BlueGreen Voltage Management 8 March 2018 Paul Silcock, Chief Technical Officer 1
Why Manage Voltage? • Reduce electricity consumption • Save money • Save the planet • Protect appliances • Monitor electricity use Slide 2
Distribution Networks Voltage supplied to customers varies over time in response to changing loads. Network operators must ensure that supplies are kept within the legislated voltage range. 380V ± 6% 220V ± 6% 14/03/2018 Slide 3
Voltage Variance • Electricity supplies are not normally at the nominal voltage • Higher voltage produces higher consumption and reduced appliance life • Voltage below the minimum can cause brownout and damage to appliances Slide 4
About Supply Voltages Supply voltage over 24 hours Supply voltages are typically at the upper end of the range to allow for increased loads. 14/03/2018 Slide 5
What Do Our Products Do? • BlueGreen products maintain a constant voltage in the home and workplace – reducing consumption and bills – protecting appliances from damaging voltages – extending appliance life – providing consumption and savings data Slide 6
See How Much You Are Saving! • App is available on iOS and Android • Reports live and historic data • Next: Aggregated data for landlords and commercial applications Slide 7
BlueGreen Technology Concept The BlueGreen drives the transformer primary with a signal whose magnitude is continuously adjusted to create the required waveform on the secondary. This induced secondary voltage is added to or subtracted from the supply to create the desired load voltage. Input Voltage (Primary winding) Secondary Winding Voltage Output Voltage (opposes the primary voltage) (Input Voltage – Secondary Voltage) Slide 8
Power Reduction Demonstration Voltage (V) Power (W) 14/03/2018 Slide 9
Liverpool John Moores University Testing • Tests sought to establish benefits of BlueGreen technology • Testing completed in February 2018 Slide 10
Description of Tests • Each appliance was operated at average UK voltage and then at regulated voltage • Aggregated load was tested over a 24-hour period Slide 11
Power (W) 1000 100 200 300 400 500 600 700 800 900 0 0:00 1:00 2:00 3:00 4:00 7.5% Energy Reduction 5:00 6:00 Test Results 7:00 8:00 9:00 10:00 11:00 12:00 13:00 14:00 245V Measured 15:00 16:00 17:00 18:00 19:00 220V Measured 20:00 21:00 22:00 23:00 Slide 12
BlueGreen in India • We have units deployed in Europe, Australia, Uruguay and Argentina • We seek commercial traction in India Slide 13
BlueGreen Products Residential Products Commercial Products Distribution Network Management Polyphase Products Slide 14
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