Energy Monitor Real-time Electricity Monitoring updated once every minute. We were consuming about 10.000 kWh a year, way to much! For years I was thinking about a plan to measure the electricity automatically. With this little project I was able to reduce the electricity from 10.000 kWh to 6635 kWh. Because of the accurate and minute by minute reading of electricity consumption I became much more aware of it all. I found out that I was consuming 0.600 kWh at night! With simple things like unplugging adapters of my cellular (GSM) and kill standby of the harddiskrecorder, computers and television I was able to reduce the power to around 370 Watts. I also discovered that there are a lot of power adapters which consume a lot of energy with doing nothing, so I use now switching power adapters which have a high performance and so consume much less energy. The energy monitor is automatically plugged in my Home Control System which adds nice little features like for example getting a mail on your cellular (GSM) if the power consumption is higher then 500 Watt and there is no one at home. I really think automating your home or business and controlling your energy can help to reduce the worlds growing energy problem (2003). Current Electricity consumption (kW) The current electricity consumption at this moment is: kW Real-time Electricity Counters The Real-time electricity counters below are updated every hour. The Right one is the night counter (night-rate) and the left on is the day counter (day-rate). The counters are exactly synchronic with the counters of the power company, so we don't have to write it down! Day: kWh Night: kWh Electricity used (kWh) Year High Rate Euro Low Rate Euro Total Total Euro 2012 283,00 69,56 358,00 74,75 641,00 144,31 2011 2.560,00 - 3.170,00 - 5.730,00 - 2010 2.649,00 - 3.375,00 - 6.024,00 - 2009 2.390,00 - 3.186,00 - 5.576,00 - 2008 2.880,00 - 4.030,00 - 6.910,00 - 2007 2.699,00 - 3.834,00 - 6.533,00 - 2006 2.853,00 - 4.132,00 - 6.985,00 - 2005 2.674,00 - 3.925,00 - 6.599,00 - 2004 2.602,00 - 4.033,00 - 6.635,00 - 2003 4.311,00 - 5.706,00 - 10.017,00 - How is it Done? Real-time Electricity Monitoring A infrared-sensor is optical connected to the flashing led on the electricity meter of the power company and reads the total consumption we use. The led on the meter flashes 480 times for every Kilowatt (kW). The pulse is counted with the RFXmeter from RFXCOM and once every 30 seconds my home automation system receives wireless the amount of pulses (led flashes) counted. All the data is saved in a SQL database which I can query and display on the webpage's. If you want the exact schematics click on the link above or on the image below.

Chart Electricity used last 24 hours The chart below displays the last 24 hours in Kilowatt hour (kWh) updated real-time. Move over the chart bars to see the tool tip with the exact usage per hour. Chart Electricity used last 30 days Move over the chart bars to see the tool tip with the exact usage per day. Chart Electricity used last 30 Weeks Move over the chart bars to see the tool tip with the exact usage per week. Chart Electricity used last 24 Months Move over the chart bars to see the tool tip with the exact usage per month. Electricity Data Date Time Hour Reads Watt Day Use Counter Night Counter Day 4-2-2012 19:03 19 7 104,00 21.194,00 1.488,31 1.234,16 4-2-2012 18:59 18 112 1.894,00 21.090,00 1.488,21 1.234,16 4-2-2012 17:59 17 111 3.668,00 19.196,00 1.486,32 1.234,16 4-2-2012 16:59 16 112 1.814,00 15.528,00 1.482,65 1.234,16 4-2-2012 15:59 15 112 1.918,00 13.714,00 1.480,84 1.234,16 4-2-2012 14:59 14 110 2.832,00 11.796,00 1.478,92 1.234,16 4-2-2012 13:59 13 111 1.296,00 8.964,00 1.476,09 1.234,16 4-2-2012 12:59 12 112 1.956,00 7.668,00 1.474,79 1.234,16 4-2-2012 11:59 11 112 606,00 5.712,00 1.472,83 1.234,16 4-2-2012 10:59 10 112 466,00 5.106,00 1.472,22 1.234,16 4-2-2012 09:59 9 112 420,00 4.640,00 1.471,75 1.234,16 4-2-2012 08:59 8 110 398,00 4.220,00 1.471,33 1.234,16