华盛顿州埃弗雷特市的一个综合社区能源系统已经确定，该系统使用热泵（HPICES）来提高废弃工业能源的质量。大型造纸厂和纸浆厂提供了低品位的废能源。该厂每年358天，每天24小时运行，每天通过四条排放管线排放5260万加仑（200000 m3/天）的温水至普吉特湾。该工厂位于市中心，因此输送管道的长度最小。该能源可用于满足市中心商业区和周边高密度住宅区的空间供暖需求和饮用热水生产。预计将有40%的商业用户和60%的住宅用户。考虑了两种热泵策略。中央战略包括位于排水口“水源”附近的大型热泵，其中包括水- 用户现场的空气热交换器。分布式策略包括排水口“源”处的水-水热交换器和用户现场的热泵。经济分析表明，在预计的30年系统寿命内，这种节能概念与传统空间空调系统相比具有成本竞争力。引文:研讨会，ASHRAE交易，第86卷，第一部分，加利福尼亚州洛杉矶

An integrated community energy system for the city of Everett, Washington, using heat pumps (HPICES) to elevate the quality of waste industrial energy has been identified. A large paper and pulp mill provides the source of low-grade waste energy. The mill operates 24 hours per day, 358 days per year, exhausting 52.6 million gallons per day (200,000 m3/day) of warm water through four outfall lines to Puget Sound.This plant is centrally located within the city so that transmission pipeline length is minimal. This energy can be applied to satisfy the space heating demand and potable hot water production for the downtown commercial district and surrounding high density residential area. A mix of 40 percent commercial and 60 percent residential subscribers is predicted.Two heat pumping strategies were considered. The central strategy incorporates large heat pumps located near the outfall "sources", with water-to-air heat exchangers at the subscribers' sites. The distributed strategy incorporates water-to-water heat exchangers at the outfall "source" and heat pumps located at the subscribers' sites. Economic analysis indicates that this energy conservation concept is cost competitive with conventional space conditioning systems over the projected 30-year system lifetime.