From f126c8c70bc69c75e049b0a0cce7008bae087618 Mon Sep 17 00:00:00 2001
From: andig <cpuidle@gmail.com>
Date: Thu, 16 Apr 2026 09:47:18 +0200
Subject: [PATCH] chore: limit optimizer to 2 days horizon

---
 core/site_optimizer.go | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/core/site_optimizer.go b/core/site_optimizer.go
index cede325c5..12c8a5b3e 100644
--- a/core/site_optimizer.go
+++ b/core/site_optimizer.go
@@ -119,8 +119,11 @@ func (site *Site) optimizerUpdate(battery []types.Measurement) error {
 	if solarTariff != nil && len(solar) > 0 {
 		minLen = min(minLen, len(solar))
 	}
-	const expectedSlots = 8
-	if minLen < expectedSlots {
+
+	// limit to 2 days for sake of performance
+	minLen = min(96, minLen)
+
+	if expectedSlots := 8; minLen < expectedSlots {
 		if solarTariff != nil {
 			return fmt.Errorf("not enough forecast slots for meaningful optimization: %d < %d (grid=%d, feedIn=%d, solar=%d)", minLen, expectedSlots, len(grid), len(feedIn), len(solar))
 		}