From 76f29cb7cb3febfe890e47bda37b6951be05b0cd Mon Sep 17 00:00:00 2001
From: Darice L Guittet <dguittet@nrel.gov>
Date: Fri, 6 Dec 2024 15:56:26 -0700
Subject: [PATCH] Solar interpolation macro (#1956)

* fix #1777

* account for header rows in input_data
---
 deploy/runtime/macros/Solar Resource Interpolation.lk | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/deploy/runtime/macros/Solar Resource Interpolation.lk b/deploy/runtime/macros/Solar Resource Interpolation.lk
index 866758e176..77e75dc80c 100644
--- a/deploy/runtime/macros/Solar Resource Interpolation.lk	
+++ b/deploy/runtime/macros/Solar Resource Interpolation.lk	
@@ -233,7 +233,14 @@ function identify_case(input_data, lat, long, tz){
 			cols = parse_header(input_data[line]);
 			if (cols[4] == -1){
 				case[0] = 1;
-				case[1] = 1;
+				max_hour = -1;
+				for (hr=0; hr<48; hr++){
+					max_hour = max(max_hour, input_data[hr][cols[3]]);
+				}
+				if (max_hour == 23)
+					case[1] = 0;
+				else
+					case[1] = 1;
 			}
 			else{
 				case[0] = 0;