diff --git a/node-red-flows/meters.json b/node-red-flows/meters.json
index 1d54d6f..79be5ba 100644
--- a/node-red-flows/meters.json
+++ b/node-red-flows/meters.json
@@ -539,108 +539,6 @@
             ]
         ]
     },
-    {
-        "id": "22bdca2522a4b3c9",
-        "type": "function",
-        "z": "f96eea4d4a3a345d",
-        "name": "format and save to global var",
-        "func": "temp = parseFloat(msg.payload * 0.001).toFixed(2);\nglobal.set(\"einspeisung_l1_import\", temp)\nreturn msg;",
-        "outputs": 1,
-        "noerr": 0,
-        "initialize": "",
-        "finalize": "",
-        "libs": [],
-        "x": 940,
-        "y": 500,
-        "wires": [
-            []
-        ]
-    },
-    {
-        "id": "51dc86ef4b4e31fd",
-        "type": "function",
-        "z": "f96eea4d4a3a345d",
-        "name": "format and save to global var",
-        "func": "temp = parseFloat(msg.payload * 0.001).toFixed(2);\nglobal.set(\"einspeisung_l2_import\", temp)\nreturn msg;",
-        "outputs": 1,
-        "noerr": 0,
-        "initialize": "",
-        "finalize": "",
-        "libs": [],
-        "x": 940,
-        "y": 540,
-        "wires": [
-            []
-        ]
-    },
-    {
-        "id": "804899fa9686be16",
-        "type": "function",
-        "z": "f96eea4d4a3a345d",
-        "name": "format and save to global var",
-        "func": "temp = parseFloat(msg.payload * 0.001).toFixed(2);\nglobal.set(\"einspeisung_l3_import\", temp)\nreturn msg;",
-        "outputs": 1,
-        "noerr": 0,
-        "initialize": "",
-        "finalize": "",
-        "libs": [],
-        "x": 940,
-        "y": 580,
-        "wires": [
-            []
-        ]
-    },
-    {
-        "id": "ba0021b15f94fc41",
-        "type": "function",
-        "z": "f96eea4d4a3a345d",
-        "name": "format and save to global var",
-        "func": "temp = parseFloat(msg.payload * 0.001).toFixed(2);\nglobal.set(\"einspeisung_l1_export\", temp)\nreturn msg;",
-        "outputs": 1,
-        "noerr": 0,
-        "initialize": "",
-        "finalize": "",
-        "libs": [],
-        "x": 940,
-        "y": 620,
-        "wires": [
-            []
-        ]
-    },
-    {
-        "id": "68157d83b4f176f5",
-        "type": "function",
-        "z": "f96eea4d4a3a345d",
-        "name": "format and save to global var",
-        "func": "temp = parseFloat(msg.payload * 0.001).toFixed(2);\nglobal.set(\"einspeisung_l2_export\", temp)\nreturn msg;",
-        "outputs": 1,
-        "noerr": 0,
-        "initialize": "",
-        "finalize": "",
-        "libs": [],
-        "x": 940,
-        "y": 660,
-        "wires": [
-            []
-        ]
-    },
-    {
-        "id": "4d12b6c71b023fc8",
-        "type": "function",
-        "z": "f96eea4d4a3a345d",
-        "name": "format and save to global var",
-        "func": "temp = parseFloat(msg.payload * 0.001).toFixed(2);\nglobal.set(\"einspeisung_l3_export\", temp)\nreturn msg;",
-        "outputs": 1,
-        "noerr": 0,
-        "initialize": "",
-        "finalize": "",
-        "libs": [],
-        "x": 940,
-        "y": 700,
-        "wires": [
-            []
-        ]
-    },
     {
         "id": "58942376d9fbdd07",
         "type": "inject",
@@ -675,7 +573,7 @@
         "type": "function",
         "z": "f96eea4d4a3a345d",
         "name": "Calculate kWh of sum power",
