diff --git a/typescript/Frontend/src/App.tsx b/typescript/Frontend/src/App.tsx
index 0df1873f1..e979dfa0c 100644
--- a/typescript/Frontend/src/App.tsx
+++ b/typescript/Frontend/src/App.tsx
@@ -78,7 +78,7 @@ const App = () => {
           bgcolor={colors.greyLight}
           pt={3}
           borderTop="2px solid"
-          borderColor={colors.darkGrey}
+          borderColor={colors.borderColor}
           flex="1 0 auto"
         >
           <Container maxWidth="xl">
diff --git a/typescript/Frontend/src/components/Context/GroupContextProvider.tsx b/typescript/Frontend/src/components/Context/GroupContextProvider.tsx
index 8032ebf48..7d29ca104 100644
--- a/typescript/Frontend/src/components/Context/GroupContextProvider.tsx
+++ b/typescript/Frontend/src/components/Context/GroupContextProvider.tsx
@@ -2,8 +2,9 @@ import { createContext, ReactNode, useCallback, useState } from "react";
 import axiosConfig from "../../config/axiosConfig";
 import { transformArrayToTree } from "../../util/group.util";
 import { I_Folder, I_Installation } from "../../util/types";
+import { AxiosError } from "axios";
 
-interface GroupContextProviderProps {
+interface I_GroupContextProviderProps {
   currentType: string;
   setCurrentType: (value: string) => void;
   data: (I_Folder | I_Installation)[];
@@ -11,10 +12,10 @@ interface GroupContextProviderProps {
   fetchData: () => Promise<void>;
   loading: boolean;
   setLoading: (value: boolean) => void;
-  getError: boolean;
+  getError?: AxiosError;
 }
 
-export const GroupContext = createContext<GroupContextProviderProps>({
+export const GroupContext = createContext<I_GroupContextProviderProps>({
   currentType: "",
   setCurrentType: () => {},
   data: [],
@@ -22,14 +23,14 @@ export const GroupContext = createContext<GroupContextProviderProps>({
   fetchData: () => Promise.resolve(),
   loading: false,
   setLoading: () => {},
-  getError: false,
+  getError: undefined,
 });
 
 const GroupContextProvider = ({ children }: { children: ReactNode }) => {
   const [currentType, setCurrentType] = useState("");
   const [data, setData] = useState<(I_Folder | I_Installation)[]>([]);
   const [loading, setLoading] = useState(false);
-  const [getError, setGetError] = useState(false);
+  const [getError, setGetError] = useState<AxiosError>();
 
   const fetchData = useCallback(async () => {
     setLoading(true);
diff --git a/typescript/Frontend/src/components/Context/InstallationsContextProvider.tsx b/typescript/Frontend/src/components/Context/InstallationsContextProvider.tsx
index 37a74533b..e75462c99 100644
--- a/typescript/Frontend/src/components/Context/InstallationsContextProvider.tsx
+++ b/typescript/Frontend/src/components/Context/InstallationsContextProvider.tsx
@@ -3,7 +3,7 @@ import { createContext, ReactNode, useCallback, useState } from "react";
 import axiosConfig from "../../config/axiosConfig";
 import { I_Installation } from "../../util/types";
 
-interface InstallationContextProviderProps {
+interface I_InstallationContextProviderProps {
   data: I_Installation[];
   setData: (value: I_Installation[]) => void;
   fetchData: () => Promise<void>;
@@ -14,7 +14,7 @@ interface InstallationContextProviderProps {
 }
 
 export const InstallationsContext =
-  createContext<InstallationContextProviderProps>({
+  createContext<I_InstallationContextProviderProps>({
     data: [],
     setData: () => {},
     fetchData: () => Promise.resolve(),
diff --git a/typescript/Frontend/src/components/Context/LogContextProvider.tsx b/typescript/Frontend/src/components/Context/LogContextProvider.tsx
index 6b09c5672..ac7ea4f7d 100644
--- a/typescript/Frontend/src/components/Context/LogContextProvider.tsx
+++ b/typescript/Frontend/src/components/Context/LogContextProvider.tsx
@@ -1,16 +1,16 @@
 import { createContext, ReactNode, useState } from "react";
-import { TreeElement } from "../Installations/Log/CheckboxTree";
+import { I_TreeElement } from "../Installations/Log/CheckboxTree";
 import React from "react";
 
-interface LogContextProviderProps {
-  toggles: TreeElement[] | null;
-  setToggles: (value: TreeElement[]) => void;
+interface I_LogContextProviderProps {
+  toggles: I_TreeElement[] | null;
+  setToggles: (value: I_TreeElement[]) => void;
   checkedToggles: string[];
   setChecked: (newValue: string) => void;
   removeChecked: (value: string) => void;
 }
 
-export const LogContext = createContext<LogContextProviderProps>({
+export const LogContext = createContext<I_LogContextProviderProps>({
   toggles: [],
   setToggles: () => {},
   checkedToggles: [],
@@ -19,7 +19,7 @@ export const LogContext = createContext<LogContextProviderProps>({
 });
 
 const LogContextProvider = ({ children }: { children: ReactNode }) => {
-  const [toggles, setToggles] = useState<TreeElement[] | null>(null);
+  const [toggles, setToggles] = useState<I_TreeElement[] | null>(null);
   const [checkedToggles, setCheckedToggles] = useState<string[]>([]);
 
   const setChecked = (newValue: string) => {
diff --git a/typescript/Frontend/src/components/Context/S3CredentialsContextProvider.tsx b/typescript/Frontend/src/components/Context/S3CredentialsContextProvider.tsx
index bef707611..43902eb19 100644
--- a/typescript/Frontend/src/components/Context/S3CredentialsContextProvider.tsx
+++ b/typescript/Frontend/src/components/Context/S3CredentialsContextProvider.tsx
@@ -1,21 +1,20 @@
 import { createContext, ReactNode, useState } from "react";
-import { I_User } from "../../util/user.util";
-import { I_Installation, S3Credentials } from "../../util/types";
+import { I_S3Credentials } from "../../util/types";
 import { UnixTime } from "../../dataCache/time";
 import { FetchResult } from "../../dataCache/dataCache";
 import { DataRecord } from "../../dataCache/data";
 import { S3Access } from "../../dataCache/S3/S3Access";
 import { parseCsv } from "../../util/graph.util";
 
-interface S3CredentialsContextProviderProps {
-  s3Credentials?: S3Credentials;
-  saveS3Credentials: (credentials: S3Credentials, id: string) => void;
+interface I_S3CredentialsContextProviderProps {
+  s3Credentials?: I_S3Credentials;
+  saveS3Credentials: (credentials: I_S3Credentials, id: string) => void;
   fetchData: (timestamp: UnixTime) => Promise<FetchResult<DataRecord>>;
 }
 
 export const S3CredentialsContext =
-  createContext<S3CredentialsContextProviderProps>({
-    s3Credentials: {} as S3Credentials,
+  createContext<I_S3CredentialsContextProviderProps>({
+    s3Credentials: {} as I_S3Credentials,
     saveS3Credentials: () => {},
     fetchData: () => ({} as Promise<FetchResult<DataRecord>>),
   });
@@ -25,9 +24,9 @@ const S3CredentialsContextProvider = ({
 }: {
   children: ReactNode;
 }) => {
-  const [s3Credentials, setS3Credentials] = useState<S3Credentials>();
+  const [s3Credentials, setS3Credentials] = useState<I_S3Credentials>();
 
