Chinese microinverter maker Hoymiles has launched this week what it claims to be the largest and most efficient three-phase microinverter on the solar market to date at the SNEC tradeshow in Shanghai, China.
“Our new MIT-5000-8T microinverter is around 20% cheaper than smaller microinverters,” a spokesperson from the company told pv magazine. “It is particularly suitable for big houses and commercial buildings.”
One of the most important features of the new product is its wide MPPT voltage range, which spans from 12 V to 136 V. “The low input voltage minimizes the risk of arc faults and electric shocks,” the spokesperson went on to say. “The series was conceived to accommodate eight solar modules, with an output power of up to 5,000 VA and an input current of up to 20 A.
The micro-inverter measures 395 mm × 308 mm x 60 mm and weighs 8.6 kg. Its peak efficiency is 97.70% and the European efficiency rating is 96.80%. The nominal MPPT efficiency is 99.8% and night power consumption is less than 50 mW. Its rated power output is 5 kW.
The new product has a maximum input voltage of 140 V and four MPPTs, with one input for each MPPT. It also features natural convection cooling and IP67-rated protection.
The MIT-5000-8T microinverter is part of a new series including two more products – the MIT-4000-8T and the MIT-4500-8T, which can also accommodate eight modules each. They have a power output of 4 kW and 4.5 kW, respectively, and their peak efficiency ranges from 97.50% to 97.60%. Their size and weight are the same as the MIT-5000-8T model.
“All products rely on a Sub-1G wireless solution ensuring stable communication with our gateway DTU,” the spokesperson explained. “This enables module-level monitoring and remote O&M.”
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Maybe I don’t understand something, but 136V x 20A = 2720 watts. And that’s at lab conditions with ideal voltage and current. Even then that’s just close to half of 5KW. Is there some mystery physics going on here where energy is doubled out of thin air?
There are 4 inputs so max DC power should be lower than 1250W DC per input to avoid clipping on AC power output.
Only one problem, max DC current is still stuck at 20A so new panels with 18/19A at STC will not be usable…
It is ok with 12/13A panels at STC.