Energy Management Systems

What are Energy Management Systems?

Energy Management Systems (EMS) are used to control energy-using equipment and reducing wastage that results from improper or unnecessary operation of HVAC systems , lighting devices and controls or other electrical and mechanical systems.

Incorporating Energy Management Systems

Building owners can gain insights into the working of their buildings’ HVAC (heating, ventilation and air conditioning) systems when they are actively involved in the integration of Energy Management Systems into their buildings. While it may be ideal for a facility to incorporate energy-saving equipment during the design phase, renovations and upgrades provide a good opportunity for incorporating Energy Management Systems. Replacement of HVAC equipment is an opportune time for new EMS controls to be put in. Although installation costs are lowest when Energy Management Systems are incorporated during equipment downtime or new construction, existing buildings can take advantage of these energy-saving systems by evaluating the potential for energy cost reduction to determine the project’s rate of return. As seen in the case of most commercial buildings, EMS controls provide ample energy savings resulting in a high internal rate of return (IRR) and relatively short payback period for the proposed project.

Benefits of Energy Management Systems

Building tune-ups conducted as part of retro-commissioning help to analyze and optimize a building’s HVAC and lighting systems’ time/ set-point schedules, which are often automatically programmed into the energy management systems. Investigating the energy data collected through an EMS during tune-ups determines whether HVAC and lighting systems are functioning optimally.

Innovative Energy Management Systems

With energy efficiency in buildings fast becoming a primary concern (goal) for owners, managers and regulators, Energy Management Systems provide the potential for cutting costs and improving comfort in all types of settings. One type of Energy Management System can be used for monitoring and analyzing facilities’ power consumption at multiple locations1. The EMS includes a primary server connected to at least one building server through a computer network, while each of the building servers in multiple locations are connected to one or more energy meters contained in the building. The primary server, which aggregates information from multiple locations, can be accessed by remote monitoring stations to view and analyze energy consumption data. Property managers that have incorporated such Energy Management Systems in their buildings have an advantage over non-users because not only do they get access to real-time energy usage data but are also able to provide such data to auditors for delivering deeper-level energy analysis during energy audits and retro-commissioning (mandatory under Local Law 87).

Our Process

The Energy Solutions team at Associated Renewable, comprising of EMS experts, energy engineers, mechanical and electrical systems specialists, appraises existing properties and new construction for integration of Energy Management Systems. Our technical experts will conduct detailed evaluations of your properties’ energy infrastructure and base systems to create custom EMS solutions for ‘whole-building’ energy monitoring and analysis. Contact our Energy Solutions team for a fuller understanding of our customized EMS solutions that are guaranteed to increase your energy savings, ensure compliance with energy mandates and improve your sustainability profile.




1Source: Retrieved from the U.S. PTO; United States Patent Number 6553418, Collins, et al., April 22, 2003