Guernsey ice energy storage system

What are ice storage systems?

Ice Storage Systems. Ice Storage Technology for the Energy Transition The sp.ICE is a modular ice storage system which, with its compact dimensions and very short charging times, is a high-end product for use as a full-load storage system.

What is a full ice storage system?

A full storage system minimizes the cost of energy to run that system by entirely shutting off the chillers during peak load hours. The capital cost is higher, as such a system requires somewhat larger chillers than those from a partial storage system, and a larger ice storage system.

How does ice storage affect energy cost?

This definition has the useful effect of the ice storage (providing “free cooling” to the building) at the numerator and the corresponding energy cost at the denominator. In fact, extracting heat from the storage has a cost due to the electricity needed to drive the compressors of the Water-to-Water Heat Pump (WWHP).

How much ice can a storage facility hold?

A small storage facility can hold enough ice to cool a large building from one day to one week, whether that ice is produced by anhydrous ammonia chillers. Ground freezing can also be utilized; this may be done in ice form where the ground is saturated. Systems will also work with pure rock.

Can ice storage systems be optimized for seasonal energy storage?

While the optimization of the design and operation of energy systems with seasonal thermal energy storage has been the focus of several recent research efforts, there is a clear gap in the literature on the optimization of systems employing ice storage systems, particularly for seasonal energy storage purposes.

Why do ice storage systems have a higher energy density?

The high latent heat of fusion of water results in a higher energy density for this type of storage compared to water-based sensible storage, leading to smaller volumes. Since the melting temperature of water is 0 °C, ice storage systems are used as a heat source during the heating season, to provide free cooling during summer.