Mining operations often take place far from established power infrastructure. Exploration areas, temporary mining camps, processing facilities and maintenance stations may operate in locations where grid access is limited or unavailable.
In these environments, electricity is essential for daily operations. Pumps, lighting, communication systems, workshop equipment, monitoring devices and worker accommodation all require a dependable power supply.
Diesel generators have traditionally played an important role in remote power generation. However, transporting fuel to isolated sites, maintaining generator equipment and managing changing electrical loads can increase operating costs.
A hybrid energy storage system for remote mining sites offers another approach. By coordinating solar photovoltaic generation, battery storage and diesel generators, mining operators can build a flexible power network suited to the site's actual energy requirements.
INJET's Mining & Oil Fields solution is designed around this type of multi-source power architecture. This article explains how the system works, what mining operators should consider before deployment and how to evaluate a suitable configuration.
A remote mining site does not always have the same electricity requirements throughout its operating life.
During exploration and early construction, power may be needed for temporary offices, accommodation, lighting and basic equipment. As the project develops, electrical demand may increase with the installation of workshops, pumps, processing equipment and other infrastructure.
Several challenges make power planning particularly important.
Mining and exploration areas may be located far from existing utility networks.
Extending grid infrastructure to a remote site can involve long construction periods, additional investment and complex site coordination.
In some locations, an independent power supply is a more practical starting point.
When diesel generators are the main source of electricity, fuel must be transported to the site and stored safely.
Difficult road conditions, long distances and changing fuel prices can all affect operating expenses.
A hybrid power system can use available solar generation and battery storage to reduce reliance on continuous diesel generation.
Mining sites often have different operating schedules.
For example, lighting and communication equipment may operate continuously, while pumps, workshops and other equipment may create additional demand during specific periods.
A generator sized for the highest possible demand may operate inefficiently when actual loads are much lower.
Remote locations can make equipment servicing more difficult.
Frequent generator operation may increase maintenance requirements, while spare parts and technical personnel may not always be readily available.
An integrated power solution with remote monitoring can help operators observe system conditions and coordinate different power sources.
A typical mining energy storage system combines several power sources and control components.
The configuration may include:
Solar photovoltaic panels
Battery energy storage system
Power conversion system (PCS)
Energy management system (EMS)
Diesel generator
Electrical distribution equipment
Mining site loads
Each component performs a different function.
Where solar resources are available, photovoltaic panels can supply electricity to the site's electrical loads.
The amount of energy generated depends on installed PV capacity, sunlight conditions, weather, panel orientation and system performance.
For remote mining sites with suitable installation space, solar PV can become an important part of the local power supply.
The battery stores available electricity for later use.
During periods of sufficient solar generation, surplus energy can be directed toward battery charging, subject to the system's operating limits.
When solar output decreases or site demand increases, stored energy can be discharged to support the electrical loads.
A diesel generator can provide additional electricity when solar generation and available battery energy are insufficient.
Rather than treating the generator as the only power source, a hybrid system coordinates its operation with the battery and solar generation.
The generator's operating schedule depends on load demand, battery state of charge and the configured control strategy.
The energy management system coordinates available energy sources.
It can monitor important operating information, including:
Solar generation
Battery state of charge
Generator operating status
Site electricity demand
Power output
System alarms
The purpose is to manage the relationship between energy supply and demand rather than allowing each power source to operate independently.
For many remote industrial projects, a solar-storage-diesel configuration is worth evaluating.
The three sources can work together according to different operating conditions.
Solar PV supplies available electricity to the site.
If solar generation exceeds immediate demand, surplus energy can charge the battery.
The battery can also help balance changes in electrical demand.
When solar generation decreases, the battery can supply stored electricity to designated loads.
If battery energy becomes insufficient for the required demand, the diesel generator can provide additional power.
Mining equipment may create sudden increases in electricity consumption.
The battery can support short-duration power demand when the PCS and system configuration are designed for the required load.
The generator can continue supplying power according to its operating limits.
Cloud cover and weather conditions can cause PV output to fluctuate.
Battery storage can help balance these variations and support more coordinated operation between solar generation and the generator.
The actual operating sequence depends on the EMS settings, generator characteristics and electrical system design.
The power requirements of a mining project depend on its scale, development stage and equipment configuration.
Before selecting a hybrid energy storage system, operators should identify the main electrical loads.
Worker accommodation may require electricity for:
Lighting
Air conditioning or ventilation
Refrigeration
Water supply
Kitchen equipment
Communication systems
These loads may operate on different schedules and should be included in the daily energy assessment.
