Hello,
We are modelling for LEED C&S 2009. The project has 26 floor type of mixed-use offices. My question is about the Minimum Energy Perfomance credit form (EAp2). We're going to use elevators with regenerative braking and we don't know how to describe this on the form and how to prove the elevator's efficiency during certification process.
1. Do we model the savings acquired using elevators with regenarative braking in section 1.7 - Exceptional Calculation Measure Summary? If so, is it necessary to do some kind of benchmarking that demonstrates this technology hasn't been used in the past 5 years on similar buildings, in the same location?
2. How can we prove the efficiency of elevators in use regarding to elevators without regenative braking? Do we need to do some kind of measurement in the place or manufacturer datasheets is enough? A simulation based on VDI 4707 standard, provided by the manufacturer, can prove it?
sompoche sirichote
18 thumbs up
March 20, 2018 - 10:28 am
We have a same question but for V4. Awaiting for suggestion as well.
Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5907 thumbs up
March 21, 2018 - 2:44 pm
Sorry looks like I missed this one. I think the same advice applies to v4.
1. Yes you need to do an exceptional calculation and justify the baseline. Using similar building designs in that location is one way to justify the baseline.
2. Most people typically use the calculators that you can find on the elevator manufacturer's web site to demonstrate savings. There are guidelines you can find online for what type of elevator is typically used for the height of your building. No measurement required. I don't know this standard but often the manufacturer can help you determine the savings.