[Equest-users] Solar panels

[Peter Hillermann]

Alan,

 

To be honest there really is no good way to model the solar panels. PV watts
is really good because it calculates panels all over the state using
averages. It also depends on what system you are using. If you use a roof
mount system that has a specific tilt you get a certain efficiency. If you
use a system has trackers it becomes more efficient but the price might go
up. Different states have different tilt angles to make their panels more
efficient with the better degree of tilt. The thing I would do if you wanted
to put it in eQuest is use PV watts calculator and apply it as a direct load
that gives electricity to the building.

 

PS: check to see what inverter you are using because different inverters
have different efficiencies.

 

PETER HILLERMANN

 

peterh at westallarchitects.com

 

westall

architects

3404 pierce drive

chamblee, georgia 30341

 

o 770.458.4113

f  770.458.5352

c 678.898.2936

 

westallarchitects.com

Description: e-signatureDescription: USGBC-Logo

 

From: equest-users-bounces at lists.onebuilding.org
[mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Alan
Crittendon
Sent: Monday, November 08, 2010 8:43 AM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] Solar panels

 

I need to have about 5000ft of roof space dedicated to solar panels on a
41000ft roof.  How can I model 5000ft of roof to be 100% reflective?

 

Alan Crittendon, PE, LEED AP
DW Collier Engineering, Inc.

 

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