Off-grid Power Deployment and Benefit Analysis in Weak Grid Areas

Abstract

For telecom base stations in weak-grid areas, the most economical solution is a hybrid off-grid power architecture integrating solar system + LiFePO₄ energy storage + backup diesel generator + high-frequency rectifier system.

A typical configuration includes:

The solution can achieve:

• Base station availability ≥ 99.5%
• Diesel consumption reduction by 60%–90%
• Investment payback period of approximately 3–6 years 

EverExceed provides a complete telecom power solution including:

• ESB telecom power system
• Solar system
• LiFePO₄ energy storage system
• MPPT controller
• Intelligent remote monitoring platform

Tower structures, civil foundations and EPC services are provided by owners or third-party contractors. EverExceed focuses on power system interface design, installation guidance and commissioning support to ensure smooth integration with tower structures, grounding and power distribution systems.

Key Highlights

1. Why Weak Grid Areas Require Hybrid Off-Grid Power Solutions

Weak grid areas do not always mean areas without electricity.

Many telecom sites experience limited grid availability:

Common challenges include:

• Voltage instability
• Frequent power outages
• Feeder trips
• Difficult fuel transportation

Therefore, telecom power systems should be designed with off-grid capability to maintain continuous operation of:

• Radio equipment
• Transmission equipmen
• Cooling systems
• Security systems
• Access control systems

For typical single-tenant macro sites, continuous load is around 2–6 kW, depending on:

• Radio equipment quantity
• Battery charging requirements
• Cooling demand

Higher-capacity multi-tenant or microwave sites may exceed 8–12 kW.

From a site integration perspective, the power system must also coordinate with tower structures and layout.

In weak-grid projects, EverExceed coordinates with tower suppliers during early design, including:

• Equipment cabinet layout
• Load requirements
• Grounding connection
• Site access planning

to ensure reliable system integration.

2. Case Architecture: EverExceed Hybrid Off-Grid Telecom Base Station Power Solution

Case 1: Remote Telecom Base Station Hybrid Power Deployment

Project Conditions

A remote telecom base station with an average DC load of 3.5 kW. Grid power is available for only 6 hours/day, and fuel delivery is required every 3–4 weeks.

The tower structure and foundation are provided by a third-party contractor. EverExceed supplies the complete hybrid power system.

System Configuration

Design Target

Core System Components (EverExceed Supply Scope)

The EverExceed hybrid telecom power architecture includes:

Tower Structure and Power System Integration

Tower structures (12 m shared pole, 15 m monopole tower or 40 m monopole tower) and civil foundations are provided by owners or third-party suppliers.

EverExceed provides:

This ensures seamless integration between telecom power systems, tower structures and civil infrastructure.

Load Separation Advantage

The key advantage of hybrid architecture is load separation.

Benefits:

• Improves energy efficiency
• Reduces inverter dependence
• Minimizes unnecessary consumption

Reducing parasitic loads by 5%–10% can also reduce required battery capacity and generator operating time.

Capacity Design Logic Under Weak Grid Conditions

1. Battery Capacity Design

Battery capacity is determined by critical load and backup duration.

Example:

Considering 80% DOD:

35 kWh ÷ 80% = 43.75 kWh

Recommended configuration:

45–50 kWh LiFePO₄ battery system

For sites with temperatures up to 45°C, consider:

• Battery capacity derating
• Thermal management design
• Cabinet cooling solutions

2. Solar System Capacity Design

Solar capacity depends on:

• Solar irradiation
• Seasonal generation
• Battery recharge requirements
• System losses

Typical high irradiation condition:

Design should consider:

• Worst-month solar conditions
• Dust losses
• Temperature impact

3. Generator Capacity Design

Generator sizing should consider both site load and battery charging power.

Example:

An undersized generator may cause:

• Inefficient operation
• Higher fuel consumption
• Shorter maintenance intervals

Case 2: 40m Industrial Monopole Tower Deployment

Industrial communication sites usually require higher tower capacity and stable power supply for LTE/4G networks, CCTV backhaul and microwave transmission.

Deployment Example

Expected Performance

Actual diesel reduction depends on solar conditions, battery dispatch strategy, load profile and thermal management.

Compared with diesel-only operation, the hybrid architecture reduces fuel consumption, generator runtime and maintenance requirements.

