Major PV inverter manufacturer, Sungrow Power Supply is to debut three new, UL listed inverters for the North American market at Solar Power International being held in Las Vagas from October 21.
Sungrow will be showcasing two high efficiency string inverters for utility and commercial applications as well as its latest 1MW central inverter.
The company first revealed a 60kW string inverter (SG60KTL) with 99%-plus inversion efficiency at SNEC 2014.
In North America, Sungrow is offering its SG60KU utility string inverter with a 99% peak efficiency milestone. Such inverters have become popular with developers and EPC’s as they offer lower costs than central inverters on projects up to 10MW in size.
According to Sungrow, the 1,000Vdc, 400/380Vac transformerless inverter’s lower output voltage allows for direct medium voltage transformer connection, and the built-in MC4 connector design enables 2 in 1 junction, speeding installation and reducing cost, as well as giving the advantage of a string inverter at central inverter pricing.
String level monitoring and MODBUS allow for full visibility on performance, and the product is utility ready with local and remote HVRT/LVRT/FRT, power, and PF controls.
Also being showcased is the SG56KU, which is similar to the SG60KU, but optimized for commercial applications, with dual stages, 4 MPPT’s with a wider voltage window, 480Vac output, and 16 fused DC inputs with string level monitoring.
It shares the same communication and control capabilities, as well as compact footprint with sealed electronics enclosure, and can be wall, pole, rack, or ground mounted. It can be mounted at an angle as well as horizontally.
In the large utility-scale market, Sungrow is offering its SG1000MX 1MW central inverter, whihc is a 2.0 version of Sungrow’s globally deployed 500, 750, and 800kW units.
The unit can be mounted on turnkey, prefabricated and prewired 2MW skids with medium voltage transformers and auxiliary equipment to reduce on-site labour costs.
Importantly, changes in air flow and cooling techniques allow for high power density and can produce 1100kVA at temperatures up to 50˚C, the 1,000Vdc transformerless unit comes with 8-12 fused DC inputs (or an optional breaker recombiner cabinet), DC switch and AC circuit breaker.