| Guide Covers | Procurement · Supplier Evaluation · OCPP · CSMS · ROI · Fleet Depot Design |
| Global EV Charging Market (2025) | $48.9 billion — projected $219.3B by 2030 (MarketsandMarkets, 2025) |
| US Public Charging Stations Target | 500,000 by 2030 under NEVI Program (FHWA) |
| Hardware Share of Total Project Cost | 35–55% — civil works, grid upgrades, and O&M make up the remainder |
| Minimum Viable Utilization Rate | ≥ 15% per station for financial sustainability (Rocky Mountain Institute, 2024) |
| OCPP Standard (Recommended) | OCPP 2.0.1 — required for smart charging, V2G, and Plug & Charge |
| JointCharging Product Range | 7 kW AC (Level 2) → 480 kW DC Fast Charging, CE & UL Certified |
The Challenge
Fleet Electrification Cannot Depend on Chargers Alone
Ride-hailing fleets require vehicles to remain available for long operating hours. If charging is unreliable, every interruption can reduce vehicle utilisation, driver income and fleet profitability.
This creates a particular challenge in markets where grid availability or power quality can vary.
A conventional grid-connected charging station may face several operational risks:
Charging interruptions caused by unstable grid supply
High peak demand when multiple vehicles charge simultaneously
Limited visibility into energy consumption and equipment performance
Inefficient use of locally generated solar energy
Higher operating costs caused by poor coordination between energy assets
Difficulty scaling from one station to a city-wide charging network
For Nigeria’s emerging electric mobility ecosystem, the challenge was therefore not simply to install more charging points. The project required an energy infrastructure model capable of supporting fleet operations under real local power conditions.
The Project Objective
The partners are developing a pilot Joint Energy Hub in Abuja as the foundation for a wider electric mobility network.
The project is intended to demonstrate that an EV charging station in a weak-grid environment can be:
Technically reliable
Commercially practical
Operationally scalable
Locally supported
Less dependent on grid electricity
The initial programme covers a pilot station, a planned network of 10 hybrid solar-powered charging stations and the deployment of 400–500 electric vehicles for ride-hailing operations.
Future expansion could increase the charging network to 30 stations across Abuja, Lagos, Port Harcourt, Kano, Kaduna and Gombe.
The Solution
One Coordinated Energy System
Joint Tech’s proposed solution integrates four core components:
1. Solar PV Generation
Solar panels generate electricity locally during daylight hours, reducing the amount of energy that must be purchased from the grid.
The solar system can supply charging demand directly when conditions allow and can also charge the battery energy storage system for later use.
2. Battery Energy Storage System
The BESS stores available solar or grid electricity and releases it when required.
This can help the station:
Continue operating during grid interruptions
Reduce sudden demand on the grid
Store surplus solar electricity
Support charging during periods of high vehicle demand
Shift energy usage to more economical operating periods
3. EV Charging Infrastructure
The charging equipment is planned around the operational requirements of ride-hailing and commercial fleets.
Instead of treating each charger as an isolated device, the system coordinates charging demand with available solar generation, stored energy and grid capacity.
This approach helps operators balance charging speed with overall site energy availability.
4. Energy Management System
The EMS connects the site’s solar generation, battery storage and EV chargers through one management layer.
Operators can use the platform to:
Monitor energy generation and consumption
View charger and station status remotely
Coordinate charging demand across connected vehicles
Manage battery charging and discharging
Identify abnormal operating conditions
Analyse historical performance data
Improve energy and asset utilisation over time
The objective is to ensure that electricity is not merely supplied—it is intelligently generated, stored, distributed and consumed.
How the System Works
During periods of strong solar generation, locally produced electricity can supply vehicle charging and charge the battery storage system.
When solar output decreases or charging demand increases, the BESS can discharge stored electricity to support the chargers. Grid electricity remains available as an additional energy source when required.
The EMS continuously coordinates these assets according to available energy, charging demand and operating priorities.
This integrated structure is designed to improve charging continuity while reducing dependence on an unstable grid.
Local Partnership Model
Long-term infrastructure projects depend on more than technology. They require local implementation, service capacity and clear operational responsibility.
The Abuja project combines the complementary capabilities of three partners.
CAWIN Mobility
CAWIN Mobility contributes the electric vehicles, ride-hailing application and future charging demand. Its fleet operations provide the real-world use case around which the charging network is being developed.
