绿色建筑评估计算器
使用绿色建筑评估计算器衡量建筑项目的可持续性表现。评估能效、水资源利用、材料选择和室内环境质量，估算绿色建筑认证得分和节能效益。
Annual Energy Savings
3,375 USD
Annual Energy Savings vs Electricity Rate
公式
How to Calculate Green Building Savings
Green buildings use less energy, water, and resources than conventional buildings.
Formula
Energy Saved = Building Size * Baseline EUI * Energy Savings %
Baseline EUI: ~15 kWh/sq ft/year for commercial, ~6 kWh for residential
Green Building Benefits
计算示例
A 5,000 sq ft green office saving 30% energy and 40% water at $0.15/kWh.
- 01Baseline energy: 5,000 * 15 = 75,000 kWh/year
- 02Energy saved: 75,000 * 30% = 22,500 kWh
- 03Annual savings: 22,500 * $0.15 = $3,375
- 04CO2 reduced: 22,500 * 0.92 / 2,204.6 = 9.39 metric tons
常见问题
Do green buildings cost more to build?
Green buildings typically cost 2-7% more upfront but save 20-40% in operating costs. The payback period is usually 3-8 years, with 20+ years of ongoing savings.
What is a net-zero building?
A net-zero energy building produces as much renewable energy as it consumes annually. This is achieved through high efficiency and on-site solar or other renewables.
How are green buildings certified?
Major certifications include LEED (US), BREEAM (UK), WELL Building Standard (health-focused), and Passive House (energy-focused). Each has different criteria and levels.