjacent cotton fields. Although the outbreak of World War I and the discovery of cheap oil in the 1930s discouraged the advancement of solar energy, Shuman’s vision and basic design were resurrected in the 1970s with a new wave of interest in solar thermal energy. In 1916 Shuman was quoted in the media advocating solar energy's utilization, saying:
Where did Shuman build the world's first solar thermal power station? {sep_token} How many liters of water per minute did Shuman's engine pump in litres? {sep_token} In what decade were Shuman's ideas about solar energy revived? {sep_token} Where was the first solar thermal power plant built? {sep_token} What was used to power the plants engine? {sep_token} From what river did the engine pump water? {sep_token} What slowed down the growth of solar energy? {sep_token} When was the interest in solar energy restored?