Microgrid & Off-Grid Energy Storage
Microgrid & Off-Grid Energy Storage
Date |
2025.10 |
Address |
DaFeng, JiangSu |
Projectscale |
250kW/522kWh 180kWp |
Application |
To address the challenges faced by remote factories—such as the lack of a reliable power grid, high costs of diesel-powered generators, difficult operation and maintenance, and significant pollution—an off-grid system comprising a 180 kWp photovoltaic array... |
Background
No Grid Access for Projects: Users are agricultural facilities located in remote areas with weak local grid infrastructure;
High Electricity Costs: Traditional diesel power generation is expensive, leading to a heavy long-term operational burden;
Difficult O&M Management: High difficulty in operation and maintenance, reliance on manual labor with scarce spare parts supply, low efficiency in manual inspections, and lagging fault response;
Significant Environmental Impact: Severe pollution, with prominent noise and emission issues.

Countermeasures
·Configured with a 180kWp photovoltaic (PV) system and a 522kWh energy storage system. The grid-forming energy storage provides grid support. Through solar power supply and surplus energy storage, it realizes off-grid power supply protection, maximizes PV consumption, reduces electricity costs, eliminates reliance on single-source diesel generation, and thereby improves power supply reliability;
·The energy storage adopts a modular design for flexible expansion, customizing capacity according to load power requirements to precisely match application scenarios;
·Intelligent management and automatic dispatch enable fully automated collaborative operation of PV, energy storage, and loads.
Project Value
This project addresses pain points such as the lack of grid access, high diesel generation costs, difficult maintenance, and heavy pollution in remote factories. It features an off-grid system configuration of 180kWp PV + 250kW/522kWh grid-forming energy storage. Leveraging the local average of 3.3 hours of daily PV utilization, the system generates 216,800 kWh of green electricity annually, completely replacing diesel generation. This directly saves over 360,000 RMB in fuel costs per year, and nearly 450,000 RMB in comprehensive annual cost reductions when including labor, maintenance, and environmental expenses.
Modular energy storage allows for on-demand expansion, while the grid-forming system stabilizes power quality to protect textile production equipment. The intelligent platform enables fully automated dispatch and remote operation and maintenance, reducing the burden of manual inspections. The system produces zero exhaust or noise pollution, and the green electricity meets low-carbon requirements for foreign trade. The standardized and easily replicable solution provides an economical and reliable benchmark for off-grid power supply in industrial scenarios without grid access.
Related Products