# Modelling BIPV and calculating Energy Consumption and Thermal Comfort

**URL:** <https://discourse.ladybug.tools/t/modelling-bipv-and-calculating-energy-consumption-and-thermal-comfort/21699>\
**Category:** ladybug-tools\
**Tags:** energy, honeybee, pv, thermal-comfort, building-program\
**Created:** [May 9, 2023, 11:46am UTC](https://discourse.ladybug.tools/t/modelling-bipv-and-calculating-energy-consumption-and-thermal-comfort/21699 "2023-05-09T11:46:05Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![djordje](https://discourse.ladybug.tools/user_avatar/discourse.ladybug.tools/djordje/32/9_2.png) [@djordje](https://discourse.ladybug.tools/u/djordje)\
**Post date:** [May 16, 2023, 8:48am UTC](https://discourse.ladybug.tools/t/modelling-bipv-and-calculating-energy-consumption-and-thermal-comfort/21699/2 "2023-05-16T08:48:52Z")

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Hi @pokkisianturi ,  
I think about the energy consumption, it was discussed in this topic:

> [@How to integrate PV on a building model to calculate energy use?](https://discourse.ladybug.tools/t/how-to-integrate-pv-on-a-building-model-to-calculate-energy-use/21268):
>
> I’m working on a project to calculate the energy use intensity (EUI) of a building using BIPV as a window. The problem here is that when I run the energy simulation, the EUI of the building didn’t change whether I use a normal glass window or BIPV. Can someone help me since i am a begineer? Thanks in advance!

You have to somehow use the `ACenergyPerHour` output of the `Photovoltaics surface` results and further integrate them with for example `EUI` component from the upper topic. But I can’t help you with that, I never used the `EUI` component.  
As for the custom shape, just use those surfaces you would like to populate with BIPV panels as `_PVsurface` input of the `Photovoltaics surface` component.  
Sorry for the late reply.

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