diff --git a/POWER.txt b/POWER.txt
new file mode 100644
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--- /dev/null
+++ b/POWER.txt
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+G3 state
+VCCRTC from VCC_RTC enabled by CMOS battery
+RTCRST# from VCC_RTC
+
+Power plugged in
+VCCDSW_3P3 from VDD3 enabled by AC power
+Assert VA_EC_EN
+VCCPRIM_3P3 from 3.3VA enabled by VA_EC_EN
+VCCPRIM_1P8 from 1.8VA enabled by VA_EC_EN
+VCCPRIM_1P05 from 1.05VA enabled by VA_EC_EN
+Assert DD_ON
+VDD5 enabled by DD_ON
+3.3V enabled by DD_ON
+Assert SUS_ACK# by SUS_PWR_ACK
+Assert DSW_PWROK by PCH_DPWROK_EC
+Assert RSMRST#
+S5 state
+
+Assert ACPRESENT#
+Assert PWRBTN#
+Assert EC_EN - WHEN?
+Assert VR_ON
+Assert PCH_PWROK via PM_PWROK
+Assert PCH_PWROK_EC
+S0 state