Taiwan-based inverter manufacturer, Delta, launched a new compact M70A solar PV string inverter. The inverter has a power density of 750 kW per square metre at 400 V and can be used for projects with a generation capacity of more than 70 kW. It is a 77 kVA, three-phase device with six maximum power point trackers (MPPTs), and is ideal for ground-mounted solar parks and commercial rooftops. According to the company, all six MPPTs have three pairs of connectors each and these help installers by offering more flexibility in planning module strings, as they can now compensate for shading and complex roof geometries by allocating the MPPTs accordingly.
The inverter has an aluminium casing with IP65 protection. Additional advantages include an I-V curve feature for PV curve recording and Q at Night to supply reactive power to the grid outside standard feed-in periods. Its anti-PID (potential induced degradation) feature protects solar modules from the effects of voltage fluctuation, heat and humidity. The inverter enables individual string monitoring through iOS and Android apps on the MyDeltaSolar Cloud. The device is also available with an RS485 interface and wireless communication.