Sansiri, Thailand's leading property developer, is scaling its T77 clean energy community model across 18 nationwide projects (103.8B baht portfolio). The company has installed 1,200 EV chargers, 3,800 solar systems, and achieved 7,000 tonnes CO2 reduction. In partnership with Ladkrabang Institute of Technology, Sansiri is testing graphene-infused precast walls to reduce building temperature by 2°C (deployment expected 1–2 years). Initial results show 20–35% electricity savings across pilot condominiums. This mainstream scaling of energy-efficient design signals broader ESG commitment in Thai real estate and competitive differentiation for SME tenants seeking sustainable office/retail spaces.