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We are proposing to metering a new building with a single controller. The controller has the capability to monitor each individual end use (lighting, plug loads, HVAC, water, gas, etc.). Can we meter everything on a distribution board except one specific

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NC-v4 EAc3:Advanced energy metering

Tenancy areas with low relevance

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Ricardo Sá
Director of Sustainability
Edifícios Saudáveis Consultores (503 910 767)
LEEDuser Basic Member
79 thumbs up

Dear All

 

In the context of a new airport project pursuing LEED certification, a chilled water plant will distribute chilled water to the whole building, including some retail tenancy areas (to be fitted out by the tenant). The embedded electricity associated with space cooling of these retail tenancy areas accounts for much less than 10% of the total annual consumption of the building.

 

The question is: is it mandatory to install enthalpy meters in each of these tenancy retail areas? Or they can be exempted due to its low relevance (<< 10% of the total annual consumption of the building)?

 

Thanks in advance,

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Marcus Sheffer
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
4454 thumbs up

Tue, 09/22/2020 - 18:28

Metering is by energy end use, not by space type or area, so since space cooling is greater than 10% the space cooling must all be metered. Is it a major problem to do so?

Mon, 11/09/2020 - 22:18

Marcus, What exactly is to be metered?  Is it the electricy used by chillers (on the building scale)?  Is it indivudual BTU meters at each individual tenacy?  Is it HVAC as a whole (chillers, pumps, etc.)?   Thank you,
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Marcus Sheffer
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
4454 thumbs up

Fri, 11/13/2020 - 15:16

You would typically meter the building by energy end use. Energy end uses tend to be the individual systems reflected in the energy modeling results like lighting, heating, cooling, pumps, fans, service hot water, plug loads, elevator, etc. So exactly what you meter depends on the systems within your project.

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