From 216ebca6518ff49074b43de293e7253f58b4be09 Mon Sep 17 00:00:00 2001
From: andig <cpuidle@gmx.de>
Date: Sat, 22 May 2021 15:24:29 +0200
Subject: [PATCH] Fix sign when using pv as proxy for grid power

---
 core/site.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/core/site.go b/core/site.go
index 593cf0b54..124a7076b 100644
--- a/core/site.go
+++ b/core/site.go
@@ -262,7 +262,7 @@ func (site *Site) updateMeters() error {
 
 	// allow using PV as estimate for grid power
 	if site.gridMeter == nil {
-		site.gridPower = site.pvPower
+		site.gridPower = -site.pvPower
 	}
 
 	return err