diff --git a/src/components/dialogs/network-modifications/tabular/generation/prefillable-columns-config.ts b/src/components/dialogs/network-modifications/tabular/generation/prefillable-columns-config.ts
index fe8e6321ec..0dabe62438 100644
--- a/src/components/dialogs/network-modifications/tabular/generation/prefillable-columns-config.ts
+++ b/src/components/dialogs/network-modifications/tabular/generation/prefillable-columns-config.ts
@@ -73,6 +73,7 @@ import {
     REACTIVE_CAPABILITY_CURVE_P_MAX,
     REACTIVE_CAPABILITY_CURVE_Q_MIN_P_MAX,
     REACTIVE_CAPABILITY_CURVE_Q_MAX_P_MAX,
+    REGULATION_TYPE,
 } from 'components/utils/field-constants';
 import { FieldConstants } from '@gridsuite/commons-ui';
 
@@ -347,6 +348,11 @@ export const PREFILLED_COLUMNS_CONFIG: Record<string, PrefilledColumnGroup[]> =
             csvColumns: [TARGET_V],
             networkFields: ['targetV'],
         },
+        {
+            labelId: REGULATION_TYPE,
+            csvColumns: [REGULATION_TYPE],
+            networkFields: ['regulationType'],
+        },
         {
             labelId: REGULATING_TERMINAL_ID,
             csvColumns: [REGULATING_TERMINAL_ID],
diff --git a/src/components/dialogs/network-modifications/tabular/generation/utils.ts b/src/components/dialogs/network-modifications/tabular/generation/utils.ts
index dab84e3ccf..2426e041e6 100644
--- a/src/components/dialogs/network-modifications/tabular/generation/utils.ts
+++ b/src/components/dialogs/network-modifications/tabular/generation/utils.ts
@@ -4,7 +4,7 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
  */
-import { Identifiable, yupConfig as yup, type MuiStyles, type UseStateBooleanReturn } from '@gridsuite/commons-ui';
+import { Identifiable, type MuiStyles, type UseStateBooleanReturn, yupConfig as yup } from '@gridsuite/commons-ui';
 import { ReactiveCapabilityCurvePoints } from 'components/dialogs/reactive-limits/reactive-limits.type';
 import { SHUNT_COMPENSATOR_TYPES } from 'components/network/constants';
 import { EQUIPMENT_TYPES } from 'components/utils/equipment-types';
@@ -22,7 +22,7 @@ import {
     REACTIVE_CAPABILITY_CURVE_Q_MIN_P_MAX,
     REACTIVE_CAPABILITY_CURVE_Q_MIN_P_MIN,
 } from 'components/utils/field-constants';
-import { mapGeneratorDataForTable, mapTwtDataForTable } from 'utils/spreadsheet-equipments-mapper';
+import { mapTwtDataForTable } from 'utils/spreadsheet-equipments-mapper';
 
 export const styles = {
     dialogContent: {
@@ -187,10 +187,9 @@ export const mapPrefilledEquipments = (equipmentType: EQUIPMENT_TYPES, equipment
     switch (equipmentType) {
         case EQUIPMENT_TYPES.TWO_WINDINGS_TRANSFORMER:
             return equipments.map(mapTwtDataForTable);
-        case EQUIPMENT_TYPES.GENERATOR:
-            return equipments.map((eq) => mapReactiveCapabilityCurvePointsToFormFields(mapGeneratorDataForTable(eq)));
         case EQUIPMENT_TYPES.SHUNT_COMPENSATOR:
             return equipments.map(mapShuntCompensatorToFormFields);
+        case EQUIPMENT_TYPES.GENERATOR:
         case EQUIPMENT_TYPES.BATTERY:
             return equipments.map(mapReactiveCapabilityCurvePointsToFormFields);
         default:
diff --git a/src/redux/reducer.ts b/src/redux/reducer.ts
index a19f6fcc02..efcbbafd45 100644
--- a/src/redux/reducer.ts
+++ b/src/redux/reducer.ts
@@ -1517,6 +1517,7 @@ export const reducer = createReducer(initialState, (builder) => {
         switch (action.equipmentType) {
             case SpreadsheetEquipmentType.GENERATOR:
                 propsToClean = {
+                    regulationType: undefined,
                     regulatingTerminalVlName: undefined,
                     regulatingTerminalConnectableId: undefined,
                     regulatingTerminalConnectableType: undefined,
diff --git a/src/utils/spreadsheet-equipments-mapper.ts b/src/utils/spreadsheet-equipments-mapper.ts
index 7b72e8d813..bab88bbf36 100644
--- a/src/utils/spreadsheet-equipments-mapper.ts
+++ b/src/utils/spreadsheet-equipments-mapper.ts
@@ -74,16 +74,6 @@ export const mapPhaseTapChanger = (twt: any) => {
 
 export const mapTwtDataForTable = (twt: any) => mapPhaseTapChanger(mapRatioTapChanger(twt));
 
-export const mapGeneratorDataForTable = (generator: any) => {
-    const formattedGenerator = { ...generator };
-    const hasDistantRegulation =
-        formattedGenerator.regulatingTerminalVlId || formattedGenerator.regulatingTerminalConnectableId;
-    formattedGenerator.RegulationTypeText =
-        formattedGenerator.RegulationTypeText ||
-        (hasDistantRegulation ? REGULATION_TYPES.DISTANT.id : REGULATION_TYPES.LOCAL.id);
-    return formattedGenerator;
-};
-
 export const mapShuntCompensatorDataForTable = (shuntCompensator: any) => {
     const formattedCompensator = { ...shuntCompensator };
 
@@ -102,8 +92,6 @@ const mapSpreadsheetEquipment = (equipmentType: SpreadsheetEquipmentType, equipm
         case SpreadsheetEquipmentType.TWO_WINDINGS_TRANSFORMER:
         case SpreadsheetEquipmentType.BRANCH: // can do it because mappers test if field present before modifying
             return mapTwtDataForTable(equipment);
-        case SpreadsheetEquipmentType.GENERATOR:
-            return mapGeneratorDataForTable(equipment);
         case SpreadsheetEquipmentType.SHUNT_COMPENSATOR:
             return mapShuntCompensatorDataForTable(equipment);
         default: