diff --git a/agenix/hosts/argon/config.nix b/agenix/hosts/argon/config.nix
index 2766024..82ef5a0 100644
--- a/agenix/hosts/argon/config.nix
+++ b/agenix/hosts/argon/config.nix
@@ -39,6 +39,10 @@
       group = "mosquitto";
     };
 
+    ups-primary-password = {
+      file = ./ups/primaryPassword.age;
+    };
+
     weewx-proxy-environment = {
       file = ./weewx-proxy/environment.age;
     };
diff --git a/agenix/hosts/argon/ups/primaryPassword.age b/agenix/hosts/argon/ups/primaryPassword.age
new file mode 100644
index 0000000..d320dac
--- /dev/null
+++ b/agenix/hosts/argon/ups/primaryPassword.age
@@ -0,0 +1,7 @@
+age-encryption.org/v1
+-> ssh-ed25519 MtGp6g ZX57M5ki05gFAm/cIZIiqlX1by+eosXddvWln3y4nEM
+E/Ew7nB38f6RnMZMjg4J5/qFUmz2jJl11RiqEsi6Cd0
+-> ssh-ed25519 1fcLUQ 26z8R+YdIcdALuBorv2rboW25fDC7Xern/r8PCX8E00
+lr+KVKkgrU/zHg/nZAbZyzYIhe0euYeZy1kWzPK1MD4
+--- rA/LWzan74b4214noRwwzrtpR1sx4NK844K8pGFbEDk
+�̭
�]5�y�%�:�)�6��2{Ky�NG�.x��\Y� �
��"*�|�
\ No newline at end of file
diff --git a/secrets.nix b/secrets.nix
index d0bf45d..6d5d18d 100644
--- a/secrets.nix
+++ b/secrets.nix
@@ -108,6 +108,8 @@ in
 
   "agenix/hosts/argon/adguardhome-sync/environment.age".publicKeys = argon;
 
+  "agenix/hosts/argon/ups/primaryPassword.age".publicKeys = argon;
+
   "agenix/hosts/argon/weewx-proxy/environment.age".publicKeys = argon;
 
   # neon 
diff --git a/system/hosts/argon.nix b/system/hosts/argon.nix
index 0b984fc..7dc6a63 100644
--- a/system/hosts/argon.nix
+++ b/system/hosts/argon.nix
@@ -189,6 +189,30 @@ in
 
   services.hardware.argonone.enable = true;
 
+  power.ups = {
+    enable = true;
+    mode = "standalone";
+    openFirewall = true;
+
+    ups.primary = {
+      description = "APC Back-UPS BX - BX950U-GR";
+      driver = "usbhid-ups";
+      port = "auto";
+    };
+
+    users.upsmon = {
+      passwordFile = config.age.secrets.ups-primary-password.path;
+      upsmon = "primary";
+    };
+
+    upsd.listen = [
+      { address = "127.0.0.1"; }
+      { address = "10.0.0.5"; }
+    ];
+
+    upsmon.monitor.primary.user = "upsmon";
+  };
+
   programs = {
     fish.enable = true;
     zsh.enable = true;