Water pumps may be used for water supply, drainage and other site operations.
Motor starting characteristics and operating schedules should be reviewed because pumps can create significant short-duration power demand.
Maintenance facilities may use welding equipment, compressors, lighting and other electrical tools.
These loads can vary considerably depending on the work schedule.
Communication networks, security systems and monitoring equipment may require continuous electricity.
For remote mining sites, these loads can be important even when major production equipment is not operating.
Some mining operations include electrical processing machinery with higher power requirements.
These loads require a more detailed engineering assessment, including motor starting, power quality and simultaneous operating demand.
Not every mining facility has the same electrical profile. The system should be designed around measured or estimated site loads rather than assuming one standard configuration works for all projects.
Diesel generators remain important for remote power supply, particularly where the site requires energy during periods of low solar generation.
However, continuous generator operation is not always the most efficient arrangement.
A hybrid system can change how the generator is used.
When site demand is low, a generator may operate below its preferred loading range.
The battery can help absorb or supply short-term load changes, allowing the generator to operate according to a more coordinated strategy.
The exact control method depends on the generator and system design.
When sufficient solar energy is available, the system can prioritize PV generation to supply site loads and charge the battery.
This reduces the amount of electricity that needs to come from diesel generation during suitable operating periods.
An appropriately configured EMS can coordinate battery charging and generator operation according to defined thresholds.
This can help avoid unnecessary generator operation, although the actual result depends on the load profile and control settings.
If the hybrid system reduces diesel consumption, the project may also reduce the frequency of fuel transportation.
For isolated mining locations, this can be an important operational consideration.
Fuel savings should be calculated from actual generator consumption, operating hours, solar generation and battery dispatch data rather than using a universal percentage.
INJET's Mining & Oil Fields solution page includes a project reference titled Reliable Power Guarantee for Temporary Project Site and Maintenance Station.
The project involved a temporary project headquarters and a long-term maintenance station without access to the utility grid.
According to the published project information, the system configuration included:
Project Parameter | Published Information |
|---|---|
Energy storage system | 466kWh range-extended system |
Solar PV capacity | 100kWp external photovoltaic array |
Application | Temporary project headquarters and maintenance station |
Grid connection | No mains power supply |
Backup power | Diesel generator |
Operating strategy | Solar generation, battery storage and diesel backup |
Solar generation supplied most of the daytime electricity demand.
The energy storage system balanced electricity supply and consumption, while the diesel generator provided supplementary power when necessary.
This configuration allowed the project to use solar generation as a major energy source while retaining diesel backup for periods when additional electricity was required.
The project page provides the following figures for August:
Parameter | Published Result |
|---|---|
Solar PV generation | 7,364 kWh |
Diesel generator supplementary power | 5,264 kWh |
Reported power generation cost | RMB 0.94/kWh |
These figures are specific to the published project and reporting period. They should not be interpreted as guaranteed results for every mining or oil field application.
The case demonstrates how an integrated solar-storage-diesel system can be configured for a temporary project site and maintenance station without grid access.
For more information, visit the INJET remote project power supply case.
Selecting battery capacity based only on the number of workers or the size of a mining site can lead to an unsuitable configuration.
The system should be sized according to power demand, energy consumption and operating objectives.
List the main electrical equipment and record its rated power.
Important loads may include pumps, lighting, accommodation equipment, workshops, communication systems and processing machinery.
Determine which equipment may operate simultaneously.
Pay particular attention to motors, compressors and pumps because their startup requirements may differ from normal operating power.
Calculate how much electricity the site uses over a typical operating day.
Different shifts and production schedules may create different daily consumption patterns.
Identify which loads need to remain operational during periods of low solar generation or generator downtime.
The backup duration will influence the required battery energy capacity.
Review the available installation area, expected solar generation and seasonal conditions.
The PV system should be designed according to the site's actual solar potential.
Check the existing generator's rated power, fuel consumption, operating characteristics and control compatibility.
If the project already has generators, their integration requirements should be reviewed before selecting the energy storage equipment.
The project may prioritize:
Reducing diesel consumption
Increasing solar energy utilization
Supporting critical loads
Managing peak power demand
Providing off-grid electricity
Improving remote monitoring
These priorities determine how the EMS should coordinate the different power sources.
A mining project can have challenging environmental and operational conditions.
The following factors should be reviewed before selecting a hybrid energy storage system supplier.
Check the expected ambient temperature, dust exposure, humidity, rainfall and installation altitude.
The selected system must operate within its specified environmental limits.
Remote mining locations may have limited transportation infrastructure.