-  const saveS3Credentials = (credentials: S3Credentials, id: string) => {
+  const saveS3Credentials = (credentials: I_S3Credentials, id: string) => {
     const s3Bucket = id + "-3e5b3069-214a-43ee-8d85-57d72000c19d";
     setS3Credentials({ s3Bucket, ...credentials });
   };
diff --git a/typescript/Frontend/src/components/Context/UserContextProvider.tsx b/typescript/Frontend/src/components/Context/UserContextProvider.tsx
index 6b9f35adb..2a1ea29b5 100644
--- a/typescript/Frontend/src/components/Context/UserContextProvider.tsx
+++ b/typescript/Frontend/src/components/Context/UserContextProvider.tsx
@@ -1,14 +1,14 @@
 import { createContext, ReactNode, useState } from "react";
 import { I_User } from "../../util/user.util";
 
-interface InstallationContextProviderProps {
+interface I_InstallationContextProviderProps {
   currentUser?: I_User;
   setCurrentUser: (value: I_User) => void;
   saveCurrentUser: (user: I_User) => void;
   getCurrentUser: () => I_User;
 }
 
-export const UserContext = createContext<InstallationContextProviderProps>({
+export const UserContext = createContext<I_InstallationContextProviderProps>({
   currentUser: {} as I_User,
   setCurrentUser: () => {},
   saveCurrentUser: () => {},
diff --git a/typescript/Frontend/src/components/Context/UsersContextProvider.tsx b/typescript/Frontend/src/components/Context/UsersContextProvider.tsx
index 9952b2b7d..b6fce138c 100644
--- a/typescript/Frontend/src/components/Context/UsersContextProvider.tsx
+++ b/typescript/Frontend/src/components/Context/UsersContextProvider.tsx
@@ -8,14 +8,14 @@ import {
 } from "react";
 import { useParams } from "react-router-dom";
 import axiosConfig from "../../config/axiosConfig";
-import { I_User, UserWithInheritedAccess } from "../../util/user.util";
+import { I_User, I_UserWithInheritedAccess } from "../../util/user.util";
 import { GroupContext } from "./GroupContextProvider";
 
-interface UsersContextProviderProps {
+interface I_UsersContextProviderProps {
   directAccessUsers: I_User[];
   setDirectAccessUsers: (value: I_User[]) => void;
-  inheritedAccessUsers: UserWithInheritedAccess[];
-  setInheritedAccessUsers: (value: UserWithInheritedAccess[]) => void;
+  inheritedAccessUsers: I_UserWithInheritedAccess[];
+  setInheritedAccessUsers: (value: I_UserWithInheritedAccess[]) => void;
   availableUsers: I_User[];
   setAvailableUsers: (value: I_User[]) => void;
   getAvailableUsersForResource: () => I_User[];
@@ -24,7 +24,7 @@ interface UsersContextProviderProps {
   fetchAvailableUsers: () => Promise<void>;
 }
 
-export const UsersContext = createContext<UsersContextProviderProps>({
+export const UsersContext = createContext<I_UsersContextProviderProps>({
   directAccessUsers: [],
   setDirectAccessUsers: () => {},
   inheritedAccessUsers: [],
@@ -48,7 +48,7 @@ export const UsersContext = createContext<UsersContextProviderProps>({
 const UsersContextProvider = ({ children }: { children: ReactNode }) => {
   const [directAccessUsers, setDirectAccessUsers] = useState<I_User[]>([]);
   const [inheritedAccessUsers, setInheritedAccessUsers] = useState<
-    UserWithInheritedAccess[]
+    I_UserWithInheritedAccess[]
   >([]);
   const [availableUsers, setAvailableUsers] = useState<I_User[]>([]);
 
diff --git a/typescript/Frontend/src/components/Groups/AccessManagement/UsersWithInheritedAccess.tsx b/typescript/Frontend/src/components/Groups/AccessManagement/UsersWithInheritedAccess.tsx
index 94b2c9827..b22301e9d 100644
--- a/typescript/Frontend/src/components/Groups/AccessManagement/UsersWithInheritedAccess.tsx
+++ b/typescript/Frontend/src/components/Groups/AccessManagement/UsersWithInheritedAccess.tsx
@@ -10,7 +10,7 @@ import { Fragment, useContext, useEffect } from "react";
 import { Link } from "react-router-dom";
 import {
   filterDuplicateUsers,
-  UserWithInheritedAccess,
+  I_UserWithInheritedAccess,
 } from "../../../util/user.util";
 import routes from "../../../routes.json";
 import PersonIcon from "@mui/icons-material/Person";
@@ -29,7 +29,7 @@ const UsersWithInheritedAccess = () => {
     return (
       <>
         {filterDuplicateUsers(inheritedAccessUsers).map(
-          ({ user, folderName }: UserWithInheritedAccess) => {
+          ({ user, folderName }: I_UserWithInheritedAccess) => {
             return (
               <Fragment key={user.id}>
                 <ListItem id={"inherited-access-user-list-item" + user.id}>
diff --git a/typescript/Frontend/src/components/Groups/AddNewButtons.tsx b/typescript/Frontend/src/components/Groups/AddNewButtons.tsx
index a4522e34a..19f549ab4 100644
--- a/typescript/Frontend/src/components/Groups/AddNewButtons.tsx
+++ b/typescript/Frontend/src/components/Groups/AddNewButtons.tsx
@@ -1,5 +1,4 @@
-import { useState } from "react";
-import { FormattedMessage, useIntl } from "react-intl";
+import { FormattedMessage } from "react-intl";
 import axiosConfig from "../../config/axiosConfig";
 import { I_Folder, I_Installation } from "../../util/types";
 import FolderForm from "./Detail/FolderForm";
diff --git a/typescript/Frontend/src/components/Groups/AddNewDialog.tsx b/typescript/Frontend/src/components/Groups/AddNewDialog.tsx
index 9c3efadda..0de1f9e58 100644
--- a/typescript/Frontend/src/components/Groups/AddNewDialog.tsx
+++ b/typescript/Frontend/src/components/Groups/AddNewDialog.tsx
@@ -5,13 +5,13 @@ import CloseIcon from "@mui/icons-material/Close";
 import { ReactNode, useState } from "react";
 import InnovenergyButton from "../Layout/InnovenergyButton";
 
-interface AddNewDialogProps {
+interface I_AddNewDialogProps {
   form: ReactNode;
   message: ReactNode;
   id: number;
 }
 
