diff --git a/dynawaltz/src/main/java/com/powsybl/dynawaltz/DynaWaltzContext.java b/dynawaltz/src/main/java/com/powsybl/dynawaltz/DynaWaltzContext.java
index 019ed49f1..d3302c725 100644
--- a/dynawaltz/src/main/java/com/powsybl/dynawaltz/DynaWaltzContext.java
+++ b/dynawaltz/src/main/java/com/powsybl/dynawaltz/DynaWaltzContext.java
@@ -36,6 +36,7 @@ public class DynaWaltzContext {
     private final DynaWaltzParametersDatabase parametersDatabase;
     private final List<BlackBoxModel> dynamicModels;
     private final List<BlackBoxModel> eventModels;
+    private final Map<String, BlackBoxModel> staticIdBlackBoxModelMap;
     private final List<Curve> curves;
     private final Map<String, MacroStaticReference> macroStaticReferences = new LinkedHashMap<>();
     private final Map<ConnectedModelTypes, MacroConnector> connectorsMap = new LinkedHashMap<>();
@@ -58,7 +59,10 @@ public DynaWaltzContext(Network network, String workingVariantId, List<BlackBoxM
         this.network = Objects.requireNonNull(network);
         this.workingVariantId = Objects.requireNonNull(workingVariantId);
         this.dynamicModels = Objects.requireNonNull(dynamicModels);
-        this.eventModels = Objects.requireNonNull(eventModels);
+        this.eventModels = checkEventModelIdUniqueness(Objects.requireNonNull(eventModels));
+        this.staticIdBlackBoxModelMap = getInputBlackBoxDynamicModelStream()
+                .filter(blackBoxModel -> blackBoxModel.getStaticId().isPresent())
+                .collect(Collectors.toMap(bbm -> bbm.getStaticId().get(), Function.identity(), this::mergeDuplicateStaticId, LinkedHashMap::new));
         this.curves = Objects.requireNonNull(curves);
         this.parameters = Objects.requireNonNull(parameters);
         this.dynaWaltzParameters = Objects.requireNonNull(dynaWaltzParameters);
@@ -117,14 +121,26 @@ public Collection<MacroStaticReference> getMacroStaticReferences() {
         return macroStaticReferences.values();
     }
 
-    public Map<String, BlackBoxModel> getStaticIdBlackBoxModelMap() {
-        return getInputBlackBoxDynamicModelStream()
-                .filter(blackBoxModel -> blackBoxModel.getStaticId().isPresent())
-                .collect(Collectors.toMap(bbm -> bbm.getStaticId().get(), Function.identity(), this::mergeDuplicateStaticId, LinkedHashMap::new));
+    public BlackBoxModel getStaticIdBlackBoxModel(String staticId) {
+        return staticIdBlackBoxModelMap.get(staticId);
     }
 
     private BlackBoxModel mergeDuplicateStaticId(BlackBoxModel bbm1, BlackBoxModel bbm2) {
-        throw new AssertionError("Duplicate staticId " + bbm1.getStaticId());
+        throw new PowsyblException("Duplicate staticId: " + bbm1.getStaticId().orElseThrow());
+    }
+
+    private static List<BlackBoxModel> checkEventModelIdUniqueness(List<BlackBoxModel> eventModels) {
+        Set<String> dynamicIds = new HashSet<>();
+        Set<String> duplicates = new HashSet<>();
+        for (BlackBoxModel bbm : eventModels) {
+            if (!dynamicIds.add(bbm.getDynamicModelId())) {
+                duplicates.add(bbm.getDynamicModelId());
+            }
+        }
+        if (!duplicates.isEmpty()) {
+            throw new PowsyblException("Duplicate dynamicId: " + duplicates);
+        }
+        return eventModels;
     }
 
