Hello,
In the context of a project half offices and half factory New construction carried out on 3 floors, the last one will not be occupied, not heated and not ventilated. It will remain empty and unused. Would it be possible not to count this floor in the thermal calculation for the "Optimize Energy Performance" requirement? Otherwise, the calculation in relation to the basic model becomes disadvantageous for the client.
Also, does the base model depend on the location and activity?
Thank you in advance.
Have a nice day.
Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5868 thumbs up
June 11, 2021 - 3:27 pm
Everything included within the LEED project boundary must be included in the energy models. Not sure why including it is a disadvantage as this "space" would just be modeled identially. The baseline model is defined by ASHARE 90.1-2010 Appendix G.
Léanna Chérot
June 14, 2021 - 3:16 am
Hi,
Thank you for your answer. The problem is that the unheated surface represents 2/3 of the surface. It is therefore more difficult to reach a target of -40% of energy consumption if this surface is taken into account. Do you have any solution ?
Thank you in advance.
Have a nice day.
Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5868 thumbs up
June 14, 2021 - 3:01 pm
Is there any energy use in the unheated space? If so I see your issue. Not sure I have a solution, just a whole bunch of questions. I don't have enough information to suggest a solution.
Léanna Chérot
June 15, 2021 - 3:16 am
Hi Marcus,
Thank you. There is no energy planned on this floor. How can we not count it. If we count it, it will penalize us, especially since our project is an industrial project. ASHRAE want that the area be considered as an office.
If you need more information, don't hesitate to ask me questions to help us.
Thank you in advance.
Have a nice day.
Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5868 thumbs up
June 15, 2021 - 9:28 am
So no systems are being designed at present for this space? Why is that space being built if it will be empty and unused indefinitately? Is the vacant space going to be used for future expansion? If so what is planned for this space in the future?
Léanna Chérot
June 17, 2021 - 7:34 am
Hi Marcus,
They don't know yet how they will use this space for. It is built in anticipation of their increased activity. This building is includes a small office area and then the production plant on two floors. The third floor remains empty and without energy.
It represents 1/3 of the global space and it is desavantageous for them to considerate this space as the basic model. So, according to you, there is no way to not considerate it? They absolutely have to determine a function on that floor?
Thank you in advance.
Have a nice day.
Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5868 thumbs up
June 17, 2021 - 9:55 am
Sounds like it is mostly space for anticipated expansion of the production plant, so it would make sense to assume that.
According to the LEED requirements and 90.1 Appendix G you must include this space as occupied. See Table G3.1-1 Proposed (c). Technically you could probably get away with modeling it as office space.
Léanna Chérot
June 30, 2021 - 4:06 am
Hello,
There is finally a solution to our customer's problem. Indeed, he has to foresee what will be on this floor, i.e. everything that is lighting, HVAC performance coefficients, ventilation flow, water management, etc. This commitment allows us to differentiate the floor from the basic model and to provide for good practices.
Thank you.
Have a good day.
Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5868 thumbs up
June 30, 2021 - 8:59 am
Wonderful. Glad to hear maybe LEED played a small role in shifting some thinking. That was the intention of LEED from the start!