-const AddNewDialog = (props: AddNewDialogProps) => {
+const AddNewDialog = (props: I_AddNewDialogProps) => {
   const { form, id, message } = props;
   const [open, setOpen] = useState(false);
   const intl = useIntl();
diff --git a/typescript/Frontend/src/components/Groups/Detail/Folder.tsx b/typescript/Frontend/src/components/Groups/Detail/Folder.tsx
index fdbc87c92..3666411d9 100644
--- a/typescript/Frontend/src/components/Groups/Detail/Folder.tsx
+++ b/typescript/Frontend/src/components/Groups/Detail/Folder.tsx
@@ -53,7 +53,6 @@ const Folder = () => {
             borderBottomLeftRadius: 4,
             borderBottomRightRadius: 4,
             borderColor: theme.palette.text.disabled,
-            marginTop: 0.05,
           }}
         >
           <FolderForm
diff --git a/typescript/Frontend/src/components/Groups/Detail/MoveDialog.tsx b/typescript/Frontend/src/components/Groups/Detail/MoveDialog.tsx
index 650dc2937..0e68ba542 100644
--- a/typescript/Frontend/src/components/Groups/Detail/MoveDialog.tsx
+++ b/typescript/Frontend/src/components/Groups/Detail/MoveDialog.tsx
@@ -9,11 +9,11 @@ import { GroupContext } from "../../Context/GroupContextProvider";
 import InnovenergyButton from "../../Layout/InnovenergyButton";
 import MoveTree from "./MoveTree";
 
-interface MoveDialogProps {
+interface I_MoveDialogProps {
   values: I_Folder;
 }
 
-const MoveDialog = (props: MoveDialogProps) => {
+const MoveDialog = (props: I_MoveDialogProps) => {
   const { values } = props;
 
   const [open, setOpen] = useState(false);
diff --git a/typescript/Frontend/src/components/Groups/Detail/MoveTree.tsx b/typescript/Frontend/src/components/Groups/Detail/MoveTree.tsx
index 4210f339f..762f087fa 100644
--- a/typescript/Frontend/src/components/Groups/Detail/MoveTree.tsx
+++ b/typescript/Frontend/src/components/Groups/Detail/MoveTree.tsx
@@ -8,12 +8,12 @@ import { instanceOfFolder } from "../../../util/group.util";
 import { useIntl } from "react-intl";
 import InnovenergyTreeItem from "../../Layout/InnovenergyTreeItem";
 
-interface MoveTreeProps {
+interface I_MoveTreeProps {
   setSelectedParentId: (value: number) => void;
   parentId: number;
 }
 
-const MoveTree = (props: MoveTreeProps) => {
+const MoveTree = (props: I_MoveTreeProps) => {
   const { data } = useContext(GroupContext);
   const intl = useIntl();
 
diff --git a/typescript/Frontend/src/components/Groups/GroupTabs.tsx b/typescript/Frontend/src/components/Groups/GroupTabs.tsx
index 9e1ec6d73..f17eb01bb 100644
--- a/typescript/Frontend/src/components/Groups/GroupTabs.tsx
+++ b/typescript/Frontend/src/components/Groups/GroupTabs.tsx
@@ -22,6 +22,8 @@ const GroupTabs = () => {
 
   const id = routeMatch?.params?.id;
 
+  console.log("fuck", routeMatch?.pattern?.path, currentType);
+
   if (id) {
     return (
       <Box sx={{ width: "100%" }}>
diff --git a/typescript/Frontend/src/components/Groups/GroupTree.tsx b/typescript/Frontend/src/components/Groups/GroupTree.tsx
index 4c2084fbb..e60a86f4b 100644
--- a/typescript/Frontend/src/components/Groups/GroupTree.tsx
+++ b/typescript/Frontend/src/components/Groups/GroupTree.tsx
@@ -1,19 +1,20 @@
 import TreeView from "@mui/lab/TreeView";
 import ExpandMoreIcon from "@mui/icons-material/ExpandMore";
 import ChevronRightIcon from "@mui/icons-material/ChevronRight";
-import { ReactNode, useContext, useEffect, useState } from "react";
+import React, { ReactNode, useContext, useEffect, useState } from "react";
 import { I_Folder, I_Installation } from "../../util/types";
 import { Link } from "react-router-dom";
 import routes from "../../routes.json";
 import { GroupContext } from "../Context/GroupContextProvider";
 import { instanceOfFolder } from "../../util/group.util";
-import { Grid, CircularProgress, useTheme } from "@mui/material";
+import { Grid, CircularProgress, useTheme, Alert } from "@mui/material";
 import { useIntl } from "react-intl";
 import InnovenergyTreeItem from "../Layout/InnovenergyTreeItem";
 import TypeIcon from "./TypeIcon";
 
 const GroupTree = () => {
-  const { setCurrentType, fetchData, data, loading } = useContext(GroupContext);
+  const { setCurrentType, fetchData, data, loading, getError } =
+    useContext(GroupContext);
   const [openNodes, setOpenNodes] = useState<string[]>([]);
   const [selected, setSelected] = useState<string>("");
   const intl = useIntl();
@@ -56,7 +57,11 @@ const GroupTree = () => {
                 <TypeIcon type={element.type} /> {element.name}
               </>
             }
-            onClick={() => setCurrentType(element.type)}
+            onClick={() => {
+              console.log("fuck", element.type);
+              setCurrentType(element.type);
+            }}
+            sx={{ ".MuiTreeItem-label": { display: "flex" } }}
           >
             {getNodes(element)}
           </InnovenergyTreeItem>
@@ -100,6 +105,8 @@ const GroupTree = () => {
         {renderTree(data)}
       </TreeView>
     );
+  } else if (getError) {
+    return <Alert severity="error">{getError.message} </Alert>;
   }
   return null;
 };
diff --git a/typescript/Frontend/src/components/Groups/TypeIcon.tsx b/typescript/Frontend/src/components/Groups/TypeIcon.tsx
index bf8fb7397..bf4b42ce4 100644
--- a/typescript/Frontend/src/components/Groups/TypeIcon.tsx
+++ b/typescript/Frontend/src/components/Groups/TypeIcon.tsx
@@ -1,11 +1,11 @@
 import FolderIcon from "@mui/icons-material/Folder";
 import InsertDriveFileIcon from "@mui/icons-material/InsertDriveFile";
 
-interface TypeIconProps {
+interface I_TypeIconProps {
   type: string | undefined;
 }
 
