The turnkey station SG6250HV-MV for 1,500 volts DC systems integrates two units of the outdoor central inverter SG3125HV-30 with medium-voltage a transformer and other components in a 40-ft container, minimizing the cost on transportation and installation. Given the three-level topology technology, the maximum inverter efficiency reaches 99 per cent. As a brand-new outdoor central inverter, it is strategically designed with a DC/AC ratio of up to 1.8, enabling cost-saving on Balance of System (BoS) at USD$ 2 million for a 100-megawatt project.
Featuring an optimal protection level of IP65 and anti-corrosion capacity of C5, the brand-new outdoor solution is resilient in harsh conditions. Equipped with smart forced air-cooling technology, the solution can operate without derating even when the temperature is up to 50 degrees Celsius, making solar projects more productive and cost-effective. The solution is compatible with the DC-coupling energy storage system, enabling 60 per cent of the rated power charge from grid. Complying with the most demanding international grid codes, the solution contributes the quality and stability of the electric system.
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Leaders of our industry: Florian Chan of Sungrow
Focusing on ground-mounted utility-scale projects, the new 1,500 volts DC string inverter SG125HX features 6 MPP trackers and is compatible with the high outputs of bifacial modules surpassing 500 watts, thus delivering high productivity. Flexible for blocks among 1.6 megawatts to three megawatts, the solution also has a protection capacity rated at IP66 and C5. Characterized by a compact design and a light weight of only 70 kg, the 125-kilowatt solution allows faster installation and commissioning.
Commercial & residential innovations
Commercial and residential PV drives global solar demand. The commercial product portfolio including SG50CX, SG110CX for 1000Vdc system, feature multiple MPPTs which allows an optimal efficiency even in the shade and high protection level IP66 and C5, durable to harsh conditions. In addition, it offers high yields with a DC/AC ratio up to 1.5.
The robust three-phase hybrid residential inverters ranging from 5kW to 10kW perfectly suit the requirement of households. With built-in uninterrupted back-up power supply, the inverter can automatically detect outage and seamlessly transfer to back-up power. It supports 100% unbalanced loads in off-grid mode, which means home appliance can flexibly be connected to any phase. Featuring a compact design, plug-and-play connectors and innovative friendly end-user interface, the inverter enables easy installations.
Wide range of storage solutions
Sungrow offers a wide range of storage solutions to satisfy diversified needs. Sungrow ESS has been installed in over 900 major projects across the globe. The new "50kW-3 Hour" system ST159kWh-50HV tailored to C&I projects is fully integrated and highly efficient and safe. Equipped with reliable four-level battery management, fast breaking and anti-arc protection, top-mounted HVAC (Heating Ventilation Air Conditioning) and FSS (Fire Suppression System), the solution can ensure cost-savings and longevity.
Another "3MW-1 Hour" system ST3368kWh-3150UD-MV designed for utility-scale applications is also being showcased. With the all-in-one integrated design, the solution is easy for installation and O&M.
Power Conversion System
Furthermore, Sungrow has advanced the PCS (Power Conversion System) available for capacity expansion from 1 megawatt to 6.9 megawatt as well as DC-DC converters. The PCS features a high overall protection level of IP65 and anti-corrosion level of C5. It allows a wide DC voltage operation range and full power operation at 1,500 volts. In terms of the DC-DC converters SD125HV and SD1250HV, they are of bi-directional buck-boost design with maximum efficiency of 99 per cent, accessible for a wide DC operating voltage range.
Given the continued good standing in the market and over 40 per cent of personnel assigned to R&D, Sungrow keeps bringing forth technologies to meet growing demands across the globe. "We would like to drive the adoption of more solar and energy storage to meet a growing appetite for clean, renewable energy. Looking forward to connecting with more stakeholders for sustainable development of the society despite the changing situation," said Jack Gu, Senior Vice President of Sungrow. (mfo)
