diff --git a/CMakeLists_files.cmake b/CMakeLists_files.cmake
index f1bd53e9684..f56df1305dc 100644
--- a/CMakeLists_files.cmake
+++ b/CMakeLists_files.cmake
@@ -244,6 +244,7 @@ list (APPEND MAIN_SOURCE_FILES
   opm/simulators/wells/ParallelWBPCalculation.cpp
   opm/simulators/wells/ParallelWellInfo.cpp
   opm/simulators/wells/PerfData.cpp
+  opm/simulators/wells/PerforationData.cpp
   opm/simulators/wells/RateConverter.cpp
   opm/simulators/wells/RatioCalculator.cpp
   opm/simulators/wells/SegmentState.cpp
diff --git a/opm/simulators/flow/BlackoilModelParameters.cpp b/opm/simulators/flow/BlackoilModelParameters.cpp
index 1e05f78a23c..6b0ecb9f293 100644
--- a/opm/simulators/flow/BlackoilModelParameters.cpp
+++ b/opm/simulators/flow/BlackoilModelParameters.cpp
@@ -335,6 +335,40 @@ void BlackoilModelParameters<Scalar>::registerParameters()
 #endif
 }
 
+template<class Scalar>
+BlackoilModelParameters<Scalar>
+BlackoilModelParameters<Scalar>::serializationTestObject()
+{
+    BlackoilModelParameters result;
+    result.tolerance_cnv_ = 1.1;
+    result.tolerance_cnv_relaxed_ = 1.2;
+    result.tolerance_mb_ = 1.3;
+    result.tolerance_mb_relaxed_ = 1.4;
+    result.newton_max_iter_ = 15;
+    result.newton_min_iter_ = 2;
+    result.tolerance_max_dp_ = 1.5;
+    result.tolerance_max_ds_ = 1.6;
+    result.tolerance_max_drs_ = 1.7;
+    result.tolerance_max_drv_ = 1.8;
+    return result;
+}
+
+template<class Scalar>
+bool BlackoilModelParameters<Scalar>::
+operator==(const BlackoilModelParameters& other) const
+{
+    return tolerance_cnv_ == other.tolerance_cnv_ &&
+           tolerance_cnv_relaxed_ == other.tolerance_cnv_relaxed_ &&
+           tolerance_mb_ == other.tolerance_mb_ &&
+           tolerance_mb_relaxed_ == other.tolerance_mb_relaxed_ &&
+           newton_max_iter_ == other.newton_max_iter_ &&
+           newton_min_iter_ == other.newton_min_iter_ &&
+           tolerance_max_dp_ == other.tolerance_max_dp_ &&
+           tolerance_max_ds_ == other.tolerance_max_ds_ &&
+           tolerance_max_drs_ == other.tolerance_max_drs_ &&
+           tolerance_max_drv_ == other.tolerance_max_drv_;
+}
+
 template struct BlackoilModelParameters<double>;
 
 #if FLOW_INSTANTIATE_FLOAT
diff --git a/opm/simulators/flow/BlackoilModelParameters.hpp b/opm/simulators/flow/BlackoilModelParameters.hpp
index caadd0fc100..a31f6ced409 100644
--- a/opm/simulators/flow/BlackoilModelParameters.hpp
+++ b/opm/simulators/flow/BlackoilModelParameters.hpp
@@ -419,6 +419,27 @@ struct BlackoilModelParameters
     // If violated the nupcol wellstate is updated
     Scalar nupcol_group_rate_tolerance_;
 
+    template<class Serializer>
+    void serializeOp(Serializer& serializer)
+    {
+      // Only dynamic state is serialized. Static configuration remains sourced
+      // from CLI/deck parameters and defaults on construction.
+      serializer(tolerance_cnv_);
+      serializer(tolerance_cnv_relaxed_);
+      serializer(tolerance_mb_);
+      serializer(tolerance_mb_relaxed_);
+      serializer(newton_max_iter_);
+      serializer(newton_min_iter_);
+      serializer(tolerance_max_dp_);
+      serializer(tolerance_max_ds_);
+      serializer(tolerance_max_drs_);
+      serializer(tolerance_max_drv_);
+    }
+
+    static BlackoilModelParameters serializationTestObject();
+
+    bool operator==(const BlackoilModelParameters& other) const;
+
     /// Construct from user parameters or defaults.
     BlackoilModelParameters();
 
