harvi by myenergi is a clever little device that enables the zappi and eddi products to be installed without using a wired current transformer (CT) for measuring the grid and or generation power; instead the CT is connected to harvi.

No power source is needed for harvi – the energy from the CT is harvested and used to transmit the measurement signal to the zappi or eddi. This means batteries or electrical wiring are eliminated!


  • Wireless power sensor

  • Energy harvesting – no batteries or electrical wiring required

  • Uses standard CTs supplied with eddi & zappi products

  • 3 CT inputs for 3-phase supplies

  • Grid / Generation / Storage measurement configurable

  • Fast & accurate measurement

  • Wall mountable

About myenergi

myenergi are made up of experts, activists and inventors based in the UK. Their mission is to change the world through green technology and save customers money on their energy bills. 

Please contact us for personalised quotation for installation.*

*Only available in Suffolk, North Essex and South Norfolk

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