Proven Project Deployments
Public EV Charging Infrastructure Projects
Real deployments demonstrating reliable and scalable EV charging infrastructure — from commercial parking to highway hubs, fleet depots, and solar-integrated charging stations worldwide.
30+
Countries with EV charging deployments
500+
Charging infrastructure projects
50K+
EV charger units shipped annually
1GWh+
ESS capacity deployed with charging
3.8yr
Average project payback period
Operator Pain Points
Challenges Faced by
Charging Infrastructure Operators
Operators building public, commercial, and fleet charging infrastructure encounter a consistent set of critical obstacles. Understanding these challenges is the first step toward designing infrastructure that actually performs.
#
Challenge & Description
Impact Category
Severity Level
01
Grid Capacity Limitations
Existing grid connections cannot support simultaneous high-power DC fast charging. Upgrading the transformer costs $150K–$400K+ and takes 12–36 months — blocking fast-charging deployment entirely.
CAPEX · Timeline
02
High Peak Electricity Demand Costs
Multiple vehicles charging simultaneously creates demand spikes. Demand tariff penalties can represent 30–50% of total electricity costs — a recurring financial wound that destroys charging economics.
OPEX · Recurring
03
Charging Demand Uncertainty & Revenue Risk
Predicting EV adoption and utilisation rates for new sites is inherently uncertain. Traditional infrastructure models have no fallback revenue — meaning poor utilisation in early months leads directly to project failure.
Revenue · Risk
04
Infrastructure Investment & Payback Uncertainty
Grid-only charging projects typically require 6–10 year payback periods — far beyond what most investors accept. Without ESS and demand charge savings, the numbers rarely work for commercial viability.
Investment · ROI
05
Power Quality Instability
EV charger switching loads introduce harmonics and voltage fluctuations that affect sensitive equipment in the same facility. In emerging markets, grid instability compounds this — damaging charger hardware and increasing maintenance costs.
Reliability · Ops
06
Energy Management Complexity
Balancing solar input, battery state, charging schedules, grid tariffs, and demand limits requires sophisticated EMS software. Most charging-only vendors lack this capability — leaving operators unable to optimise the system they've invested in.
Technology · EMS
RUEN SOLAR addresses all six challenges through an integrated system combining ESS buffer, intelligent EMS, and factory-certified EV chargers — from a single manufacturer.
See Our Solution Approach →
EMS
Control
Control
Grid + Solar
Power Input
EV Chargers
Power Delivery
CPMS Platform
Cloud Management
RUEN ESS
Energy Buffer
Solution Architecture
What Is a
Smart Charging System?
A RUEN SOLAR charging infrastructure solution is more than chargers. It's a complete, factory-engineered energy system where each component serves a specific function — and all five are coordinated by intelligent EMS software.
01
EV Charging Equipment
AC 7–22kW and DC 30–240kW chargers — OCPP 1.6/2.0, CE & IEC 61851 certified. Multi-standard CCS2, CHAdeMO, Type 2.
02
Battery Energy Storage System (Optional)
RUEN LFP ESS 50kWh–1MWh. Absorbs demand peaks, stores off-peak energy, enables fast charging beyond grid rating.
03
Power Conversion System
Bidirectional AC/DC conversion — manages power flow between grid, battery, solar input, and chargers at ≥96% efficiency.
04
Energy Management System (EMS)
AI-driven dispatch — real-time load balancing, demand forecasting, tariff optimisation, solar scheduling. The intelligence that makes the system work.
05
Grid Integration & Cloud CPMS
Complete grid connection design, protection coordination, OCPP-compliant cloud platform with billing, remote monitoring, OTA updates.
System Architecture
How the Charging System Works
Engineering-grade architecture view showing energy flow from input source through storage and dispatch to final vehicle charging delivery.
RUEN SOLAR · EV Charging Infrastructure · System Architecture Diagram
REV. 2024.A
Input Layer
Grid + Solar PV
Primary power source
Solar PV optional input
Solar PV optional input
→
AC/DC
⭐ Control Core
EMS + RUEN ESS
Intelligent dispatch
LFP battery buffer
LFP battery buffer
→
Control
Output Layer
EV Chargers
AC 7–22kW
DC 30–240kW
DC 30–240kW
Grid Input
3-Phase AC up to 1MVA
Standard LV or MV connection
ESS Capacity
50kWh – 1MWh+
LiFePO₄, 8,000+ cycles
EMS Protocol
OCPP 1.6 / 2.0
ISO 15118 V2G ready
Peak Shaving
Up to 60% reduction
Demand charge elimination
System Efficiency
≥96% Round-trip
AC to vehicle DC
Representative Projects
Charging Infrastructure
Projects in the Field
RUEN SOLAR charging solutions deployed across commercial, fleet, and public infrastructure environments. Click any project to expand full details.
