diff --git a/coordinator/coordinator.lua b/coordinator/coordinator.lua
index baca753..bb8bcee 100644
--- a/coordinator/coordinator.lua
+++ b/coordinator/coordinator.lua
@@ -592,7 +592,7 @@ function coordinator.comms(version, nic, sv_watchdog)
                                 elseif cmd == FAC_COMMAND.SET_PU_FB then
                                     process.pu_fb_ack_handle(packet.data[2])
                                 elseif cmd == FAC_COMMAND.SET_SPS_LP then
-                                    ---@todo
+                                    process.sps_lp_ack_handle(packet.data[2])
                                 else
                                     log.debug(util.c("received facility command ack with unknown command ", cmd))
                                 end
diff --git a/coordinator/process.lua b/coordinator/process.lua
index abb1bc2..5f7f010 100644
--- a/coordinator/process.lua
+++ b/coordinator/process.lua
@@ -485,18 +485,25 @@ function process.start_ack_handle(response)
     pctl.io.facility.start_ack(ack)
 end
 
--- record waste product state after attempting to change it
----@param response WASTE_PRODUCT supervisor waste product state
+-- record waste product settting after attempting to change it
+---@param response WASTE_PRODUCT supervisor waste product settting
 function process.waste_ack_handle(response)
     pctl.control_states.process.waste_product = response
     pctl.io.facility.ps.publish("process_waste_product", response)
 end
 
--- record plutonium fallback state after attempting to change it
----@param response boolean supervisor plutonium fallback state
+-- record plutonium fallback settting after attempting to change it
+---@param response boolean supervisor plutonium fallback settting
 function process.pu_fb_ack_handle(response)
     pctl.control_states.process.pu_fallback = response
     pctl.io.facility.ps.publish("process_pu_fallback", response)
 end
 
+-- record SPS low power settting after attempting to change it
+---@param response boolean supervisor SPS low power settting
+function process.sps_lp_ack_handle(response)
+    pctl.control_states.process.sps_low_power = response
+    pctl.io.facility.ps.publish("process_sps_low_power", response)
+end
+
 return process