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I think the efficiency number is in the correct range for efficiency reduction for water-cooled Links of London. For air-cooled, in many locations, the energy-efficiency ratio (EER) is the same for ice making as peak day cooling because of ambient relief. "In this example, you can see why the distinction between capacity reduction and efficiency reduction is important. A water-cooled centrifugal (chiller) might be 1,000 tons nominal at 0.6 kw per ton (600 kw). Ice-making capacity at night for this chiller is in the range of 782 tons at 0.68 kw per ton (532 kw). It Links of London Sweetie Bracelet With Marine Shell less overall kilowatt demand at night, even though it has reduced efficiency because its capacity is derated for lower operating temperatures. To further optimize the cooling system, the chiller can be rightsized, the delta-T enlarged to reduce flow, and medium-temperature air distributed, saving fan horsepower. Additionally. in a partial storage system, the chiller can be upstream of the ice storage, operating at warmer discharge temperatures, thus, improving its EER over a conventional cooling system's. In other words, the design of the system is critical to efficient operation. One cannot look, in my mind, at only the chiller and storage operation. "A presentation by Florida Power & Light Co. during the American Society of Heating. Refrigerating and Air-Conditioning Engineers' 2008 Links of London W Charm Meeting stated: Typically, cooling load is shifted from a 10,000-Btu-per-kilowatt-hour-heat-rate power generator to a combinedcycle generating plant that uses only 7.000 Btuh per kilowatt-hour. That reduces fossil-fuel usage and emissions a great deal. [Sidebar] "Because source energy is seen as an important measurement of overall efficiency and performance. California Code of Regulations, Title 24, applies hourly time-dependant values to each hour of consumption to tie power-plant heat rates into the energy code. In this way, a life-cyclecost analysis of a building takes into account not only the kilowatt-hours on the Links of London X Charm, but the source energy consumed to make the electricity, based on location and hour of use. "Storage of all types will be necessary to transform our fossil-fuel use to more and more dependable and renewable energy."