Hoymiles Solar Inverters

Hoymiles started with the smallest kind of inverter. Hoymiles Power Electronics Inc. was founded in Hangzhou, China, in 2012, launched its first microinverter in 2014 and introduced a four-panel single-phase microinverter in 2017. It has been listed on the Shanghai Stock Exchange’s STAR Market since 2021.

The company has more than 2,200 employees, four manufacturing bases (including a plant in Mexico that began production in 2024) and sales in over 190 countries and regions. In Wood Mackenzie’s 2026 global solar inverter manufacturer ranking, which scores service, R&D, supply chain and finances, Hoymiles entered the top ten for the first time.

Hoymiles inverter range

Microinverters remain the core. The HMS series covers single-phase systems with one, two or four panels per unit, from 300 W to 2.25 kW, which spans a balcony kit to a full roof. The HMT series and the MIT-8T serve three-phase homes, with the MIT taking eight panels for up to 5 kW. The number before T tells you how many panels one unit handles: an HMS-2000-4T takes four.

Hoymiles also builds string hybrid inverters for home batteries: the HYS-LV (3–6 kW, single-phase, low-voltage battery), the HYT-HV (5–12 kW, three-phase, high-voltage battery), and the third-generation HIS-L-G3 single-phase and HIT-L-G3 three-phase models of up to 20 kW.

What Hoymiles is known for

Multi-panel microinverters are the signature. One HMS-2000-4T handles four panels with a single AC connection, which cuts hardware and installation time compared with one unit per panel while still giving each panel its own maximum power point tracker (MPPT). That makes shading and mixed roof directions far less of a problem than with a single string.

The trade-off is fixed limits per input. Microinverter inputs are sized for a panel of a given current and wattage, and the largest modern panels can exceed them, so the choice of panel matters more than with a string inverter.

Matching panels to a Hoymiles microinverter

With a microinverter there is no string to size. Instead, check that one panel fits one input. On the HMS-2000-4T each input tracks from 16 to 60 V, accepts up to 65 V, takes 14 A of operating current and 20 A of short-circuit current, and the unit is rated for about 670 W of panel per input. A typical 450 W panel with about 34 V and 13 A at maximum power fits comfortably.

Panels with 210 mm cells often run at 17–18 A, above the 14 A input limit, so the microinverter clips part of their output; a panel whose short-circuit current exceeds 20 A should not be connected. The three-phase MIT-8T is different: each input takes two panels in series, up to 140 V and 20 A. The string calculator checks your panel against these input limits for any Hoymiles model.