A little change can make a difference. On October, 3, 2016, the elevator mode of operation was changed. If you recall, the elevators always returned to the lobby level. When the elevator was called to an upper floor, power was consumed to pump the hydraulics each time: a lot of empty trips.
Since October 2016, the elevator stays at the floor last called. That eliminated the unnecessary up-and -down which used power. Here's the net result comparing the before and after. Quite frankly, it is a surprise that it is visible given seasonal effects of people and weather; but, when compared to data before 2015 and since then, there is a statistically significant change in power consumption.
Bottom lines:
7083 KWH less over the first 12 months or a 14.7 % reduction in energy consumption
The results was a $637 reduction in costs or 10.3 %.
The cost reduction percentage was less than the energy reduction percentage due to rate changes.
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| 12 months of kwh meter readings at 900 Marshy Cove |
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| 12 months of Energy Savings month by month |
A message from the 900 Marshy Cove Board of Directors
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