# Solar envelope not working, giving flat surface

**URL:** <https://discourse.ladybug.tools/t/solar-envelope-not-working-giving-flat-surface/24523>\
**Category:** ladybug-tools\
**Tags:** solarenvelope\
**Created:** [April 5, 2024, 10:12am UTC](https://discourse.ladybug.tools/t/solar-envelope-not-working-giving-flat-surface/24523 "2024-04-05T10:12:26Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![nmaccreanor](https://discourse.ladybug.tools/letter_avatar_proxy/v4/letter/n/ebca7d/32.png) [@nmaccreanor](https://discourse.ladybug.tools/u/nmaccreanor)\
**Post date:** [April 5, 2024, 10:12am UTC](https://discourse.ladybug.tools/t/solar-envelope-not-working-giving-flat-surface/24523/1 "2024-04-05T10:12:27Z")

</div>

[solarEnvelope study.gh](https://discourse.ladybug.tools/uploads/short-url/fNKECpSAaf2Rq9SfXKd2RdoUl4a.gh) (68.3 KB)  
Hi, I cannot find the mistake but when entering all my information and surfaces the outcome of the solar envelope study is a flat surface. Can someone help me to see what i am doing wrong? Thank you!