| Insulation Level | Increase Compared to Traditional Buildings | Based on 10,000㎡ | Energy Consumption Savings per Square Meter per Year | Savings for 10,000㎡ | Payback Period | Number of Energy-saving Years in 50-year Building Life | Comprehensive Savings | Usage Standard |
|---|---|---|---|---|---|---|---|---|
| 8cm Internal Insulation | 60 yuan | 600,000 yuan | 20 yuan | 200,000 yuan | 3 years | 47 years | 9.4 million yuan | Winter ≥ 10°C, Summer ≤ 30°C |
| 15cm Internal Insulation | 85 yuan | 850,000 yuan | 35 yuan | 350,000 yuan | 2.5 years | 47.5 years | 16 million yuan | Winter ≥ 13°C, Summer ≤ 28°C |
| 20cm Internal Insulation | 160 yuan | 1.6 million yuan | 45 yuan | 450,000 yuan | 2 years | 48 years | 20 million yuan | Constant temperature of 22°C |
I. Advantages and Disadvantages Compared with Traditional Buildings
Integrated pouring is more robust and less prone to cracking.
Full concrete pouring is less prone to efflorescence.
Internal insulation provides safer usage and better insulation effects.
Investment and Return Ratio
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.
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.
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.
