Country-aggregated datasets v1.4

The country-aggregated datasets have been extended through to the end of 2024 with a version update to v1.4.

For both the wind and PV models, this includes minor improvements to the model setup, so these new datasets are not fully equivalent to the v1.3 datasets for the years 2019 and earlier. The existing wind and PV v1.3 datasets remain available on the downloads page.