DOI: 10.16904/envidat.632
title: CH-POA300 -- Hourly Plane-of-Array Solar Irradiance at High Resolution for Switzerland

description: **CH-POA300** is a dataset of hourly solar irradiance maps projected onto tilted surfaces (analogous to monofacial solar panels). 
- **Spatial resolution:** 300 m 
- **Coverage:** Switzerland 
Two temporal extents are available, depending on the number of surface orientations (azimuth–tilt combinations): 
 1. Long-term 
- **Period:** 2004–2020 
- **Orientations:** 
 - Azimuth: 180° (South) 
 - Tilts: 0°, 35°, 60°, 90° 
 2. Typical year 
- **Period:** 2016 
- **Orientations:** 
 - Azimuths: 0° (North), 90° (East), 135°, 180° (South), 225°, 270° (West) 
 - Tilts: 0°, 3°, 8°, 15°, 25°, 35°, 45°, 60°, 80°, 90° 
 Notes
- Azimuth angles: 0° = North, 90° = East, 180° = South, 270° = West 
- Tilt angles: 0° = horizontal, 90° = vertical 
 Additional data
- Seasonal and annual statistics derived from the maps are included. 
- Methodology and quality assessment are documented in *CH-POA300-v-specs.pdf*.
description: Resource Title: Data 2004-2020
 Size: 858993459200 bytes
 Format: No Info
 URL: https://envicloud.wsl.ch/#/?bucket=https%3A%2F%2Fos.zhdk.cloud.switch.ch%2FCHPOA300/&prefix=2004-2020
 Description:
description: Resource Title: Data 2016
 Size: 751619276800 bytes
 Format: No Info
 URL: https://envicloud.wsl.ch/#/?bucket=https%3A%2F%2Fos.zhdk.cloud.switch.ch%2FCHPOA300%2F&prefix=2016
 Description:
description: Resource Title: CH-POA300-v2-specs
 Size: 11473219 bytes
 Format: application/pdf
 URL: https://www.envidat.ch/dataset/0ec532fd-a319-4569-a181-ab391104b47f/resource/c184fb33-6751-47cd-a936-2f04de24c760/download/ch-poa300-v2-specs.pdf
 Description: This document provides an in-depth description of the CH-POA300 dataset. It includes methodology and validation details.
description: Resource Title: CH-POA300-v2-statistics
 Size: 1889349528 bytes
 Format: application/zip
 URL: https://www.envidat.ch/dataset/0ec532fd-a319-4569-a181-ab391104b47f/resource/ed1238d2-b8c0-42f1-9b65-b837ac2dd259/download/stats.zip
 Description: Contains seasonal and annual statistics (mean and sum) derived from the CH-POA300 dataset.
File naming conventions:
yyyy_agg_period_hourly_stat.nc : statistic for aggregation period in year 
all_agg_period_stat_mean.nc : statistic for aggregation period computed over the entire dataset (all years)
Definitions:
yyyy = year (2004–2020)
agg_period = winter, summer, annual
stat = mean, sum
description: Resource Title: CH-POA300_v1_statistics
 Size: 1445061901 bytes
 Format: application/zip
 URL: https://www.envidat.ch/dataset/0ec532fd-a319-4569-a181-ab391104b47f/resource/ea36025c-c855-488d-857d-f658bace53e2/download/chpoa300_statistics.zip
 Description: Contains seasonal and annual statistics (mean, sum) of the CH-POA300 dataset.

- "yyyy_agg_period_hourly_stat.nc": statistic for the period of the year 
- "all_agg_period_stat_mean.nc": statistic for the period reduced on the entire dataset (all years).
\
yyyy: [2004, 2020]
agg_period: [winter, summer, annual]
stat: [mean, sum]
description: Resource Title: CH-POA300_v1_specs
 Size: 11472383 bytes
 Format: application/pdf
 URL: https://www.envidat.ch/dataset/0ec532fd-a319-4569-a181-ab391104b47f/resource/7146fc4a-df12-44a8-923f-69476b147a55/download/chpoa300_specs_v1.pdf
 Description: This document provides an in-depth description of the CH-POA300 dataset. It includes methodology and validation details.