Phase I of this research project is complete. ComEd now has a better understanding of the market and the potential for three refrigeration thermal energy storage (TES) approaches (static thermal mass, phase change material and external storage) in the ComEd service territory. During Phase I, the project team defined the market in the ComEd service territory, quantified the potential energy savings and established the feasibility of shifting load throughout the day for each TES approach. The economics of each approach was analyzed and feedback on the technologies from refrigerated warehouse and industrial food processing vendors in the ComEd service territory was obtained.
The results from Phase I of the project demonstrates that TES in refrigerated facilities has potential to save kWh for several ComEd customer types. TES also offers customers the ability to reduce peak demand by shifting their loads. Static thermal mass is the most promising of the three approaches but is limited to freezers. The phase change material approach may also be viable. As the most expensive approach in most scenarios, external storage is likely the least viable approach in the ComEd service territory.
Phase II of this project is underway. This phase of the project will study on-site performance of the TES approaches identified as the most promising in Phase I—static thermal mass and phase change materials. The project team is currently recruiting for 2021 demonstration sites.
TES pilot participants will receive generous incentives from ComEd, technical assistance from start to finish (including establishing the most cost-effective energy storage schedule) and detailed monitoring data. Participants may also receive benefits from the system installation, like reduced operation and maintenance costs, energy usage and energy bills. The project team will evaluate opportunities for refrigeration system enhancements and incentives for participating facilities beyond the TES pilot such as refrigeration variable frequency drives and lighting retrofits.
Who is Eligible?
Owners of existing cold storage facilities, grocery stores or other buildings with large refrigeration systems are ideal candidates for this pilot.
Interested in Participating?