-        "func": "//init counters if not defined\nif (global.get(\"einspeisung_total_import\") === undefined) {\n    global.set(\"einspeisung_total_import\", 0);\n}\nif (global.get(\"einspeisung_total_export\") === undefined) {\n    global.set(\"einspeisung_total_export\", 0);\n}\n//get counters from global variable\nvar total_import = global.get(\"einspeisung_total_import\");\nvar total_export = global.get(\"einspeisung_total_export\");\nvar check = \"Nothing\";\n\nif (msg.payload < 0) {\n    total_export += Math.abs(msg.payload);\n    check = \"Export: \" + Math.abs(msg.payload) + \" kWh\";\n}\nif (msg.payload > 0) {\n    total_import += Math.abs(msg.payload);\n    check = \"Import: \" + Math.abs(msg.payload) + \" kWh\";\n}\n\nglobal.set(\"einspeisung_total_import\", total_import);\nglobal.set(\"einspeisung_total_export\", total_export);\nmsg.payload = {total_import: total_import, total_export: total_export, check: check}\nreturn msg;",
+        "func": "//init counters if not defined\nif (global.get(\"einspeisung_total_import\") === undefined) {\n    global.set(\"einspeisung_total_import\", 0);\n}\nif (global.get(\"einspeisung_total_export\") === undefined) {\n    global.set(\"einspeisung_total_export\", 0);\n}\n//get counters from global variable\nvar total_import = global.get(\"einspeisung_total_import\");\nvar total_export = global.get(\"einspeisung_total_export\");\nvar check = \"Nothing\";\n\n//check if usage (payload) is positive=import or negative=export\n//add diff to import or export counters\nif (msg.payload < 0) {\n    total_export += Math.abs(msg.payload);\n    check = \"Export: \" + Math.abs(msg.payload) + \" kWh\";\n}\nif (msg.payload > 0) {\n    total_import += Math.abs(msg.payload);\n    check = \"Import: \" + Math.abs(msg.payload) + \" kWh\";\n}\n\n//write result back to global vars and send a msg for debug\nglobal.set(\"einspeisung_total_import\", total_import);\nglobal.set(\"einspeisung_total_export\", total_export);\nmsg.payload = {total_import: total_import, total_export: total_export, check: check}\nreturn msg;",
         "outputs": 1,
         "noerr": 0,
         "initialize": "",
@@ -714,7 +612,7 @@
         "initialize": "",
         "finalize": "",
         "libs": [],
-        "x": 1440,
+        "x": 880,
         "y": 580,
         "wires": [
             []
@@ -724,7 +622,7 @@
         "id": "d905c25120cfdfd3",
         "type": "inject",
         "z": "f96eea4d4a3a345d",
-        "name": "Inject once",
+        "name": "Reset or init all counters (Set to Zero)",
         "props": [
             {
                 "p": "payload"
@@ -741,7 +639,7 @@
         "topic": "",
         "payload": "",
         "payloadType": "date",
-        "x": 1250,
+        "x": 260,
         "y": 580,
         "wires": [
             [
@@ -802,7 +700,7 @@
         "type": "function",
         "z": "f96eea4d4a3a345d",
         "name": "Calculate kWh of phase 1 power",
-        "func": "//init counters if not defined\nif (global.get(\"einspeisung_l1_import\") === undefined) {\n    global.set(\"einspeisung_l1_import\", 0);\n}\nif (global.get(\"einspeisung_l1_export\") === undefined) {\n    global.set(\"einspeisung_l1_export\", 0);\n}\n//get counters from global variable\nvar total_import = global.get(\"einspeisung_l1_import\");\nvar total_export = global.get(\"einspeisung_l1_export\");\nvar check = \"Nothing\";\n\nif (msg.payload < 0) {\n    total_export += Math.abs(msg.payload);\n    check = \"Export: \" + Math.abs(msg.payload) + \" kWh\";\n}\nif (msg.payload > 0) {\n    total_import += Math.abs(msg.payload);\n    check = \"Import: \" + Math.abs(msg.payload) + \" kWh\";\n}\n\nglobal.set(\"einspeisung_l1_import\", total_import);\nglobal.set(\"einspeisung_l1_export\", total_export);\nmsg.payload = {total_import: total_import, total_export: total_export, check: check}\nreturn msg;",
