diff --git a/include/Configuration.h b/include/Configuration.h
index 7f3d7db..15c037a 100644
--- a/include/Configuration.h
+++ b/include/Configuration.h
@@ -34,6 +34,7 @@
 struct CHANNEL_CONFIG_T {
     uint16_t MaxChannelPower;
     char Name[CHAN_MAX_NAME_STRLEN];
+    float YieldTotalOffset;
 };
 
 struct INVERTER_CONFIG_T {
diff --git a/lib/Hoymiles/src/parser/StatisticsParser.cpp b/lib/Hoymiles/src/parser/StatisticsParser.cpp
index 79ff16d..0af50ed 100644
--- a/lib/Hoymiles/src/parser/StatisticsParser.cpp
+++ b/lib/Hoymiles/src/parser/StatisticsParser.cpp
@@ -59,9 +59,21 @@ const byteAssign_t* StatisticsParser::getAssignmentByChannelField(ChannelType_t
     return NULL;
 }
 
+fieldSettings_t* StatisticsParser::getSettingByChannelField(ChannelType_t type, ChannelNum_t channel, FieldId_t fieldId)
+{
+    for (auto& i : _fieldSettings) {
+        if (i.type == type && i.ch == channel && i.fieldId == fieldId) {
+            return &i;
+        }
+    }
+    return NULL;
+}
+
 float StatisticsParser::getChannelFieldValue(ChannelType_t type, ChannelNum_t channel, FieldId_t fieldId)
 {
     const byteAssign_t* pos = getAssignmentByChannelField(type, channel, fieldId);
+    fieldSettings_t* setting = getSettingByChannelField(type, channel, fieldId);
+
     if (pos == NULL) {
         return 0;
     }
@@ -88,6 +100,9 @@ float StatisticsParser::getChannelFieldValue(ChannelType_t type, ChannelNum_t ch
         }
 
         result /= static_cast<float>(div);
+        if (setting != NULL) {
+            result += setting->offset;
+        }
         return result;
     } else {
         // Value has to be calculated
@@ -121,6 +136,25 @@ uint8_t StatisticsParser::getChannelFieldDigits(ChannelType_t type, ChannelNum_t
     return pos->digits;
 }
 
+float StatisticsParser::getChannelFieldOffset(ChannelType_t type, ChannelNum_t channel, FieldId_t fieldId)
+{
+    fieldSettings_t* setting = getSettingByChannelField(type, channel, fieldId);
+    if (setting != NULL) {
+        return setting->offset;
+    }
+    return 0;
+}
+
+void StatisticsParser::setChannelFieldOffset(ChannelType_t type, ChannelNum_t channel, FieldId_t fieldId, float offset)
+{
+    fieldSettings_t* setting = getSettingByChannelField(type, channel, fieldId);
+    if (setting != NULL) {
+        setting->offset = offset;
+    } else {
+        _fieldSettings.push_back({ type, channel, fieldId, offset });
+    }
+}
+
 std::list<ChannelType_t> StatisticsParser::getChannelTypes()
 {
     return {
diff --git a/lib/Hoymiles/src/parser/StatisticsParser.h b/lib/Hoymiles/src/parser/StatisticsParser.h
index 3611679..c52514a 100644
--- a/lib/Hoymiles/src/parser/StatisticsParser.h
+++ b/lib/Hoymiles/src/parser/StatisticsParser.h
@@ -82,6 +82,13 @@ typedef struct {
     uint8_t digits; // number of valid digits after the decimal point
 } byteAssign_t;
 
+typedef struct {
+    ChannelType_t type;
+    ChannelNum_t ch; // channel 0 - 4
+    FieldId_t fieldId; // field id
+    float offset; // offset (positive/negative) to be applied on the fetched value
+} fieldSettings_t;
+
 class StatisticsParser : public Parser {
 public:
     void clearBuffer();
@@ -90,12 +97,17 @@ public:
     void setByteAssignment(const std::list<byteAssign_t>* byteAssignment);
 
     const byteAssign_t* getAssignmentByChannelField(ChannelType_t type, ChannelNum_t channel, FieldId_t fieldId);
+    fieldSettings_t* getSettingByChannelField(ChannelType_t type, ChannelNum_t channel, FieldId_t fieldId);
+
     float getChannelFieldValue(ChannelType_t type, ChannelNum_t channel, FieldId_t fieldId);
     bool hasChannelFieldValue(ChannelType_t type, ChannelNum_t channel, FieldId_t fieldId);
     const char* getChannelFieldUnit(ChannelType_t type, ChannelNum_t channel, FieldId_t fieldId);
     const char* getChannelFieldName(ChannelType_t type, ChannelNum_t channel, FieldId_t fieldId);
     uint8_t getChannelFieldDigits(ChannelType_t type, ChannelNum_t channel, FieldId_t fieldId);
 
