节能履约承包（ESPC）作为在住宅中实施大规模节能项目的一种手段，正受到越来越多的关注。军事住房、联邦补贴的低收入住房和规划社区（共管公寓、联排别墅、老年中心）等都有机会开展此类项目。在这些项目中，准确的（施工前）节能估算可以降低风险，降低融资成本，并有助于避免因履约合同基线调整而产生的施工后争议。本文展示了一种在施工前估算节能的改进方法。使用根据现场收集的施工前能源使用数据校准的工程模型，该方法能够高精度地预测实际节能。 路易斯安那州波尔克堡的地热热泵ESPC的施工后能源使用数据验证了这一点。该方法还可以确定综合节能项目中安装的各种节能措施的相对影响。例如，波尔克堡为地热泵、减温器、照明改造和低流量热水出口节省了大量资金。单位:双引文:研讨会，ASHRAE交易，1998年，第104卷，pt。1A，旧金山

Energy savings performance contracting (ESPC) is now receiving greater attention as a means of implementing large-scale energy conservation projects in housing. Opportunities for such projects exist for military housing, federally subsidized low-income housing, and planned communities (condominiums, townhomes, senior centers), to name a few. Accurate prior (to construction) estimates of the energy savings in these projects reduce risk, decrease financing costs, and help avoid post-construction disputes over performance contract baseline adjustments. This paper demonstrates an improved method of estimating energy savings before construction takes place. Using an engineering model calibrated to pre-construction energy-use data collected in the field, this method is able to predict actual energy savings to a high degree of accuracy. This is verified with post-construction energy-use data from a geothermal heat pump ESPC at Fort Polk, Louisiana. This method also allows determination of the relative impact of the various energy conservation measures installed in a comprehensive energy conservation project. As an example, the breakout of savings at Fort Polk for the geothermal heat pumps, desuperheaters, lighting retrofits, and low-flow hot water outlets is provided.Units: Dual