Solar Hub
🇿🇦 South Africa · Cape Town
Solar + Storage Fast Charging Hub
Mixed commercial district hub combining 500kWh RUEN LFP storage with 8 DC fast chargers and rooftop solar PV. Designed to remain operational during grid outages — critical in South Africa's load-shedding environment.
500kWh
LFP Storage
8× DC
Fast Chargers
-58%
Demand Cost
▾
Customer Challenge
- Frequent grid outages disrupted charging operations multiple times weekly
- Peak demand charges made charging economics unviable without storage
- No existing grid capacity for 8 simultaneous DC fast chargers
- Developer required bankable project IRR of ≥18% for investor approval
RUEN Solution Deployed
- 500kWh RUEN LFP ESS containerised unit — backup + peak shaving
- 8× RUEN 120kW DC fast chargers, CCS2 + CHAdeMO
- 150kWp rooftop solar PV integrated via EMS
- OCPP 2.0 cloud platform with billing, revenue reporting, remote diagnostics
Results Achieved
- 58% reduction in peak demand electricity charges
- 8-hour off-grid charging capability during load shedding
- ~$0.03/kWh marginal cost from solar storage by mid-day
- Project payback: 4.2 years, IRR 21%
Fleet Depot
🇲🇾 Malaysia · Selangor Industrial Park
Logistics Fleet Overnight Charging Depot
Overnight depot charging for 40-vehicle electric delivery fleet. Peak demand shaving through 200kWh RUEN ESS prevents industrial tariff spikes during simultaneous plug-in at shift change.
40
Fleet Vehicles
40× 22kW
AC Chargers
-52%
Demand Cost
▾
Customer Challenge
- 40 vehicles returning simultaneously at 18:00 created a 880kW demand spike
- Industrial tariff demand charge of $12/kW/month — unacceptable cost burden
- Existing electrical infrastructure designed for non-EV operation
RUEN Solution Deployed
- 40× RUEN 22kW AC smart chargers with dynamic load balancing
- 200kWh LFP ESS buffer — pre-charged off-peak, discharged at shift change
- EMS coordinating peak shaving profile with fleet scheduling
Results Achieved
- 52% reduction in peak demand charge billing
- Entire fleet fully charged within 9 hours overnight
- Zero vehicle charging failures reported across 12-month operation
- Project payback: 3.8 years
Public Hub
🇬🇭 Ghana · Accra Business District
Urban Public Charging Station — Grid-Independent
Urban public charging station serving commercial district with unreliable grid supply. 100kWh RUEN ESS provides 8-hour operation window independent of utility — enabling a reliable paid charging service in a challenging grid environment.
100kWh
ESS Backup
8hr
Off-Grid Window
96%
Uptime
▾
Customer Challenge
- Accra grid experiences 3–6 outages per day averaging 2 hours each
- Charging-only stations in same location had failed commercially due to unreliability
- Operator required SLA of ≥95% uptime to sign business partnerships
RUEN Solution Deployed
- 2× RUEN 60kW DC fast chargers + 6× 22kW AC chargers
- 100kWh RUEN LFP ESS with automatic grid/battery switchover
- OCPP payment terminal integration with mobile money API
Results Achieved
- 96.4% service uptime across 18 months of operation
- Charging revenue sustained through all grid outages
- Operator signed 3-year B2B fleet charging agreements on strength of uptime record
Highway Hub
🇰🇪 Kenya · Nairobi–Mombasa Corridor
Highway Fast Charging Service Point
High-throughput highway fast charging on Kenya's primary inter-city route. ESS buffer enables 4× 120kW charging guns on a 200kW grid connection — without any transformer upgrade on the existing roadside supply.
