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CS-2009 EAc5.2:Measurement and Verification—Tenant Submetering

Plan development

For this purpose we would like to know if: - In order to comply with requirements, can we develop a plan similar to the one use for the core & base building (calibrated simulation)? It will be a plan with the same structure, specifying what type of equipment needs to be installed by tenants, suggestions for metering points location, type of end use being measured, frecuency of inspection and consumption readings/recording. Since it is unknown yet the future tenant, it will be like a template where tenants will have to input their own information once know. For example: in the chapter about the calibrated simulation instead of including an actual simulation we would input requirements for the simulations and what needs to be included in it. - Is it mandatory to create a sales agreement to enforce all tenants to comply with EAc3 for LEED-CI? Thank you

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

Thu, 01/09/2014 - 16:52

EAc5.2 is a different focus that EAc5.1. The plans are only vaguely similar. 5.1 is about verifying savings predictions. 5.2 is about installing the infrastructure that would enable the tenant to meter their energy use. The metering infrastructure must be capable of allowing the tenants to earn CI EAc3 but the tenants are not required to install the metering unless they are a CI project wishing to earn CI EAc3. There are no simulations required for this credit.

Thu, 01/09/2014 - 17:11

Thank you for the quick response Marcus. We are a bit lost with this credit, just to confirm what we think is right: - There has to be infrastructure that supplies consumption information to the building bms, that is the owner need to know how much energy tenant number 1, 2, 3 etcetera is consuming. - In the particular case that only preparations are left then the tenant MUST be contractually obligated (sales/leasing agreement) to provide for the submeters. This is really typical in our area since a regular LEED-CS project is speculative office space and no one knows how many tenants there will be by the LEED design phase review. - Only electricity consumption must be measured, that is one single consumption will be enough to comply with credit requirements We are still unsure how the metering infrastructure will allow tenants to comply with CI EAc3.
Profile picture for user sheffer
Marcus Sheffer
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
4454 thumbs up

Thu, 01/09/2014 - 18:39

- The infrastructure does not have to be tied to a BMS but it could be. For example, the plan could be to have utility meters on each tenant space. - No. The tenants are not required to install the metering under CS. - Yes just electricity with a single meter. If a future tenant wishes to pusue CI, the basic infrastructure installed in the CS building must enable them to do so. This is primarily an electrical wiring issue and having a plan in place for how the spaces will be metered.

Thu, 01/09/2014 - 19:45

Thank you so much, it was really clear!!!!!

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