Index: libexec/rc/rc.conf
===================================================================
--- libexec/rc/rc.conf
+++ libexec/rc/rc.conf
@@ -707,8 +707,16 @@
 devfs_load_rulesets="YES"	# Enable to always load the default rulesets
 performance_cx_lowest="NONE"	# Online CPU idle state
 performance_cpu_freq="NONE"	# Online CPU frequency
+performance_tz0_active="NONE"	# Online forced active cooling zone
+performance_tz0_PSV="NONE"	# Online passive cooling threshold
+performance_tz0_CR3="NONE"	# Online critical standby (S3) threshold
+performance_tz0_HOT="NONE"	# Online critical suspend (S4) threshold
 economy_cx_lowest="Cmax"	# Offline CPU idle state
 economy_cpu_freq="NONE"		# Offline CPU frequency
+economy_tz0_active="NONE"	# Offline forced active cooling zone
+economy_tz0_PSV="NONE"		# Offline passive cooling threshold
+economy_tz0_CR3="NONE"		# Offline critical standby (S3) threshold
+economy_tz0_HOT="NONE"		# Offline critical suspend (S4) threshold
 virecover_enable="YES"	# Perform housekeeping for the vi(1) editor
 ugidfw_enable="NO"	# Load mac_bsdextended(4) rules on boot
 bsdextended_script="/etc/rc.bsdextended"	# Default mac_bsdextended(4)
Index: libexec/rc/rc.d/power_profile
===================================================================
--- libexec/rc/rc.d/power_profile
+++ libexec/rc/rc.d/power_profile
@@ -80,6 +80,22 @@
 esac
 
 # Set the various sysctls based on the profile's values.
+node="hw.acpi.thermal.tz0._PSV"
+eval value=\$${profile}_tz0_PSV
+sysctl_set
+
+node="hw.acpi.thermal.tz0._CR3"
+eval value=\$${profile}_tz0_CR3
+sysctl_set
+
+node="hw.acpi.thermal.tz0._HOT"
+eval value=\$${profile}_tz0_HOT
+sysctl_set
+
+node="hw.acpi.thermal.tz0.active"
+eval value=\$${profile}_tz0_active
+sysctl_set
+
 node="hw.acpi.cpu.cx_lowest"
 highest_value="C1"
 lowest_value="Cmax"