See all forum discussions about NC-v4 EAp2
 Subscribe to new posts about NC-v4 EAp2 Post a new question aboutNC-v4 EAp2
See LEEDuser’s guidance on NC-v4 EAp2»
FAQs about EAp2 :

Do the required savings for this prerequisite (and credit) need to come only from building energy, or also process loads?

Our project doesn't have enough energy savings to earn the prerequisite. Can we get there by incorporating onsite renewables?

Our proposed design has insulation R-values that are below those prescribed by ASHRAE 90.1-2010. Can we still meet the prerequisite?

View answers »

Forum discussion

NC-v4 EAp2:Minimum energy performance

Energy Model for Ice Rink

Default Avatar
Shenhao Li
Atkins
LEEDuser Basic Member
7 thumbs up

Hello, We have a speed skating oval project. Should the energy used for ice rink modeled as process load? We think this will be the major energy consumption. Can we consider the energy saving of this load? If it can be, how to model the baseline chiller? Thanks!

0
Post a reply

You rely on LEEDuser. Can we rely on you?

LEEDuser is supported by our premium members, not by advertisers.

Go premium for $15.95  »

Profile picture for user sheffer
Marcus Sheffer
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
4454 thumbs up

Wed, 07/05/2017 - 16:54

Yes it is a process load. You can claim savings through an exceptional calculation. Under this method you must justify the baseline as standard industry practice for an new facility in your area. If the chiller used is the same type as can be used for space conditioning you can use the efficiency in Table 6.8.1 for the baseline.
Default Avatar
Shenhao Li
Atkins
LEEDuser Basic Member
7 thumbs up

Thu, 07/06/2017 - 02:53

Thank you Marcus! The window wall ratio also need to adjust to 40% maximum? And the energy used for ice rink will be affected by building envelope which are not same for baseline and proposed case. So this process load won't be the same for two models.
Profile picture for user sheffer
Marcus Sheffer
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
4454 thumbs up

Thu, 07/06/2017 - 13:22

Yes. The process load must be the same but that does not mean that the energy use must be the same. In most cases it is the same but in some situations other interactive strategies produce savings and that is OK. So you model it identically and make sure to thoroughly explain any savings to the reviewer.

Add new comment

To post a comment, you need to register for a LEEDuser Basic membership (free) or login to your existing profile.