diff --git a/ipynb/energy/EnergyModel_ClusterEnergy.ipynb b/ipynb/energy/EnergyModel_ClusterEnergy.ipynb
index 9fdf82712aaeaf2abf866caaa0e75e2ece6c8abe..bece7fe95aac167cd1f71dae6fe4ff7a2042358b 100644
--- a/ipynb/energy/EnergyModel_ClusterEnergy.ipynb
+++ b/ipynb/energy/EnergyModel_ClusterEnergy.ipynb
@@ -23,6 +23,15 @@
     "Hardware monitors measure energy in microJoule [$\\mu$J]."
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "### Note: this requires `scipy`\n",
+    "\n",
+    "You can install it with `sudo -H pip install scipy` or similar."
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": 1,
diff --git a/ipynb/energy/EnergyModel_SystemEnergy.ipynb b/ipynb/energy/EnergyModel_SystemEnergy.ipynb
index 6c242d70ea3fb7c5d4c4d7807232d525e8effe10..335f907fdb5d8b1bb7497971af69b5a3e11427b3 100644
--- a/ipynb/energy/EnergyModel_SystemEnergy.ipynb
+++ b/ipynb/energy/EnergyModel_SystemEnergy.ipynb
@@ -25,6 +25,15 @@
     "measurements. This will be achieved by exploiting the cgroup `freezer` controller."
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "### Note: this requires `scipy`\n",
+    "\n",
+    "You can install it with `sudo -H pip install scipy` or similar."
+   ]
+  },
   {
    "cell_type": "markdown",
    "metadata": {},