Release notes

Recent updates of Solargis database and online applications

We are constantly working to improve Solargis. Below are details of recent updates to Solargis model and services.

If you have a feature request, send us your feedback via our contact form.

08 Jan 2019

Solargis model v2.1.26 release

- IFS forecast was updated with following changes
- Forecast update frequency is 6 hours (before it was  12 hours)
- Temporal resolution for first 48 hours was increased to 1 hour, hour 48-84 remains in 3 hourly resolution
- New region covering east Brazil

03 Jan 2019

Solargis model v2.1.25 release

- Gapfill of time series and TMY meteo data bug fix

16 Dec 2018

Solargis model v2.1.24 release

- De-biasing correction for TEMP data from CFSv2 model (applicable for period 2011 onward) was improved.
- Change in temperature values for period 2011 onward is mostly within ±0.5°C. The change in long-term average is even smaller. For details of TEMP post-processing method see

16 Dec 2018

Uncertainty values in TMY CSV file header

- CSV file header for TMY Pxx (75,90,95,99) data has been extended to include uncertainty values. The values include GHI/DNI model uncertainty, uncertainty because of inter-annual variability, and combined uncertainty. All uncertainty values are reported at P90 confidence (1.282 * SD).
- It is planned to include the uncertainty values also in PDF report issued along with the CSV files.

02 Dec 2018

Solargis model v2.1.23 release

- Improved post-processing of night-time air temperature data from CFSv2 and MERRA-2 model outputs. Updated lapse rate used for spatial downscaling of TEMP data to 1km resolution.
- This change affects Solargis time series: historical, recent, nowcast and forecast.
- All regions are affected but most significant corrections are seen in the coasts of California, Namibia and Chile, western Canada and Yakutia (Russia).

16 Nov 2018

Solargis model v2.1.22 release

- Time series data from GOES-West satellite region, covering Northwest USA, West Canada and Hawaii were re-analyzed. The update affects period between January and October 2018.