Forum discussion
EBOM-2009 EAp2: Minimum Energy Efficiency Performance
I’m working on a vehicle repair shop project that cannot get an Energy Star rating. The building is 10,000sqft and has 10,000sqft of parking with associated lighting. Using the calculator Option C (since this is a ‘service’ facility), there is an exception to not include the parking/garage space.
How does one get an accurate ‘Approximate percentile points above national average’ that includes both the facility and parking area?
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Our building includes a large laboratory space. Can our project benchmark under the Labs21 program?
How long is an Energy Star label valid to use with a streamlined approach for Case 1?
When is it possible to exclude up to 10% of the building from EAp2?
How do I account for computers with multiple monitors on Portfolio Manager?
Jenny Carney
Vice PresidentWSP
LEEDuser Expert
657 thumbs up
April 16, 2010 - 3:34 pm
From what I know, the CBECS database (which forms the basis of the Case 2 Calculator (Option BC Calculator for v2008), includes exterior energy use.
However, since this project needs to follow Case 2, Option 2 (Option C in v2008), you could choose to use the historic data approach. This allows you to compare you current energy performance to a baseline from the same building's historic performance. This will neutralize the effect of the parking size (assuming it hasn't increased or decreased).
You can also choose to do the benchmarking that uses historic data + comparable buildings to set the baseline. In this case, you'd either choose comparable buildings that have the same function and a similar ratio of building to parking, or could normalize the data from the comparable buildings accordingly. Good luck.
Prudence Ferreira
PrincipalIntegral Impact
88 thumbs up
May 16, 2011 - 5:34 pm
Jenny,
What do you do if you have historic usage, but for 2 buildings combined? We are trying to certify two buildings on the same district heat, but there is only one meter between the two. We know that we need to install a meter so that we can differentiate the two before the performance period starts, but then how do we calculate against our historical baseline?