Huawei’s smart power solutions for commercial, industrial and residential areas
THE Solar & Storage Live Africa 2024 exhibition saw Huawei launch its new smart ‘PV+ESS’ systems – incorporating its range of solar photovoltaic (PV) products and energy storage solutions (ESSs) – to the African market.
The Huawei PV+ESS system is designed with safety and reliability at its core, ensuring more energy and simpler operation and maintenance, says Nick Lusson, vice-president of Huawei Digital Power Eastern Africa Region.
Its systematic design ensures that better product adaptation can be achieved, while enabling more monitoring and management functions to be completed.
Lusson notes that Huawei’s energy storage equipment has completed reliability testing, conducted over eight months, for high-quality battery cell selection.
“Huawei’s C&I [commercial and industrial] smart PV solution is an integrated solution for PV, ESS, charging, [with] optimiser, and cloud management, providing a one-stop solution for all scenarios and load ranges,” says Lusson.
“Among the safety features included in these products are cell-level monitoring and AI analysis data to identify battery risks, active rack isolation, and special structural safety design.”
Lusson notes that by independently controlling the battery unit, it is possible to increase the ESS’s overall capacity by more than 5 percent, ensuring higher investment returns.
The use of a cloud management system enables the ESS to deliver automatic state-ofcharge (SOC) calibration, cell-level monitoring, and remote fault location through the cloud control interface, providing simple and friendly operation and maintenance.
Huawei’s SUN5000/2000-150K-MG0 – a 150kW string inverter where power is generated by a string of solar panels – has six major features: more power generation, active safety, long-term reliability, minimalist operation and maintenance, efficient website construction, and industry friendliness.
The rated output power has been increased to 150kW, with a maximum power of 165kW, providing a high-quality solution for commercial and industrial projects. It is perfectly compatible with various high-efficiency components.
This inverter boasts a maximum efficiency of 98.8 percent.
It has a built-in PID (potential induced degradation) repair solution that has been proven to increase power generation by three percent by TÜV (the German Technical Inspection Association), and component-level optimisation.
After installing the optimiser, the roof resource utilisation rate can be increased by up to 50 percent, and power generation by up to 30 percent.
The 150kW inverter comes with industry-first safety features. These include intelligent string disconnection protection (SSLD), which can disconnect DC power inflows in milliseconds when the inverter fails (such as PV string reverse connection, DC input backfeed and internal short circuit of the inverter).
Intelligent DC ground protection cuts off ground faults in 15 milliseconds during the grid connection process, reducing the chances of inverter failure by more than 75 percent.
The solution’s unique intelligent terminal temperature detection scheme detects AC and DC terminal temperatures and shuts down in 0.5 seconds in the event of over-heating, drastically reducing the chances of inverter failure due to damage and burning of the DC terminals.
Huawei products always strive to ensure reliability from concept planning, development, verification to release.
Residential solutions
Huawei’s all-scenario residential smart PV & ESS line-up includes the mainstream Power-M solution and the premium Luna 2.0 solution.
The Power-M solution features an all-inone modular design, supports flexible capacity expansion, and allows for simplified installation, according to Lusson.
“The typical configuration is a 5kW inverter and a 10kW battery, and up to three units can be connected in parallel to cater for higher energy demands.”
The Luna 2.0 is a premium solution, with increased performance in terms of appearance, safety and intelligence. The S1 model is a new residential energy storage product with a single battery module of 6.9kWh, with larger capacity, longer life, and increased safety. It’s also designed to be as aesthetically appealing as it is practical.
Huawei designed it so that it feels less like something that supplies industrial power and more like an energy-producing work of art.
So successful has it been on this front that Luna 2.0 won a world-famous iF design award.
“The system is also incredibly secure, particularly from a fire safety perspective,” says Lusson. “As solar PV becomes increasingly popular around the world, it’s becoming clear that poorly designed and installed solar PV products come with the risk of fire. Luna 2.0 is built with numerous safety features aimed at significantly reducing the risk of both aboveroof and below-roof fires.”
From an above-roof perspective, Huawei inverters support arc-fault circuit interrupters (AFCIs) and rapid shutdown (RSD).
For below-roof safety, Huawei energy storage systems support a five-level safety protection ideal, including cell-level protection, electrical protection, structure protection, active protection and emergency protection. The Luna S1 energy storage supports the industry’s first 40cm immersion protection and the world’s leading active pressure relief technology.
The Luna 2.0 system is additionally built with significant intelligence capabilities.
This means, for instance, that if a power provider has scheduled blackouts, you can link the system with the scheduled outages to ensure the battery has sufficient power for when the provider-supplied power goes out.
In addition, Huawei’s SmartDesign tool supports professional PV design for residential and C&I scenarios with a free site survey, ensuring optimised installations. − Moneyweb.