diff --git a/modules/hardware/disks.nix b/modules/hardware/disks.nix
index fcb533b..6e1acee 100644
--- a/modules/hardware/disks.nix
+++ b/modules/hardware/disks.nix
@@ -225,6 +225,12 @@ in
       example = [ "/dev/disk/by-id/nvme_SAMSUNG_MZVPYEHCO_159Ejz224G0000" "/dev/disk/by-id/ata-San_Disk_159Ejz224G" ];
       description = "List of by-id path of devices for boot disks";
     };
+    spindownDisksList = mkOption {
+      type = types.listOf types.str;
+      default = [];
+      example = [ "/dev/disk/by-id/WD_Blue_ATO431_159Ejz224G0000382b" "/dev/disk/by-id/Seagate_Barracuda_159Ejz224G" ];
+      description = "List of by-id path of devices to spindown when inactive to save power (HDD only)";
+    };
     swapSize = mkOption {
       type = types.str;
       default = "16G";
diff --git a/modules/misc/power.nix b/modules/misc/power.nix
index 178d970..399bba4 100644
--- a/modules/misc/power.nix
+++ b/modules/misc/power.nix
@@ -1,7 +1,7 @@
 { config, lib, pkgs, ... }:
 
 let
-  hardDrives = config.numbus.hardware.dataDisksList ++ config.numbus.hardware.parityDisksList;
+  hardDrives = config.numbus.hardware.spindownDisksList;
 in
 
 {
diff --git a/modules/services/lib.nix b/modules/services/lib.nix
index be8f098..874bfa3 100644
--- a/modules/services/lib.nix
+++ b/modules/services/lib.nix
@@ -23,6 +23,7 @@ with lib;
     generatedSecrets ? {},
     importedSecrets ? {},
     envFile ? null,
+    ...
   }:
 
   let