diff --git a/valid-named-mps/v910-hydro-max-power-pump/settings/generaldata.ini b/valid-named-mps/v910-hydro-max-power-pump/settings/generaldata.ini
index 8376761d..972ba274 100644
--- a/valid-named-mps/v910-hydro-max-power-pump/settings/generaldata.ini
+++ b/valid-named-mps/v910-hydro-max-power-pump/settings/generaldata.ini
@@ -100,3 +100,5 @@ seed-thermal-costs = 8005489
 seed-hydro-costs = 9005489
 seed-initial-reservoir-levels = 10005489
 
+[compatibility]
+hydro-pmax = hourly
diff --git a/valid-named-mps/v910-hydro-max-power/settings/generaldata.ini b/valid-named-mps/v910-hydro-max-power/settings/generaldata.ini
index 8376761d..972ba274 100644
--- a/valid-named-mps/v910-hydro-max-power/settings/generaldata.ini
+++ b/valid-named-mps/v910-hydro-max-power/settings/generaldata.ini
@@ -100,3 +100,5 @@ seed-thermal-costs = 8005489
 seed-hydro-costs = 9005489
 seed-initial-reservoir-levels = 10005489
 
+[compatibility]
+hydro-pmax = hourly
diff --git a/valid-v910/hydro-sc-builder/settings/generaldata.ini b/valid-v910/hydro-sc-builder/settings/generaldata.ini
index 589129a5..3916ac06 100644
--- a/valid-v910/hydro-sc-builder/settings/generaldata.ini
+++ b/valid-v910/hydro-sc-builder/settings/generaldata.ini
@@ -103,3 +103,5 @@ seed-thermal-costs = 8005489
 seed-hydro-costs = 9005489
 seed-initial-reservoir-levels = 10005489
 
+[compatibility]
+hydro-pmax = hourly
diff --git a/valid-v920/final-levels/settings/generaldata.ini b/valid-v920/final-levels/settings/generaldata.ini
index 91c81927..7e601768 100644
--- a/valid-v920/final-levels/settings/generaldata.ini
+++ b/valid-v920/final-levels/settings/generaldata.ini
@@ -103,3 +103,5 @@ seed-thermal-costs = 8005489
 seed-hydro-costs = 9005489
 seed-initial-reservoir-levels = 10005489
 
+[compatibility]
+hydro-pmax = hourly