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How do buildings save energy?

2025-03-23 Visits: +

(For office buildings, schools, hospitals)


How can modern buildings be both comfortable and energy-efficient? Energy conservation is not just a slogan; it means actually saving on heating and cooling costs. Hebei Sinoma Energy-saving Building adheres to practical energy-saving technologies and higher energy-saving standards. With nearly two decades of experience in energy-saving renovation of existing buildings, it adopts the building structure and insulation integration system to achieve full insulation and full pouring, with integrated molding.


The building structure has an internally placed graphite polystyrene board insulation layer with a heat insulation coefficient of 0.033. Both sides are poured, and the whole is formed by one-time pouring. Compared with other insulation systems such as block brick insulation and external insulation, integrated pouring is more robust, less prone to cracking and efflorescence, and has a lower maintenance cost in the later stage.


Since we aim to save actual usage costs, let's do some calculations based on our practical experience:


Insulation LevelIncrease Compared to Traditional BuildingsBased on 10,000㎡Energy Consumption Savings per Square Meter per YearSavings for 10,000㎡Payback PeriodNumber of Energy-saving Years in 50-year Building LifeComprehensive SavingsUsage Standard
8cm Internal Insulation60 yuan600,000 yuan20 yuan200,000 yuan3 years47 years9.4 million yuanWinter ≥ 10°C, Summer ≤ 30°C
15cm Internal Insulation85 yuan850,000 yuan35 yuan350,000 yuan2.5 years47.5 years16 million yuanWinter ≥ 13°C, Summer ≤ 28°C
20cm Internal Insulation160 yuan1.6 million yuan45 yuan450,000 yuan2 years48 years20 million yuanConstant temperature of 22°C


Certainly, the thickness of the insulation layer can be increased to 15cm or 20cm, and the insulation effect will be more remarkable. The additional construction costs can be recovered in as fast as two years.


In summary, although the initial investment cost is slightly high, the future return rate is higher. The actual usage environment is warm in winter and cool in summer, which complies with the current green building policies and enhances the corporate image!

I. Advantages and Disadvantages Compared with Traditional Buildings

  1. Integrated pouring is more robust and less prone to cracking.

  2. Full concrete pouring is less prone to efflorescence.

  3. Internal insulation provides safer usage and better insulation effects.

Investment and Return Ratio

  1. For 8cm internal insulation, the cost per square meter (building area) is 60 yuan more than that of traditional buildings. Based on a 10,000㎡ building, the increase is 600,000 yuan. The energy consumption savings are approximately 20 yuan per square meter per year. Based on a 10,000㎡ building, the savings are approximately 200,000 yuan. The payback period is 3 years. Based on a 50-year building life, the savings are for 47 years, and the comprehensive savings are approximately 9.4 million yuan. The temperature can be maintained at not lower than 10°C in winter and not exceeding 30°C in summer.

  2. For 15cm internal insulation, the cost per square meter (building area) is 85 yuan more than that of traditional buildings. Based on a 10,000㎡ building, the increase is 850,000 yuan. The energy consumption savings are approximately 35 yuan per square meter per year. Based on a 10,000㎡ building, the savings are approximately 350,000 yuan. The payback period is 2.5 years. Based on a 50-year building life, the savings are for 47.5 years, and the comprehensive savings are approximately 16 million yuan. The temperature can be maintained at not lower than 13°C in winter and not exceeding 28°C in summer.

  3. For 20cm internal insulation, the cost per square meter (building area) is 160 yuan more than that of traditional buildings. Based on a 10,000㎡ building, the increase is 1.6 million yuan. The energy consumption savings are approximately 45 yuan per square meter per year. Based on a 10,000㎡ building, the savings are approximately 450,000 yuan. The payback period is 2 years. Based on a 50-year building life, the savings are for 48 years, and the comprehensive savings are 20 million yuan. It can maintain a constant temperature of 22°C, being warm in winter and cool in summer.


Note: The initial investment cost is high, but the future return rate is high. The usage environment is good, and it has government support. In the later stage, it can be selected as a low-carbon park or enterprise, which helps to improve the relationship between the enterprise and the government and enhance the corporate image!

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