+        "func": "//init counters if not defined\nif (global.get(\"einspeisung_l1_import\") === undefined) {\n    global.set(\"einspeisung_l1_import\", 0);\n}\nif (global.get(\"einspeisung_l1_export\") === undefined) {\n    global.set(\"einspeisung_l1_export\", 0);\n}\n//get counters from global variable\nvar total_import = global.get(\"einspeisung_l1_import\");\nvar total_export = global.get(\"einspeisung_l1_export\");\nvar check = \"Nothing\";\n\n//check if usage (payload) is positive=import or negative=export\n//add diff to import or export counters\nif (msg.payload < 0) {\n    total_export += Math.abs(msg.payload);\n    check = \"Export: \" + Math.abs(msg.payload) + \" kWh\";\n}\nif (msg.payload > 0) {\n    total_import += Math.abs(msg.payload);\n    check = \"Import: \" + Math.abs(msg.payload) + \" kWh\";\n}\n//write result back to global vars and send a msg for debug\nglobal.set(\"einspeisung_l1_import\", total_import);\nglobal.set(\"einspeisung_l1_export\", total_export);\nmsg.payload = {total_import: total_import, total_export: total_export, check: check}\nreturn msg;",
         "outputs": 1,
         "noerr": 0,
         "initialize": "",
@@ -819,7 +717,7 @@
         "type": "function",
         "z": "f96eea4d4a3a345d",
         "name": "Calculate kWh of phase 2 power",
-        "func": "//init counters if not defined\nif (global.get(\"einspeisung_l2_import\") === undefined) {\n    global.set(\"einspeisung_l2_import\", 0);\n}\nif (global.get(\"einspeisung_l2_export\") === undefined) {\n    global.set(\"einspeisung_l2_export\", 0);\n}\n//get counters from global variable\nvar total_import = global.get(\"einspeisung_l2_import\");\nvar total_export = global.get(\"einspeisung_l2_export\");\nvar check = \"Nothing\";\n\nif (msg.payload < 0) {\n    total_export += Math.abs(msg.payload);\n    check = \"Export: \" + Math.abs(msg.payload) + \" kWh\";\n}\nif (msg.payload > 0) {\n    total_import += Math.abs(msg.payload);\n    check = \"Import: \" + Math.abs(msg.payload) + \" kWh\";\n}\n\nglobal.set(\"einspeisung_l2_import\", total_import);\nglobal.set(\"einspeisung_l2_export\", total_export);\nmsg.payload = {total_import: total_import, total_export: total_export, check: check}\nreturn msg;",
+        "func": "//init counters if not defined\nif (global.get(\"einspeisung_l2_import\") === undefined) {\n    global.set(\"einspeisung_l2_import\", 0);\n}\nif (global.get(\"einspeisung_l2_export\") === undefined) {\n    global.set(\"einspeisung_l2_export\", 0);\n}\n//get counters from global variable\nvar total_import = global.get(\"einspeisung_l2_import\");\nvar total_export = global.get(\"einspeisung_l2_export\");\nvar check = \"Nothing\";\n\n//check if usage (payload) is positive=import or negative=export\n//add diff to import or export counters\nif (msg.payload < 0) {\n    total_export += Math.abs(msg.payload);\n    check = \"Export: \" + Math.abs(msg.payload) + \" kWh\";\n}\nif (msg.payload > 0) {\n    total_import += Math.abs(msg.payload);\n    check = \"Import: \" + Math.abs(msg.payload) + \" kWh\";\n}\n\n//write result back to global vars and send a msg for debug\nglobal.set(\"einspeisung_l2_import\", total_import);\nglobal.set(\"einspeisung_l2_export\", total_export);\nmsg.payload = {total_import: total_import, total_export: total_export, check: check}\nreturn msg;",
         "outputs": 1,
         "noerr": 0,
         "initialize": "",
@@ -836,7 +734,7 @@
         "type": "function",
         "z": "f96eea4d4a3a345d",
         "name": "Calculate kWh of phase 3 power",
