This bit from the article, "In 2003, Bush quietly installed a 9 kW solar system on the grounds maintenance building. He also installed two solar thermal systems

This bit from the article, "In 2003, Bush quietly installed a 9 kW solar system on the grounds maintenance building. He also installed two solar thermal systems to supply electricity to the White House, one to heat the spa and one to heat the pool." makes no sense. It is possible to construct from the pieces something that would make sense, but there is no reason to think it would be correct.