From 11a05ade824f04361d97762598a32f4f5b662c74 Mon Sep 17 00:00:00 2001
From: john whately <18461782+GeoDerp@users.noreply.github.com>
Date: Sat, 22 Jun 2024 15:01:09 +0930
Subject: [PATCH] P_PV_curtailment, add minimum of 0

Related to: https://github.com/davidusb-geek/emhass/issues/305#issuecomment-2165428574
---
 src/emhass/optimization.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/emhass/optimization.py b/src/emhass/optimization.py
index 3795710a..31858d1a 100644
--- a/src/emhass/optimization.py
+++ b/src/emhass/optimization.py
@@ -314,7 +314,7 @@ def perform_optimization(self, data_opt: pd.DataFrame, P_PV: np.array, P_load: n
         else:
             constraints.update({"constraint_curtailment_{}".format(i) :
                 plp.LpConstraint(
-                    e = P_PV_curtailment[i] - P_PV[i],
+                    e = P_PV_curtailment[i] - max(P_PV[i],0),
                     sense = plp.LpConstraintLE,
                     rhs = 0)
                 for i in set_I})