A major Thai real estate developer supports government regulation of solar installation standards to ensure quality control. The executive highlights two structural barriers limiting the "Million Rooftops" policy success: (1) achieving Economy of Scale requires global-level market demand, but Thailand's local market may lack sufficient volume to drive competitive pricing; (2) widespread loan rejection for solar systems forces buyers to depend on cash reserves, damaging credit scores, while complicating security interests since installations sit on residential rooftops. The issue reveals tension between access goals and financing constraints in renewable energy adoption.