diff --git a/opm/simulators/flow/FlowProblem.hpp b/opm/simulators/flow/FlowProblem.hpp
index d9794fb29a9..4937c22ce77 100644
--- a/opm/simulators/flow/FlowProblem.hpp
+++ b/opm/simulators/flow/FlowProblem.hpp
@@ -1279,10 +1279,12 @@ class FlowProblem : public GetPropType<TypeTag, Properties::BaseProblem>
     void serializeOp(Serializer& serializer)
     {
         serializer(static_cast<BaseType&>(*this));
+        serializer(first_step_);
         serializer(drift_);
         serializer(wellModel_);
         serializer(aquiferModel_);
         serializer(tracerModel_);
+        serializer(temperatureModel_);
         serializer(*materialLawManager_);
     }
 
diff --git a/opm/simulators/flow/SimulatorFullyImplicit_impl.hpp b/opm/simulators/flow/SimulatorFullyImplicit_impl.hpp
index f250316ee54..b126b04226b 100644
--- a/opm/simulators/flow/SimulatorFullyImplicit_impl.hpp
+++ b/opm/simulators/flow/SimulatorFullyImplicit_impl.hpp
@@ -583,6 +583,7 @@ serializeOp(Serializer& serializer)
     serializer(simulator_);
     serializer(report_);
     serializer(adaptiveTimeStepping_);
+    serializer(modelParam_);
 }
 
 template<class TypeTag>
diff --git a/opm/simulators/flow/TemperatureModel.hpp b/opm/simulators/flow/TemperatureModel.hpp
index 513601918c3..cd0f19e7543 100644
--- a/opm/simulators/flow/TemperatureModel.hpp
+++ b/opm/simulators/flow/TemperatureModel.hpp
@@ -240,6 +240,19 @@ class TemperatureModel : public GenericTemperatureModel<GetPropType<TypeTag, Pro
         , simulator_(simulator)
     {}
 
+    static TemperatureModel serializationTestObject(Simulator& simulator)
+    {
+        TemperatureModel result(simulator);
+        result.doInit(3);
+        result.temperature_ = {281.0, 282.0, 283.0};
+        return result;
+    }
+
+    bool operator==(const TemperatureModel& other) const
+    {
+        return this->temperature_ == other.temperature_;
+    }
+
     void init()
     {
         const unsigned int numCells = simulator_.model().numTotalDof();
@@ -383,6 +396,14 @@ class TemperatureModel : public GenericTemperatureModel<GetPropType<TypeTag, Pro
     void deserialize(Restarter&)
     { /* not implemented */ }
 
+    template<class Serializer>
+    void serializeOp(Serializer& serializer)
+    {
+        // Only dynamic state is serialized. Geometry-derived caches and
+        // solver/work arrays are rebuilt from the current simulator state.
+        serializer(this->temperature_);
+    }
+
 protected:
     void updateStorageCache()
     {
@@ -796,6 +817,12 @@ class TemperatureModel<TypeTag, false>
     void deserialize(Restarter&)
     { /* not implemented */ }
 
+    template<class Serializer>
+    void serializeOp(Serializer&)
+    {
+        // No dynamic state for the disabled temperature model variant.
+    }
+
     void init() {}
     void beginTimeStep() {}
     const Scalar temperature(size_t /*globalIdx*/) const
diff --git a/opm/simulators/wells/BlackoilWellModelGeneric.hpp b/opm/simulators/wells/BlackoilWellModelGeneric.hpp
index 6de8e3aee71..1d94cea92c5 100644
--- a/opm/simulators/wells/BlackoilWellModelGeneric.hpp
+++ b/opm/simulators/wells/BlackoilWellModelGeneric.hpp
@@ -260,11 +260,13 @@ class BlackoilWellModelGeneric
         serializer(initial_step_);
         serializer(report_step_starts_);
         serializer(last_run_wellpi_);
+        serializer(well_perf_data_);
         serializer(local_shut_wells_);
         serializer(closed_this_step_);
         serializer(guideRate_);
         serializer(genNetwork_);
         serializer(prev_inj_multipliers_);
+        serializer(filter_cake_);
         serializer(active_wgstate_);
         serializer(last_valid_wgstate_);
         serializer(nupcol_wgstate_);
diff --git a/opm/simulators/wells/BlackoilWellModelNetwork.hpp b/opm/simulators/wells/BlackoilWellModelNetwork.hpp
index 5984c769516..2f022fd3b35 100644
--- a/opm/simulators/wells/BlackoilWellModelNetwork.hpp
+++ b/opm/simulators/wells/BlackoilWellModelNetwork.hpp
@@ -72,7 +72,6 @@ class BlackoilWellModelNetwork :
     bool computeWellGroupThp(const double dt, DeferredLogger& local_deferredLogger);
 
