diff --git a/esp32/include/ControllerConfiguration.h b/esp32/include/ControllerConfiguration.h
index f0b6b8d..40206d3 100644
--- a/esp32/include/ControllerConfiguration.h
+++ b/esp32/include/ControllerConfiguration.h
@@ -127,7 +127,7 @@
 
 #define FIRMWARE_BASENAME "PlantControl"
 #define FIRMWARE_NAME FIRMWARE_BASENAME FIRMWARE_FEATURE1 FIRMWARE_FEATURE2
-#define FIRMWARE_VERSIONNMUMBER "3.012"
+#define FIRMWARE_VERSIONNMUMBER "3.013"
 
 #ifdef HWREVISION07
     #define FIRMWARE_VERSION FIRMWARE_VERSIONNMUMBER " HW0.7"
@@ -144,7 +144,7 @@
 #ifdef HWREVISION07
 #define SOLAR_VOLT_FACTOR           (4.0306f) /**< 100k and 33k voltage dividor */
 #else
-#define SOLAR_VOLT_FACTOR           (22.0f)
+#define SOLAR_VOLT_FACTOR           (11.0f) /**< Configuratiion before dd3888ba52f51338788820a933c0a6f4bee78ed5 */
 #endif
 #define BATTSENSOR_INDEX_SOLAR      0
 #define BATTSENSOR_INDEX_BATTERY    1