声明称，在路易斯安那州波尔克堡，4003套住房单元的空间调节系统已根据节能性能合同转换为地热热泵。与此同时，还安装了荧光灯、低流量淋浴头和阁楼隔热等其他节能措施。独立评估表明，该项目在电能使用方面节省了2560万千瓦时，占家庭住房改造前用电量的32.4%。峰值电力需求减少了6761千瓦，即40.2%或改造前的峰值需求。每年可节约天然气约26万立方米。陆军已经能够将家庭住房暖通空调维护的未来支出控制在以前成本的77%左右。 概述了设计和实施合同的方法。注:这些是监测数据中观察到的“明显”节能，而不是作为付款依据的“合同”节能。单位:I-PKEYWORKS:1997年，案例研究，美国，住房，节能，能源管理，合同，经济学，热泵，土壤，住房，维护，地热能激励:研讨会，ASHRAE交易，第103卷，第2部分，波士顿1997年

States that at Fort Polk, Louisiana, the space conditioning systems of 4003 housing units have been converted to geothermal heat pumps under an energy savings performance contract. At the same time, other energy efficiency measures such as fluorescent lights, low-flow shower heads and attic insulation were installed. An independent evaluation indicates that the project has resulted in a 25.6 million kWh savings in electrical energy use, or 32.4% of the pre-retrofit electricity consumption in family housing. Peak electrical demand has been reduced by 6,761 kW, 40.2% or pre-retrofit peak demand. Natural gas savings are about 260,000 therms per year. The Army has been able to cap future expenditure for family housing HVAC maintenance at about 77% of its previous costs. Outlines the method by which the contract was engineered and implemented. Notes these are 'apparent' energy savings observed in the monitored data and not 'contracted' savings used as the basis for payments.Units: I-PKEYWORDS: year 1997, Case studies, USA, housing, energy conservation, energy management, contracts, economics, heat pumps, soil, housing, maintenance, geothermal energy