Glass Insulation - Choose ESEC Glass Insulation - Choose ESEC Glass Insulation - Choose ESEC Glass Insulation - Choose ESEC Glass Insulation - Choose ESEC Glass Insulation - Choose ESEC Glass Insulation - Choose ESEC Glass Insulation - Choose ESEC
Zhongke Nengkong Technology Co., Ltd. ESEC
Modern glass curtain wall building energy-saving technology background

Insulating View-Through Shading Window Curtain Smart Energy-Saving Calculator

Transparent Envelope Energy Efficiency Expert
👤 Your Contact Details Free Assessment

Fill in your contact details to receive free Custom Energy-Saving Plan & Quote. Your information is kept strictly confidential. You may also skip this and calculate directly.

Please enter your name
Please enter a valid mobile number
☀ What is inside sunlight?

Solar radiation reaches the earth's surface in three wavelength bands. Each band's Energy Share differs, and so do its effects on the indoor environment:

UV 5%
Visible 43%
Near-Infrared (Heat) 52%
Ultraviolet
100-400nm
Visible Light
400-700nm
Near-Infrared
700-2500nm
⚠ UV (5%)
Invisible. Causes sunburn and fading/aging of furniture. Small energy share but significant harm.
👁 Visible Light (43%)
Light visible to the human eye. Provides daylighting, but becomes heat when absorbed by indoor objects.
🔥 Near-Infrared (52%)
Invisible heat radiation. Over half of solar energy, and the main cause of indoor heating.
💡 Key Insight
Of solar radiation, More than half (52%) is invisible near-infrared heat radiation. ESEC window curtain uses96.5% NIR reflectance to keep heat out, total solar reflectance up to 88% - the physics behind high-performance insulation.
🛡 How does the curtain block selectively?

ESEC window curtains treat each wavelength band with a different reflect/transmit strategy - Highly reflect NIR heat, control visible light transmission：

Ultraviolet
Blocks 99.9%
→ Transmits 1%
Visible Light
Reflects/Absorbs 97% (visible band)
→ Transmits 3%
Near-Infrared
Reflects 96.5% (NIR band)
→ Transmits 3.5%
📊 Energy Transmitted Through the Curtain
Solar energy entering the room through the curtain accounts for only About 3% — the curtain reflects88% of solar energy. Of the transmitted portion, visible light is about 41% and near-infrared about 58%.Total solar reflectance 88%、NIR reflectance 96.5% - extreme insulation through high reflectance.
⚠️ Measurement note: NIR reflectance 96.5% and visible-light reflectance/absorption 97% are bothper bandmeasured values that cannot be directly summed or equated to total solar blocking; the energy calculations in this tool uniformly use theTotal solar reflectance 88%.
1 Step 1 · Basic Information
m²
m²
W/m²·K
—
⚙ Advanced Parameters (Product Spectral & Operating Parameters) ▼
🧪 Product Spectral Performance Parameters
%
%
%
W/m²·K
%
CNY/m²
%
%
⚙ Operating Parameters
CNY/kWh
🌡 Summer/Winter Savings Mechanisms
☀️ Summer · Reflecting Solar Heat
The curtain reflects 88% of solar radiant heat → indoor heat gain drops sharply → AC Raise by 3°C, or evenpause operation
❄️ Winter · Blocking Heat Loss
The curtain blocks indoor heat from escaping through the window → indoor temperature Raise by about 2°C → heating load reduced
🏢 Enterprise Value Assessment Parameters (McKinsey Value Levers Model · Click to Expand) ▼

Enter your company profile to assess the combined value of window curtains across employee comfort, productivity, ESG and more. Based on the McKinsey value-lever framework.