4× 120kW
DC Guns
300kWh
ESS Buffer
$0
Grid Upgrade Cost
▾
Customer Challenge
- Roadside supply limited to 200kW — insufficient for 4 simultaneous 120kW charges
- Grid upgrade quoted at $280,000 with 24-month delivery — project killer
- Highway location required high power, short dwell-time charging (30 min target)
RUEN Solution Deployed
- 4× RUEN 120kW DC fast chargers with CCS2 + CHAdeMO
- 300kWh RUEN LFP ESS — delivers 240kW burst charging on 200kW grid
- EMS schedules off-peak battery charging for peak throughput readiness
Results Achieved
- Full 480kW simultaneous output on a 200kW grid connection
- $280,000 grid upgrade cost completely avoided
- Average vehicle charge time 28 minutes (80%)
- Station profitable within first operating year
System Configurations
Typical Charging System
Configurations
These four standard configurations cover the most common EV charging deployment scenarios — from commercial parking to highway hubs. Each is fully customisable around your grid, site, and investment requirements.
Config 01
Grid
→
EMS
→
AC x N
Commercial AC Charging Station
Smart AC charging for parking facilities, office parks, and commercial sites with dynamic load balancing across all bays.
Power
7–22kW
Scale
4–40 bays
Payback
4–6 yr
Best for: Office parks, hotels, retail centres
Explore this configuration →
Config 02
Grid
→
ESS Buffer
→
DC Fast
DC Fast Hub + ESS Buffer
High-power public charging with battery buffer — enables 240kW+ simultaneous output on a limited grid connection without expensive upgrades.
Charger
30–240kW
ESS
100–500kWh
Grid Save
Up to $280K
Best for: Highway stations, urban fast hubs
Explore this configuration →
Config 03
Solar PV
→
LFP ESS
→
EV Hub
Solar + Storage Charging Hub
Zero-carbon charging with near-zero marginal energy cost. Solar PV feeds the LFP battery, which powers EV chargers day and night — grid-independent when required.
Solar
50–500kWp
ESS
100kWh–1MWh
Payback
3–5 yr
Best for: Emerging markets, off-grid sites, sustainability goals
Explore this configuration →
Config 04
Grid
→
Fleet EMS
→
Fleet x40+
Fleet Overnight Charging Depot
Intelligent overnight depot charging for commercial fleets. ESS buffer prevents demand spikes at shift-change plug-in. Fleet scheduler optimises every charge window.
Chargers
22kW × 20–100
ESS
200–500kWh
Demand
−55%
Best for: Logistics fleets, bus depots, municipal vehicles
Explore this configuration →
Results Achieved
What Operators Gain
From RUEN Systems
Integrated ESS + smart EMS + certified EV chargers deliver measurable improvements across every operational metric — turning charging infrastructure from a cost centre into a profit centre.
Electricity Cost
Demand Charge Reduction
Grid peak demand charge (before)
−$18,400/mo
ESS peak shaving saving
+$11,040/mo
Solar self-consumption offset
+$2,800/mo
Net Monthly Electricity Saving
−60%
Operational Reliability
Station Uptime & Revenue Protection
Grid-only station uptime (before)
58% avg
With RUEN ESS backup
96.4% avg
Off-grid operating window
4–12 hours
Uptime Improvement
+38%
Investment Return
Project Payback & IRR
Charging-only payback (industry avg)
7–10 years
RUEN integrated system payback
3–5 years
Typical project IRR achieved
18–24%
Average Payback Period
3.8 yr
These outcomes are drawn from live RUEN SOLAR deployments. Solar + ESS + EV charging integration consistently delivers results that charging-only systems cannot match.
Products Used in These Projects
RUEN SOLAR Charging
Equipment in the Field
Every project in this portfolio uses RUEN SOLAR equipment — designed, manufactured, and certified at our own factory. Not resold. Not rebadged. Ours.
RUEN-AC · Series 7–22
AC Smart Charging Stations
Level 2 commercial chargers with OCPP management, load balancing, and fleet scheduling integration.
Output Power
7 – 22kW
Connector
Type 1 / Type 2
Protocol
OCPP 1.6 / 2.0
Certification
CE · IEC 61851
RUEN-DC · Series 30–240
DC Fast Chargers
High-power DC for public hubs and highway stations. Multi-standard, ESS-buffer native, OCPP 2.0 ready.
Output Power
30 – 240kW
Connectors
CCS2 · CHAdeMO
ESS Ready
Native Integration
Certification
CE · IEC 61851
RUEN-ESS-EV · Series 50–1000
Integrated ESS + Charging
RUEN's factory-integrated LFP battery + EV charger system. The only combined solution manufactured by a single source.