-        "func": "//init counters if not defined\nif (global.get(\"einspeisung_l3_import\") === undefined) {\n    global.set(\"einspeisung_l3_import\", 0);\n}\nif (global.get(\"einspeisung_l3_export\") === undefined) {\n    global.set(\"einspeisung_l3_export\", 0);\n}\n//get counters from global variable\nvar total_import = global.get(\"einspeisung_l3_import\");\nvar total_export = global.get(\"einspeisung_l3_export\");\nvar check = \"Nothing\";\n\nif (msg.payload < 0) {\n    total_export += Math.abs(msg.payload);\n    check = \"Export: \" + Math.abs(msg.payload) + \" kWh\";\n}\nif (msg.payload > 0) {\n    total_import += Math.abs(msg.payload);\n    check = \"Import: \" + Math.abs(msg.payload) + \" kWh\";\n}\n\nglobal.set(\"einspeisung_l3_import\", total_import);\nglobal.set(\"einspeisung_l3_export\", total_export);\nmsg.payload = {total_import: total_import, total_export: total_export, check: check}\nreturn msg;",
+        "func": "//init counters if not defined\nif (global.get(\"einspeisung_l3_import\") === undefined) {\n    global.set(\"einspeisung_l3_import\", 0);\n}\nif (global.get(\"einspeisung_l3_export\") === undefined) {\n    global.set(\"einspeisung_l3_export\", 0);\n}\n//get counters from global variable\nvar total_import = global.get(\"einspeisung_l3_import\");\nvar total_export = global.get(\"einspeisung_l3_export\");\nvar check = \"Nothing\";\n\n//check if usage (payload) is positive=import or negative=export\n//add diff to import or export counters\nif (msg.payload < 0) {\n    total_export += Math.abs(msg.payload);\n    check = \"Export: \" + Math.abs(msg.payload) + \" kWh\";\n}\nif (msg.payload > 0) {\n    total_import += Math.abs(msg.payload);\n    check = \"Import: \" + Math.abs(msg.payload) + \" kWh\";\n}\n\n//write result back to global vars and send a msg for debug\nglobal.set(\"einspeisung_l3_import\", total_import);\nglobal.set(\"einspeisung_l3_export\", total_export);\nmsg.payload = {total_import: total_import, total_export: total_export, check: check}\nreturn msg;",
         "outputs": 1,
         "noerr": 0,
         "initialize": "",
@@ -847,5 +745,45 @@
         "wires": [
             []
         ]
+    },
+    {
+        "id": "8fe908e8e4e30699",
+        "type": "comment",
+        "z": "f96eea4d4a3a345d",
+        "name": "Write all values into global vars, to export them via a JSON-HTTP-API",
+        "info": "Write all values into global vars,\nto export them via a JSON-HTTP-API",
+        "x": 790,
+        "y": 80,
+        "wires": []
+    },
+    {
+        "id": "c648f182292dd923",
+        "type": "comment",
+        "z": "f96eea4d4a3a345d",
+        "name": "Read all global vars an create a JObject so we can poll it via HTTP",
+        "info": "Read all global vars an create a JObject so we can poll it via HTTP",
+        "x": 700,
+        "y": 820,
+        "wires": []
+    },
+    {
+        "id": "b38818b5fb6846af",
+        "type": "comment",
+        "z": "f96eea4d4a3a345d",
+        "name": "You can save global vars to a context file, if you enable \"Context storage\" in your Node-RED settings.json",
+        "info": "You can save global vars to a context file, if you enable \"Context storage\" in your Node-RED settings.json",
+        "x": 850,
+        "y": 720,
+        "wires": []
+    },
+    {
+        "id": "2413b4c69ccefdfb",
+        "type": "comment",
+        "z": "f96eea4d4a3a345d",
+        "name": "With Context storage all global vars are persisted bedween Node RED restarts",
+        "info": "With Context storage all global vars are persisted bedween Node RED restarts",
+        "x": 740,
+        "y": 760,
+        "wires": []
     }
 ]
\ No newline at end of file