people
×10k CNY/yr
%
×10k CNY/yr
CNY/tonne
✓ Calculation Results
🌈 Solar Energy Composition — How Much Heat Does the Curtain Block
🔬 Spectral Analysis
⚡ How Savings Work — From Light to Heat to Electricity
☀
Solar Radiation
0 kWh
→
🛡
Curtain Blocks
0 kWh
→
🔥
Less Heat
0 kWh
→
❄
Less AC Power
0 kWh
Annual Electricity Saved
0kWh
Equivalent to 0 households' annual electricity use
Annual Electricity Cost Saved
¥0
Saved per m² 0 CNY/yr
Annual Carbon Reduction
0kg CO₂
Equivalent to planting 0 trees
Payback Period
0yr
Total Investment ¥0
🧴 UV Protection Benefits
🪑
Longer Furniture Life
About 3x
🎨
Slower Fading
↓ 99%
🧴
Skin Protection
UPF 50+
📊 Summer Solar Heat — Before vs. After Installation
Before Installation
0
kWh/yr
→
After Installation
0
kWh/yr
↓
Reduction
0
kWh/yr
📊 Energy Savings Breakdown
Summer Cooling Savings 0 kWh
0
Winter Heating Savings 0 kWh
0
🌡 Summer Temperature-Adjustment Savings(estimated) 0 kWh
0
Peak Load Reduction 0 kW
0
☀️❄️ Summer/Winter Dual-Season Savings Mechanism
☀️ Summer · Reflecting Solar Heat Gain
🔆
Solar Radiant Heat
Reaches the Window
→
🪟
Curtain Reflects
88%Solar Heat
→
❄️
Air ConditionerRaise by 3°C
or evenpause operation
Heat Blocked0 kWh
Cooling Electricity Saved0 kWh
Raise AC Setpoint0°C
❄️ Winter · Blocking Heat Loss
🔥
Indoor Heat
Escapes Outward
→
🪟
Curtain Shielding
Reduction1.0Heat Loss
→
🌡️
IndoorRaise by about 2°C
Heating Load Reduced
Insulation Heat Savings0 kWh
Heating Electricity Saved0 kWh
Indoor Temp Rise0°C
📋 Detailed Calculation Data
Item Value Unit Description
💡 Smart Recommendations
📈 10-Year Cumulative Savings Forecast(conservative scenario: includes 1.5%/yr curtain performance aging derating)
YearCumulative Electricity Saved (kWh)Cumulative Savings (CNY)Cumulative Carbon Reduction (kg)
📊 Enterprise Value Assessment
Based on the McKinsey value-lever model - window curtains create value far beyond electricity savings, spanning productivity, employee retention, ESG and more
Total Annual Economic Value
¥0×10k
Direct Energy Savings + Carbon Assets + Productivity + Staff Retention + Equipment Life + Reduced Sick Leave
💰 Six-Dimension Breakdown of Economic Value
⚡ Direct Energy Savings Value
¥0×10k/yr
AC cooling + heating electricity cost savings
🌍 Carbon Asset Value
¥0×10k/yr
Annual carbon reduction × carbon trading price — tradeable in carbon markets or offset against carbon tax
📈 Productivity Improvement Value
¥0×10k/yr
Comfortable environments boost work efficiency (McKinsey: 3-8% productivity gain)
🤝 Employee Retention Value
¥0×10k/yr
Higher satisfaction lowers turnover, cutting recruitment and training costs
🪑 Extended Equipment Life
¥0×10k/yr
99.9% UV blocking extends the life of furniture/flooring/artwork by 2-3x
🏥 Reduced Sick Leave Value
¥0×10k/yr
Less glare/heat-related eye strain and discomfort, lowering sick leave rates
🌱 ESG Value Assessment
E
Environment
S
Social
G
Governance
📋 Comprehensive ROI Analysis
ItemValueUnitDescription
📐 McKinsey Value Leverage Model Explained
This assessment applies the McKinsey "value-lever framework", breaking value creation intoFinancial Value (energy savings, carbon assets), Operational Value (productivity, equipment life), Human Capital Value (employee retention, health), and Brand & Compliance Value (ESG, green certification). Data sources: McKinsey healthy-building productivity research, the WELL Building Standard, and China carbon market (CEA) trading data. All parameters can be adjusted in the Enterprise Value section above.
Follow "ESECJ Energy Service" official account
ESECJ Energy Service official account QR code
Long-press to scan the QR code
📄 Free Energy-Saving Plan 💰 Product Quote Inquiry 🏢 Project Case References
Zhongke Nengkong (Beijing) Technology Co., Ltd.
Results of this tool are estimates for reference only. Actual energy savings are subject to on-site testing.