     BlackoilWellModel<TypeTag>& well_model_;
-    std::map<std::string, Scalar> well_group_thp_calc_;
 };
 
 } // namespace Opm
diff --git a/opm/simulators/wells/BlackoilWellModelNetworkGeneric.hpp b/opm/simulators/wells/BlackoilWellModelNetworkGeneric.hpp
index 33e82224b47..6809602e587 100644
--- a/opm/simulators/wells/BlackoilWellModelNetworkGeneric.hpp
+++ b/opm/simulators/wells/BlackoilWellModelNetworkGeneric.hpp
@@ -114,6 +114,7 @@ class BlackoilWellModelNetworkGeneric
         serializer(last_valid_node_pressures_);
         serializer(branch_data_);
         serializer(last_valid_branch_data_);
+        serializer(well_group_thp_calc_);
     }
 
     bool operator==(const BlackoilWellModelNetworkGeneric<Scalar,IndexTraits>& rhs) const;
@@ -138,6 +139,8 @@ class BlackoilWellModelNetworkGeneric
     std::map<std::string, Scalar> last_valid_node_pressures_;
     // Valid network branch pressure drops and flow rates for output (outlet branch for production network, inlet branch for injection network) for safe restart after failed iterations
     std::map<std::string, data::BranchData> last_valid_branch_data_;
+    // Cached auto-choke THP values used when balancing network groups.
+    std::map<std::string, Scalar> well_group_thp_calc_;
 };
 
 } // namespace Opm
diff --git a/opm/simulators/wells/BlackoilWellModelNetwork_impl.hpp b/opm/simulators/wells/BlackoilWellModelNetwork_impl.hpp
index 79cbe2c0d49..6c529a749c6 100644
--- a/opm/simulators/wells/BlackoilWellModelNetwork_impl.hpp
+++ b/opm/simulators/wells/BlackoilWellModelNetwork_impl.hpp
@@ -331,7 +331,7 @@ computeWellGroupThp(const double dt, DeferredLogger& local_deferredLogger)
                 }
             }
              if (autochoke_thp.has_value()) {
-                well_group_thp_calc_[nodeName] = autochoke_thp.value();
+                this->well_group_thp_calc_[nodeName] = autochoke_thp.value();
                 // Note: The node pressure of the auto-choke node is set
                 // to well_group_thp in computeNetworkPressures()
                 // and must be larger or equal to the pressure of the uptree node of its branch.
diff --git a/opm/simulators/wells/PerforationData.cpp b/opm/simulators/wells/PerforationData.cpp
new file mode 100644
index 00000000000..7f98a3b57ff
--- /dev/null
+++ b/opm/simulators/wells/PerforationData.cpp
@@ -0,0 +1,38 @@
+#include <config.h>
+#include <opm/simulators/wells/PerforationData.hpp>
+
+namespace Opm {
+
+template<class Scalar>
+PerforationData<Scalar> PerforationData<Scalar>::serializationTestObject()
+{
+    PerforationData result;
+    result.cell_index = 17;
+    result.connection_transmissibility_factor = 1.25e-8;
+    result.connection_d_factor = 3.5e-4;
+    result.satnum_id = 23;
+    result.ecl_index = 29;
+    result.grid_id = 31;
+    result.global_index = 37;
+    return result;
+}
+
+template<class Scalar>
+bool PerforationData<Scalar>::operator==(const PerforationData& rhs) const
+{
+    return this->cell_index == rhs.cell_index
+        && this->connection_transmissibility_factor == rhs.connection_transmissibility_factor
+        && this->connection_d_factor == rhs.connection_d_factor
+        && this->satnum_id == rhs.satnum_id
+        && this->ecl_index == rhs.ecl_index
+        && this->grid_id == rhs.grid_id
+        && this->global_index == rhs.global_index;
+}
+
+template struct PerforationData<double>;
+
+#if FLOW_INSTANTIATE_FLOAT
+template struct PerforationData<float>;
+#endif
+
+} // namespace Opm
diff --git a/opm/simulators/wells/PerforationData.hpp b/opm/simulators/wells/PerforationData.hpp
index fee83562ae4..48d40ce583d 100644
--- a/opm/simulators/wells/PerforationData.hpp
+++ b/opm/simulators/wells/PerforationData.hpp
@@ -28,6 +28,10 @@ namespace Opm {
 template<class Scalar>
 struct PerforationData
 {
+  static PerforationData serializationTestObject();
+
+  bool operator==(const PerforationData&) const;
+
     int cell_index{};
     Scalar connection_transmissibility_factor{};
     Scalar connection_d_factor{};
@@ -49,6 +53,18 @@ struct PerforationData
     /// identified via globalCellIdxMap[active_idx] alone (which returns
     /// the level-0 ancestor's Cartesian, shared by all siblings).
     std::size_t global_index{};
+
+    template<class Serializer>
+    void serializeOp(Serializer& serializer)
+    {
+      serializer(cell_index);
+      serializer(connection_transmissibility_factor);
+      serializer(connection_d_factor);
+      serializer(satnum_id);
+      serializer(ecl_index);
+      serializer(grid_id);
+      serializer(global_index);
+    }
 };
 
