Growatt WIT 15K HU GTI
Engineered for modern residential energy storage applications, this Growatt inverter combines robust performance with reliable solar power management capabilities. Designed to handle maximum DC input voltages up to 1000V while maintaining optimal efficiency through its advanced MPPT technology that supports up to 20A per tracking point.
Built to withstand demanding outdoor conditions, the unit features IP66 protection rating ensuring complete dust protection and resistance to powerful water jets. This makes it ideal for residential installations where weather exposure is a concern. The inverter's sophisticated energy storage functionality allows homeowners to maximize their solar investment by storing excess power for use during peak demand periods or grid outages, representing Growatt's commitment to delivering professional-grade renewable energy solutions for the residential market.
Technical Specifications
| Maximum DC Input Voltage | 1000 V |
| Maximum DC Input Current per MPPT | 20 A |
| Enclosure Protection Rating | IP66 |
| Inverter Type | 户用储能逆变器 |
Frequently asked questions
What does the "HU-GTI" designation mean on the Growatt WIT 15K HU-GTI?
Growatt's naming combines HU, its marker for the residential hybrid core that manages a connected battery, with GTI, its grid-tied interface designation, on this single WIT 15K HU-GTI listing. Growatt's own data classes the unit as a residential storage inverter, so it sits in the same 15 kW-class WIT family as the separately listed pure HU and pure GTI models.
Can long strings of modules be wired to the Growatt WIT 15K HU-GTI?
Yes. The Growatt WIT 15K HU-GTI accepts up to 1000 V of maximum DC input voltage, well above what a typical 600 V residential string inverter allows. That headroom lets an installer wire longer series strings of modules, reducing the number of parallel strings and DC combiner connections needed to reach the target array size.
Does the Growatt WIT 15K HU-GTI need indoor protection?
No. The Growatt WIT 15K HU-GTI is rated IP66, so its enclosure is fully sealed against dust and withstands powerful water jets from any direction, a rating shared across Growatt's WIT storage family. That level of protection is generally enough for mounting on an exterior wall without a separate weatherproof cabinet, subject to local climate guidance.
How much DC current can one MPPT channel on the Growatt WIT 15K HU-GTI carry?
Growatt rates each MPPT channel on the WIT 15K HU-GTI for up to 20 A of DC input current, the same per-channel limit used across the WIT storage line. Installers combining parallel strings on a single input should keep the combined short-circuit current of those strings under that 20 A figure.
Source: www.growatt.com