How a Grade-A Office Complex Sized Its First 12 Charging Bays
A practical guide to load as
e to load assessment, infrastructure planning,
and future-ready EV charging for commercial spaces
- June 12, 2025
- 16 Min Read
- Smart Charging
Introduction
As electric vehicles become mainstream, Grade-A office complexes are under increasing pressure to provide reliable, convenient, and future-ready charging for employees, tenants, and visitors. But installing EV chargers isn’t just about picking a number-smart sizing is essential to ensure performance, safety, and scalability. In this blog. we break down how a leading Grade-A office complex successfully planned and sized its fIrst 12 charging bays-from assessing demand and calculating electrical loads to designing infrastructure that’s built for the future.
Right-sizing today prevents overloading tomorrow.
In This Article
- 1. Project Overview
- 2. Understanding Requirement
- 3. Load Calculation & Analysis
- 4. Infrastructure Planning
- 5. Charging Setup Designed
- 6. Smart Load Management
- 7. Implementation Approach
- 8. Results & Key Takeaways
- 9. Future Scalability
1. Project Overview
The client, a premium Grade-A office complex with multiple towers and a large visitor footfall, wanted to offer EV charging as part of its sustainability initiative and tenant amenities.
Location
Urban Business District
Total Parking
850+ Vehicles
Initial EV Bays Planned
12 Bays
Charging Type
AC Fast Charger (22kW)
Key Takeaways
- Right-sized for current needs and future growth
- Balanced electrical load calculation ensures safety
- Smart load management optimizes performance
- Scoluble infrastructure (22kW) reduces future costs
2. Understanding Requirements
We started by studying current usage patterns, future EV adoption forecasts, and stakeholder expectations.
- Employee & visitor behavior analysis
- Expected EV adoption in 3-5 years
- Charging duration preferences
- Availability of electrical load from the utillity
Why Smart Sizing Matters
Prevents overloads
and downtime
Optimizes energy
consumption
Improves user
experience
Future-proofs your
EV infrastructure
3. Load Calculation & Analysis
Accurate load calculation was critical to ensure we didn’t enceed the sanctioned load while Build Future-Ready meeting charging demand.
Build Future-Ready EV Infrastructure
Let SiotaEV help you design,
install & manage smart
charging solutions.
4. Infrastructure Planning
We designed the electrical infrastructure to handle current needs while allowing easy scalability.
- Upgraded DB with dedicated EV panel
- Energy meters for individual chargers
- Proper cable sizing & protection
- Provision for future additional bays
- Compliance with IS 17017 & ARAI guidelines
5. Charging Setup Designed
The client opted for 12 AC Fast Chargers (22kW) with intelligent
load management.
22kW
Per Charger
OCPP 1.6J
Enabled
RFID/ App
Access
Real-time
Monitoring
6. Smart Load Management
To avoid peak load issues, we implemented dynamic load
management.
- Real-time load monitoring
- Dynamic power allocation
- Prevents overloads
- Ensures all vehicles get optimized charging
- Cloud-based dashboard & alerts
7. Implementation Approach
The project was executed in phases to minimize disruption
and ensure quality.
- Site survey & feasibility
- Detailed engineering & approvals
- Procurement of chargers & materials
- Installation & testing
- Commissioning & training
8. Results & Key Takeaways
The office complex now has a reliable, scalable, and efficient EV charging system that enhances tenant experience and supports sustainability goals.
12
Charging Bays Installed
264 kW
Total Charging Capacity
17.6%
Of Total Load Utilzed
100%
whewaole thersy Integration Ready
9. Future Scalability
The infrastructure is designed to support up to 40+ charging bays in the future without
major overhauls.
- Modular design for easy expansion
- Spare capacity in DB & cable trays
- Future-ready for DC fast chargers
Ready to Build Your EV Charging Infrastructure?
From lond calculation to installation and management, SiotaEV
dellvers end-to-end smart charging solutions for modem businesses.