[MVTimes] The select board approved a request for a 2,500-gallon commercial propane tank for 79 Turkeyland Cove Road in Katama — owned by former President Barack Obama and First Lady Michelle Obama. "We’ve never had a private propane tank come to us," said select board member Arthur Smadbeck, with select board member Michael Donaroma noting a private-residence propane tank is typically a fraction of the quantity being requested.
Could it be the Donks have found a way to convert solar power to propane?
Checked out Google Streetview (check out the satellite view), and the address, in Edgartown MA is not waterfront. Investment property maybe?