What buildings provide lightning daily I can buy?

None of the buildings that you buy will provide energy. They only provide coins. The buildings that provide energy are called Landmarks and you only get them one at a time when you complete the one before it. They take about 6 months to complete if you renovated them daily. There are 4 of them: Lighthouse, Chapel, Pirate Ship, and Mountain Chateau. The fifth Landmark, the Aviary, does not provide energy.