Blue Camel Energy
Blue Camel Energy contributes local energy-market experience, project implementation and operational coordination in Nigeria.
Joint Tech
Joint Tech contributes the Joint Energy Hub architecture, including EV charging, battery storage, solar integration, EMS technology and technical support.
Joint Tech also maintains local capabilities through its facility in the Lekki Free Zone and an Abuja-based engineering team supporting installation, commissioning and after-sales service.
Developing Local Technical Capability
The project also includes the planned Abuja Electric Vehicle Technical Excellence Centre.
The centre is intended to support technical training in:
EV maintenance and diagnostics
Battery technology and battery management
EV charging infrastructure
High-voltage electrical safety
Equipment installation and commissioning
Research and technology transfer
Developing local skills will help ensure that the vehicles and charging infrastructure can be operated, serviced and expanded sustainably.
Expected Project Value
As the pilot and subsequent stations are developed, the integrated model is expected to create value in five areas.
More Reliable Charging
Solar generation, battery storage and grid electricity provide multiple coordinated energy sources instead of relying entirely on the grid.
Better Energy Utilisation
The EMS helps direct available electricity to the vehicles, batteries or other loads according to real-time operating needs.
Higher Fleet Availability
More dependable charging can help ride-hailing vehicles spend more time in service and less time waiting for energy.
Scalable Operations
A common energy and management architecture can be replicated across additional stations and cities as fleet demand grows.
Stronger Local Support
Local assembly, warehousing, engineering and technical training reduce dependence on remote support and strengthen long-term operational capability.
From Pilot Project to a Replicable Model
The Abuja pilot is the first step.
Operational data from the initial station will help the partners evaluate charging demand, energy flows, battery usage, equipment performance and fleet behaviour. These insights can then guide the configuration and rollout of future sites.
The broader goal is to create a repeatable model for fleet and public EV charging in locations where grid limitations make conventional charging infrastructure difficult to operate reliably.
By integrating vehicles, charging, renewable energy, storage, software and local service, the project is designed to support not just an individual charging station, but a complete electric mobility ecosystem.
Turning Every Kilowatt into Value
For Joint Tech, the Abuja project reflects a central principle: the future of charging infrastructure is not defined only by the number or power of the chargers.
Its value depends on how effectively every energy asset works together.
By combining PV, BESS, EV charging and EMS within one coordinated system, Joint Energy Hub helps businesses transform available electricity into reliable mobility, stronger operations and long-term commercial value.
Joint Energy Hub — Turning Every Kilowatt into Value.
1. Real-Time Visibility
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DC Fast Charging Site: Unit Economics Model
| Module | Capability Required | 1–50 Sites | 50–500 Sites | 500+ Sites |
|---|---|---|---|---|
| Device Monitoring | Real-time status, fault alerts, remote reset | Required | Required | Required |
| Billing & Payment | Time-of-use, flat-rate, membership, Stripe/PayPal integration | Required | Required | Required |
| OCPI Roaming | Inter-network roaming (Hubject, eMIP, OCPI 2.2.1) | Optional | Required | Required |
| Smart Load Management | Dynamic power sharing, demand response, grid signals | Optional | Required | Required |
| Open API / Webhooks | Integration with ERP, fleet platforms, energy management | Optional | Optional | Required |
Frequently Asked Questions
What is a Charge Point Operator (CPO)?
A Charge Point Operator (CPO) is a company or individual that installs, owns, and operates EV charging infrastructure. CPOs manage everything from hardware procurement and installation to ongoing operations, billing, and maintenance. They may operate public, semi-public (workplace, retail), or private (fleet depot) charging networks.
What is the difference between a CPO and an EMSP?
While a CPO manages the physical charging hardware and infrastructure, an EMSP (E-Mobility Service Provider) provides the digital services connecting drivers to chargers, such as mobile apps, payment integration, and roaming access.
What certifications should CPOs require from EV charger suppliers?
Suppliers should provide essential certifications like CE, UL, and FCC compliance, alongside cybersecurity validations and OCPP 2.0.1 interoperability protocols.
Building or Scaling a Charging Network?
Joint Tech has designed and supplied AC and DC fast charging infrastructure and energy storage systems to CPOs, fleet operators, and distributors in 30+ countries. Whether you need 5 wallboxes or a 500-charger deployment with ESS integration, we provide hardware, certifications, and technical support to get you operational on schedule.