 template<class Scalar>
diff --git a/opm/simulators/wells/WellFilterCake.hpp b/opm/simulators/wells/WellFilterCake.hpp
index f39201fb734..cf04396d353 100644
--- a/opm/simulators/wells/WellFilterCake.hpp
+++ b/opm/simulators/wells/WellFilterCake.hpp
@@ -33,6 +33,22 @@ template<typename Scalar, typename IndexTraits> class WellState;
 template<typename Scalar, typename IndexTraits>
 class WellFilterCake {
 public:
+  static WellFilterCake serializationTestObject()
+  {
+    WellFilterCake result;
+    result.inj_fc_multiplier_ = {1.1, 1.2};
+    result.skin_factor_ = {2.1, 2.2};
+    result.thickness_ = {3.1, 3.2};
+    return result;
+  }
+
+  bool operator==(const WellFilterCake& other) const
+  {
+    return inj_fc_multiplier_ == other.inj_fc_multiplier_ &&
+         skin_factor_ == other.skin_factor_ &&
+         thickness_ == other.thickness_;
+  }
+
     //! \brief Post-step filtration model updates
     //! \details Calculates the filtrate deposition volumes and associated skin factors / injectivity multipliers
     void updatePostStep(const WellInterfaceGeneric<Scalar, IndexTraits>& well,
@@ -50,6 +66,16 @@ class WellFilterCake {
     //! \brief Returns a const-ref to multipliers.
     const std::vector<Scalar>& multipliers() const { return inj_fc_multiplier_; }
 
+    template<class Serializer>
+    void serializeOp(Serializer& serializer)
+    {
+      // Only dynamic state is serialized. Model configuration remains sourced
+      // from schedule and runtime setup.
+      serializer(inj_fc_multiplier_);
+      serializer(skin_factor_);
+      serializer(thickness_);
+    }
+
 private:
     //! \brief Update the multiplier for well transmissbility due to cake filtration.
     void updateSkinFactorsAndMultipliers(const WellInterfaceGeneric<Scalar, IndexTraits>& well,
diff --git a/tests/test_RestartSerialization.cpp b/tests/test_RestartSerialization.cpp
index d9a8903faab..8152aaa31fe 100644
--- a/tests/test_RestartSerialization.cpp
+++ b/tests/test_RestartSerialization.cpp
@@ -33,12 +33,16 @@
 #include <opm/input/eclipse/EclipseState/WagHysteresisConfig.hpp>
 
 #include <opm/material/fluidmatrixinteractions/EclHysteresisTwoPhaseLawParams.hpp>
+#include <opm/material/thermal/EnergyModuleType.hpp>
 
+#include <opm/models/blackoil/blackoilenergymodules.hh>
 #include <opm/models/blackoil/blackoilprimaryvariables.hh>
 
+#include <opm/simulators/flow/BlackoilModelParameters.hpp>
 #include <opm/simulators/flow/FemCpGridCompat.hpp>
 #include <opm/simulators/flow/FlowGenericVanguard.hpp>
 #include <opm/simulators/flow/FlowProblemBlackoil.hpp>
+#include <opm/simulators/flow/TemperatureModel.hpp>
 #include <opm/simulators/timestepping/AdaptiveTimeStepping.hpp>
 #include <opm/simulators/timestepping/SimulatorReport.hpp>
 #include <opm/simulators/timestepping/SimulatorTimer.hpp>
@@ -48,8 +52,10 @@
 #include <opm/simulators/wells/BlackoilWellModelGeneric.hpp>
 #include <opm/simulators/wells/GroupState.hpp>
 #include <opm/simulators/wells/PerfData.hpp>
+#include <opm/simulators/wells/PerforationData.hpp>
 #include <opm/simulators/wells/SegmentState.hpp>
 #include <opm/simulators/wells/SingleWellState.hpp>
+#include <opm/simulators/wells/WellFilterCake.hpp>
 
