Policy Interpretation | The "14th Five-Year Plan" building energy conservation plan is implemented, and the intelligent system window welcomes new development opportunities

The "14th Five-Year Plan for Building Energy Saving and Green Building Development" issued by the Ministry of Housing and Urban-Rural Development clearly states that by 2025, the national energy-saving renovation area of existing buildings will be completed with an area of more than 350 million square meters, and will promote the large-scale development of ultra-low energy-consuming and near-zero energy-consuming buildings. The setting of this goal marks the acceleration period of my country's energy-saving transformation of buildings. As a key component of the building's outer enclosure structure, the improvement of energy-saving performance of doors and windows has become an important breakthrough in achieving building energy efficiency upgrades.​

Policies promote building energy efficiency upgrades, and energy conservation of doors and windows becomes the key
Building energy consumption accounts for more than 20% of the total social energy consumption, of which the heat lost through doors and windows is as high as 40%-50%. Therefore, improving the insulation and insulation performance of doors and windows is crucial to reducing the overall energy consumption of the building. The "Plan" particularly emphasizes the promotion of high-performance doors and windows, and formulates differentiated energy-saving standards for different climate zones. Against this background, the traditional door and window industry is accelerating its transformation toward intelligence and energy-saving directions. Intelligent system windows have become an important technical path for building energy-saving transformation with their ability to adaptively adjust light and heat.

Intelligent System Window: New Trends in Energy-Saving Buildings
In recent years, domestic and foreign scientific research institutions have made significant breakthroughs in the field of smart window technology. For example:
· The thermochromic smart window developed by the University of Science and Technology of China can automatically adjust the light transmittance according to the ambient temperature to achieve annual energy saving of 102.09 MJ/m²;
· The electrochromic smart window developed by Shanghai Silicate can reduce the indoor temperature by up to 14℃ compared with traditional Low-E glass;
· The dual-band regulation intelligent window proposed by Nanjing University of Technology has an energy-saving effect of up to 324.6 megajou per square meter.
These innovative technologies not only improve the energy utilization efficiency of buildings, but also greatly optimize indoor comfort, providing practical solutions for energy-saving renovation of buildings.

The market prospects are broad, and policies help the industry upgrade
The "Plan" proposes that the development of energy-saving buildings will be supported through policies such as financial subsidies, tax incentives, and green finance. At the same time, the proportion of prefabricated buildings has increased to 30%, which will further promote the standardization and large-scale application of high-performance doors and windows. It can be foreseen that driven by the dual driving of policies and markets, intelligent system windows will usher in explosive growth and become the core growth point in the field of building energy conservation.
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