On the roof of the Nikini building, four stories up, it’s a windy day. Employing some caution, we step delicately along a narrow passage between an array of solar panels. Sharing our tenuous perch is Upendra Weerasuriya, proud owner of Sri Lanka’s first zero-energy building. First opened in 2008, the structure’s design ensures enough energy is generated to meet its daily requirements, even allowing for excess energy to be donated to the public grid. Currently, the building houses the offices of Mr. Weerasuriya’s industrial automation business along with his personal residence
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