 #define BOOST_TEST_MODULE TestRestartSerialization
 #define BOOST_TEST_NO_MAIN
@@ -64,8 +70,16 @@ namespace Opm::Properties {
     struct TestRestartTypeTag {
             using InheritsFrom = std::tuple<TestTypeTag>;
         };
+
+    struct TestSequentialTemperatureTypeTag {
+            using InheritsFrom = std::tuple<TestTypeTag>;
+        };
     }
 
+    template<class TypeTag>
+    struct EnergyModuleType<TypeTag, TTag::TestSequentialTemperatureTypeTag>
+    { static constexpr EnergyModules value = EnergyModules::SequentialImplicitThermal; };
+
     template<>
     struct LinearSolverBackend<TTag::TestRestartTypeTag, TTag::FlowIstlSolverParams> {
         using type = ISTLSolver<TTag::TestRestartTypeTag>;
@@ -109,6 +123,8 @@ TEST_FOR_TYPE(HardcodedTimeStepControl)
 TEST_FOR_TYPE(Inplace)
 namespace Opm { using PerfD = PerfData<double>; }
 TEST_FOR_TYPE_NAMED(PerfD, PerfData)
+namespace Opm { using Perf = PerforationData<double>; }
+TEST_FOR_TYPE_NAMED(Perf, PerforationData)
 TEST_FOR_TYPE(PIDAndIterationCountTimeStepControl)
 TEST_FOR_TYPE(PIDTimeStepControl)
 namespace Opm { using SegmState = SegmentState<double>; }
@@ -128,6 +144,28 @@ TEST_FOR_TYPE_NAMED_OBJ(ATS, AdaptiveTimeStepping3rdOrder, serializationTestObje
 namespace Opm { using BPV = BlackOilPrimaryVariables<Properties::TTag::TestTypeTag>; }
 TEST_FOR_TYPE_NAMED(BPV, BlackoilPrimaryVariables)
 
+namespace Opm { using BMP = BlackoilModelParameters<double>; }
+TEST_FOR_TYPE_NAMED(BMP, BlackoilModelParameters)
+namespace Opm { using WFC = WellFilterCake<double, BlackOilDefaultFluidSystemIndices>; }
+TEST_FOR_TYPE_NAMED(WFC, WellFilterCake)
+
+BOOST_AUTO_TEST_CASE(EnabledTemperatureModel)
+{
+    using TypeTag = Opm::Properties::TTag::TestSequentialTemperatureTypeTag;
+    Opm::FlowGenericVanguard::readDeck("GLIFT1.DATA");
+    using Simulator = Opm::GetPropType<TypeTag, Opm::Properties::Simulator>;
+    Simulator simulator;
+    auto data_out = Opm::TemperatureModel<TypeTag>::serializationTestObject(simulator);
+    Opm::Serialization::MemPacker packer;
+    Opm::Serializer serializer(packer);
+    serializer.pack(data_out);
+    const auto packedSize = serializer.position();
+    auto data_in = Opm::TemperatureModel<TypeTag>::serializationTestObject(simulator);
+    serializer.unpack(data_in);
+    BOOST_CHECK_EQUAL(packedSize, serializer.position());
+    BOOST_CHECK(data_out == data_in);
+}
+
 namespace Opm {
     struct DummyMaterial {
         struct Params {
@@ -535,7 +573,7 @@ struct AquiferFixture {
         Parameters::Register<Parameters::NewtonMaxIterations>("The maximum number of Newton iterations per time step");
         Opm::ThreadManager::registerParameters();
         AdaptiveTimeStepping<TT>::registerParameters();
-        BlackoilModelParameters<double>::registerParameters();
+        Opm::BlackoilModelParameters<double>::registerParameters();
         Parameters::Register<Parameters::EnableTerminalOutput>("Do *NOT* use!");
         setupParameters_<TT>(2, argv, /*registerParams=*/true, false, true, 0);
         Opm::FlowGenericVanguard::setCommunication(std::make_unique<Opm::Parallel::Communication>());