diff --git a/dao/CHANGELOG.md b/dao/CHANGELOG.md
index 1a2e54e8..601fd2e5 100644
--- a/dao/CHANGELOG.md
+++ b/dao/CHANGELOG.md
@@ -1,5 +1,8 @@
 # Changelog 刀 DAO
 # Day Ahead Optimizer
+# 2026.01.1
+Fix error with space(s) in solar_name
+
  # 2026.01.0
 With this new stable release comes a second optional method for predicting the porduction of your solar-devices.
 This if fully documented in the wiki: https://github.com/corneel27/day-ahead/wiki/2.-Installatie-en-basis-configuratie#pv-productie-voorspellen <br>
diff --git a/dao/config.yaml b/dao/config.yaml
index 07ebc7f0..a401738c 100644
--- a/dao/config.yaml
+++ b/dao/config.yaml
@@ -1,6 +1,6 @@
 ---
 name: 刀 Day Ahead Optimizer
-version: 2026.01.0
+version: 2026.01.1
 slug: day_ahead_opt
 description: Home Assistant Community Add-ons for day ahead optimizations
 url: https://github.com/corneel27/day-ahead
diff --git a/dao/prog/day_ahead.py b/dao/prog/day_ahead.py
index 0f31ec62..ac65a8fb 100644
--- a/dao/prog/day_ahead.py
+++ b/dao/prog/day_ahead.py
@@ -247,7 +247,7 @@ def calc_optimum(
         start_hour_dt = dt.datetime.fromtimestamp(start_hour)
         for s in range(solar_num):
             if solar_ml_prediction[s]:
-                solar_name = self.solar[s]["name"]
+                solar_name = self.solar[s]["name"].replace(" ", "_")
                 solar_prog = solar_predictor.predict_solar_device(
                     self.solar[s], start_hour_dt, end_prog
                 )
@@ -268,7 +268,7 @@ def calc_optimum(
                     self.config.get(["ml_prediction"], solar_option, "False").lower()
                     == "true"
                 ):
-                    solar_name = solar_option["name"]
+                    solar_name = solar_option["name"].replace(" ", "_")
                     solar_prog = solar_predictor.predict_solar_device(
                         solar_option, start_hour_dt, end_prog
                     )
@@ -306,9 +306,10 @@ def calc_optimum(
                 hour_fraction.append(self.interval_s / 3600)
                 interval_fraction.append(1)
             for s in range(solar_num):
+                solar_name = self.solar[s]["name"].replace(" ", "_")
                 if solar_ml_prediction[s]:
                     prod = (
-                        max(0, getattr(row, self.solar[s]["name"]))
+                        max(0, getattr(row, solar_name))
                         * interval_fraction[-1]
                     )
                 else:
@@ -325,6 +326,7 @@ def calc_optimum(
             for b in range(B):
                 for s in range(len(self.battery_options[b]["solar"])):
                     solar_option = self.battery_options[b]["solar"][s]
+                    solar_name = solar_option["name"].replace(" ", "_")
                     if pv_dc_num <= 9:
                         pv_dc_varcode.append("pv_dc_" + str(pv_dc_num))
                     pv_dc_num += 1
@@ -335,7 +337,7 @@ def calc_optimum(
                         == "true"
                     ):
                         prod = (
-                            max(0, getattr(row, solar_option["name"]))
+                            max(0, getattr(row, solar_name))
                             * interval_fraction[-1]
                         )
                     else:
diff --git a/release-testing/CHANGELOG.md b/release-testing/CHANGELOG.md
index f83824d8..dbae21ed 100644
--- a/release-testing/CHANGELOG.md
+++ b/release-testing/CHANGELOG.md
@@ -1,5 +1,8 @@
 # Changelog 刀 DAO
 # Day Ahead Optimizer
+# 2026.01.1.rc1
+Fix error with space(s) in solar_name
+
 # 2026.01.0.rc9
 This version is identical to stable version 2026.01.0
 
diff --git a/release-testing/config.yaml b/release-testing/config.yaml
index 8b20da9a..1ce87b6a 100644
--- a/release-testing/config.yaml
+++ b/release-testing/config.yaml
@@ -1,6 +1,6 @@
 ---
 name: 刀 Day Ahead Optimizer (TESTING)
-version: 2026.01.0.rc9
+version: 2026.01.1.rc1
 stage: experimental
 slug: day_ahead_opt-testing
 description: Beta version of DAO. Use only for testing!