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Thread: Sharing electricity expenses estimation

  1. #1
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    Sharing electricity expenses estimation

    The tenant to occupy 5th and 8th floors. How to estimate sharing of HVAC, lights , elevator, fire protection charges, standby generator usage in the absence of submeter? Thanks.

  2. #2
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    Quote Originally Posted by Sahib View Post
    The tenant to occupy 5th and 8th floors. How to estimate sharing of HVAC, lights , elevator, fire protection charges, standby generator usage in the absence of submeter? Thanks.
    Percentage of total square footage? How are other tenants contributing?
    Code references based on 2005 NEC
    Larry B. Fine
    Master Electrician
    Electrical Contractor
    Richmond, VA

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    Yes, percentage of square footage. Maximum demand also that way? Thanks.

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    As long as usage profiles are the same then square foot percentage. An 8-5 law office use will be very different from a 24-hour data center so a load count and profile would then be better.
    BB+/BB=?

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    Quote Originally Posted by mivey View Post
    As long as usage profiles are the same then square foot percentage. An 8-5 law office use will be very different from a 24-hour data center so a load count and profile would then be better.
    So if the tenant maximum demand is not coincident, it is better to have a separate sub-meter. correct?

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    Quote Originally Posted by Sahib View Post
    So if the tenant maximum demand is not coincident, it is better to have a separate sub-meter. correct?
    I would and it would be an objective way of sharing out the total bill. If that would be permitted by the POCO.
    Si hoc legere scis nimium eruditionis habes.

  7. #7
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    Quote Originally Posted by Sahib View Post
    So if the tenant maximum demand is not coincident, it is better to have a separate sub-meter. correct?
    If you do not have a decent approximation of the demand coincidence factor then a separate meter would be needed if you want to assign demand costs with a reasonable degree of fairness.
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    Quote Originally Posted by mivey View Post
    If you do not have a decent approximation of the demand coincidence factor then a separate meter would be needed if you want to assign demand costs with a reasonable degree of fairness.
    Thanks.

  9. #9
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    Quote Originally Posted by mivey View Post
    If you do not have a decent approximation of the demand coincidence factor then a separate meter would be needed if you want to assign demand costs with a reasonable degree of fairness.
    If the sub-meter as suggested above is not provided but Maximum demand is shared on square foot basis, who will get undue advantage, owner or tenant ?

  10. #10
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    Quote Originally Posted by Sahib View Post
    If the sub-meter as suggested above is not provided but Maximum demand is shared on square foot basis, who will get undue advantage, owner or tenant ?
    The one with the highest demand per square foot.
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