diff --git a/conf/gcs/solar.xml b/conf/gcs/solar.xml
new file mode 100644
index 0000000000..17de1ebbf7
--- /dev/null
+++ b/conf/gcs/solar.xml
@@ -0,0 +1,41 @@
+<layout width="1024" height="768">
+  <rows>
+    <widget NAME="map2d" SIZE="500">
+      <papget type="message_field" display="text" x="5" y="125">
+        <property name="field" value="BAT:energy"/>
+        <property name="scale" value="1"/>
+        <property name="format" value="Bat: %.0fmAh"/>
+        <property name="size" value="20."/>
+        <property name="color" value="green"/>
+      </papget>
+      <papget type="message_field" display="text" x="5" y="195">
+        <property name="field" value="MPPT:values[8]"/>
+        <property name="scale" value="1e-3"/>
+        <property name="format" value="I tot: %.2fA"/>
+        <property name="size" value="20."/>
+        <property name="color" value="green"/>
+      </papget>
+      <papget type="message_field" display="text" x="5" y="230">
+        <property name="field" value="MPPT:values[5]"/>
+        <property name="scale" value="1e-3"/>
+        <property name="format" value="P sol: %.1fW"/>
+        <property name="size" value="20."/>
+        <property name="color" value="green"/>
+      </papget>
+      <papget type="message_field" display="text" x="5" y="160">
+        <property name="field" value="MPPT:values[1]"/>
+        <property name="scale" value="1e-3"/>
+        <property name="format" value="I bat: %.2fA"/>
+        <property name="size" value="20."/>
+        <property name="color" value="green"/>
+      </papget>
+    </widget>
+    <columns>
+      <rows SIZE="375">
+        <widget NAME="strips" SIZE="200"/>
+      </rows>
+      <widget NAME="aircraft" SIZE="400"/>
+      <widget NAME="alarms"/>
+    </columns>
+  </rows>
+</layout>
diff --git a/sw/airborne/modules/MPPT/MPPT.c b/sw/airborne/modules/MPPT/MPPT.c
index ba796c5c88..782a5fb212 100644
--- a/sw/airborne/modules/MPPT/MPPT.c
+++ b/sw/airborne/modules/MPPT/MPPT.c
@@ -30,9 +30,8 @@
 
 
 #define MPPT_SLAVE_ADDR 0x40
-#define NB_DATA 8
+#define NB_I2C_DATA 8
 #define MPPT_MODE_ADDR 0xf
-#define MPPT_IBAT_INDEX 1
 
 /**
  0: VBat (mV)
@@ -43,6 +42,8 @@
  5: PSol (mW)
  6: IConv (mA)
  7: PConv (mW)
+ 
+ 9: IBat + IConv
 */
 
 
@@ -67,7 +68,7 @@ static uint8_t MPPT_status;
 
 
 static uint8_t data_index = 0xff;
-int16_t MPPT_data[NB_DATA];
+static int16_t MPPT_data[NB_DATA];
 
 void MPPT_init( void ) {
   MPPT_mode = 0;
@@ -79,11 +80,11 @@ void MPPT_init( void ) {
 
 static void MPPT_ask( void ) {
   data_index++;
-  if (data_index >= NB_DATA) {
+  if (data_index >= NB_I2C_DATA) {
     /* Setting the current value */
     fbw_current_milliamp = MPPT_data[MPPT_IBAT_INDEX];
 
-
+    MPPT_data[MPPT_ITOTAL_INDEX] = MPPT_data[MPPT_IBAT_INDEX] + MPPT_data[MPPT_ICONV_INDEX];
     DOWNLINK_SEND_MPPT(DefaultChannel, NB_DATA, MPPT_data);
     data_index = 0;
   }
@@ -127,7 +128,7 @@ void MPPT_periodic( void ) {
     
     case MPPT_STATUS_READING:
       /* We got 2 bytes */
-      if (data_index < NB_DATA)
+      if (data_index < NB_I2C_DATA)
 	MPPT_data[data_index] = (i2c0_buf[0]<<8) | i2c0_buf[1];
       MPPT_status = MPPT_STATUS_IDLE;
       break;
diff --git a/sw/airborne/modules/MPPT/MPPT.h b/sw/airborne/modules/MPPT/MPPT.h
index 2a5326256a..04f4c614b3 100644
--- a/sw/airborne/modules/MPPT/MPPT.h
+++ b/sw/airborne/modules/MPPT/MPPT.h
@@ -36,6 +36,11 @@
 #define MPPT_MODE_PASSIVE 2
 #define MPPT_MODE_ACTIVE  3
 
+#define NB_DATA 9
+#define MPPT_IBAT_INDEX 1
+#define MPPT_ICONV_INDEX 6
+#define MPPT_ITOTAL_INDEX 8
+
 
 extern uint8_t MPPT_mode;
 
diff --git a/sw/airborne/modules/MPPT/sim_MPPT.c b/sw/airborne/modules/MPPT/sim_MPPT.c
index 9639d68594..8a9297f2a4 100644
--- a/sw/airborne/modules/MPPT/sim_MPPT.c
+++ b/sw/airborne/modules/MPPT/sim_MPPT.c
@@ -24,9 +24,27 @@
 
 
 #include "MPPT.h"
+#ifndef DOWNLINK_DEVICE
+#define DOWNLINK_DEVICE DOWNLINK_AP_DEVICE
+#endif
+#include "messages.h"
+#include "downlink.h"
+
+
+
+uint8_t MPPT_mode;
+
+static int16_t MPPT_data[NB_DATA];
 
 void MPPT_init( void ) {
+  uint8_t i = 0;
+
+  for(i = 0; i < NB_DATA; i++)
+    MPPT_data[i] = 42 + i;
 }
 
 void MPPT_periodic( void ) {
+  MPPT_data[MPPT_ITOTAL_INDEX] = MPPT_data[MPPT_IBAT_INDEX] + MPPT_data[MPPT_ICONV_INDEX];
+
+  RunOnceEvery(8, DOWNLINK_SEND_MPPT(DefaultChannel, NB_DATA, MPPT_data));
 }