     public Collection<MacroConnector> getMacroConnectors() {
diff --git a/dynawaltz/src/main/java/com/powsybl/dynawaltz/models/OmegaRef.java b/dynawaltz/src/main/java/com/powsybl/dynawaltz/models/OmegaRef.java
index 7f8022f1b..56965f080 100644
--- a/dynawaltz/src/main/java/com/powsybl/dynawaltz/models/OmegaRef.java
+++ b/dynawaltz/src/main/java/com/powsybl/dynawaltz/models/OmegaRef.java
@@ -112,7 +112,7 @@ private BusModel getBusAssociatedTo(GeneratorSynchronousModel generatorModel, Dy
             throw new PowsyblException("Generator " + generatorModel.getLib() + " not found in DynaWaltz context. Id : " + generatorModel.getDynamicModelId());
         }
         String connectedStaticId = generator.getTerminal().getBusBreakerView().getConnectableBus().getId();
-        BusModel busModel = (BusModel) context.getStaticIdBlackBoxModelMap().get(connectedStaticId);
+        BusModel busModel = (BusModel) context.getStaticIdBlackBoxModel(connectedStaticId);
         if (busModel == null) {
             busModel = context.getNetworkModel().getDefaultBusModel(connectedStaticId);
         }
diff --git a/dynawaltz/src/main/java/com/powsybl/dynawaltz/models/automatons/CurrentLimitAutomaton.java b/dynawaltz/src/main/java/com/powsybl/dynawaltz/models/automatons/CurrentLimitAutomaton.java
index d64c02abe..76e490ac0 100644
--- a/dynawaltz/src/main/java/com/powsybl/dynawaltz/models/automatons/CurrentLimitAutomaton.java
+++ b/dynawaltz/src/main/java/com/powsybl/dynawaltz/models/automatons/CurrentLimitAutomaton.java
@@ -45,7 +45,7 @@ public List<Model> getModelsConnectedTo(DynaWaltzContext context) {
         if (line == null) {
             throw new PowsyblException("Unknown line static id: " + lineStaticId);
         }
-        BlackBoxModel connectedBbm = context.getStaticIdBlackBoxModelMap().get(line.getId());
+        BlackBoxModel connectedBbm = context.getStaticIdBlackBoxModel(line.getId());
         if (connectedBbm == null) {
             return List.of(context.getNetworkModel().getDefaultLineModel(lineStaticId, side));
         }
diff --git a/dynawaltz/src/main/java/com/powsybl/dynawaltz/models/buses/StandardBus.java b/dynawaltz/src/main/java/com/powsybl/dynawaltz/models/buses/StandardBus.java
index f38695df9..c39f78a0d 100644
--- a/dynawaltz/src/main/java/com/powsybl/dynawaltz/models/buses/StandardBus.java
+++ b/dynawaltz/src/main/java/com/powsybl/dynawaltz/models/buses/StandardBus.java
@@ -83,7 +83,7 @@ public List<Model> getModelsConnectedTo(DynaWaltzContext dynaWaltzContext) {
         List<Model> connectedBbm = new ArrayList<>();
         for (Generator g : dynaWaltzContext.getNetwork().getGenerators()) {
             if (g.getTerminal().getBusBreakerView().getConnectableBus().equals(bus)) {
-                connectedBbm.add(dynaWaltzContext.getStaticIdBlackBoxModelMap().get(g.getId()));
+                connectedBbm.add(dynaWaltzContext.getStaticIdBlackBoxModel(g.getId()));
             }
         }
         return connectedBbm;
diff --git a/dynawaltz/src/main/java/com/powsybl/dynawaltz/models/events/EventQuadripoleDisconnection.java b/dynawaltz/src/main/java/com/powsybl/dynawaltz/models/events/EventQuadripoleDisconnection.java
index 6ac5316c6..f2fe96b2e 100644
--- a/dynawaltz/src/main/java/com/powsybl/dynawaltz/models/events/EventQuadripoleDisconnection.java
+++ b/dynawaltz/src/main/java/com/powsybl/dynawaltz/models/events/EventQuadripoleDisconnection.java
@@ -51,7 +51,7 @@ public List<VarConnection> getVarConnectionsWith(Model connected) {
 
     @Override
     public List<Model> getModelsConnectedTo(DynaWaltzContext context) {
-        BlackBoxModel connectedBbm = context.getStaticIdBlackBoxModelMap().get(getEquipmentStaticId());
+        BlackBoxModel connectedBbm = context.getStaticIdBlackBoxModel(getEquipmentStaticId());
         if (connectedBbm == null) {
             return List.of(context.getNetworkModel().getDefaultLineModel(getEquipmentStaticId(), Branch.Side.ONE));
         }
diff --git a/dynawaltz/src/main/java/com/powsybl/dynawaltz/models/events/EventSetPointBoolean.java b/dynawaltz/src/main/java/com/powsybl/dynawaltz/models/events/EventSetPointBoolean.java
index a7cae41f7..8429f94b9 100644
--- a/dynawaltz/src/main/java/com/powsybl/dynawaltz/models/events/EventSetPointBoolean.java
+++ b/dynawaltz/src/main/java/com/powsybl/dynawaltz/models/events/EventSetPointBoolean.java
@@ -47,7 +47,7 @@ public List<VarConnection> getVarConnectionsWith(Model connected) {
 
