ConEdison offers incentives to groceries for installation of load-shifting thermal storage systems

Written By: Stratton Report
September 6, 2016


On September 6, Con Edison announced that owners of grocery stores and other cold storage facilities in Brooklyn and Queens can now receive incentives from Con Edison’s Neighborhood Program for installing Axiom Exergy’s thermal energy storage system.The Axiom Exergy Refrigeration Battery helps businesses manage their energy usage and reduces demand charges on their electric bills,

According to Con Edison, over $5 million dollars’ worth of Refrigeration Battery systems are set to be installed at supermarkets and other businesses in parts of Brooklyn and Queens. The 1.5-2MW of energy storage set to be installed has the capacity to shift in aggregate of 6-8 MWh of energy.

Amrit Robbins, President and Co-Founder of Axiom Exergy noted: “We’re thrilled to see that Con Edison is taking an innovative approach to help address surging power demand on its grid by working with grocery store and cold storage facility owners to reduce their energy bills and enhance their razor-thin profit margins. By deploying Refrigeration Battery systems, these locations can convert power-hungry refrigeration systems into intelligent ‘batteries’ that can respond dynamically to the needs of the facility and the grid operator, taking into account energy prices, weather patterns, and grid programs like demand response.”

Using thermal energy storage technology, businesses with large refrigeration-based energy loads can reduce their peak electricity demand by up to 40 percent, according to Axiom.

The Refrigeration Battery uses the existing refrigeration system’s excess capacity to “store cooling” at night by freezing a tank of salt water. During afternoon peak hours, the Refrigeration Battery uses the frozen tanks to supply refrigeration services to the building, eliminating the need to run energy-intensive compressors and condensers. The Refrigeration Battery can also provide backup cooling to reduce uninsured food spoilage during power outages.

Greg Elcock, who manages the Neighborhood program for Con Edison observed: “By working with customers in the Neighborhood Program area to help them use energy more efficiently, we have been able to keep service reliable during another hot New York summer. We will continue to help customers in these sections of Brooklyn and Queens choose from a variety of technologies and energy options that will help them manage their usage.”

The fleet of Refrigeration Batteries in the Con Edison Neighborhood Program will respond to Con Edison’s signals requesting electricity demand reductions. Each Refrigeration Battery can also permanently shift large refrigeration loads away from on-peak hours (when electricity is most expensive) on a daily basis. Controlled by Axiom’s KARL cloud platform, the fleet of Refrigeration Batteries will also provide facility operators and Con Edison with real-time fleet performance monitoring, data analytics, and alerts, adding significant intelligence and flexibility to otherwise unintelligent refrigeration equipment.