KACO new energy releases two new utility-scale string inverters

KACO new energy announced the release of two new utility-scale solar PV inverters with outputs of 155 and 165 kW featuring silicon carbide power transistors. This thermally optimized semiconductor material results in cost savings for the construction and operation of utility-scale solar power plants.

The blueplanet 155 TL3 and 165 TL3 offer 15% more power than their otherwise identical predecessor models: Customers benefit from fewer inverters for the same total output of a solar project. Fewer inverters in their compact design and a weight of less than 177 pounds simplify transport and installation.

The benefits of silicon carbide

“The new ‘High Power’ variants are real powerhouses. This is due to the high thermal stability of the silicon carbide power transistors. This gives the inverters an exceptional power density of two kilowatts per kilogram and efficiencies of up to 99.1%. They are optimized for installation in the cooler and more moderate climate zones. If you like to use our silicon carbide inverters in hotter regions, you should choose the original ‘High Temperature’ devices. These still deliver their full performance at ambient temperatures of up to 50℃,” said Boban Vujovic, product lifecycle manager at KACO new energy.

For use in other demanding installation locations, the inverter housing withstands dust, water jets and salt corrosion near the sea. While the inverters brave adverse conditions on site, commissioning and updates can be carried out remotely via secure Ethernet communication.

DC combiners complement inverter strengths

For flexibility in system design, KACO recommends the use of DC combiners. The company has just renewed its range of such string collectors in cooperation with the cabling and wiring specialists at HIS Renewables GmbH. In ground-mounted solar power plants, the inverters are installed at a central location, while the DC combiners are spread across the PV module array. This leads to short cable runs between the inverters and the transformer and means that there is no loss of power on the AC side: The high efficiency of the inverters can be deployed to its fullest. Those who follow the trend toward bifacial solar modules will find DC combiners particularly useful: They leave free choice to counter the higher currents with the appropriate fuses of 25 amperes and more.

News item from KACO new energy