「英中对照」Envelo智能方案未更换HVAC 助伦敦3 Pancras Square验证区域通风能耗降31%并改善空气质量
Envelo cuts ventilation energy use by 31% at 3 Pancras Square whilst also improving air quality
伦敦3 Pancras Square办公建筑采用Envelo的通风智能优化方案，在未更换或升级现有HVAC基础设施的前提下，经工程咨询公司Hoare Lea独立验证的区域通风能耗降低31%，多项空气质量指标得到改善。
该案例为存量办公建筑在不改动HVAC硬件的前提下挖掘通风节能潜力提供了实测参考，相关智能控制路径对同类节能项目具备借鉴意义；但31%的节能率仅适用于独立验证区域，全楼成本收益、回报率及减碳数据均为估算值，落地效果需结合建筑自身条件核验。
An already energy-efficient London office building has cut ventilation energy use by 31% using intelligent software and IoT sensors, without replacing or upgrading its existing heating, ventilation and air conditioning (HVAC) infrastructure.
3 Pancras Square (3PS), a 10-storey commercial office building on London’s King’s Cross Estate and home to Havas UK, already had 70% heat recovery and CO₂-based ventilation optimisation in place.
With few obvious efficiency gains left to find, Havas worked with building technology company Envelo to explore whether smarter control of the existing ventilation system could deliver further savings while maintaining a healthy and comfortable working environment.
Independent analysis by engineering consultancy Hoare Lea found that Envelo’s AUTO platform reduced ventilation energy use by 31% across the independently validated portion of the building. The project achieved a 13-month payback, while air quality was maintained and improved across several measured indicators.
Based on whole-building estimates using the same methodology, Envelo is expected to deliver annual energy cost savings of £46,000, a net annual return of £23,000 after costs and a 97% annual return on investment from year two onwards.
The project is also expected to save 31 tCO₂e a year, equivalent to a sustained 5.8% reduction in Havas UK&I’s total Scope 2 carbon emissions.
来源：Smart Buildings Magazine · smartbuildingsmagazine.com