     @Override
     public List<Model> getModelsConnectedTo(DynaWaltzContext context) {
-        BlackBoxModel connectedBbm = context.getStaticIdBlackBoxModelMap().get(getEquipmentStaticId());
+        BlackBoxModel connectedBbm = context.getStaticIdBlackBoxModel(getEquipmentStaticId());
         if (connectedBbm == null) {
             throw new PowsyblException("Cannot find generator '" + getEquipmentStaticId() + "' among the dynamic models provided");
         }
diff --git a/dynawaltz/src/main/java/com/powsybl/dynawaltz/models/generators/AbstractGeneratorModel.java b/dynawaltz/src/main/java/com/powsybl/dynawaltz/models/generators/AbstractGeneratorModel.java
index c4863a123..945a51db6 100644
--- a/dynawaltz/src/main/java/com/powsybl/dynawaltz/models/generators/AbstractGeneratorModel.java
+++ b/dynawaltz/src/main/java/com/powsybl/dynawaltz/models/generators/AbstractGeneratorModel.java
@@ -57,7 +57,7 @@ public List<Model> getModelsConnectedTo(DynaWaltzContext context) {
             throw new PowsyblException("Generator static id unknown: " + staticId);
         }
         String connectedStaticId = generator.getTerminal().getBusBreakerView().getConnectableBus().getId();
-        BlackBoxModel connectedBbm = context.getStaticIdBlackBoxModelMap().get(connectedStaticId);
+        BlackBoxModel connectedBbm = context.getStaticIdBlackBoxModel(connectedStaticId);
         if (connectedBbm == null) {
             return List.of(context.getNetworkModel().getDefaultBusModel(connectedStaticId));
         }
diff --git a/dynawaltz/src/main/java/com/powsybl/dynawaltz/models/lines/StandardLine.java b/dynawaltz/src/main/java/com/powsybl/dynawaltz/models/lines/StandardLine.java
index 3486acd22..7e2e05e48 100644
--- a/dynawaltz/src/main/java/com/powsybl/dynawaltz/models/lines/StandardLine.java
+++ b/dynawaltz/src/main/java/com/powsybl/dynawaltz/models/lines/StandardLine.java
@@ -57,7 +57,7 @@ public List<Model> getModelsConnectedTo(DynaWaltzContext dynaWaltzContext) {
         List<Model> connectedBbm = new ArrayList<>();
         for (Bus b : dynaWaltzContext.getNetwork().getBusBreakerView().getBuses()) {
             if (b.getLineStream().anyMatch(l -> l.equals(line))) {
-                connectedBbm.add(dynaWaltzContext.getStaticIdBlackBoxModelMap().get(b.getId()));
+                connectedBbm.add(dynaWaltzContext.getStaticIdBlackBoxModel(b.getId()));
             }
         }
         return connectedBbm;
diff --git a/dynawaltz/src/main/java/com/powsybl/dynawaltz/models/loads/AbstractLoad.java b/dynawaltz/src/main/java/com/powsybl/dynawaltz/models/loads/AbstractLoad.java
index 7b16f5f0a..d1fbfff74 100644
--- a/dynawaltz/src/main/java/com/powsybl/dynawaltz/models/loads/AbstractLoad.java
+++ b/dynawaltz/src/main/java/com/powsybl/dynawaltz/models/loads/AbstractLoad.java
@@ -33,7 +33,7 @@ public List<Model> getModelsConnectedTo(DynaWaltzContext context) {
             throw new PowsyblException("Load static id unknown: " + staticId);
         }
         String connectedStaticId = load.getTerminal().getBusBreakerView().getConnectableBus().getId();
-        BlackBoxModel connectedBbm = context.getStaticIdBlackBoxModelMap().get(connectedStaticId);
+        BlackBoxModel connectedBbm = context.getStaticIdBlackBoxModel(connectedStaticId);
         if (connectedBbm == null) {
             return List.of(context.getNetworkModel().getDefaultBusModel(connectedStaticId));
         }
diff --git a/dynawaltz/src/test/java/com/powsybl/dynawaltz/xml/DynaWaltzTestUtil.java b/dynawaltz/src/test/java/com/powsybl/dynawaltz/xml/DynaWaltzTestUtil.java
index 1b848713b..20febc011 100644
--- a/dynawaltz/src/test/java/com/powsybl/dynawaltz/xml/DynaWaltzTestUtil.java
+++ b/dynawaltz/src/test/java/com/powsybl/dynawaltz/xml/DynaWaltzTestUtil.java
@@ -14,16 +14,14 @@
 import com.powsybl.dynawaltz.models.buses.StandardBus;
 import com.powsybl.dynawaltz.models.events.EventQuadripoleDisconnection;
 import com.powsybl.dynawaltz.models.events.EventSetPointBoolean;
-import com.powsybl.dynawaltz.models.generators.*;
+import com.powsybl.dynawaltz.models.generators.GeneratorFictitious;
+import com.powsybl.dynawaltz.models.generators.GeneratorSynchronous;
 import com.powsybl.dynawaltz.models.lines.StandardLine;
 import com.powsybl.dynawaltz.models.loads.LoadAlphaBeta;
 import com.powsybl.dynawaltz.models.loads.LoadOneTransformer;
 import com.powsybl.iidm.network.*;
 import com.powsybl.iidm.network.test.EurostagTutorialExample1Factory;
-import junit.framework.AssertionFailedError;
 import org.junit.Before;
-import org.junit.Rule;
-import org.junit.rules.ExpectedException;
 import org.xml.sax.SAXException;
 
