We utilize two systems, the Enterprise Energy Management System (EEMS) and the Utility Management System (UMS), to collect, analyze, quantify and report our energy use.
EEMS is our corporate data warehouse where we consolidate facility related energy data that are used in our efforts to reduce energy consumption costs. Performance data are used to verify building and equipment performance, and identify opportunities for improvement. In 2015 the EEMS network was expanded by installing digital communicating control and monitoring devices at 88 facilities, bringing the total of real-time monitored sites to 341 out of a goal of 923 facilities.
UMS monitors utility usage and has made reporting and utility bill management more transparent. In 2015 there were enhancements to the process of reporting data captured by UMS to the Energy Star Portfolio Manager to meet federal energy reporting requirements. Energy Star Portfolio Manager is an analytical and benchmarking tool that enables USPS to reduce energy consumption; track energy intensity, energy cost and greenhouse gas emissions; and monitor changes in buildings over time. By tracking energy use, we’re able to identify under-performing buildings, set investment priorities and track improvements.
Exploring Emerging Technology: Hydrogen Fuel Cells
In 2015 the Postal Service began a pilot project to replace lead-acid batteries used in powered industrial vehicles with a hydrogen fuel cell system. This pilot at the Washington, DC, Network Distribution Center will test the efficacy of the technology and measure the potential impact of national deployment. Hydrogen fuel cells are considered an industry best-in-class alternative to lead-acid batteries as a power source for material handling equipment, particularly in busy distribution centers. The only byproducts of hydrogen fuel cells are heat and water, making them a safer and more environmentally friendly energy source compared to lead-acid batteries. The switch to fuel cells will increase plant and equipment productivity, significantly decrease costs associated with fueling and provide environmental and safety benefits.
