The operator of Wink hotels estimates that heat-insulating walls and windows can cut air-conditioning electricity costs by VND 800 million to 1.2 billion per year for each hotel. Indochina Kajima has developed and operated six Wink hotels in Vietnam over five years, using double-glazed glass with a U-value of 1.2 W/m2.K, while its first property had a U-value one and a half times higher. Insulation adds about 5-10% to total project capital, but the company estimates the extra investment could be recovered within 1.5-2 years, based on 75% occupancy, 6-10 hours of AC use daily and electricity at VND 2,000-2,500 per kWh. Experts note that developers often prioritise upfront costs over lifecycle costs, while the number of days reaching 38-39°C in Vietnam is forecast to rise from 20 to 60 per year by 2050.
Summary written by Upside AI from the original article. Read the source for full details.
Original headline: Khách sạn tiết kiệm cả tỷ đồng tiền điện mỗi năm nhờ cách nhiệt
Read the original on VnExpress ↗
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