-const TypeIcon = (props: TypeIconProps) => {
+const TypeIcon = (props: I_TypeIconProps) => {
   return (
     <>
       {props.type === "Folder" ? (
diff --git a/typescript/Frontend/src/components/Installations/Detail/Installation.tsx b/typescript/Frontend/src/components/Installations/Detail/Installation.tsx
index f620b342b..008556738 100644
--- a/typescript/Frontend/src/components/Installations/Detail/Installation.tsx
+++ b/typescript/Frontend/src/components/Installations/Detail/Installation.tsx
@@ -1,12 +1,9 @@
 import { Alert, Box, CircularProgress, useTheme } from "@mui/material";
 import { AxiosError } from "axios";
-import { useContext, useEffect, useState } from "react";
 import { useParams } from "react-router-dom";
 import axiosConfig from "../../../config/axiosConfig";
 import { I_Folder, I_Installation } from "../../../util/types";
 import InstallationForm from "./InstallationForm";
-import { colors } from "../../../index";
-import { S3CredentialsContext } from "../../Context/S3CredentialsContextProvider";
 import MoveDialog from "../../Groups/Detail/MoveDialog";
 
 interface I_InstallationProps {
@@ -46,7 +43,7 @@ const Installation = (props: I_InstallationProps) => {
         <InstallationForm
           values={values}
           handleSubmit={handleSubmit}
-          additionalButtons={props.hasMoveButton ? [moveDialog] : []}
+          additionalButtons={props.hasMoveButton ? [moveDialog] : undefined}
         />
         <Box>
           {values.s3WriteKey && <div>{`Write key: ${values.s3WriteKey}`}</div>}
diff --git a/typescript/Frontend/src/components/Installations/Detail/InstallationForm.tsx b/typescript/Frontend/src/components/Installations/Detail/InstallationForm.tsx
index fd3c7ecd7..afe2dcde6 100644
--- a/typescript/Frontend/src/components/Installations/Detail/InstallationForm.tsx
+++ b/typescript/Frontend/src/components/Installations/Detail/InstallationForm.tsx
@@ -8,8 +8,9 @@ import InnovenergyButton from "../../Layout/InnovenergyButton";
 import { I_InnovenergyTextfieldProps } from "../../Layout/InnovenergyTextfield";
 import { UserContext } from "../../Context/UserContextProvider";
 import * as Yup from "yup";
-import { AxiosResponse } from "axios";
+import { AxiosError, AxiosResponse } from "axios";
 import InnovenergyPropertyGrid from "../../Layout/InnovenergyPropertyGrid";
+import { GroupContext } from "../../Context/GroupContextProvider";
 
 interface I_InstallationFormProps {
   values: I_Installation;
@@ -23,8 +24,11 @@ interface I_InstallationFormProps {
 const InstallationForm = (props: I_InstallationFormProps) => {
   const { values, additionalButtons, handleSubmit } = props;
   const [open, setOpen] = useState(false);
+  const [error, setError] = useState<AxiosError>();
+
+  const { fetchData: fetchInstallations } = useContext(InstallationsContext);
+  const { fetchData: fetchGroups } = useContext(GroupContext);
 
-  const { fetchData } = useContext(InstallationsContext);
   const { getCurrentUser } = useContext(UserContext);
 
   const readOnly = !getCurrentUser().hasWriteAccess;
@@ -62,9 +66,16 @@ const InstallationForm = (props: I_InstallationFormProps) => {
     onSubmit: (formikValues) => {
       handleSubmit(values, formikValues)
         .then(() => {
-          fetchData();
+          setOpen(true);
+          console.log(additionalButtons, "addbuttons");
+          additionalButtons && additionalButtons.length > 0
+            ? fetchGroups()
+            : fetchInstallations();
         })
-        .catch((err) => {});
+        .catch((err) => {
+          setError(err);
+          setOpen(true);
+        });
     },
     validationSchema,
   });
@@ -171,10 +182,14 @@ const InstallationForm = (props: I_InstallationFormProps) => {
         onClose={handleClose}
       >
         <Alert onClose={handleClose} severity="success" sx={{ width: "100%" }}>
-          <FormattedMessage
-            id="updatedSuccessfully"
-            defaultMessage="Updated successfully"
-          />
+          {error ? (
+            error.message
+          ) : (
+            <FormattedMessage
+              id="updatedSuccessfully"
+              defaultMessage="Updated successfully"
+            />
+          )}
         </Alert>
       </Snackbar>
     </form>
diff --git a/typescript/Frontend/src/components/Installations/Installations.tsx b/typescript/Frontend/src/components/Installations/Installations.tsx
index e77417de0..2548e345c 100644
--- a/typescript/Frontend/src/components/Installations/Installations.tsx
+++ b/typescript/Frontend/src/components/Installations/Installations.tsx
@@ -1,4 +1,4 @@
-import { Grid, colors } from "@mui/material";
+import { Grid } from "@mui/material";
 import { Routes, Route } from "react-router";
 import LiveView from "./LiveView/LiveView";
 import InstallationTabs from "./InstallationTabs";
diff --git a/typescript/Frontend/src/components/Installations/LiveView/LiveView.tsx b/typescript/Frontend/src/components/Installations/LiveView/LiveView.tsx
index 92fde3f08..f02f6c135 100644
--- a/typescript/Frontend/src/components/Installations/LiveView/LiveView.tsx
+++ b/typescript/Frontend/src/components/Installations/LiveView/LiveView.tsx
@@ -1,6 +1,5 @@
 import TopologyView from "./TopologyView";
 import { Box, useTheme } from "@mui/material";
-import { colors } from "../../../index";
 
 const LiveView = () => {
   const theme = useTheme();
diff --git a/typescript/Frontend/src/components/Installations/LiveView/TopologyBox.tsx b/typescript/Frontend/src/components/Installations/LiveView/TopologyBox.tsx
index 15167c646..ae1c56f9d 100644
--- a/typescript/Frontend/src/components/Installations/LiveView/TopologyBox.tsx
+++ b/typescript/Frontend/src/components/Installations/LiveView/TopologyBox.tsx
@@ -1,14 +1,14 @@
 import { Box } from "@mui/material";
 import { getBoxColor } from "../../../util/graph.util";
 
-export interface BoxDataValue {
+export interface I_BoxDataValue {
   unit: string;
   value: string | number;
 }
 
 export type BoxData = {
   label: string;
-  values: BoxDataValue[];
+  values: I_BoxDataValue[];
 };
 
 export type TopologyBoxProps = {
diff --git a/typescript/Frontend/src/components/Installations/LiveView/TopologyView.tsx b/typescript/Frontend/src/components/Installations/LiveView/TopologyView.tsx
index 93447ad96..797cff57f 100644
--- a/typescript/Frontend/src/components/Installations/LiveView/TopologyView.tsx
+++ b/typescript/Frontend/src/components/Installations/LiveView/TopologyView.tsx
@@ -1,4 +1,4 @@
-import { Alert, Box, useTheme } from "@mui/material";
+import { Alert, Box } from "@mui/material";
 import TopologyColumn from "./TopologyColumn";
 import { TimeSpan, UnixTime } from "../../../dataCache/time";
 import {
@@ -224,7 +224,6 @@ const TopologyView = () => {
       />
     </Alert>
   );
-  return <div>TopologyView</div>;
 };
 
 export default TopologyView;
diff --git a/typescript/Frontend/src/components/Installations/Log/CheckboxTree.tsx b/typescript/Frontend/src/components/Installations/Log/CheckboxTree.tsx
index fe43470ca..52a7b9b96 100644
--- a/typescript/Frontend/src/components/Installations/Log/CheckboxTree.tsx
+++ b/typescript/Frontend/src/components/Installations/Log/CheckboxTree.tsx
@@ -9,10 +9,10 @@ import routes from "../../../routes.json";
 import React from "react";
 import InnovenergyTreeItem from "../../Layout/InnovenergyTreeItem";
 
-export interface TreeElement {
+export interface I_TreeElement {
   id: string;
   name: string;
-  children: TreeElement[];
+  children: I_TreeElement[];
   checked?: boolean;
 }
 
