diff --git a/index.html b/index.html
index 58b51582..818fa917 100644
--- a/index.html
+++ b/index.html
@@ -238,7 +238,16 @@ <h5 class="offcanvas-title" id="offcanvasExampleLabel">Settings</h5>
                         <div class="pe-3 form-group rounded p-2 mb-2">
                             <div class="form-check form-switch">
                                 <input class="form-check-input" type="checkbox" role="switch" id="audio-notification">
-                                <label class="form-check-label" for="audio-notification"></label>Enable analysis completion notifications
+                                <label class="form-check-label" for="audio-notification">Enable analysis completion notifications</label>
+                            </div>
+                        </div>
+                    </div>
+                    <div>
+                        <a class="circle" tabindex="-1" data-bs-toggle="popover" data-bs-trigger="focus" data-bs-title="Prevent system sleep" data-bs-content="When enabled, prevent the system from suspending whilst Chirpity is in use.">?</a>
+                        <div class="pe-3 form-group rounded p-2 mb-2">
+                            <div class="form-check form-switch">
+                                <input class="form-check-input" type="checkbox" role="switch" id="power-save-block">
+                                <label class="form-check-label" for="power-save-block">Prevent system sleep</label>
                             </div>
                         </div>
                     </div>
diff --git a/js/state.js b/js/state.js
index 1f00d6dc..a326c912 100644
--- a/js/state.js
+++ b/js/state.js
@@ -34,7 +34,8 @@ export class State {
             this.local = true,
             this.incrementor = 1,
             this.UUID = 0,
-            this.track = true
+            this.track = true,
+            this.powerSaveBlocker = false
     }
 
 
diff --git a/js/ui.js b/js/ui.js
index d2796c91..7cad8986 100644
--- a/js/ui.js
+++ b/js/ui.js
@@ -506,9 +506,9 @@ async function showOpenDialog(fileOrFolder) {
     }
 }
 
-// function powerSave(on) {
-//     return window.electron.powerSaveBlocker(on);
-// }
+function powerSave(on) {
+    return window.electron.powerSaveBlocker(on);
+}
 
 const openFileInList = async (e) => {
     if (!PREDICTING && e.target.tagName === 'A') {
@@ -1520,7 +1520,8 @@ const defaultConfig = {
     limit: 500,
     track: true,
     debug: false,
-    VERSION: VERSION
+    VERSION: VERSION,
+    powerSaveBlocker: false
 };
 let appPath, tempPath, isMac;
 window.onload = async () => {
@@ -1604,7 +1605,6 @@ window.onload = async () => {
         document.getElementById('mid-color').value = config.customColormap.mid;
         document.getElementById('quiet-color').value = config.customColormap.quiet;
         document.getElementById('color-threshold-slider').value = config.customColormap.threshold;
-
         // Audio preferences:
         DOM.gain.value = config.audio.gain;
         DOM.gainAdjustment.textContent = config.audio.gain + 'dB';
@@ -1619,6 +1619,10 @@ window.onload = async () => {
         DOM.audioDownmix.checked = config.audio.downmix;
         setNocmig(config.detect.nocmig);
         modelSettingsDisplay();
+        // Block powersave? 
+        document.getElementById('power-save-block').checked = config.powerSaveBlocker;
+        powerSave(config.powerSaveBlocker);
+
         contextAwareIconDisplay();
         DOM.debugMode.checked = config.debug;
         showThreshold(config.detect.confidence);
@@ -2453,11 +2457,9 @@ function onChartData(args) {
         const backendEL = document.getElementById(config.backend);
         backendEL.checked = true;
         if (config.backend === 'webgl' || config.backend === 'webgpu') {
-            //powerSave(true)
             SNRSlider.disabled = true;
             config.filters.SNR = 0;
         } else {
-            // powerSave(false)
             DOM.contextAware.disabled = false;
             if (DOM.contextAware.checked) {
                 config.detect.contextAware = true;
@@ -3661,7 +3663,6 @@ function onChartData(args) {
                 nodeOnly.forEach(element => element.classList.add('d-none'));
             }
         }
-
     }
 
     const contextAwareIconDisplay = () => {
@@ -4420,6 +4421,11 @@ DOM.gain.addEventListener('input', () => {
                     config.audio.notification = element.checked;
                     break;
                 }
+                case 'power-save-block': {
+                    config.powerSaveBlocker = element.checked;
+                    powerSave(config.powerSaveBlocker);
+                    break;
+                }
                 case 'species-week': {
                     config.useWeek = element.checked;
 
diff --git a/main.js b/main.js
index 6e910a76..0d596218 100644
--- a/main.js
+++ b/main.js
@@ -1,4 +1,4 @@
-const { app, Menu, dialog, ipcMain, MessageChannelMain, BrowserWindow, globalShortcut } = require('electron');
+const { app, Menu, dialog, ipcMain, MessageChannelMain, BrowserWindow, globalShortcut, powerSaveBlocker } = require('electron');
 app.commandLine.appendSwitch('disable-renderer-backgrounding');
 // WebGPU flags needed for Linux
 app.commandLine.appendSwitch('enable-unsafe-webgpu');
@@ -17,6 +17,7 @@ let files = [];
 let DEBUG = false;
 let unsavedRecords = false;
 
+
 //-------------------------------------------------------------------
 // Logging
 
@@ -436,6 +437,8 @@ app.whenReady().then(async () => {
             properties: ['openDirectory']
         });
     })
+
+
     
     mainWindow.webContents.setWindowOpenHandler(({ url, frameName }) => {
         require('electron').shell.openExternal(url);
@@ -526,3 +529,15 @@ ipcMain.handle('saveFile', (event, arg) => {
     mainWindow.webContents.send('saveFile', { message: 'file saved!' });
 });
 
+
+let powerSaveID = powerSaveBlocker.start('prevent-app-suspension');
+powerSaveBlocker.stop(powerSaveID);
+ipcMain.handle('powerSaveControl', (e, on) => {
+    if (on){
+        powerSaveID = powerSaveBlocker.start('prevent-app-suspension')
+        //console.log(powerSaveBlocker.isStarted(powerSaveID), powerSaveID)
+    } else {
+        powerSaveBlocker.stop(powerSaveID)
+        //console.log(powerSaveBlocker.isStarted(powerSaveID), powerSaveID)
+    }
+})
\ No newline at end of file
diff --git a/preload.js b/preload.js
index e3953102..3b8b976d 100644
--- a/preload.js
+++ b/preload.js
@@ -1,4 +1,4 @@
-const {contextBridge, ipcRenderer} = require("electron");
+const {contextBridge, ipcRenderer } = require("electron");
 const fs = require('node:fs');
 const colormap = require("colormap");
 const p = require('node:path');
@@ -53,7 +53,8 @@ contextBridge.exposeInMainWorld('electron', {
     getVersion: () => ipcRenderer.invoke('getVersion'),
     getAudio: () => ipcRenderer.invoke('getAudio'),
     isMac: () => ipcRenderer.invoke('isMac'),
-    exitApplication: () => ipcRenderer.invoke('exitApplication')
+    exitApplication: () => ipcRenderer.invoke('exitApplication'),
+    powerSaveBlocker: (onOff) => ipcRenderer.invoke('powerSaveControl', onOff)
 });
 
 contextBridge.exposeInMainWorld('module', {