有储蓄能量、稳定压力、减少电耗等功能。
Its function is storing pressure, reducing power consumption.
采用小功率强劲的进口电机，减少电耗，功率仅180W。
Using small power strong import motors, reduce power consumption, power 180W only.
这可以减少该建筑年均210万BTU（英国能量单位）的供热，减少多达50%的电耗，这项费用可以够支付储存太阳能项目消耗五年。
Potentially, this could reduce a building's annual heat load by 2.1 million BTU's -- offloading as much as 50 percent of grid electricity and paying for itself in savings within five years.
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