Solar-DC Inverterless Controller

Gallery Solar-DC Inverterless Controller 1
Gallery Solar-DC Inverterless Controller 1
March 2021
Headquarters 3507 Biglen, Switzerland
In collaboration with Cygni Energy

Solar-DC Inverterless Controller - World’s First DUAL input and DUAL Output Solar Backup System with AC & DC output and Compatible Energy Efficient Appliances.

The Solar-DC Inverterless Controller has been developed based on the global trends of increasing relevance of distributed energy generation through rooftop solar and savings through energy efficiency. Solar-DC Inverter-less Controller for Off-Grid Homes or near Off-Grid-Homes (where grid is available but power availability is intermittent) is a Low Voltage DC technology based on 48V DC. The key product which will be used is the Cygni Integrated Built-in Lithium-Ion Battery Inverter-less System. This is one of the most efficient photovoltaic power backup system available in the market offering up to 40% lesser power consumption and 50% reduction in electricity bills. About 30-40% of the energy conversion loses can be reduced.

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Key features

  • First DUAL input (solar and grid) and DUAL output (AC and DC output) Solar Backup System.
  • Uses 'Always ON' technology with a novel Brown-out Concept to provide uninterrupted power.
  • Reduction in GHG per day (10 hours of usage) by Inverterless unit, capacity of a single Inverterless unit is 7.2 kW, energy consumed from a Inverterless unit for 10 hrs 72kWh. PV system of 5 kWp generate 22.25kWh of energy per day. 18913 gGCO₂eq Reduction
  • Reduction in GHG due to energy efficient equipment:The AC energy for 72kWh of energy from Inverterless unit144KWh,Energy saved by Inverterless power solution (50% energy savings) 72KWh,Reduction of GHG gases from the saved energy 65520gCO₂eq.


  • Most efficient photovoltaic power backup system available in the market offering up to 40% lesser power consumption and 50% reduction in electricity bills.
  • The typical payback for a Inverterless System with built-in Li-Ion batter is less than 3 years, as against 5 years for the traditional AC based solar power back-up systems.
  • 30-40% of the energy loses can be avoided.

Categories of Application

Maturity Stage

  • Medium and large scale commercialization
  • Small scale commercialization
  • Initial market commercialization
  • Prototype testing in the real world
  • Prototype testing 1:1 in the lab

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