Growatt WIT 4-15K-HU hybrid inverter

The Growatt WIT 4-15K-HU is a series of advanced, three-phase hybrid inverters designed for maximum efficiency, flexibility and reliability in residential and small commercial installations. The device combines the functions of a grid-tied inverter, battery charger and uninterruptible power supply (UPS), offering a comprehensive energy management solution. With high input and output currents and intelligent features, it’s ready to work with the latest PV modules and the most demanding loads.

Key features of the Growatt WIT 4-15K-HU:

• High efficiency and power: Maximum input current per string up to 20 A and a powerful battery charge/discharge current up to 290 A allow full utilization of modern panels and energy storage systems.
• Reliable emergency power (UPS): The inverter supports UPS functionality with a transfer time below 10 ms and a “black start” capability, allowing the system to start from the batteries without grid input.
• 100% output asymmetry and overload capability: The ability to handle 100% unbalanced load on the output and continuous AC-side overload capacity of 110% ensure stable power even with uneven load distribution between phases.
• Integrated generator input: The inverter is equipped with a dedicated input for an external generator, providing an additional power source and increasing overall system reliability.
• Intelligent load management: Built-in intelligent load management features allow optimization of energy use and prioritization of power to critical loads.

Who is this a good choice for?

This is an ideal solution for homeowners and small businesses looking for a comprehensive and efficient energy management system. With UPS functionality and the ability to connect a generator, the WIT inverter provides full energy security and independence from the public grid. Its capacity to handle high currents and unbalanced loads makes it well suited for modern buildings with multiple loads, such as heat pumps, electric vehicle chargers or HVAC systems, ensuring stable, uninterrupted power.