Hi,
Under Performance Output1 TAB of this form, we cannot get the "Total Energy Cost" percentage. Do we need to complete it and/or provide information for the following:
1) Utility Rate Name and Utility Structure (where can we find it?)
2) Interior and Exterior Lighting - Consumption (Kwh). Where can we get this, are they connected to "Schedules" TAB?
3) the points that we could get from this from depends on the % result, right?
Appreciate any assistance or information that we could resolve on this form. This is our first time to fill-up this form.
Regards,
Susan
Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5912 thumbs up
June 26, 2018 - 2:31 pm
1. You will need to enter the virtual rates to get the form to function. I had previously answered where you find the utility and rate information.
2. This should be generated by your energy model. T-24 projects do not have to generate this information but LEED requires it. This is one of the differences your modeler needs to understand when doing a LEED project versus a T-24 compliance model.
3. Yes the points depend on the percent savings.
susan eguia
LEED Coordinator/Construction Administrator/Business DevelopmentBuilding Solutions Group, Inc.
59 thumbs up
June 27, 2018 - 1:39 pm
Hi Marcus,
thanks for response. Follow-up question please:
1. What do you mean by virtual rates? Are you referring to Table: Virtual rate (average cost per unit energy)? I can see "Restore Virtual Rate" button. If so, these are protected sheet. where can i enter the values?
Also, i input SCE for Electricity and SCal Gas Co. for natural gas. What is District cooling, is that for water? Then, i selected "default EIA rates" in lieu of local utility rates.
2. When you say Energy Modeler, are you referring to the one whom prepares the T-24 report?
Yes, we only have T-24 input resources for this form.
I've noticed by entering cost values under table: Performance rating energy consumption and cost by fuel type for both baseline and proposed. It generates total energy cost %. So, that cost value is my dilemma :)
thanks,
Susan
Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5912 thumbs up
June 27, 2018 - 1:57 pm
1. The virtual rate is the cost/unit of energy generated by the modeling software. If you use a flat rate (fixed cost/unit of energy) then that will be the same as the virtual rate. If you enter a rate structure in the model then the model will generate the virtual rate which can be different in different models. I don't know about your form related questions. District cooling would be provided by a different utility or a campus central plant. It is not for water. You can use the EIA rates instead of the local utility rates.
2. Energy modeler is the person who did the modeling to generate the T-24 reports.
Yes T-24 is not based on cost but LEED is. It sounds like you are using a T-24 report that was generated to demonstrate T-24 compliance but has not been generated for LEED compliance. They are related but different. A T-24 report alone will not include everything you need for LEED.
susan eguia
LEED Coordinator/Construction Administrator/Business DevelopmentBuilding Solutions Group, Inc.
59 thumbs up
July 12, 2018 - 7:57 pm
Hi,
I have the following questions:
1) Under Performance Output tab, do we need to respond for the "red flags" issues?
2) How can we get the consumption (Kwh) for interior & exterior lighting?
3) The red flag says "Pump consumption is reflected in the baseline output", but we did not input any values.
4) for the Fan Power input, do we need to use baseline fan power calculator?
5) There are some comments which are not actually input from the form eg. PV, is the form not properly function?
Pls advise.
thanks again.
Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5912 thumbs up
July 13, 2018 - 8:57 am
1. yes
2. Model it - this is one of those items that is not required by Title 24 but is required for LEED.
3. Some of these red flags do not accurately reflect the issue raised. If you think it does not apply then reply NA.
4. The fan power calculation is embedded within the air-side HVAC tab.
5. yes there are issues with this part of the calculator.
susan eguia
LEED Coordinator/Construction Administrator/Business DevelopmentBuilding Solutions Group, Inc.
59 thumbs up
July 13, 2018 - 5:41 pm
Hi Marcus,
2. what do you mean Model it? if we don't have info on consumption or usage for the project?
3. So what is the purpose of fan power calcs?
5. How can we get a better result? When we're done, the input was completed (eg. Total Exterior Lighting Demand & Total Design Exterior Lighting Demand under Quality Assurance checks and saved it. But if we open it again, these items are gone and has an "error" message.
6. Is there a completed calculations like this from previous project that we could use as reference and guideline?
thanks
Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5912 thumbs up
July 16, 2018 - 9:56 am
2. Exterior lighting is a mandatory provision so it must be included in the modeling results. If you don't have this information you must get it. Then use the model to calculate the energy use.
3. I assume you mean the separate spreadsheet. It is just a stand alone tool that does not require you to use the whole MEPC to do these calcs.
5. Got me.
6. I am not aware of one that is public.