Friday, 25/09/2026 | 00:02 GMT+7
Even more, what if it could dial back on your thermostat setting and have the right temperature if you enter a cooler room?
Well according to researchers at the Massachusetts Institute of Technology (MIT), that could be possible in the near future.
They have developed a new material that can store solar energy during the day and release it later as heat, whenever it is needed.
They claim the transparent polymer film could be applied to different surfaces such as clothing or window glass to de-ice car windshields.
While chemically-based storage materials, known as solar thermal fuels (STF), have been developed before, “they had limited utility in solid-state applications”, according to the researchers.
Their approach is claimed to be the first based on a solid-state material – in this case polymer – and the first based on inexpensive materials and widespread manufacturing technology.
It can release a burst of around 10°C above the surrounding temperature but they are trying to boost it to 20°C.

Graduate student Eugene Cho, one of the researchers said: “Manufacturing the new material requires just a two-step process that is very simple and very scalable. The system is based on previous work that was aimed at developing a solar cooker that could store solar heat for cooking after sundown but there were challenges with that.”
He added the team realised that if the heat-storing material could be made in the form of a thin film, then it could be “incorporated into many different materials”.
Ngọc Diệp (Energy Live News)
Vietnam Energy Efficiency Community: Develop a Sustainable Ecosystem for Energy Efficiency and Conservation
30/07/2026
Contract Award Notice - Develop tools for analyzing the energy efficiency of sub-projects and assess the current state of the market for energy-saving investment loans (C2.2.12)
Contract Award Notice - Support the development of energy management systems and capacity building (Package C2.2.11)
Bosch Vietnam Optimizes Energy to Advance Sustainable Manufacturing
Vietnam ETE & Greenergy Expo 2026: Promoting Green Transition and Energy Efficiency
Conference on Energy Efficiency and Conservation in 2026
Contract Award Notice - Develop/Upgrade MRV Systems for Selected Industrial Sectors – Package C2.1.26
Hanoi – Thanh Hoa Beer Optimizes Energy Efficiency in Production