diff --git a/src/PowerLimiterSolarInverter.cpp b/src/PowerLimiterSolarInverter.cpp
index c8972b0f9..c33485214 100644
--- a/src/PowerLimiterSolarInverter.cpp
+++ b/src/PowerLimiterSolarInverter.cpp
@@ -71,8 +71,10 @@ uint16_t PowerLimiterSolarInverter::getMaxIncreaseWatts() const
     }
 
     if (dcNonShadedMppts == 0) {
-        // all mppts are shaded, we can't increase the power
-        return 0;
+        // all mppts are shaded according to our calculation.
+        // but because we can not be sure we assume that we can
+        // increase the power by 3% of the max power.
+        return getConfiguredMaxPowerWatts() * 0.03;
     }
 
     if (dcNonShadedMppts == dcTotalMppts) {