@@ -23,13 +23,13 @@ const CheckboxTree = () => {
     routes.installations + routes.list + routes.log + ":id",
   ]);
 
-  const getNodes = (element: TreeElement): null | ReactNode => {
+  const getNodes = (element: I_TreeElement): null | ReactNode => {
     return element.children.length > 0 ? renderTree(element.children) : null;
   };
 
   const handleClick = (
     event: React.MouseEvent<HTMLButtonElement, MouseEvent>,
-    element: TreeElement,
+    element: I_TreeElement,
     checked?: string
   ) => {
     if (checked) {
@@ -46,7 +46,7 @@ const CheckboxTree = () => {
     event.stopPropagation();
   };
 
-  const renderTree = (data: TreeElement[]): ReactNode => {
+  const renderTree = (data: I_TreeElement[]): ReactNode => {
     return data.map((element) => {
       const checked = checkedToggles.find((toggle) => element.id === toggle);
       const splitName = element.name.split("/");
diff --git a/typescript/Frontend/src/components/Installations/Log/DatePicker/DateRangePicker.tsx b/typescript/Frontend/src/components/Installations/Log/DatePicker/DateRangePicker.tsx
index 61338af1c..ee562ced1 100644
--- a/typescript/Frontend/src/components/Installations/Log/DatePicker/DateRangePicker.tsx
+++ b/typescript/Frontend/src/components/Installations/Log/DatePicker/DateRangePicker.tsx
@@ -9,13 +9,13 @@ import { useTheme } from "@mui/material";
 import { colors } from "../../../../index";
 import ShortcutButton from "./ShortcutButton";
 
-interface DateRangePickerProps {
+interface I_DateRangePickerProps {
   setRange: (value: Date[]) => void;
   range: Date[];
   getCacheSeries: (xaxisRange0: Date, xaxisRange1: Date) => void;
 }
 
-const DateRangePicker = (props: DateRangePickerProps) => {
+const DateRangePicker = (props: I_DateRangePickerProps) => {
   const { setRange, range, getCacheSeries } = props;
   const theme = useTheme();
 
diff --git a/typescript/Frontend/src/components/Installations/Log/DatePicker/ShortcutButton.tsx b/typescript/Frontend/src/components/Installations/Log/DatePicker/ShortcutButton.tsx
index b34147905..c4d4b2a41 100644
--- a/typescript/Frontend/src/components/Installations/Log/DatePicker/ShortcutButton.tsx
+++ b/typescript/Frontend/src/components/Installations/Log/DatePicker/ShortcutButton.tsx
@@ -2,14 +2,14 @@ import { UnixTime, TimeSpan } from "../../../../dataCache/time";
 import { createTimes } from "../../../../util/graph.util";
 import InnovenergyButton from "../../../Layout/InnovenergyButton";
 
-interface ShortcutButtonProps {
+interface I_ShortcutButtonProps {
   setRange: (value: Date[]) => void;
   getCacheSeries: (xaxisRange0: Date, xaxisRange1: Date) => void;
   dayRange: number;
   children?: React.ReactNode;
 }
 
-const ShortcutButton = (props: ShortcutButtonProps) => {
+const ShortcutButton = (props: I_ShortcutButtonProps) => {
   return (
     <InnovenergyButton
       onClick={() => {
diff --git a/typescript/Frontend/src/components/Installations/Log/ScalarGraph.tsx b/typescript/Frontend/src/components/Installations/Log/ScalarGraph.tsx
index a0d024f39..c266e4c9c 100644
--- a/typescript/Frontend/src/components/Installations/Log/ScalarGraph.tsx
+++ b/typescript/Frontend/src/components/Installations/Log/ScalarGraph.tsx
@@ -1,7 +1,7 @@
 import Plot from "react-plotly.js";
 import { RecordSeries } from "../../../dataCache/data";
 import {
-  GraphData,
+  I_GraphData,
   createTimes,
   getTreeElements,
   isNumeric,
@@ -11,15 +11,15 @@ import {
 import { TimeRange, TimeSpan, UnixTime } from "../../../dataCache/time";
 import { useCallback, useContext, useEffect, useMemo, useState } from "react";
 import { BehaviorSubject, startWith, throttleTime, withLatestFrom } from "rxjs";
-import DataCache, { FetchResult } from "../../../dataCache/dataCache";
+import DataCache from "../../../dataCache/dataCache";
 import { LogContext } from "../../Context/LogContextProvider";
 import { isDefined } from "../../../dataCache/utils/maybe";
-import { Data, Icons, Layout, PlotRelayoutEvent } from "plotly.js";
+import { Data, Layout, PlotRelayoutEvent } from "plotly.js";
 import { AdapterDayjs } from "@mui/x-date-pickers/AdapterDayjs";
 import { FormattedMessage } from "react-intl";
 import DateRangePicker from "./DatePicker/DateRangePicker";
 import { LocalizationProvider } from "@mui/x-date-pickers";
-import { Alert, useTheme } from "@mui/material";
+import { Alert } from "@mui/material";
 import { S3CredentialsContext } from "../../Context/S3CredentialsContextProvider";
 
 const NUMBER_OF_NODES = 100;
@@ -66,7 +66,7 @@ const ScalarGraph = () => {
     return () => subscription.unsubscribe();
   }, [toggles]);
 
-  const transformToGraphData = (input: RecordSeries): GraphData => {
+  const transformToGraphData = (input: RecordSeries): I_GraphData => {
     const transformedObject: any = {};
 
     input.forEach((item) => {
@@ -101,7 +101,7 @@ const ScalarGraph = () => {
               y: [],
             },
           }),
-          {} as GraphData
+          {} as I_GraphData
         );
   };
 
diff --git a/typescript/Frontend/src/components/Layout/InnovenergyButton.tsx b/typescript/Frontend/src/components/Layout/InnovenergyButton.tsx
index dfbff7637..9e656d632 100644
--- a/typescript/Frontend/src/components/Layout/InnovenergyButton.tsx
+++ b/typescript/Frontend/src/components/Layout/InnovenergyButton.tsx
@@ -1,4 +1,4 @@
-import { Button, SxProps, Theme, colors, useTheme } from "@mui/material";
+import { Button, SxProps, Theme, useTheme } from "@mui/material";
 import { ReactNode } from "react";
 
 interface I_InnovenergyButtonProps {
diff --git a/typescript/Frontend/src/components/Layout/InnovenergyList.tsx b/typescript/Frontend/src/components/Layout/InnovenergyList.tsx
index d0c67bb0a..b44678572 100644
--- a/typescript/Frontend/src/components/Layout/InnovenergyList.tsx
+++ b/typescript/Frontend/src/components/Layout/InnovenergyList.tsx
@@ -1,12 +1,12 @@
 import { List, useTheme } from "@mui/material";
 import { ReactNode } from "react";
 
-interface InnovenergyListProps {
+interface I_InnovenergyListProps {
   id: string;
   children: ReactNode;
 }
 
