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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

Process End Use - Manufacturing

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Dave Hubka
Practice Leader - Sustainability
EUA
LEEDuser Expert
510 thumbs up

Hello,

We have a manufacturing project where 70%+ of the energy load is for the widget makers. None of the typical regulated end uses (e.g. space heating, interior lighting, domestic hot water, etc.) constitute 10% or more of the total annual energy consumption.

Would the total energy consumed by the widget makers be considered 'end use'?

thanks!

 

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

Fri, 09/07/2018 - 15:37

I suppose that if you lumped it all together under something like "industrial process" in the model you could view it that way and technically meet the credit requirements. If this were my project I would question if that was really useful information to the owner. The intent of the credit is to install metering that will provide useful information to the owner to help them manage their energy use during operations. I suppose a determination of energy use per widget may be useful but many manufacturers would just look at total energy use of the facility per widget since that represents the total energy cost. Perhaps it would be more useful to break down the components of the manufacturing process and submeter those? Hard for me to say.
Profile picture for user Dave.Hubka_2
Dave Hubka
Practice Leader - Sustainability
EUA
LEEDuser Expert
510 thumbs up

Fri, 09/07/2018 - 17:40

thanks for the response Marcus, yeah you are spot on. A lump sum energy use breakout for all there process is really not that useful to the owner.  On this project, there is quite a comprehensive energy management system that will be installed so that the owner can see trends and best manage the energy. They will be tracking energy use per widget, and energy use per raw material as well as a number of other key performance indicators (kpi).  I believe we meet the intent, the heartburn seems to be collecting hourly data from several hundred submeters and storing for 36 months when the owner does not necessarily need this granularity.  So we may install a process level energy meter to collect hourly data and store for 36 months - to tick the LEED box - and also have several hundred submeters that log data to meet the owner's needs.   best,   Dave

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