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diff --git a/doc/img/elec_s_X.png b/doc/img/elec_s_X.png
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diff --git a/doc/release_notes.rst b/doc/release_notes.rst
index e70bc8ed..ec8009d8 100644
--- a/doc/release_notes.rst
+++ b/doc/release_notes.rst
@@ -7,9 +7,75 @@
 Release Notes
 ##########################################
 
+Synchronisation Release - Ukraine and Moldova (17th March 2022)
+===============================================================
 
-Upcoming Release
-================
+On March 16, 2022, the transmission networks of Ukraine and Moldova have
+successfully been `synchronised with the continental European grid <https://www.entsoe.eu/news/2022/03/16/continental-europe-successful-synchronisation-with-ukraine-and-moldova-power-systems/>`_. We have taken
+this as an opportunity to add the power systems of Ukraine and Moldova to
+PyPSA-Eur. This includes:
+
+.. image:: img/synchronisation.png
+  :width: 500
+
+* the transmission network topology from the `ENTSO-E interactive map <https://www.entsoe.eu/data/map/>`_.
+
+* existing power plants (incl. nuclear, coal, gas and hydro) from the `powerplantmatching <https://github.com/fresna/powerplantmatching>`_ tool
+
+* country-level load time series from ENTSO-E through the `OPSD platform <https://data.open-power-system-data.org/time_series/2020-10-06>`_, which are then distributed heuristically to substations by GDP and population density.
+
+* wind and solar profiles based on ERA5 and SARAH-2 weather data
+
+* hydro profiles based on historical `EIA generation data <https://www.eia.gov/international/data/world>`_
+
+* a simplified calculation of wind and solar potentials based on the `Copernicus Land Cover dataset <https://land.copernicus.eu/global/products/lc>`_.
+
+* electrical characteristics of 750 kV transmission lines
+
+The Crimean power system is currently disconnected from the main Ukrainian grid and, hence, not included.
+
+This release is not on the ``master`` branch. It can be used with
+
+.. code-block:: bash
+
+  git clone https://github.com/pypsa/pypsa-eur
+  git checkout synchronisation-release
+
+
+On March 16, 2022, the transmission networks of Ukraine and Moldova have
+successfully been `synchronised with the continental European grid <https://www.entsoe.eu/news/2022/03/16/continental-europe-successful-synchronisation-with-ukraine-and-moldova-power-systems/>`_. We have taken
+this as an opportunity to add the power systems of Ukraine and Moldova to
+PyPSA-Eur. This includes:
+
+.. image:: img/synchronisation.png
+  :width: 500
+
+* the transmission network topology from the `ENTSO-E interactive map <https://www.entsoe.eu/data/map/>`_.
+
+* existing power plants (incl. nuclear, coal, gas and hydro) from the `powerplantmatching <https://github.com/fresna/powerplantmatching>`_ tool
+
+* country-level load time series from ENTSO-E through the `OPSD platform <https://data.open-power-system-data.org/time_series/2020-10-06>`_, which are then distributed heuristically to substations by GDP and population density.
+
+* wind and solar profiles based on ERA5 and SARAH-2 weather data
+
+* hydro profiles based on historical `EIA generation data <https://www.eia.gov/international/data/world>`_
+
+* a simplified calculation of wind and solar potentials based on the `Copernicus Land Cover dataset <https://land.copernicus.eu/global/products/lc>`_.
+
+* electrical characteristics of 750 kV transmission lines
+
+The Crimean power system is currently disconnected from the main Ukrainian grid and, hence, not included.
+
+This release is not on the ``master`` branch. It can be used with
+
+.. code-block:: bash
+
+  git clone https://github.com/pypsa/pypsa-eur
+  git checkout synchronisation-release
+
+
+Upcoming Regular Release
+========================
 
 * Add an efficiency factor of 88.55% to offshore wind capacity factors
   as a proxy for wake losses. More rigorous modelling is `planned <https://github.com/PyPSA/pypsa-eur/issues/153>`_
diff --git a/envs/environment.yaml b/envs/environment.yaml
index 06eac040..7cb6b519 100644
--- a/envs/environment.yaml
+++ b/envs/environment.yaml
@@ -13,6 +13,8 @@ dependencies:
   - pypsa>=0.19.2
   - atlite>=0.2.5
   - dask
+  - jupyter
+  - nbconvert
 
   # Dependencies of the workflow itself
   - xlrd
diff --git a/scripts/build_load_data.py b/scripts/build_load_data.py
index 9049ee30..052660d2 100755
--- a/scripts/build_load_data.py
+++ b/scripts/build_load_data.py
@@ -212,7 +212,9 @@ if __name__ == "__main__":
 
     # attach load of UA (best data only for entsoe transparency)
     load_ua = load_timeseries(snakemake.input[0], '2018', ['UA'], False)
-    load_ua.index = snapshots # hack indices (currently, UA is manually set to 2018)
+    snapshot_year = str(snapshots.year.unique().item())
+    time_diff = pd.Timestamp('2018') - pd.Timestamp(snapshot_year)
+    load_ua.index -= time_diff # hack indices (currently, UA is manually set to 2018)
     load['UA'] = load_ua
     # attach load of MD (no time-series available, use 2020-totals and distribute according to UA):
     # https://www.iea.org/data-and-statistics/data-browser/?country=MOLDOVA&fuel=Energy%20consumption&indicator=TotElecCons