If the six-year plan were implemented, it is estimated that, in addition to having a completely refurbished Headquarters site, there would be substantial energy cost savings of some $164 million over the 25-year period in comparison with the reactive approach.
六年期总计划一旦完成，估计不仅总部全部焕然一新，相较于被动方式，在25年期间将可节省能源费用约1.64亿美元。