diff --git a/db/routines/R__022_fn_fill_forecast_accuracy.sql b/db/routines/R__022_fn_fill_forecast_accuracy.sql
index 826e2a4..b2d673b 100644
--- a/db/routines/R__022_fn_fill_forecast_accuracy.sql
+++ b/db/routines/R__022_fn_fill_forecast_accuracy.sql
@@ -38,7 +38,8 @@ BEGIN
         CASE
             WHEN v.exclude_actual_for_learning THEN NULL
             WHEN slot.avg_actual_w IS NOT NULL
-                 AND slot.avg_actual_w > 0
+                 AND slot.avg_actual_w >= 50
+                 AND fpi.power_w >= 50
             THEN ROUND(
                 (fpi.power_w::NUMERIC - slot.avg_actual_w::NUMERIC)
                 / slot.avg_actual_w::NUMERIC * 100,