+    float getChannelFieldOffset(ChannelType_t type, ChannelNum_t channel, FieldId_t fieldId);
+    void setChannelFieldOffset(ChannelType_t type, ChannelNum_t channel, FieldId_t fieldId, float offset);
+
     std::list<ChannelType_t> getChannelTypes();
     const char* getChannelTypeName(ChannelType_t type);
     std::list<ChannelNum_t> getChannelsByType(ChannelType_t type);
@@ -113,6 +125,7 @@ private:
     uint16_t _stringMaxPower[CH4];
 
     const std::list<byteAssign_t>* _byteAssignment;
+    std::list<fieldSettings_t> _fieldSettings;
 
     uint32_t _rxFailureCount = 0;
 };
\ No newline at end of file
diff --git a/src/Configuration.cpp b/src/Configuration.cpp
index 47142e7..8ec7a9e 100644
--- a/src/Configuration.cpp
+++ b/src/Configuration.cpp
@@ -100,6 +100,7 @@ bool ConfigurationClass::write()
             JsonObject chanData = channel.createNestedObject();
             chanData["name"] = config.Inverter[i].channel[c].Name;
             chanData["max_power"] = config.Inverter[i].channel[c].MaxChannelPower;
+            chanData["yield_total_offset"] = config.Inverter[i].channel[c].YieldTotalOffset;
         }
     }
 
@@ -228,6 +229,7 @@ bool ConfigurationClass::read()
         JsonArray channel = inv["channel"];
         for (uint8_t c = 0; c < INV_MAX_CHAN_COUNT; c++) {
             config.Inverter[i].channel[c].MaxChannelPower = channel[c]["max_power"] | 0;
+            config.Inverter[i].channel[c].YieldTotalOffset = channel[c]["yield_total_offset"] | 0.0f;
             strlcpy(config.Inverter[i].channel[c].Name, channel[c]["name"] | "", sizeof(config.Inverter[i].channel[c].Name));
         }
     }
diff --git a/src/WebApi_inverter.cpp b/src/WebApi_inverter.cpp
index 4305c87..77a9c88 100644
--- a/src/WebApi_inverter.cpp
+++ b/src/WebApi_inverter.cpp
@@ -67,6 +67,7 @@ void WebApiInverterClass::onInverterList(AsyncWebServerRequest* request)
                 JsonObject chanData = channel.createNestedObject();
                 chanData["name"] = config.Inverter[i].channel[c].Name;
                 chanData["max_power"] = config.Inverter[i].channel[c].MaxChannelPower;
+                chanData["yield_total_offset"] = config.Inverter[i].channel[c].YieldTotalOffset;
             }
         }
     }
@@ -267,6 +268,7 @@ void WebApiInverterClass::onInverterEdit(AsyncWebServerRequest* request)
     uint8_t arrayCount = 0;
     for (JsonVariant channel : channelArray) {
         inverter.channel[arrayCount].MaxChannelPower = channel[F("max_power")].as<uint16_t>();
+        inverter.channel[arrayCount].YieldTotalOffset = channel[F("yield_total_offset")].as<float>();
         strncpy(inverter.channel[arrayCount].Name, channel[F("name")] | "", sizeof(inverter.channel[arrayCount].Name));
         arrayCount++;
     }
@@ -297,6 +299,7 @@ void WebApiInverterClass::onInverterEdit(AsyncWebServerRequest* request)
     if (inv != nullptr) {
         for (uint8_t c = 0; c < INV_MAX_CHAN_COUNT; c++) {
             inv->Statistics()->setStringMaxPower(c, inverter.channel[c].MaxChannelPower);
+            inv->Statistics()->setChannelFieldOffset(TYPE_DC, static_cast<ChannelNum_t>(c), FLD_YT, inverter.channel[c].YieldTotalOffset);
         }
     }
 
