diff --git a/doc/release_notes.rst b/doc/release_notes.rst
index 54419681..8233a1f3 100644
--- a/doc/release_notes.rst
+++ b/doc/release_notes.rst
@@ -13,6 +13,8 @@ Upcoming Release
 
 * Fix: Value for ``co2base`` in ``config.yaml`` adjusted to 1.487e9 t CO2-eq (from 3.1e9 t CO2-eq). The new value represents emissions related to the electricity sector for EU+UK. The old value was ~2x too high and used when the emissions wildcard in ``{opts}`` was used.
 
+* Add option to include marginal costs of links representing fuel cells, electrolysis, and battery inverters 
+  [`#232 <https://github.com/PyPSA/pypsa-eur/pull/232>`_].
 
 PyPSA-Eur 0.3.0 (7th December 2020)
 ==================================
diff --git a/scripts/add_extra_components.py b/scripts/add_extra_components.py
index 6faced60..b957ca40 100644
--- a/scripts/add_extra_components.py
+++ b/scripts/add_extra_components.py
@@ -106,8 +106,7 @@ def attach_stores(n, costs):
                carrier='H2',
                e_nom_extendable=True,
                e_cyclic=True,
-               capital_cost=costs.at["hydrogen storage", "capital_cost"],
-               marginal_cost=costs.at["H2", "marginal_cost"])
+               capital_cost=costs.at["hydrogen storage", "capital_cost"])
 
         n.madd("Link", h2_buses_i + " Electrolysis",
                bus0=buses_i,