-const InnovenergyList = (props: InnovenergyListProps) => {
+const InnovenergyList = (props: I_InnovenergyListProps) => {
   const theme = useTheme();
   return (
     <List
diff --git a/typescript/Frontend/src/components/Layout/InnovenergyPropertyGrid.tsx b/typescript/Frontend/src/components/Layout/InnovenergyPropertyGrid.tsx
index a4b49e33b..8e12272ff 100644
--- a/typescript/Frontend/src/components/Layout/InnovenergyPropertyGrid.tsx
+++ b/typescript/Frontend/src/components/Layout/InnovenergyPropertyGrid.tsx
@@ -2,12 +2,12 @@ import { InputLabel, TextField } from "@mui/material";
 import { colors } from "../../index";
 import { I_InnovenergyTextfieldProps } from "./InnovenergyTextfield";
 
-interface InnovenergyPropertyGridProps {
+interface I_InnovenergyPropertyGridProps {
   rows: I_InnovenergyTextfieldProps[];
 }
 
 export const InnovenergyPropertyGrid = (
-  props: InnovenergyPropertyGridProps
+  props: I_InnovenergyPropertyGridProps
 ) => {
   return (
     <div style={{ display: "flex", flexDirection: "row" }}>
diff --git a/typescript/Frontend/src/components/Layout/InnovenergySnackbar.tsx b/typescript/Frontend/src/components/Layout/InnovenergySnackbar.tsx
index 10718d0d7..bb09aaa3e 100644
--- a/typescript/Frontend/src/components/Layout/InnovenergySnackbar.tsx
+++ b/typescript/Frontend/src/components/Layout/InnovenergySnackbar.tsx
@@ -1,13 +1,13 @@
 import { Alert, Snackbar } from "@mui/material";
 import { FormattedMessage } from "react-intl";
 
-interface InnovenergySnackbarProps {
+interface I_InnovenergySnackbarProps {
   open: boolean;
   setOpen: (value: boolean) => void;
   error?: any;
 }
 
-const InnovenergySnackbar = (props: InnovenergySnackbarProps) => {
+const InnovenergySnackbar = (props: I_InnovenergySnackbarProps) => {
   const { open, setOpen, error } = props;
 
   const handleClose = () => {
diff --git a/typescript/Frontend/src/components/Layout/InnovenergyTabs.tsx b/typescript/Frontend/src/components/Layout/InnovenergyTabs.tsx
index 17b70ce73..1960e0637 100644
--- a/typescript/Frontend/src/components/Layout/InnovenergyTabs.tsx
+++ b/typescript/Frontend/src/components/Layout/InnovenergyTabs.tsx
@@ -1,15 +1,15 @@
-import { SxProps, Tabs, useTheme } from "@mui/material";
+import { Tabs, useTheme } from "@mui/material";
 import { ReactNode } from "react";
 import { colors } from "index";
 
-interface AntTabsProps {
+interface I_AntTabsProps {
   id: string;
   value?: string;
   sx?: any;
   children: ReactNode;
 }
 
-const InnovenergyTabs = (props: AntTabsProps) => {
+const InnovenergyTabs = (props: I_AntTabsProps) => {
   const theme = useTheme();
   return (
     <Tabs
diff --git a/typescript/Frontend/src/components/Layout/InnovenergyTreeItem.tsx b/typescript/Frontend/src/components/Layout/InnovenergyTreeItem.tsx
index a66bd7b1b..5f36b6c1c 100644
--- a/typescript/Frontend/src/components/Layout/InnovenergyTreeItem.tsx
+++ b/typescript/Frontend/src/components/Layout/InnovenergyTreeItem.tsx
@@ -9,7 +9,7 @@ const InnovenergyTreeItem = (props: TreeItemProps) => {
       id={props.id}
       nodeId={props.nodeId}
       label={props.label}
-      onClick={() => props.onClick}
+      onClick={props.onClick}
       sx={{
         ".MuiTreeItem-content": {
           py: "10px",
@@ -30,6 +30,7 @@ const InnovenergyTreeItem = (props: TreeItemProps) => {
         },
         borderRadius: "4px",
         bgcolor: colors.greyDark,
+        ...props.sx,
       }}
     >
       {props.children}
diff --git a/typescript/Frontend/src/components/Layout/LanguageSelect.tsx b/typescript/Frontend/src/components/Layout/LanguageSelect.tsx
index c998b8c11..e3bcdd8e0 100644
--- a/typescript/Frontend/src/components/Layout/LanguageSelect.tsx
+++ b/typescript/Frontend/src/components/Layout/LanguageSelect.tsx
@@ -1,12 +1,12 @@
 import { MenuItem, Select } from "@mui/material";
 import { FormattedMessage } from "react-intl";
 
-interface LanguageSelectProps {
+interface I_LanguageSelectProps {
   language: string;
   setLanguage: (language: string) => void;
 }
 
-const LanguageSelect = (props: LanguageSelectProps) => {
+const LanguageSelect = (props: I_LanguageSelectProps) => {
   return (
     <Select
       color="secondary"
diff --git a/typescript/Frontend/src/components/Layout/LogoutButton.tsx b/typescript/Frontend/src/components/Layout/LogoutButton.tsx
index ff087a072..cf774a2c3 100644
--- a/typescript/Frontend/src/components/Layout/LogoutButton.tsx
+++ b/typescript/Frontend/src/components/Layout/LogoutButton.tsx
@@ -4,11 +4,11 @@ import axiosConfig from "../../config/axiosConfig";
 import InnovenergyButton from "./InnovenergyButton";
 import { useTheme } from "@mui/material";
 
-interface LogoutButtonProps {
+interface I_LogoutButtonProps {
   removeToken: () => void;
 }
 
-const LogoutButton = (props: LogoutButtonProps) => {
+const LogoutButton = (props: I_LogoutButtonProps) => {
   const navigate = useNavigate();
   const theme = useTheme();
 
diff --git a/typescript/Frontend/src/components/Layout/NavigationTabs.tsx b/typescript/Frontend/src/components/Layout/NavigationTabs.tsx
index a517ab374..b74f31a0d 100644
--- a/typescript/Frontend/src/components/Layout/NavigationTabs.tsx
+++ b/typescript/Frontend/src/components/Layout/NavigationTabs.tsx
@@ -1,4 +1,4 @@
-import { FormattedMessage, useIntl } from "react-intl";
+import { FormattedMessage } from "react-intl";
 import { Link } from "react-router-dom";
 import useRouteMatch from "../../hooks/useRouteMatch";
 import routes from "../../routes.json";
diff --git a/typescript/Frontend/src/components/Layout/Search.tsx b/typescript/Frontend/src/components/Layout/Search.tsx
index 851d0042f..d4ab46b78 100644
--- a/typescript/Frontend/src/components/Layout/Search.tsx
+++ b/typescript/Frontend/src/components/Layout/Search.tsx
@@ -2,7 +2,6 @@ import {
   OutlinedInputProps,
   TextField,
   TextFieldProps,
-  alpha,
   styled,
   useTheme,
 } from "@mui/material";
@@ -10,7 +9,7 @@ import { colors } from "index";
 import { FC, useState } from "react";
 import { useIntl } from "react-intl";
 
-interface SearchSidebarProps {
+interface I_SearchSidebarProps {
   listComponent: FC<{ searchQuery: string }>;
   id: string;
   height?: string;
@@ -45,11 +44,10 @@ const SearchInputTextfield = styled((props: TextFieldProps) => (
   },
 }));
 