Weak Grid Telecom Power Solution Comparison

Different site conditions require different power architectures.

For telecom operators, hybrid systems shift cost from continuous fuel consumption to controlled equipment investment. Although diesel-only systems have lower initial cost, fuel logistics, security and maintenance often increase lifecycle costs.

Technical Design, Standards & Site Integration

A bankable telecom off-grid project should define key engineering requirements before procurement, including:

• Wind speed requirement: 40–50 m/s
• Structural lifetime: 30 years
• DC architecture: 48V telecom power system
• Battery and solar compliance: IEC / UL related certifications

Tower structural design is provided by tower suppliers, while EverExceed ensures the power system meets electrical requirements and interface specifications.

Interface Coordination Between Power System and Tower Structure

In telecom infrastructure projects, failures often occur at system interfaces rather than individual equipment.

Common integration challenges include:

• Equipment installation space
• Load requirements
• Grounding design
• Cable routing
• Lightning protection
• Power control logic

To avoid redesign and installation issues, EverExceed provides complete interface documents:

This ensures smooth integration between EverExceed power systems, tower suppliers and civil contractors.

Structural & Electrical Compliance Requirements

Compliance requirements should be clearly divided according to supplier responsibility.

Tower suppliers are responsible for structural compliance, while EverExceed ensures electrical equipment compliance.

Shared Pole Application Considerations

The 12m shared pole integrates 10kV power distribution and telecom loads on the same structure.

Compared with independent poles, shared pole solutions can reduce corridor occupation by approximately 30%–50%.

Successful deployment requires coordination of:

• Electrical clearance distance
• Equipotential bonding
• Maintenance access
• Grounding system
• Lightning protection

For shared pole applications, EverExceed ensures the DC power system is properly isolated and coordinated with the 10kV distribution system.

Thermal Management Considerations

Battery thermal management is critical in remote telecom applications.

When battery cabinet temperature remains above 30–35°C, battery lifetime may decrease. Cooling strategy should be selected based on environmental conditions.

If an additional 2%–5% auxiliary energy consumption can extend battery lifetime from 5 years to 8–10 years, the investment is usually justified.

Investment Analysis & Delivery Structure

EverExceed focuses on the design and supply of the telecom power system package, including:

• 48V telecom power system
• Solar system
• LiFePO₄ battery storage
• MPPT controller
• Remote monitoring system
• Commissioning support

Tower structures, civil foundations and EPC works are provided by owners or third-party contractors.

EverExceed provides technical documents, installation guidance and commissioning support to ensure smooth project execution.

Three Delivery Models

ROI & Operating Cost Analysis

For a typical telecom site with a 3.5 kW average load, diesel-only operation results in high operating costs due to:

• Generator charging inefficiency
• Idle fuel consumption
• Fuel transportation
• Security risks
• Maintenance travel

When fuel logistics costs are considered, hybrid power systems can significantly reduce total operating expenses.

Typical investment recovery period:

3–6 years

The fastest return is usually achieved in sites with:

• High fuel transportation costs
• Frequent outages
• Difficult access conditions
• High maintenance expenses

Example Calculation

If an EverExceed hybrid system achieves:

The annual OPEX can be significantly reduced.

Additional benefits, including carbon reduction value and improved network availability, are not included.

Therefore, EverExceed evaluates projects based on 5-year Total Cost of Ownership (TCO) rather than initial equipment price only.

For operators managing dozens or hundreds of sites, portfolio-level savings are usually more important than single-site equipment cost.

Frequently Asked Questions (FAQ)

Q1: What is an off-grid telecom base station power system?

An off-grid telecom power system provides continuous power without relying on stable grid supply.

Typical configuration:

• 48V DC telecom power system (EverExceed ESB)
• 5–15 kW solar system
• 20–80 kWh LiFePO₄ battery
• 8–20 kVA backup generator

It ensures continuous operation of RF, transmission and control equipment during outages or unstable grid conditions.

Tower structures and civil works are provided by owners or third parties.

Q2: Why are weak-grid sites designed like off-grid systems?

Weak-grid sites may only have 4–12 hours of grid availability per day, with voltage fluctuations and frequent outages.

Therefore, operators require battery storage and backup generation to maintain network availability.

Q3: What solar and battery capacity does a telecom site require?

