The integration of new energy sources into the power grid in Europe and America has led to frequency and voltage instability. Traditional EMS systems respond slowly and lack flexible dispatching, struggling to meet millisecond-level regulation requirements. AI-powered smart EMS features advantages such as short-term power forecasting, millisecond-level frequency and voltage regulation, and cloud-edge collaborative multi-objective optimization, ensuring compliance with local grid integration standards. After implementation in multiple projects, grid faults have significantly decreased, achieving a 100% grid integration success rate, making it the core upgrade solution for overseas photovoltaic storage projects.

This article points out that traditional power frequency transformers are bulky and inefficient, making them difficult to adapt to off grid photovoltaic energy storage scenarios such as islands and mining areas. Silicon carbide solid state transformer (SiC SST) has a smaller volume, an efficiency of over 98%, and comes with black start capability. It is compatible with weak power grids and can reduce diesel consumption, which is in line with overseas low-carbon policies. At present, there is strong demand in the European, American, and Australian markets, making it the core innovative equipment for off grid microgrids.

This article compares DEMUDA’s liquid-cooled and air-cooled energy storage cabinets in power consumption, cell degradation and maintenance costs. Air-cooled racks consume more power, suffer severe cell aging and incur high upkeep fees. Liquid cooling with sealed glycol circulation cuts OPEX and extends battery life. It provides scenario-based selection guides for C&I, small factories and overseas residential storage. Though liquid cooling has higher upfront cost, it delivers full ROI within 8–10 years with OEM & global distributor support.

This article focuses on small-scale PV scenarios including household and agricultural greenhouse solar systems. Conventional communication solutions come with high costs and redundant functions. Bluetooth features low cost and power consumption for on-site single-unit debugging, while LoRa boasts long transmission distance and strong anti-interference for remote cluster monitoring. Complementing each other, they resolve operation and maintenance troubles of mini PV projects. Lightweight wireless communication has become a core competitive advantage for small PV products.

Residential PV, courtyard storage, and agricultural PV are driving the expansion of lightweight distributed scenarios — where traditional communication solutions often suffer from functional mismatch and high costs. Bluetooth and LoRa, with their lightweight design, low cost, and ease of operation, are becoming the communication standard for small PV devices. This article examines Bluetooth‘s convenience for short-range local operation and LoRa’s networking advantages for long-range distributed clusters, exploring how the two technologies form a complementary and collaborative lightweight communication system — offering a practical reference for communication selection in small PV scenarios.