-const SearchSidebar = (props: SearchSidebarProps) => {
+const SearchSidebar = (props: I_SearchSidebarProps) => {
   const { listComponent: ListComponent, id, height } = props;
   const [searchQuery, setSearchQuery] = useState("");
   const intl = useIntl();
-  const theme = useTheme();
 
   return (
     <div style={{ height: height ?? "750px", overflow: "hidden" }}>
diff --git a/typescript/Frontend/src/components/Users/AddUser.tsx b/typescript/Frontend/src/components/Users/AddUser.tsx
index d6d463b32..67417cb7e 100644
--- a/typescript/Frontend/src/components/Users/AddUser.tsx
+++ b/typescript/Frontend/src/components/Users/AddUser.tsx
@@ -1,10 +1,4 @@
-import {
-  Dialog,
-  DialogTitle,
-  IconButton,
-  DialogContent,
-  colors,
-} from "@mui/material";
+import { Dialog, DialogTitle, IconButton, DialogContent } from "@mui/material";
 import { useState } from "react";
 import { FormattedMessage, useIntl } from "react-intl";
 import axiosConfig from "../../config/axiosConfig";
diff --git a/typescript/Frontend/src/components/Users/User.tsx b/typescript/Frontend/src/components/Users/User.tsx
index debb6787d..ed63e3d8e 100644
--- a/typescript/Frontend/src/components/Users/User.tsx
+++ b/typescript/Frontend/src/components/Users/User.tsx
@@ -1,10 +1,4 @@
-import {
-  Box,
-  CircularProgress,
-  Alert,
-  collapseClasses,
-  useTheme,
-} from "@mui/material";
+import { Box, CircularProgress, Alert, useTheme } from "@mui/material";
 import { AxiosError } from "axios";
 import { useState, useEffect } from "react";
 import { useParams } from "react-router-dom";
diff --git a/typescript/Frontend/src/components/Users/UserList.tsx b/typescript/Frontend/src/components/Users/UserList.tsx
index 28dfdd48d..90010a945 100644
--- a/typescript/Frontend/src/components/Users/UserList.tsx
+++ b/typescript/Frontend/src/components/Users/UserList.tsx
@@ -28,11 +28,11 @@ const filterData = (searchQuery: string, data: I_User[] | undefined) => {
   return data;
 };
 
-interface UserListProps {
+interface I_UserListProps {
   searchQuery: string;
 }
 
-const UserList = (props: UserListProps) => {
+const UserList = (props: I_UserListProps) => {
   const { availableUsers } = useContext(UsersContext);
   const filteredData = filterData(props.searchQuery, availableUsers);
 
diff --git a/typescript/Frontend/src/dataCache/data.ts b/typescript/Frontend/src/dataCache/data.ts
index 6ee818442..0ca7d6aff 100644
--- a/typescript/Frontend/src/dataCache/data.ts
+++ b/typescript/Frontend/src/dataCache/data.ts
@@ -1,14 +1,14 @@
 import { Maybe } from "yup";
 import { Timestamped } from "./types";
 import { isDefined } from "./utils/maybe";
-import { CsvEntry } from "../util/graph.util";
+import { I_CsvEntry } from "../util/graph.util";
 
-export type DataRecord = Record<string, CsvEntry>;
+export type DataRecord = Record<string, I_CsvEntry>;
 
 export type DataPoint = Timestamped<Maybe<DataRecord>>;
 export type RecordSeries = Array<DataPoint>;
-export type PointSeries = Array<Timestamped<Maybe<CsvEntry>>>;
-export type DataSeries = Array<Maybe<CsvEntry>>;
+export type PointSeries = Array<Timestamped<Maybe<I_CsvEntry>>>;
+export type DataSeries = Array<Maybe<I_CsvEntry>>;
 
 export function getPoints(
   recordSeries: RecordSeries,
diff --git a/typescript/Frontend/src/dataCache/dataCache.ts b/typescript/Frontend/src/dataCache/dataCache.ts
index 7a35dd8bb..3cb04c892 100644
--- a/typescript/Frontend/src/dataCache/dataCache.ts
+++ b/typescript/Frontend/src/dataCache/dataCache.ts
@@ -7,7 +7,7 @@ import { SkipListNode } from "./skipList/skipListNode";
 import { RecordSeries } from "./data";
 import { isUndefined, Maybe } from "./utils/maybe";
 import { isNumber } from "./utils/runtimeTypeChecking";
-import { CsvEntry } from "../util/graph.util";
+import { I_CsvEntry } from "../util/graph.util";
 
 export const FetchResult = {
   notAvailable: "N/A",
@@ -31,7 +31,7 @@ function reverseBits(x: number): number {
   return x >>> 0;
 }
 
-export default class DataCache<T extends Record<string, CsvEntry>> {
+export default class DataCache<T extends Record<string, I_CsvEntry>> {
   private readonly cache: SkipList<Maybe<T>> = new SkipList<Maybe<T>>();
   private readonly resolution: TimeSpan;
 
@@ -104,7 +104,7 @@ export default class DataCache<T extends Record<string, CsvEntry>> {
     const n = after.index - t;
     const pn = p + n;
 
-    let interpolated: Record<string, CsvEntry> = {};
+    let interpolated: Record<string, I_CsvEntry> = {};
 
     //What about string nodes? like Alarms
     for (const k of Object.keys(dataBefore)) {
diff --git a/typescript/Frontend/src/index.css b/typescript/Frontend/src/index.css
new file mode 100644
index 000000000..b21a0a390
--- /dev/null
+++ b/typescript/Frontend/src/index.css
@@ -0,0 +1,17 @@
+body {
+    margin: 0;
+    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
+    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
+    sans-serif;
+    -webkit-font-smoothing: antialiased;
+    -moz-osx-font-smoothing: grayscale;
+}
+
+code {
+    font-family: source-code-pro, Menlo, Monaco, Consolas, 'Courier New',
+    monospace;
+}
+
+body {
+    background-color: #f3f4f7;
+}
\ No newline at end of file
diff --git a/typescript/Frontend/src/index.tsx b/typescript/Frontend/src/index.tsx
index fa4b947d7..84e6b3cdd 100644
--- a/typescript/Frontend/src/index.tsx
+++ b/typescript/Frontend/src/index.tsx
@@ -1,6 +1,7 @@
 import React from "react";
 import ReactDOM from "react-dom/client";
 import App from "./App";
+import "./index.css";
 import reportWebVitals from "./reportWebVitals";
 import { createTheme, ThemeProvider } from "@mui/material";
 import UserContextProvider from "./components/Context/UserContextProvider";
diff --git a/typescript/Frontend/src/tests/helper.js b/typescript/Frontend/src/tests/helper.js
index 1d2918409..3baa804b4 100644
--- a/typescript/Frontend/src/tests/helper.js
+++ b/typescript/Frontend/src/tests/helper.js
@@ -1,14 +1,12 @@
-
-import {Selector, t} from 'testcafe';
+import { t } from "testcafe";
 
