Should I count every bulb?


Home Forums Residential Model Specification Appliances and DHW Should I count every bulb?

This topic contains 1 reply, has 1 voice, and was last updated by  Ryan Moore 9 months, 1 week ago.

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    Ryan Moore

    Under “Lighting / Appliances”, when inputting bulb counts, is the model interested only in hard-wired fixtures, or should I report every bulb installed in table lamps, etc.?


    Ryan Moore

    All lights impact modeled electric usage. If you want to get an accurate estimate of how bulb replacements will impact savings, you should report all the bulbs. However, if you’re not reporting that improvement, and you’re giving OptiMiser utility bills to calibrate to, the additional accuracy of the base model may not be worth the effort to count every bulb versus leaving the default assumptions or making an educated estimate.

    If you do propose lighting improvements and are counting all the bulbs, low wattage incandescent bulbs in chandeliers or similar should be counted as fractional.

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