Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
The Add Rooftop PV measure was meant for early design so was pretty simple. It offsets copies of roof services vertically, maintaining their existing angle) and turns them into shading surfaces. If the fraction of surface used as PV is less than 1, then a shading schedule is added to let the same fraction of the light through. So if PV fraction is .8 then .2 of the light will come through the shading surface.
You should be able to run Add Rooftop PV and Add Simple PV measures, but keep in mind the Add Simple PV measures pre-dates OpenStudio PV support so it is an EnergyPlus measure. You can now also add PV to building and shading surfaces directly in the SketchUp plugin as shown in this post.
It would be nice to eventually update the rooftop PV measure, or have a new one, to automatically create rows of tilted PV strips vs. a flat PV, but just wasn't needed or budgeted for in our first pass.
| | 2 | No.2 Revision |
The Add Rooftop PV measure was meant for early design so was pretty simple. It offsets copies of roof services vertically, maintaining surfaces vertically (maintaining their existing angle) and turns them into shading surfaces. If the fraction of surface used as PV is less than 1, then a shading schedule is added to let the same inverse fraction of the light through. So if PV fraction is .8 then .2 of the light will come through the shading surface.
You should be able to run Add Rooftop PV and Add Simple PV measures, but keep in mind the Add Simple PV measures pre-dates OpenStudio PV support so it is an EnergyPlus measure. You can now also add PV to building and shading surfaces directly in the SketchUp plugin as shown in this post.
It would be nice to eventually update the rooftop PV measure, or have a new one, to automatically create rows of tilted PV strips vs. a flat PV, but just wasn't needed or budgeted for in our first pass.
