# Solar capacity factor calculation **URL:** https://community.tempest.earth/t/solar-capacity-factor-calculation/9679 **Category:** Feature Requests **Created:** [October 4, 2020, 10:30pm UTC](https://community.tempest.earth/t/solar-capacity-factor-calculation/9679 "2020-10-04T22:30:38Z") **Posts on this page:** 1 **Showing post:** 2
### Author: ![iladyman](https://sea2.discourse-cdn.com/flex020/user_avatar/community.tempest.earth/iladyman/32/2305_2.png) [@iladyman](https://community.tempest.earth/u/iladyman) #### Post date: [October 5, 2020, 12:00pm UTC](https://community.tempest.earth/t/solar-capacity-factor-calculation/9679/2 "2020-10-05T12:00:16Z")
You have not voted for your feature request. Your request suggests using the Tempest solar panels rather than the actual solar sensor. The Tempest solar panels are not mounted at an optimal angle. There are some discussions in this forum regarding using the Tempest for these types of calculations such as: > [@Peak solar hours, for solar power siting studies](https://community.tempest.earth/t/peak-solar-hours-for-solar-power-siting-studies/3226): > > There’s a commonly used metric in solar power plant studies called variously Peak Solar Hours, or Peak Sun Hours. Essentially it’s how many watt-hours per day a one-watt solar panel will produce, so it’s an integration of Watts Per Square Meter over the day. It is typically measured with a pyrometer, which can cost as much as a complete Weatherflow station. Is there a way to get a rough approximation of this metric from my WeatherFlow station? Either (ideally) from stored cloud data, or I cou… cheers Ian 🙂 --- _[View the full topic](https://community.tempest.earth/t/solar-capacity-factor-calculation/9679)._