Off-grid Solar + Storage Power Solution
Standalone Renewable Power Supply for Remote Mines & Quarries
Solution Overview
The Off-grid Solar + Storage Power Solution is a fully standalone microgrid system built for sites without access to stable utility grid power. It combines solar photovoltaic arrays, containerized BESS energy storage, hybrid inverters and intelligent control system to deliver reliable 24/7 power independent of public grid.
The system reduces or eliminates expensive diesel generator running hours, cuts fuel transportation cost and carbon emissions for remote operation sites. We provide full turnkey service from site survey, engineering design, equipment supply, installation, commissioning to operator training.
Applicable Scenarios: Remote open pit mines, quarries, sand & gravel washing plants, mineral processing sites, off-grid construction camps.
Core Functions: Off-grid Power Generation | PV & BESS Microgrid | Peak Load Support | Diesel Gen-set Hybrid Backup | Power Quality Stabilization | Remote Monitoring & Control
Off-grid Energy Working Principle
This off-grid microgrid uses solar PV as the primary energy source, with container BESS as the energy buffer to balance day-night power fluctuation. During daytime, solar panels generate electricity to power site loads while charging the battery energy storage system. At night or low solar irradiance periods, BESS discharges continuously to maintain stable power supply.
- Solar PV Array – Capture solar radiation and convert it into DC electricity as the main power source.
- Container BESS Energy Storage – Store surplus solar energy, provide power when solar output drops, stabilize voltage and frequency.
- Hybrid Inverter System – Convert DC power from PV and batteries into AC power for mining machinery and plant equipment.
- Backup Diesel Generator – Optional backup unit for extended cloudy seasons or heavy peak load emergencies.
- Intelligent Microgrid Controller – Automatically manage PV output, battery charge/discharge and genset startup/shutdown.
The system operates autonomously without grid connection, forming a self-sufficient power microgrid for remote mining and aggregate processing projects.
Three-Stage Implementation Process
- Site Survey & Energy Demand Analysis: Evaluate local solar irradiance, land space, daily load curve and peak power demand; calculate PV capacity and BESS storage sizing; conduct CAPEX and OPEX financial analysis.
- System Fabrication & On-site Deployment: Manufacture PV modules, container BESS, hybrid inverters and control cabinets; transport to remote site; complete foundation work, cable laying and equipment installation.
- Commissioning & Long-term Operation: Microgrid testing, battery calibration and safety protection setup; operator training; remote real-time monitoring and periodic maintenance support.
Core System Components
Power Generation & Storage Units
- Solar PV Module Array
- Containerized BESS Energy Storage Station
- Hybrid PV Inverter / Bi-directional Inverter
- Optional Backup Diesel Generator
- DC combiner boxes & surge protection
Power Distribution Infrastructure
- Medium & low voltage distribution cabinets
- Power transformer units
- Cable & earthing protection system
- Load switching & protection devices
- Lightning protection system for remote sites
Microgrid Control & Monitoring
- Microgrid Central Controller
- PLC & HMI local operation panel
- Cloud remote monitoring platform
- Battery management system BMS
- Alarm & safety interlock protection
Turnkey Engineering Services
- Solar resource & load assessment
- Microgrid system engineering design
- Equipment supply & packaging for export
- Onsite installation guidance & commissioning
- After-sales maintenance & spare parts support
Technical Specifications
| Item | Specification |
|---|---|
| System Type | Off-grid standalone PV + BESS microgrid |
| PV Installed Capacity | 100kW ~ 20MW, customized |
| BESS Storage Capacity | 500kWh ~ 100MWh containerized battery system |
| Output Voltage | 400V / 6.6kV / 11kV customized AC output |
| Operation Mode | Full off-grid, PV priority, genset backup mode |
| Operating Temperature | -20°C ~ +55°C, adapted for mining harsh environment |
| Monitoring | Local HMI + Cloud remote real-time monitoring |
| Project Mode | Full turnkey EPC, CKD modular delivery available |
Solution Advantages
- No Utility Grid Dependence Fully independent off-grid microgrid for remote sites without public power access.
- Diesel Fuel Cost Reduction Replace most generator runtime with free solar energy, dramatically cut fuel transportation and consumption cost.
- Modular & Expandable Containerized BESS and modular PV layout, easy capacity expansion as mine production grows.
- Harsh Environment Adaptation Designed for dusty, high-temperature remote mining and quarry sites with full protection.
- Low Maintenance Workload Intelligent automatic control, remote monitoring to reduce on-site operation labour.
- ESG Carbon Reduction Benefit Lower carbon footprint, meets global sustainability and ESG reporting requirements.
FAQ
A: It is a self-operated microgrid combining solar PV and battery energy storage. It does not connect to public utility grid and can supply continuous AC power independently for remote industrial sites.
A: Yes. Solar charges BESS in daytime, and batteries supply power at night. We can add backup diesel generators for long cloudy weather as redundancy.
A: Absolutely. We design the microgrid to match large motor starting peak loads of crushing, screening and sand washing equipment.
A: Yes. PV arrays and container BESS are modular, allowing incremental capacity expansion when mine production increases.
A: Our scope includes solar resource assessment, system design, equipment supply, installation guidance, commissioning, operator training and after-sales spare parts service.
Request A Quotation
Please provide your site location, daily power consumption, peak load and working hours. Our power engineers will design customized off-grid solar + storage microgrid and offer detailed budget proposal.
Decarbonization & Off-Grid Power for Mines
If your site requires stable renewable power, green hydrogen or green ammonia fuel supply for long-term low-carbon operation, check our dedicated energy integration platform.