Review equipment dimensions, transport weight, lifting requirements, installation access and site preparation.
The system must match the site's voltage, frequency, electrical distribution and connected equipment.
Generator synchronization and other integration requirements should be checked during engineering design.
When the site is far from the main maintenance center, remote monitoring can help operators review system status and identify alarms.
Communication availability and monitoring arrangements should be confirmed before deployment.
Some mining sites begin with temporary facilities and expand as exploration or production progresses.
The initial system should be evaluated against possible future load growth.
A modular or expandable configuration may be useful where the project has a clear expansion plan.
Ask the supplier about commissioning, spare parts, maintenance procedures, warranty coverage and technical support arrangements.
These factors are particularly important for equipment installed in remote locations.
INJET's Mining & Oil Fields solution focuses on supplying electricity to remote industrial sites where grid access is limited or unavailable.
The published solution describes an integrated power architecture combining:
External solar PV
Battery energy storage
Diesel generator backup
Intelligent energy management
The objective is to use available solar energy, store surplus electricity and coordinate diesel generation when additional power is required.
INJET's HanCang product family is positioned for hybrid power applications with different capacity requirements.
The 261kWh model is described as a compact distributed power solution integrating solar, storage and diesel.
The product page identifies remote sites, telecommunications stations and small off-grid facilities among its intended applications.
For mining projects, it may be considered for smaller or distributed power requirements, subject to load and configuration review.
The 522kWh model provides a larger listed energy capacity.
The product page positions it for medium-scale applications such as construction projects, bridge projects and emergency power supply.
For mining-related projects, the required configuration should be evaluated according to the site's actual load profile, operating conditions and backup requirements.
Mining projects can vary significantly in their electricity requirements.
The appropriate solution should consider the battery capacity, PCS power, PV capacity, generator rating, control strategy and site environment.
For more details, explore the INJET HanCang 261kWh Energy Storage System and HanCang 522kWh Battery Energy Storage System.
A detailed project inquiry helps the supplier evaluate the system configuration more accurately.
Before contacting an off-grid mining power solution supplier, prepare the following information:
Project Information | Details to Provide |
|---|---|
Project location | Country, region and site conditions |
Mining application | Exploration site, mining camp, maintenance station or processing facility |
Grid availability | Off-grid, weak grid or limited grid capacity |
Total load | Estimated or measured connected power |
Peak demand | Maximum simultaneous power demand |
Daily consumption | Estimated electricity use in kWh |
Solar PV | Existing or planned PV capacity |
Generator | Existing generator rating and quantity |
Backup requirement | Critical loads and required backup duration |
Operating schedule | Working hours and shift arrangements |
Expansion plan | Expected future load growth |
If detailed electrical data is not available, equipment lists and generator specifications can be used as an initial reference.
The final design should be based on an engineering assessment of the site's power requirements.
Yes. A properly configured off-grid system can coordinate solar PV, battery storage and diesel generation to supply designated loads without a utility grid connection.
Solar PV can reduce dependence on diesel generation when sufficient solar resources and battery capacity are available. However, diesel generators may still be required as backup during periods of low solar generation or high electricity demand.
Battery storage balances energy supply and demand. It can store surplus solar electricity, supply power when generation decreases and support short-duration changes in electrical demand.
The required capacity depends on peak power, daily electricity consumption, backup duration, solar generation and generator configuration. An engineering assessment is needed before selecting the battery size.
Potentially, yes. The generator, PCS, control system and electrical protection must be compatible. Existing generator specifications should be provided during the system design process.
INJET lists Mining & Oil Fields as one of its official solution categories. The published solution combines solar PV, battery storage and diesel generation for remote industrial operations.
The published INJET project reference demonstrates a 466kWh range-extended energy storage system combined with 100kWp solar PV for a temporary project headquarters and long-term maintenance station without grid access. Other projects require their own load and configuration assessments.
Reliable electricity is an important requirement for remote mining operations, exploration areas and oil field facilities.
A hybrid energy storage system can coordinate solar PV, battery storage and diesel generation to provide a more flexible approach to off-grid power supply.
For mining operators, the most important considerations include electrical load characteristics, solar availability, battery capacity, generator compatibility, site conditions and future expansion requirements.
INJET's Mining & Oil Fields solution is designed around this multi-source energy architecture. Its published project reference, featuring a 466kWh range-extended system and 100kWp solar PV, provides a practical example of how solar, storage and diesel generation can work together at a remote project site.
If your mining or oil field project requires an off-grid or hybrid power solution, contact INJET with your load profile, existing generator specifications and site information to discuss a suitable system configuration.