Hoymiles HMS-900-2T Microinverter - 900 Watts
Best current price£230.72from B&Q
Best offers
Shopping.co.uk recommended and popular offers
B&Q£230.72Visit shop - Hoymiles Hms-900-2T Microinverter (900 Watts)
Visit shopB&Q£230.72Visit shop One Offer
1 offer from £230.72
View price history by clicking the chart icon.
Product Information
Full details
The Hoymiles HMS-900-2T microinverter is an ideal solution for residential solar installers and homeowners looking to maximize energy harvest from dual-panel configurations. By providing 900 watts of output power and dual independent MPPT inputs, it ensures that each connected PV module operates at peak efficiency, even if one panel is partially shaded. While it offers superior granular monitoring and performance, users should note that it requires a dedicated DTU (Data Transfer Unit) to enable the Sub-1G wireless monitoring capabilities.
All features
| Model Part Number | 221994 |
|---|---|
| Brand | Hoymiles |
Extended Product Information
FAQs
Can I connect only one panel to the HMS-900-2T?
While designed for two modules, you can technically operate one, but it is more cost-effective to use a single-input microinverter for that scenario.
Is the HMS-900-2T compatible with all solar panels?
It is compatible with most standard residential PV modules; check the inverter's voltage and current specifications against your panel's datasheet to ensure compatibility.
How far can the DTU be from the microinverters?
The Sub-1G technology offers excellent range, often penetrating through multiple walls, but the exact distance depends on local obstacles and structural materials.
Do I need a special tool to install the cables?
The microinverter uses standard MC4 connectors for DC input; a standard MC4 disconnect tool is recommended for safe installation and maintenance.
What is the warranty period?
Hoymiles typically offers a robust warranty on their microinverters; please check your specific purchase documentation or the Hoymiles official website for the exact term length.
Troubleshooting
No data appearing in the monitoring portal
Check if the DTU is powered on and within range of the microinverter. Ensure the serial numbers were correctly added to the management software.
Microinverter not producing power
Verify that the AC branch circuit breaker is on and check that the DC cables from the PV modules are securely connected to the MPPT inputs.
Pros and Cons
Pros
- Maximizes energy yield through independent dual MPPTs
- Easy to scale for small to medium-sized residential arrays
- Reliable communication range with Sub-1G technology
- Detailed module-level data for easy troubleshooting
Cons
- Requires separate purchase of a DTU for monitoring
- Installation requires professional electrical knowledge
- Higher initial cost per panel compared to string inverters
Setup, Compatibility & Care
Installation should be performed by a certified professional in accordance with local electrical codes. The microinverter is designed to be mounted directly under the PV modules on the racking system. Ensure that the mounting surface is clean and provides adequate airflow for passive cooling. During setup, you must pair the device with a compatible Hoymiles Data Transfer Unit (DTU) to begin data transmission. Regarding care, the system is designed to be maintenance-free due to its rugged, weather-resistant enclosure. However, it is good practice to visually inspect the connections and the status lights on the unit during annual maintenance checks to ensure no physical damage has occurred from debris or pests.