See all forum discussions about CS-2009 EAp2
 Subscribe to new posts about CS-2009 EAp2 Post a new question aboutCS-2009 EAp2
See LEEDuser’s guidance on CS-2009 EAp2»
FAQs about EAp2 :

For a project outside the U.S., how do I determine the Target Finder score?

Do hotel rooms need automatic light shut-off control?

How commonly are the 90.1 mandatory compliance forms submitted as part of EAp2/EAc1?

The Section 9 space-by-space method does not include residential space types. What should I use?

Can the Passive House Planning Package (PHPP) be used to energy model for LEED?

Is it acceptable to model a split-type AC with inverter technology compressor as a heat pump, like modeling VRF?

Can the Trace 700 'LEED Energy Performance Summary Report' by uploaded to LEED Online in lieu of the Section 1.4 tables spreadsheet?

A portion of our building envelope is historic. Can we exclude it from our model?

Which baseline HVAC system do I use if my building has no heating or air conditioning?

For an existing building, do I need to rotate the model?

Our project has a diesel backup generator. Should we include it in our energy model?

Our project has a large process load—75%. Despite our efforts to make an efficient HVAC design, the cost savings are minimal. What can we do to earn this prerequisite and be eligible for LEED certification? Is there any flexibility in how we model the p

Can SHGC be higher in the proposed than in the baseline model?

Our process load is higher than 25%. Do we have to justify that?

Do I need to justify the electrical and fuel rates I am using in my model?

Our local code references ASHRAE 90.1-2010. Should I use that for my documentation, or 90.1-2007?

Can I claim exterior lighting savings for canopy lighting even though a baseline model cannot include shading elements?

The project is built on a site with existing exterior lighting installed. How should this be accounted for?

Can mezzanines open to floors below be excluded from the energy model?

How do I provide a zip code for an international location?

View answers »

Forum discussion

CS-2009 EAp2:Minimum Energy Performance

Process Loads

Hi, I know this has been discused before, but I still can´t make it. The thing is that I have a C&S building to model. I have assumed 35 W/m2 of other loads on all tennant spaces, which the simulation program takes as "Process Loads", other Process Loads I set as are Elevators and pumps. The building has also Parking exhaust and injection fans, and exhaust fans for bathrooms, which are placed on the C&S portion of the building. With these loads taken as process loads, the percentage of process loads on the baseline is just 1% of the total cost, so it does not comply with what is asked. I have realized that C&S lighting, interior and exterior, is very high for both the project and the baseline buildings, and I think this is the reason why this porcentaje is so low. The question is: Would it be ok to assume this C&S lighting as "Process Loads"?, In this case, I have to say that "Process Loads" rises up to 99% of total cost. I will appreciate any comment, Thank you

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

Thu, 01/10/2013 - 15:37

There is no requirement for a minimum process load. If you are under 25% justify why that is the case. The 35 W/m2 is way too high for process loads if this is a typical office and will be questioned. Bathroom exhaust is not process and lighting is certainly not process. Not sure why your lighting is such a high percentage of total usage. Something sounds wrong in the modeling results. Make sure that you are modeling the entire building as the savings are based on the entire building, not just the CS portion. So the process % is based on the whole building not just the CS portion as well.

Wed, 01/16/2013 - 00:11

Thank you Marcus, lighting was wrong, this is a good example why you have to be clear about "units" in all you jobs, With the corresponding lighting power everything is ok, Thnak you

Add new comment

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