Alternatively, a facility can use ‘off-peak’ electrical power rates which might be lower in the evening to produce ice, which can be integrated right into a developing’s cooling process to lessen need for energy throughout the day. A patented cold thermal energy storage method from O-Hx works by using ice https://purethermal.co.uk/media-news/pure-thermal-webinar-can-icebat-cold-thermal-energy-storage-provide-an-alternative-cooling-design-option/