For typical sites with 2–6 kW continuous load:

• Solar system: 5–15 kW
• Battery storage: 20–80 kWh LiFePO₄
• Backup duration: 8–24 hours

The final sizing depends on load profile, solar conditions, temperature and backup requirements.

Q4: How does a hybrid system compare with diesel-only operation?

A solar hybrid system can reduce diesel consumption by 60%–90%, while lowering:

• Fuel transportation costs
• Generator runtime
• Maintenance requirements
• Noise and emissions

The actual performance depends on solar resources and energy management strategy.

Q5: Does EverExceed provide telecom towers and civil works?

No.

EverExceed focuses on telecom power solutions, including:

• ESB telecom power system
• Solar system
• Battery storage
• Monitoring platform
• Commissioning support

Tower structures, foundations and EPC works are provided by owners or third parties.

Q6: Which standards should be considered for procurement?

Standards should be divided by supplier responsibility:

• Tower structure: TIA-222-H / EN 1993-3-1
• Solar modules: IEC 61215 / IEC 61730
• Battery safety: UL 1973 or IEC standards
• Grid interface: IEEE 1547 (when applicable)

Tower suppliers handle structural compliance, while EverExceed ensures power system compliance.

Q7: What maintenance is required for hybrid telecom power systems?

Typical maintenance includes:

• Monthly remote monitoring and alarm review
• Quarterly battery and rectifier inspection
• Solar cleaning according to environment
• Generator maintenance based on runtime

EverExceed monitoring can help reduce emergency site visits by 20%–40%.

Q8: What is included in EverExceed’s delivery scope?

EverExceed provides:

• System design
• ESB telecom power system
• Solar and battery system
• Controller and monitoring
• Factory testing
• Installation guidance
• Commissioning support

Tower supply, civil construction and EPC services are outside the supply scope.

Q9: How are pricing and delivery models organized?

EverExceed supports:

• FOB supply: Equipment delivered from factory or FOB port
• CIF delivery: Equipment + shipping and insurance
• On-site support: Installation guidance and commissioning

Large-scale projects may receive volume-based pricing support.

Q10: What is the expected ROI period?

Compared with diesel-only operation, many weak-grid telecom sites can achieve:

3–6 years investment recovery

Faster payback usually occurs in sites with:

• High fuel costs
• Frequent outages
• Difficult transportation conditions
• High maintenance expenses

Q11: How does the power system integrate with tower structures?

EverExceed provides interface documents covering:

• Equipment dimensions
• Load requirements
• Grounding connection
• Cable routing
• Lightning protection coordination

This helps tower suppliers and civil contractors complete smooth integration.

Q12: What information is needed to start a project discussion?

Customers should provide:

• Site load data
• Grid outage conditions
• Required backup time
• Solar conditions
• Tower height and site limitations
• Logistics requirements

EverExceed can then recommend the suitable solar, battery and telecom power configuration.

Conclusion

For telecom base stations in weak-grid and remote areas, a hybrid off-grid power system combining:

5–15 kW solar system + 20–80 kWh LiFePO₄ battery + backup generator

can achieve:

• ≥99.5% system availability
• 60%–90% diesel consumption reduction
• 3–6 years investment recovery

The key challenge for remote telecom infrastructure is not only power generation, but also long-term reliability, operating cost control and system integration.

EverExceed provides complete telecom power solutions covering:

• ESB 48V telecom power systems
• Solar systems
• Energy storage systems
• MPPT controllers
• Remote monitoring platforms

Through flexible delivery models including FOB supply, CIF delivery and on-site technical support, EverExceed works with tower suppliers, EPC contractors and telecom operators to deliver reliable power solutions for weak-grid base station deployment worldwide.

About EverExceed

EverExceed is a global power electronics solution provider specializing in telecom power systems, UPS, energy storage solutions and intelligent monitoring platforms.

The EverExceed ESB telecom power system adopts a high-frequency modular 48V DC architecture featuring high efficiency, flexible expansion and reliable operation. It is widely applied in telecom base stations, remote communication sites and weak-grid regions.

EverExceed focuses on power system design, manufacturing and delivery, while tower structures and civil construction are completed by owners or third-party contractors.

With customized solutions and professional technical support, EverExceed provides reliable power infrastructure solutions for B2B customers across more than 100 countries.