diff --git a/sungrow_map.go b/sungrow_map.go
index f82fbc7..cd2f159 100644
--- a/sungrow_map.go
+++ b/sungrow_map.go
@@ -45,9 +45,9 @@ var sungrowInputRegs = map[uint16]*register{
 	5049: {"nominal_reactive_power", s16opt, 0.1, "kVA"},
 
 	5083: {"meter_power", s32req, 1, "W"},
-	5085: {"meter_a_phase_power", s32req, 1, "W"},
-	5087: {"meter_b_phase_power", s32req, 1, "W"},
-	5089: {"meter_c_phase_power", s32req, 1, "W"},
+	5085: {"meter_a_phase_power", s32opt, 1, "W"},
+	5087: {"meter_b_phase_power", s32opt, 1, "W"},
+	5089: {"meter_c_phase_power", s32opt, 1, "W"},
 	5091: {"usage_power", s32req, 1, "W"},
 	5093: {"daily_export_energy", u32req, 0.1, "kWh"},
 	5095: {"total_export_energy", u32req, 0.1, "kWh"},