String Inverters

A Photovoltaic String Inverter converts the variable direct current (DC) output of a photovoltaic solar panel into a utility frequency alternating current (AC) that can be configured as ON-Grid or used by a local OFF-Grid electrical network. alfanar Kopp Inverters stand for innovation, quality and reliability.

Our portfolio of string inverters offer maximum simplicity and flexibility in all project phases. Whether you operate a centralized or decentralized system, we have a solution for you. We offer support from the design stage through to planning, commissioning and operation.
In addition, our inverters feature the simple advantages of having string level monitoring during operation and being maintenance free.



1.alfanar String Inverters: Type - Kopp 100K

With maximum power density, Kopp’s next generation inverter family combines compatibility, installation flexibility, serviceability and connectivity in a revolutionary new design. This inverter can be connected to any grid voltage between 200 and 460 VAC, offering maximum power up to 100 kVA.

Technical Specifications:

  • Nominal AC voltage: 200 - 460 VAC
  • Offering maximum power up to 100 kVA
  • Spacious Connection Box as a separate unit
  • Indoor or outdoor installation up to IP65
  • Centralized and decentralized Combiner Boxes
  • Withstand ambient temperatures up to 60°C
  • Horizontal or vertical mounting capability
  • High power density PowerUnit up to 1600 w/kg, 98.5% efficiency
  • Supports SunSpec Standards
  • 2 Ethernet Powers for daisy-chaining
  • Can be commissioned via the Kopp App which seamlessly connects via Bluetooth to the inverter. Each inverter can be individually connected to our Kopp log portal for remote monitoring, configuration and updates.

2.alfanar String Inverters: Type - Kopp 40K / 46K

Performance and reliability are critical on large PV systems, our second-generation Kopp String Inverter 40K/46K provides both. With up to 46 kVA output power for medium voltage feed-in and its patented 5 level UltraEta ® Topology, it generates the highest possible energy yield at every irradiation level. The inverter design features passive cooling without an external fan that eliminates costly maintenance works.

Technical Specifications:

  • Nominal AC voltage: 400 – 460 V
  • Offering maximum power up to 46 kVA
  • External DC Connection Box with 10 String Inputs
  • Largest passive cooled Inverter
  • Patented UltraEta® 5 Level Topology
  • DC/AC overloading 150%
  • Indoor or outdoor installation up to IP65
  • Withstand ambient temperatures up to 60°C
  • Cloud-based monitoring. Can be connected to our monitoring portal (Kopp log) using Ethernet or RS485 connections, offering professional monitoring functionality.

3.alfanar String Inverters: Type - Kopp 08K - 23K

The new generation Kopp 08K - 23K String Inverter is designed with future-proof technology, is user-friendly, and reliable. Whether you need to add additional energy storage in the future, integrate the PV system to a smart grid, or regulations change, this new software means you’ll be well equipped and prepared to handle whatever the future brings.

Technical Specifications:

  • Nominal AC voltage: 400 – 460 V
  • Lightest 20 kW Inverter, offering maximum power up to 23 kVA
  • Compact outdoor String Inverter
  • Passive cooling
  • Patented UltraEta® 5 Level Topology
  • Maintenance free
  • High energy yields
  • Easy installation and replacement
  • Indoor or outdoor installation up to IP65
  • Withstand ambient temperatures up to 60°C
  • Flexibly decentralized

4.alfanar String Inverters: Type - Kopp Hybrid 88K

alfanar Kopp Hybrid 88K is the next generation of bidirectional high-power battery inverters, based on the new inverter platform from Kopp. This Hybrid Inverter is specifically designed to be used with all high voltage batteries. With a rated power of 88 kW at 400V, it is perfectly suited for commercial behind-the-meter applications such as self-consumption optimization or peak-shaving.

Technical Specifications:

  • Nominal AC voltage: 400 V
  • Offering maximum power up to 88 kVA
  • Horizontal or vertical mounting capability, ideal for container integration
  • High power density PowerUnit, 98.5% efficiency
  • 2 Ethernet Powers for daisy-chaining
  • Supports Sunspec Standards
  • Maximum performance. With fast response times, the Inverter achieves high control performance, making it suitable for time-critical applications.
  • Indoor or outdoor installation up to IP65
  • Withstand ambient temperatures up to 60°C
  • Can be commissioned via the Kopp App which seamlessly connects via Bluetooth to the Inverter. The integrated, failsafe Ethernet daisy-chain (alternatively RS485) allows for cost efficient high-speed monitoring without special accessories.