diff --git a/csharp/App/Backend/DataTypes/Installation.cs b/csharp/App/Backend/DataTypes/Installation.cs
index 0902d74a0..a7fb0fb39 100644
--- a/csharp/App/Backend/DataTypes/Installation.cs
+++ b/csharp/App/Backend/DataTypes/Installation.cs
@@ -60,6 +60,7 @@ public class Installation : TreeNode
     public string PvStringsPerInverter        { get; set; } = "";
     public string InstallationModel           { get; set; } = "";
     public string ExternalEms                { get; set; } = "No";
+    public string CouplingType               { get; set; } = "DC";
 
     [Ignore]
     public String OrderNumbers  { get; set; }
diff --git a/typescript/frontend-marios2/src/content/dashboards/Information/InformationSodistoreHome.tsx b/typescript/frontend-marios2/src/content/dashboards/Information/InformationSodistoreHome.tsx
index a6da44bd0..41e83f26d 100644
--- a/typescript/frontend-marios2/src/content/dashboards/Information/InformationSodistoreHome.tsx
+++ b/typescript/frontend-marios2/src/content/dashboards/Information/InformationSodistoreHome.tsx
@@ -780,6 +780,32 @@ function InformationSodistorehome(props: InformationSodistorehomeProps) {
                       />
                     </div>
 
+                    <div>
+                      <FormControl sx={{ m: 1, width: '50ch' }}>
+                        <InputLabel
+                          shrink
+                          sx={{ fontSize: 14, backgroundColor: 'white', px: 0.5 }}
+                        >
+                          <FormattedMessage id="couplingType" defaultMessage="AC/DC Coupling" />
+                        </InputLabel>
+                        <Select
+                          name="couplingType"
+                          value={formValues.couplingType || 'DC'}
+                          onChange={handleChange}
+                          inputProps={{ readOnly: !canEdit }}
+                          displayEmpty
+                          notched
+                        >
+                          <MenuItem value="AC">
+                            <FormattedMessage id="couplingAC" defaultMessage="AC-coupled" />
+                          </MenuItem>
+                          <MenuItem value="DC">
+                            <FormattedMessage id="couplingDC" defaultMessage="DC-coupled" />
+                          </MenuItem>
+                        </Select>
+                      </FormControl>
+                    </div>
+
                     {isSodistorePro ? (
                     <div>
                       <TextField
diff --git a/typescript/frontend-marios2/src/interfaces/InstallationTypes.tsx b/typescript/frontend-marios2/src/interfaces/InstallationTypes.tsx
index 01f8a3d4c..95f63a9e4 100644
--- a/typescript/frontend-marios2/src/interfaces/InstallationTypes.tsx
+++ b/typescript/frontend-marios2/src/interfaces/InstallationTypes.tsx
@@ -28,6 +28,7 @@ export interface I_Installation extends I_S3Credentials {
   pvStringsPerInverter: string;
   installationModel: string;
   externalEms: string;
+  couplingType: string;
 
   parentId: number;
   s3WriteKey: string;
diff --git a/typescript/frontend-marios2/src/lang/de.json b/typescript/frontend-marios2/src/lang/de.json
index 333a65ef5..47ba8c8b3 100644
--- a/typescript/frontend-marios2/src/lang/de.json
+++ b/typescript/frontend-marios2/src/lang/de.json
@@ -87,6 +87,9 @@
   "emsOther": "Andere",
   "generalInfo": "Allgemeine Informationen",
   "installationSetup": "Installationseinrichtung",
+  "couplingType": "AC/DC-Kopplung",
+  "couplingAC": "AC-gekoppelt",
+  "couplingDC": "DC-gekoppelt",
   "selectModel": "Modell auswählen...",
   "inverterN": "Wechselrichter {n}",
   "clusterN": "Cluster {n}",
diff --git a/typescript/frontend-marios2/src/lang/en.json b/typescript/frontend-marios2/src/lang/en.json
index 44bd3d72a..360584f50 100644
--- a/typescript/frontend-marios2/src/lang/en.json
+++ b/typescript/frontend-marios2/src/lang/en.json
@@ -69,6 +69,9 @@
   "emsOther": "Other",
   "generalInfo": "General Info",
   "installationSetup": "Installation Setup",
+  "couplingType": "AC/DC Coupling",
+  "couplingAC": "AC-coupled",
+  "couplingDC": "DC-coupled",
   "selectModel": "Select model...",
   "inverterN": "Inverter {n}",
   "clusterN": "Cluster {n}",
diff --git a/typescript/frontend-marios2/src/lang/fr.json b/typescript/frontend-marios2/src/lang/fr.json
index 97a5cedf7..349376498 100644
--- a/typescript/frontend-marios2/src/lang/fr.json
+++ b/typescript/frontend-marios2/src/lang/fr.json
@@ -81,6 +81,9 @@
   "emsOther": "Autre",
   "generalInfo": "Informations générales",
   "installationSetup": "Configuration de l'installation",
+  "couplingType": "Couplage AC/DC",
+  "couplingAC": "Couplage AC",
+  "couplingDC": "Couplage DC",
   "selectModel": "Sélectionner le modèle...",
   "inverterN": "Onduleur {n}",
   "clusterN": "Cluster {n}",
diff --git a/typescript/frontend-marios2/src/lang/it.json b/typescript/frontend-marios2/src/lang/it.json
index e68e4696d..eb62c7349 100644
--- a/typescript/frontend-marios2/src/lang/it.json
+++ b/typescript/frontend-marios2/src/lang/it.json
@@ -69,6 +69,9 @@
   "emsOther": "Altro",
   "generalInfo": "Informazioni generali",
   "installationSetup": "Configurazione installazione",
+  "couplingType": "Accoppiamento AC/DC",
+  "couplingAC": "Accoppiamento AC",
+  "couplingDC": "Accoppiamento DC",
   "selectModel": "Seleziona modello...",
   "inverterN": "Inverter {n}",
   "clusterN": "Cluster {n}",