diff --git a/controller/current_cost/README b/controller/current_cost/README
new file mode 100644
index 0000000..010d0c2
--- /dev/null
+++ b/controller/current_cost/README
@@ -0,0 +1,5 @@
+Koeln, 16.09.2010
+Weitere Infos unter http://umweltsuen.de
+oder bei
+Roland Kletzing
+devzero@web.de
diff --git a/controller/current_cost/create-rrd.sh b/controller/current_cost/create-rrd.sh
new file mode 100755
index 0000000..2c4cb5f
--- /dev/null
+++ b/controller/current_cost/create-rrd.sh
@@ -0,0 +1,30 @@
+#!/bin/sh
+rrdtool create /path/to/your/powertemp.rrd --step 5 \
+DS:Power1:GAUGE:180:0:10000 \
+DS:Power2:GAUGE:180:0:10000 \
+DS:Power3:GAUGE:180:0:10000 \
+DS:Temp:GAUGE:180:-50:100 \
+RRA:AVERAGE:0.5:1:3200 \
+RRA:AVERAGE:0.5:6:3200 \
+RRA:AVERAGE:0.5:36:3200 \
+RRA:AVERAGE:0.5:144:3200 \
+RRA:AVERAGE:0.5:1008:3200 \
+RRA:AVERAGE:0.5:4320:3200 \
+RRA:AVERAGE:0.5:52560:3200 \
+RRA:AVERAGE:0.5:525600:3200 \
+RRA:MIN:0.5:1:3200 \
+RRA:MIN:0.5:6:3200 \
+RRA:MIN:0.5:36:3200 \
+RRA:MIN:0.5:144:3200 \
+RRA:MIN:0.5:1008:3200 \
+RRA:MIN:0.5:4320:3200 \
+RRA:MIN:0.5:52560:3200 \
+RRA:MIN:0.5:525600:3200 \
+RRA:MAX:0.5:1:3200 \
+RRA:MAX:0.5:6:3200 \
+RRA:MAX:0.5:36:3200 \
+RRA:MAX:0.5:144:3200 \
+RRA:MAX:0.5:1008:3200 \
+RRA:MAX:0.5:4320:3200 \
+RRA:MAX:0.5:52560:3200 \
+RRA:MAX:0.5:525600:3200
diff --git a/controller/current_cost/crontab.example b/controller/current_cost/crontab.example
new file mode 100644
index 0000000..aafd7ec
--- /dev/null
+++ b/controller/current_cost/crontab.example
@@ -0,0 +1,14 @@
+# Add these to your /etc/crontab. This is just an example. Change it to fit your needs
+# make 15 minute graphs every minute
+* * * * * root (touch /root/currentcost/15m.do)
+# make hour graphs every 10 minutes
+*/10 * * * * root (touch /root/currentcost/1h.do)
+# make 12h graphs every half hour
+*/30 * * * * root (touch /root/currentcost/12h.do)
+# make day and week graph every full hour
+0 * * * * root (touch /root/currentcost/1d.do)
+0 * * * * root (touch /root/currentcost/1w.do)
+# make month, quarter and year graphs once a day
+0 0 * * * root (touch /root/currentcost/1m.do)
+0 0 * * * root (touch /root/currentcost/3m.do)
+0 0 * * * root (touch /root/currentcost/1y.do)
diff --git a/controller/current_cost/doall.sh b/controller/current_cost/doall.sh
new file mode 100755
index 0000000..400914b
--- /dev/null
+++ b/controller/current_cost/doall.sh
@@ -0,0 +1,2 @@
+#!/bin/bash
+touch 15m.do 1h.do 12h.do 1d.do 1w.do 1m.do 3m.do 1y.do
diff --git a/controller/current_cost/fetchdata.pl b/controller/current_cost/fetchdata.pl
new file mode 100755
index 0000000..b32306d
--- /dev/null
+++ b/controller/current_cost/fetchdata.pl
@@ -0,0 +1,34 @@
+#!/usr/bin/perl -w
+# This program reads data from a Current Cost device via serial port and puts it into an RRD database (also prints on console)
+
+#Avoid Line buffering for stdout. Avoids problems when sending the script output to a pipe