ESS Capacity
50kWh – 1MWh+
Battery Type
LFP · 8,000+ cycles
Certification
IEC 62619 · CE
EMS
AI-optimised dispatch
▸ All products designed & manufactured at RUEN SOLAR factory · ISO 9001 · IEC 62619 · CE certified
Related Solutions
These Projects Are Part of
a Broader Energy Strategy
EV charging is one application within RUEN SOLAR's integrated energy ecosystem. The three solutions below work together — and link directly to the projects on this page.
Solution 01
Charging Infrastructure Solutions
End-to-end system design and deployment — grid intake, battery storage, smart EMS, and final EV charging delivery.
- Grid capacity analysis and connection design
- ESS peak shaving and backup integration
- EMS software and CPMS platform
- OCPP 2.0 billing and remote management
Solution 02
Fleet Electrification Systems
Overnight and rapid depot charging for commercial and logistics fleets — optimised around schedules, tariffs, and battery health.
- AI fleet scheduling and charge sequencing
- ESS buffer to prevent demand spikes at plug-in
- Fleet management API integration
- Per-vehicle energy reporting and billing
Solution 03
Solar + Storage Charging Hubs
Combine rooftop or ground PV, RUEN LFP storage, and EV chargers into one fully integrated energy and mobility hub.
- Solar PV sizing and production modelling
- LFP storage optimised for charging load profiles
- Grid-independent or hybrid operating modes
- ~$0.02–0.04/kWh marginal energy cost
Every solution above links back to the projects on this page. Talk to our engineering team to see which solution framework fits your deployment.
Explore All Solutions →
Ready to Build Your Project
How Can We Help
You Specifically?
Every team comes to us at a different stage. Choose the path that best describes where you are — we'll tailor our first conversation accordingly.
⚡ Site Operator
I have a site.
I need a working
charging system.
I need a working
charging system.
You've identified the location. Now you need engineering, equipment, and a deployment partner who owns the whole system — not just the chargers.
- My grid connection is limited — I can't afford an expensive upgrade
- I need ESS to control monthly demand charges
- I want OCPP billing and remote monitoring from day one
- I need one vendor who is responsible for the whole system
Get a System Proposal
→
🔧 EPC / Engineer
I'm designing
the system.
I need specifications.
the system.
I need specifications.
You're building the electrical design or procurement package. You need certified documentation, sizing support, and a manufacturer you can trust at BOM stage.
- I need full IEC/CE datasheets and third-party test reports
- I need ESS + charger sizing support from RUEN's engineers
- I want OCPP 2.0 and ISO 15118 compatibility confirmed
- I need OEM or white-label pricing for volume procurement
Request Technical Package
→
📊 Investor / Developer
I'm evaluating
the investment
business case.
the investment
business case.
You're assessing financial viability of a charging or solar+storage project. You need credible ROI models, payback benchmarks, and real reference projects.
- I need a detailed ROI model built around my specific site profile
- I want to speak with operators who've already deployed RUEN systems
- I need 10-year cash flow projections with ESS and tariff assumptions
- I want to understand grid upgrade cost avoidance in exact figures
Request ROI Analysis
→
30+ Countries
Projects deployed across Africa, Asia & the Middle East
Factory Direct
Equipment designed and manufactured by RUEN SOLAR
1GWh+ Deployed
Combined ESS across live charging projects globally
48hr Response
Proposal or ROI model delivered within two business days
IEC Certified
IEC 61851, IEC 62619 and CE certification across all products
Contact Us
Let's Start Your
Project Conversation
Our engineering team is available across every time zone. Whether you're scoping a first site or finalising a procurement BOM, reach us through whatever channel works for you.
Engineering team online · Typical reply within 4 hours
📐
Free System Design Review
Share your site parameters — we return a preliminary ESS + charger configuration and cost estimate at no charge.
📊
Project-Specific ROI Model
Tell us your grid tariff and site usage profile — we build a 10-year cash flow model for your exact scenario.
📦
Full Technical Documentation
IEC datasheets, test reports, OCPP compliance docs and certifications available on request — same day.
Send Us a Project Brief
Takes 2 minutes · No commitment · An engineer replies personally within one business day
500+ Projects · 30+ Countries · 1GWh+ ESS Deployed