 import javax.xml.XMLConstants;
@@ -45,9 +43,6 @@
  */
 public class DynaWaltzTestUtil extends AbstractConverterTest {
 
-    @Rule
-    public ExpectedException exception = ExpectedException.none();
-
     protected Network network;
     protected List<BlackBoxModel> dynamicModels;
     protected List<BlackBoxModel> eventModels;
@@ -105,9 +100,7 @@ public void setup() {
 
         // Events
         eventModels = new ArrayList<>();
-        network.getLineStream().forEach(l -> {
-            eventModels.add(new EventQuadripoleDisconnection("EM_" + l.getId(), l.getId(), 5, false, true));
-        });
+        network.getLineStream().forEach(l -> eventModels.add(new EventQuadripoleDisconnection("EM_" + l.getId(), l.getId(), 5, false, true)));
         network.getGeneratorStream().forEach(g -> {
             if (g.getId().equals("GEN2")) {
                 eventModels.add(new EventSetPointBoolean("EM_" + g.getId(), g.getId(), 1, true));
@@ -115,9 +108,7 @@ public void setup() {
         });
 
         // Automatons
-        network.getLineStream().forEach(l -> {
-            dynamicModels.add(new CurrentLimitAutomaton("BBM_" + l.getId(), l.getId(), "CLA", Branch.Side.ONE));
-        });
+        network.getLineStream().forEach(l -> dynamicModels.add(new CurrentLimitAutomaton("BBM_" + l.getId(), l.getId(), "CLA", Branch.Side.ONE)));
     }
 
     public void validate(String schemaDefinition, String expectedResourceName, Path xmlFile) throws SAXException, IOException {
@@ -214,17 +205,4 @@ private static Network createEurostagTutorialExample1WithMoreLoads() {
             .add();
         return network;
     }
-
-    public static <T extends Throwable> T assertThrows(Class<T> expectedType, Runnable runnable) {
-        try {
-            runnable.run();
-        } catch (Throwable actualException) {
-            if (expectedType.isInstance(actualException)) {
-                return (T) actualException;
-            } else {
-                throw new AssertionFailedError(String.format("Expected %s to be thrown, but %s was thrown", expectedType.getCanonicalName(), actualException.getClass().getCanonicalName()));
-            }
-        }
-        throw new AssertionFailedError(String.format("Expected %s to be thrown, but nothing was thrown.", expectedType.getCanonicalName()));
-    }
 }
diff --git a/dynawaltz/src/test/java/com/powsybl/dynawaltz/xml/DynamicModelsXmlTest.java b/dynawaltz/src/test/java/com/powsybl/dynawaltz/xml/DynamicModelsXmlTest.java
index 1b267b487..0dbae84b5 100644
--- a/dynawaltz/src/test/java/com/powsybl/dynawaltz/xml/DynamicModelsXmlTest.java
+++ b/dynawaltz/src/test/java/com/powsybl/dynawaltz/xml/DynamicModelsXmlTest.java
@@ -6,6 +6,7 @@
  */
 package com.powsybl.dynawaltz.xml;
 
+import com.powsybl.commons.PowsyblException;
 import com.powsybl.dynamicsimulation.DynamicSimulationParameters;
 import com.powsybl.dynawaltz.DynaWaltzContext;
 import com.powsybl.dynawaltz.DynaWaltzParameters;
@@ -17,6 +18,9 @@
 import java.io.IOException;
 import java.util.ArrayList;
 
