diff --git a/src/casscf/EZFIO.cfg b/src/casscf/EZFIO.cfg
new file mode 100644
index 00000000..d5526673
--- /dev/null
+++ b/src/casscf/EZFIO.cfg
@@ -0,0 +1,13 @@
+[energy]
+type: double precision
+doc: Calculated Selected |FCI| energy
+interface: ezfio
+size: (determinants.n_states)
+
+[energy_pt2]
+type: double precision
+doc: Calculated |FCI| energy + |PT2|
+interface: ezfio
+size: (determinants.n_states)
+
+
diff --git a/src/casscf/save_energy.irp.f b/src/casscf/save_energy.irp.f
new file mode 100644
index 00000000..8729c5af
--- /dev/null
+++ b/src/casscf/save_energy.irp.f
@@ -0,0 +1,9 @@
+subroutine save_energy(E,pt2)
+  implicit none
+  BEGIN_DOC
+! Saves the energy in |EZFIO|.
+  END_DOC
+  double precision, intent(in) :: E(N_states), pt2(N_states)
+  call ezfio_set_casscf_energy(E(1:N_states))
+  call ezfio_set_casscf_energy_pt2(E(1:N_states)+pt2(1:N_states))
+end