Abstract：
The energy consumption structure of Jingtian Energy Investment Headquarters demonstrative project is researched to analyze its resource conditions and energy supply and demand and to introduce economic, reliable, low–carbon and effective technical schemes for energy–saving reconstruction of existing building. Various techniques, such as tubular daylight solar device, high–performance enclosure structure design, passive natural ventilation technique, solar–ground source heat pump combined cooling and heating system and rainwater recycling technique, etc., could be used to realize more effective energy–saving reconstruction.