diff --git a/src/main.cpp b/src/main.cpp
index 56aa65b..273a7bb 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -150,6 +150,7 @@ void setup()
                 if (inv != nullptr) {
                     for (uint8_t c = 0; c < INV_MAX_CHAN_COUNT; c++) {
                         inv->Statistics()->setStringMaxPower(c, config.Inverter[i].channel[c].MaxChannelPower);
+                        inv->Statistics()->setChannelFieldOffset(TYPE_DC, static_cast<ChannelNum_t>(c), FLD_YT, config.Inverter[i].channel[c].YieldTotalOffset);
                     }
                 }
                 MessageOutput.println(F(" done"));
diff --git a/webapp/src/locales/de.json b/webapp/src/locales/de.json
index c63fa35..711ffed 100644
--- a/webapp/src/locales/de.json
+++ b/webapp/src/locales/de.json
@@ -404,6 +404,8 @@
         "StringNameHint": "Hier kann ein eigener Name für den entsprechenden Port des Wechselrichters angegeben werden.",
         "StringMaxPower": "Max. Leistung String {num}:",
         "StringMaxPowerHint": "Eingabe der maximalen Leistung der angeschlossenen Solarmodule.",
+        "StringYtOffset": "Ertragsversatz String {num}:",
+        "StringYtOffsetHint": "Dieser Offset wird beim Auslesen des Gesamtertragswertes des Wechselrichters angewendet. Damit kann der Gesamtertrag des Wechselrichters auf Null gesetzt werden, wenn ein gebrauchter Wechselrichter verwendet wird.",
         "InverterHint": "*) Geben Sie die W<sub>p</sub> des Ports ein, um die Einstrahlung zu errechnen.",
         "Cancel": "@:maintenancereboot.Cancel",
         "Save": "@:dtuadmin.Save",
diff --git a/webapp/src/locales/en.json b/webapp/src/locales/en.json
index 655a056..cd8bb55 100644
--- a/webapp/src/locales/en.json
+++ b/webapp/src/locales/en.json
@@ -404,6 +404,8 @@
         "StringNameHint": "Here you can specify a custom name for the respective port of your inverter.",
         "StringMaxPower": "Max power string {num}:",
         "StringMaxPowerHint": "Enter the max power of the connected solar panels.",
+        "StringYtOffset": "Yield total offset string {num}:",
+        "StringYtOffsetHint": "This offset is applied the read yield total value from the inverter. This can be used to set the yield total of the inverter to zero if a used inverter is used.",
         "InverterHint": "*) Enter the W<sub>p</sub> of the channel to calculate irradiation.",
         "Cancel": "@:maintenancereboot.Cancel",
         "Save": "@:dtuadmin.Save",
diff --git a/webapp/src/locales/fr.json b/webapp/src/locales/fr.json
index a5ecbc8..f9764a5 100644
--- a/webapp/src/locales/fr.json
+++ b/webapp/src/locales/fr.json
@@ -404,6 +404,8 @@
         "StringNameHint": "Ici, vous pouvez spécifier un nom personnalisé pour le port respectif de votre onduleur.",
         "StringMaxPower": "Puissance maximale de la ligne {num}:",
         "StringMaxPowerHint": "Entrez la puissance maximale des panneaux solaires connectés.",
+        "StringYtOffset": "Yield total offset string {num}:",
+        "StringYtOffsetHint": "This offset is applied the read yield total value from the inverter. This can be used to set the yield total of the inverter to zero if a used inverter is used.",
         "InverterHint": "*) Entrez le W<sub>p</sub> du canal pour calculer l'irradiation.",
         "Cancel": "@:maintenancereboot.Cancel",
         "Save": "@:dtuadmin.Save",
diff --git a/webapp/src/views/InverterAdminView.vue b/webapp/src/views/InverterAdminView.vue
index e5c441e..b30f083 100644
--- a/webapp/src/views/InverterAdminView.vue
+++ b/webapp/src/views/InverterAdminView.vue
@@ -55,7 +55,7 @@
     </BasePage>
 
     <div class="modal" id="inverterEdit" tabindex="-1">
-        <div class="modal-dialog">
+        <div class="modal-dialog modal-lg">
             <div class="modal-content">
                 <div class="modal-header">
                     <h5 class="modal-title">{{ $t('inverteradmin.EditInverter') }}</h5>
@@ -90,7 +90,9 @@
                                         </div>
                                     </div>
                                 </div>
-                                <div class="col-md-5">
+                            </div>
+                            <div class="row g-2">
+                                <div class="col">
                                     <label :for="`inverter-max_${index}`" class="col-form-label">
                                         {{ $t('inverteradmin.StringMaxPower', { num: index + 1 }) }}
                                         <BIconInfoCircle v-tooltip :title="$t('inverteradmin.StringMaxPowerHint')" />
@@ -105,6 +107,21 @@
                                         </div>
                                     </div>
                                 </div>
+                                <div class="col">
+                                    <label :for="`inverter-ytoffset_${index}`" class="col-form-label">
+                                        {{ $t('inverteradmin.StringYtOffset', { num: index + 1 }) }}
+                                        <BIconInfoCircle v-tooltip :title="$t('inverteradmin.StringYtOffsetHint')" />
+                                    </label>
+                                    <div class="d-flex mb-2">
+                                        <div class="input-group">
+                                            <input type="number" class="form-control" :id="`inverter-ytoffset_${index}`"
+                                                min="0" v-model="selectedInverterData.channel[index].yield_total_offset"
+                                                :aria-describedby="`inverter-ytoffsetDescription_${index} inverter-customizer`" />
+                                            <span class="input-group-text"
+                                                :id="`inverter-ytoffsetDescription_${index}`">kWh</span>
+                                        </div>
+                                    </div>
+                                </div>
                             </div>
                         </div>
                         <div :id="`inverter-customizer`" class="form-text" v-html="$t('inverteradmin.InverterHint')">
@@ -163,6 +180,7 @@ import { defineComponent } from 'vue';
 declare interface Channel {
     name: string;
     max_power: number;
+    yield_total_offset: number;
 }
 
 declare interface Inverter {