The Mall Lifestore Ngamwongwan Wins First Place at the Asean Energy Awards 2026 in the Retrofitted Building Category
Dr. Chatree Pongvilai, VP of System Engineering, represented The Mall Lifestore Ngamwongwan to receive first place at the Asean Energy Awards 2026 in the Retrofitted Building category, at the Gala Dinner held on Wednesday, October 7, 2026, at Museo del Galeón in Manila, Philippines.
5 Key Techniques for a Green Building

1. Positioning the parking area on the south and west sides of the building, built with 100% solid walls.
2. Designing the building envelope with an OTTV (Overall Thermal Transfer Value) of 34.476 W/m² and a Window-to-Wall Ratio (WWR) of 18%.
3. Installing roof thermal insulation to reduce heat entering the building, achieving an RTTV (Roof Thermal Transfer Value) of 6.625 W/m².
4. Upgrading to five high-efficiency chillers, improving energy efficiency from 0.707 kW/TR to 0.55 kW/TR.
5. Green landscaping, planting trees around the building and installing vertical greenery inside the mall.

Energy-Saving Results
The building renovation for energy conservation resulted in total energy savings (2020–2025) of 14 million units, a 27.66% reduction compared to before the renovation — worth 59 million baht in savings, with a payback period of 2.13 years, and a reduction of 7,008.50 tons of CO2 equivalent in greenhouse gas emissions.
Toward an Internationally Recognized Green Building Standard
The Mall Group remains committed to continuing the renovation of existing buildings and the construction of new ones, with attention to aesthetics, modernity, energy efficiency, safety, and sustainability — aiming for internationally recognized green building standards.