diff --git a/localwebsite/handlers/InverterHandler.php b/localwebsite/handlers/InverterHandler.php
index 78fc1ab..7098e2c 100644
--- a/localwebsite/handlers/InverterHandler.php
+++ b/localwebsite/handlers/InverterHandler.php
@@ -3,37 +3,45 @@
 class InverterHandler extends RequestHandler
 {
 
-    public function __construct()
-    {
+    public function __construct() {
         parent::__construct();
         $this->tpl->add_static('inverter.js');
     }
 
-    public function GET_status_page()
-    {
-        global $config;
-        $inv = new InverterdClient($config['inverterd_host'], $config['inverterd_port']);
-        $inv->setFormat('json');
+    public function GET_status_page() {
+        $inv = $this->getClient();
+
         $status = jsonDecode($inv->exec('get-status'))['data'];
+        $rated = jsonDecode($inv->exec('get-rated'))['data'];
 
         $this->tpl->set([
             'status' => $status,
-            'html' => $this->renderStatusHtml($status)
+            'rated' => $rated,
+            'html' => $this->renderStatusHtml($status, $rated)
         ]);
         $this->tpl->set_title('Инвертор');
         $this->tpl->render_page('inverter_page.twig');
     }
 
-    public function GET_status_ajax() {
-        global $config;
-        $inv = new InverterdClient($config['inverterd_host'], $config['inverterd_port']);
-        $inv->setFormat('json');
-        $status = jsonDecode($inv->exec('get-status'))['data'];
-        ajax_ok(['html' => $this->renderStatusHtml($status)]);
+    public function GET_set_osp() {
+        list($osp) = $this->input('e:value(=sub|sbu)');
+        $inv = $this->getClient();
+        try {
+            $inv->exec('set-output-source-priority', [strtoupper($osp)]);
+        } catch (Exception $e) {
+            die('Ошибка: '.jsonDecode($e->getMessage())['message']);
+        }
+        redirect('/inverter/');
     }
 
-    protected function renderStatusHtml(array $status)
-    {
+    public function GET_status_ajax() {
+        $inv = $this->getClient();
+        $status = jsonDecode($inv->exec('get-status'))['data'];
+        $rated = jsonDecode($inv->exec('get-rated'))['data'];
+        ajax_ok(['html' => $this->renderStatusHtml($status, $rated)]);
+    }
+
+    protected function renderStatusHtml(array $status, array $rated) {
         $power_direction = strtolower($status['battery_power_direction']);
         $power_direction = preg_replace('/ge$/', 'ging', $power_direction);
 
@@ -77,12 +85,18 @@ class InverterHandler extends RequestHandler
                 $status['grid_freq']['unit']);
         }
 
+        $html .= "\n".sprintf('<b>Priority:</b> %s',
+            $rated['output_source_priority']);
+
         return nl2br($html);
     }
 
-    public function GET_status_page_update()
-    {
-
+    protected function getClient(): InverterdClient {
+        global $config;
+        $inv = new InverterdClient($config['inverterd_host'], $config['inverterd_port']);
+        $inv->setFormat('json');
+        return $inv;
     }
 
+
 }
\ No newline at end of file
diff --git a/localwebsite/htdocs/index.php b/localwebsite/htdocs/index.php
index 0a4e8c5..d1fc0fd 100644
--- a/localwebsite/htdocs/index.php
+++ b/localwebsite/htdocs/index.php
@@ -19,6 +19,7 @@ $router->add('sms/',     'Modem sms');
 
 // inverter
 $router->add('inverter/',            'Inverter status_page');
+$router->add('inverter/set-osp/',    'Inverter set_osp');
 $router->add('inverter/status.ajax', 'Inverter status_ajax');
 
 // misc
diff --git a/localwebsite/templates-web/inverter_page.twig b/localwebsite/templates-web/inverter_page.twig
index 2c3f8dd..c51e1bf 100644
--- a/localwebsite/templates-web/inverter_page.twig
+++ b/localwebsite/templates-web/inverter_page.twig
@@ -9,6 +9,12 @@
   {{ html|raw }}
 </div>
 
+<div class="pt-3">
+  <a href="/inverter/set-osp/?value={{ rated.output_source_priority == 'Solar-Battery-Utility' ? 'sub' : 'sbu' }}">
+    <button type="button" class="btn btn-primary">Переключить на <b>{{ rated.output_source_priority == 'Solar-Battery-Utility' ? 'Solar-Utility-Battery' : 'Solar-Battery-Utility' }}</b></button>
+  </a>
+</div>
+
 {% js %}
 Inverter.poll();
 {% endjs %}
\ No newline at end of file