 export async function login(name, pw) {
-    await t
-        .typeText('#username-textfield', name)
-        .typeText('#password-textfield', pw)
-        .click('.MuiButtonBase-root') //todo id
+  await t
+    .typeText("#username-textfield", name)
+    .typeText("#password-textfield", pw)
+    .click(".MuiButtonBase-root"); //todo id
 }
 
 export async function logout() {
-    await t
-        .click('.MuiButtonBase-root');
+  await t.click(".MuiButtonBase-root");
 }
diff --git a/typescript/Frontend/src/util/graph.util.tsx b/typescript/Frontend/src/util/graph.util.tsx
index 7a42d4dd9..1d140045c 100644
--- a/typescript/Frontend/src/util/graph.util.tsx
+++ b/typescript/Frontend/src/util/graph.util.tsx
@@ -1,14 +1,14 @@
 import { Datum, TypedArray } from "plotly.js";
-import { TreeElement } from "../components/Installations/Log/CheckboxTree";
+import { I_TreeElement } from "../components/Installations/Log/CheckboxTree";
 import { TimeRange, UnixTime } from "../dataCache/time";
 import { DataPoint, DataRecord } from "../dataCache/data";
 import { isDefined } from "../dataCache/utils/maybe";
 import {
   BoxData,
-  BoxDataValue,
+  I_BoxDataValue,
 } from "../components/Installations/LiveView/TopologyBox";
 
-export interface GraphCoordinates {
+export interface I_GraphCoordinates {
   x: Datum[] | Datum[][] | TypedArray;
   y: Datum[] | Datum[][] | TypedArray;
   xaxis?: string;
@@ -32,8 +32,8 @@ export const createTimes = (
   return roundedRange.sample(oneSpan);
 };
 
-export interface GraphData {
-  [path: string]: GraphCoordinates;
+export interface I_GraphData {
+  [path: string]: I_GraphCoordinates;
 }
 
 // connections must have the word Connection in the prop name, so the topology works correctly
@@ -141,7 +141,7 @@ export const extractTopologyValues = (
   const timeSeriesValue = timeSeriesData.value;
   if (isDefined(timeSeriesValue)) {
     return Object.keys(topologyPaths).reduce((acc, topologyKey) => {
-      let topologyValues: BoxDataValue[];
+      let topologyValues: I_BoxDataValue[];
       const values = topologyPaths[topologyKey as keyof TopologyValues].map(
         (topologyPath) => timeSeriesValue[topologyPath]
       );
@@ -196,12 +196,12 @@ export const getHighestConnectionValue = (values: TopologyValues) =>
 
 export const getAmount = (
   highestConnectionValue: number,
-  values: BoxDataValue[]
+  values: I_BoxDataValue[]
 ) => {
   return Math.abs(values[0].value as number) / highestConnectionValue;
 };
 
-export interface CsvEntry {
+export interface I_CsvEntry {
   value: string | number;
   unit: string;
 }
@@ -225,9 +225,9 @@ export const parseCsv = (text: string): DataRecord => {
 };
 
 export const insertTreeElements = (
-  children: TreeElement[] = [],
+  children: I_TreeElement[] = [],
   [head, ...tail]: string[]
-): TreeElement[] => {
+): I_TreeElement[] => {
   let child = children.find((child) => child.name === head);
 
   if (!child) {
@@ -249,7 +249,7 @@ export const isText = (data: any): data is string => {
   return typeof data === "string";
 };
 
-export const flattenBarGraphData = (arr: any): GraphCoordinates[] => {
+export const flattenBarGraphData = (arr: any): I_GraphCoordinates[] => {
   return arr.reduce((flat: any, toFlatten: any) => {
     return flat.concat(
       Array.isArray(toFlatten) ? flattenBarGraphData(toFlatten) : toFlatten
@@ -277,7 +277,7 @@ export const isNumeric = (value: any) => {
   return !isNaN(value) && !isNaN(parseFloat(value));
 };
 
-export const transformToBarGraphData = (data: GraphCoordinates) => {
+export const transformToBarGraphData = (data: I_GraphCoordinates) => {
   let names: string[] = [];
   const barGraphData = data.y.map((text, i) => {
     if (isText(text)) {
@@ -313,6 +313,6 @@ export const getTreeElements = (toggleValues: DataRecord) => {
     )
     .reduce(
       (children, path) => insertTreeElements(children, path),
-      [] as TreeElement[]
+      [] as I_TreeElement[]
     );
 };
diff --git a/typescript/Frontend/src/util/types.tsx b/typescript/Frontend/src/util/types.tsx
index 0f7860446..06c6dc5e9 100644
--- a/typescript/Frontend/src/util/types.tsx
+++ b/typescript/Frontend/src/util/types.tsx
@@ -1,5 +1,4 @@
-// TODO add if required or not
-export interface S3Credentials {
+export interface I_S3Credentials {
   s3Region: string;
   s3Provider: string;
   s3Key: string;
@@ -7,7 +6,7 @@ export interface S3Credentials {
   s3Bucket?: string;
 }
 
-export interface I_Installation extends S3Credentials {
+export interface I_Installation extends I_S3Credentials {
   type: string;
   title?: string;
   status?: number;
@@ -35,37 +34,3 @@ export interface I_Folder {
   type: string;
   children?: (I_Installation | I_Folder)[];
 }
-
-interface I_Ac {
-  Current: number;
-  Voltage: number;
-  Phi?: number;
-}
-
-interface I_Dc {
-  Current: number;
-  Voltage: number;
-}
-
-export interface I_Device {
-  Name: string;
-  Type: string;
-  Ac?: I_Ac[];
-  Dc?: I_Dc;
-  Dc48?: I_Dc;
-  Frequency?: number;
-  Alarms?: any[];
-  Warnings?: any[];
-  MainState?: string;
-  "DC Power"?: number;
-  Soc?: number;
-  HeaterOn?: boolean;
-  EocReached?: boolean;
-  BatteryCold?: boolean;
-  Temperature?: number;
-}
-
-export interface I_GraphData {
-  TimeStamp: string;
-  Devices: I_Device[];
-}
diff --git a/typescript/Frontend/src/util/user.util.tsx b/typescript/Frontend/src/util/user.util.tsx
index 1e4fbe116..4b493d0bc 100644
--- a/typescript/Frontend/src/util/user.util.tsx
+++ b/typescript/Frontend/src/util/user.util.tsx
@@ -12,7 +12,7 @@ export interface I_User {
   mustResetPassword: boolean;
 }
 
-export interface UserWithInheritedAccess {
+export interface I_UserWithInheritedAccess {
   folderId: number;
   folderName: string;
   user: I_User;
@@ -20,7 +20,7 @@ export interface UserWithInheritedAccess {
 
 export const filterDuplicateUsers = (data: any[]) => {
   return data.reduce(
-    (prev: UserWithInheritedAccess[], curr: UserWithInheritedAccess) => {
+    (prev: I_UserWithInheritedAccess[], curr: I_UserWithInheritedAccess) => {
       const foundUser = prev.find(({ user }) => user.id === curr.user.id);
       if (foundUser) {
         const prevIds = foundUser.user.folderIds