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertThrows;
+
 /**
  * @author Marcos de Miguel <demiguelm at aia.es>
  */
@@ -49,4 +53,17 @@ public void writeDynamicModelWithLoadsAndOnlyOneFictitiousGenerator() throws SAX
         validate("dyd.xsd", "dyd_fictitious.xml", tmpDir.resolve(DynaWaltzConstants.DYD_FILENAME));
     }
 
+    @Test
+    public void duplicateStaticId() {
+        dynamicModels.clear();
+        network.getGeneratorStream().forEach(gen -> {
+            if (gen.getId().equals("GEN5") || gen.getId().equals("GEN6")) {
+                dynamicModels.add(new GeneratorFictitious("BBM_" + gen.getId(), "duplicateID", "GF"));
+            }
+        });
+        String workingVariantId = network.getVariantManager().getWorkingVariantId();
+        Exception e = assertThrows(PowsyblException.class, () -> new DynaWaltzContext(network, workingVariantId, dynamicModels, eventModels, curves, null, null));
+        assertEquals("Duplicate staticId: duplicateID", e.getMessage());
+    }
+
 }
diff --git a/dynawaltz/src/test/java/com/powsybl/dynawaltz/xml/EventXmlTest.java b/dynawaltz/src/test/java/com/powsybl/dynawaltz/xml/EventXmlTest.java
index b48e57298..26b1e1fac 100644
--- a/dynawaltz/src/test/java/com/powsybl/dynawaltz/xml/EventXmlTest.java
+++ b/dynawaltz/src/test/java/com/powsybl/dynawaltz/xml/EventXmlTest.java
@@ -6,17 +6,21 @@
  */
 package com.powsybl.dynawaltz.xml;
 
+import com.powsybl.commons.PowsyblException;
 import com.powsybl.dynamicsimulation.DynamicSimulationParameters;
 import com.powsybl.dynawaltz.DynaWaltzContext;
 import com.powsybl.dynawaltz.DynaWaltzParameters;
-import com.powsybl.dynawaltz.models.BlackBoxModel;
+import com.powsybl.dynawaltz.models.events.EventQuadripoleDisconnection;
+import com.powsybl.dynawaltz.models.events.EventSetPointBoolean;
 import com.powsybl.dynawaltz.models.generators.GeneratorSynchronous;
 import org.junit.Test;
 import org.xml.sax.SAXException;
 
 import javax.xml.stream.XMLStreamException;
 import java.io.IOException;
-import java.util.List;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertThrows;
 
 /**
  * @author Marcos de Miguel <demiguelm at aia.es>
@@ -25,9 +29,8 @@ public class EventXmlTest extends DynaWaltzTestUtil {
 
     @Test
     public void writeDynamicModel() throws SAXException, IOException, XMLStreamException {
-        List<BlackBoxModel> dynamicModels = List.of(
-                new GeneratorSynchronous("BBM_GEN2", "GEN2", "GSFWPR", "GeneratorSynchronousFourWindingsProportionalRegulations")
-        );
+        dynamicModels.clear();
+        dynamicModels.add(new GeneratorSynchronous("BBM_GEN2", "GEN2", "GSFWPR", "GeneratorSynchronousFourWindingsProportionalRegulations"));
         DynamicSimulationParameters parameters = DynamicSimulationParameters.load();
         DynaWaltzParameters dynawoParameters = DynaWaltzParameters.load();
         DynaWaltzContext context = new DynaWaltzContext(network, network.getVariantManager().getWorkingVariantId(),
@@ -37,4 +40,18 @@ public void writeDynamicModel() throws SAXException, IOException, XMLStreamExcep
         validate("dyd.xsd", "events.xml", tmpDir.resolve(DynaWaltzConstants.DYD_FILENAME));
     }
 
+    @Test
+    public void duplicateEventId() {
+        eventModels.clear();
+        network.getLineStream().forEach(l -> eventModels.add(new EventQuadripoleDisconnection("duplicateID", l.getId(), 5, false, true)));
+        network.getGeneratorStream().forEach(g -> {
+            if (g.getId().equals("GEN2") || g.getId().equals("GEN4")) {
+                eventModels.add(new EventSetPointBoolean("duplicateID2", g.getId(), 1, true));
+            }
+        });
+        String workingVariantId = network.getVariantManager().getWorkingVariantId();
+        Exception e = assertThrows(PowsyblException.class, () -> new DynaWaltzContext(network, workingVariantId, dynamicModels, eventModels, curves, null, null));
+        assertEquals("Duplicate dynamicId: [duplicateID, duplicateID2]", e.getMessage());
+    }
+
 }