+local $| = 1;
+
+use strict;
+use Device::SerialPort qw( :PARAM :STAT 0.07 );
+
+#USB  (change into /dev/ttyS0 for Serial port)
+my $PORT = "/dev/ttyUSB0";
+
+my $ob = Device::SerialPort->new($PORT);
+
+# change into appropriate baudrate. Envi classic needs $ob->baudrate(57600); 
+$ob->baudrate(57600);
+$ob->write_settings;
+
+open(SERIAL, "+>$PORT");
+while (my $line = <SERIAL>) {
+
+# Envi White old 
+#    if ($line =~ m!<ch1><watts>0*(\d+)</watts></ch1>.*<ch2><watts>0*(\d+)</watts></ch2>.*<ch3><watts>0*(\d+)</watts></ch3><tmpr> *([\-\d.]+)</tmpr>!) {
+
+#Envi Black >CC128-v0.12 
+ if ($line =~ m!<tmpr> *([\-\d.]+)</tmpr>.*<ch1><watts>0*(\d+)</watts></ch1>.*<ch2><watts>0*(\d+)</watts></ch2>.*<ch3><watts>0*(\d+)</watts></ch3>!) {
+        my $watts1 = $2;
+        my $watts2 = $3;
+        my $watts3 = $4;
+        my $temp = $1;
+        print "$watts1, $watts2, $watts3, $temp\n";
+        system("rrdupdate","/path/to/your/powertemp.rrd","N:$watts1:$watts2:$watts3:$temp");
+    }
+}
diff --git a/controller/current_cost/makegraphs.sh b/controller/current_cost/makegraphs.sh
new file mode 100755
index 0000000..a5592db
--- /dev/null
+++ b/controller/current_cost/makegraphs.sh
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+#!/bin/bash
+set -x
+
+export LC_ALL=de_DE.UTF-8
+
+export param1='--end now --width 880 --height 300 --slope-mode --vertical-label VoltAmpere --lower-limit 0 --alt-autoscale-max'
+
+export param2='DEF:Power1=powertemp.rrd:Power1:AVERAGE 
+	       DEF:Power2=powertemp.rrd:Power2:AVERAGE 
+	       DEF:Power3=powertemp.rrd:Power3:AVERAGE
+               CDEF:Ln1=Power1,Power1,UNKN,IF 
+	       CDEF:Ln2=Power1,Power1,Power2,+,UNKN,IF 
+	       CDEF:Ln3=Power3,Power1,Power2,Power3,+,+,UNKN,IF
+               AREA:Power1#A0A0FF:Phase1 
+	       AREA:Power2#A0FFA0:Phase2:STACK 
+	       AREA:Power3#FFA0A0:Phase3\j:STACK
+               LINE1:Ln3#AA0000 
+	       LINE1:Ln2#00AA00 
+	       LINE1:Ln1#0000AA'
+
+export param3='GPRINT:Power1:LAST:%2.1lf%sVA 
+	       GPRINT:Power2:LAST:%2.1lf%sVA 
+	       GPRINT:Power3:LAST:%2.1lf%sVA\j'
+
+export basepath='/path/to/your/webserver/htdocs/asubdir'
+
+get-ts () {
+ export ts=`date +"Graph vom %A, %d.%m.%Y um %H:%M Uhr"`
+}
+
+mvimg () {
+ rm $basepath/$1
+ mv $basepath/tmp.png $basepath/$1
+}
+
+mkimg () {
+ if [ -e "$1.do" ];then
+  rm $1.do
+  get-ts
+  title="Energieverbrauch $2 - $ts"  
+  if [ $1 == "15m" ];then
+    rrdtool graph $basepath/tmp.png --title "$title" --start end-$1 $param1 $param2 $param3
+   else
+    rrdtool graph $basepath/tmp.png --title "$title" --start end-$1 $param1 $param2
+  fi
+  mvimg power-$1.png
+ fi 
+}
+
+while true;do 
+ mkimg 15m "letzte 15 Minuten"
+ mkimg 1h  "letzte Stunde"
+ mkimg 12h "letzte 12 Stunden"
+ mkimg 1d  "letzter Tag" 
+ mkimg 1w  "letzte Woche"
+ mkimg 1m  "letzter Monat"
+ mkimg 3m  "letztes Quartal"
+ mkimg 1y  "letztes Jahr"
+sleep 10;
+done