The interesting microinverter/distributed electronics field is now officially oversupplied.

The only firm who is actually shipping is Enphase with well over 30,000 units installed. National Semi, Tigo, and Solar Edge seem to be getting some sales traction and forming partnerships with solar module manufacturers and installers. And Petra Solar has booked some orders.

I'm adding a few more startups to the rapidly growing list of entrants in this rapidly innovating sector.

eWatz – According to LinkedIn, eWatz is developing a hardware/software solution using standards based open architecture for measuring, monitoring and maximizing photovoltaic solar panels and other renewable energies.

NavSemi – According to the company's website it builds a "Digital Solar Energy Maximizer for Home and Street Lighting products."

And Sympagis, another distributed electronics for PV firm has changed its name to eIQ Energy. It is funded by cleantech VC, NGEN.

We've heard of another called Annexus but have yet to find out further info.

Here's the updated list:

Microinverters

  • Accurate Solar
  • AzurayEnecsys
  • EnPhase Energy
  • GreenRay Solar
  • Larankelo
  • Petra Solar
  • SolarBridge (formerly SmartSpark)

DC-DC Inverter Architectures

  • Accurate Solar
  • MPPC
  • National Semiconductor
  • eIQ Energy (fka Sympagis)
  • SolarEdge
  • Tigo Energy

Other Inverter Startups

  • 1-Solar
  • Annexus
  • Apollo Solar
  • Act Solar (acquired)
  • Array Converter
  • EOS
  • eWatz
  • GenDrive
  • NavSemi
  • Princeton Power
  • Phobos
  • Sustainable Energy Technologies
  • TerraWatt Power

More details in the GTI Report: The Coming Disruption in the PV Inverter Market.

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