President Carter added water-heating solar panels to the White House #OTD in 1979, to demonstrate an ambitious long term commitment to renewable energy.
President Reagan, who was vehemently opposed to renewable energy, would later order their removal.
The panels weren't removed until 1986, though some of the sources I've seen claim that he ordered the removal as early as 1981. Whatever the timeline, Reagan proposed a budget that reduced Federal funding for renewable energy research by 85%.