Missouri River Energy Services (Moorhead Public Services) has five helpful hints to cut your energy costs in the summer months. I have a couple comments…
#3. Adjust cooling equipment to occupancy schedules.
In the upper midwest this provides larger energy percentage savings due to the narrow spread between the summer design temperature and the indoor temperature.
Unlike the winter where the spread would be 5% in the summer the spread is closer to 25%.*
In the evening this spread narrows more until your cooling equipment doesn’t run at all.
Note: If you are on a Time-of-Day rate, be sure to program your equipment to come back on early enough to take advantage of the lower energy rates.
#4. Upgrade lighting systems.
“Efficient lighting technologies also give off less heat, which reduces the need for air-conditioning.”
This savings is rarely calculated, but it is real and substantial. For commercial buildings. even in our cool climate, we often find cooling equipment running six months or more during the year. By cutting the internal load of your building, not only does your equipment run less, but you can also resize the equipment when it is time to replace it, creating even more savings in upfront equipment costs and maintenance.
(5 degree setback / (70 degree indoor temperature – (-30 Degrees) winter design temperature)) = 5/100 = 5%
(5 degree setback / (90 degree Summer design temperature – 70 degree indoor temperature)) = 5/20 = 25%
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