EV Charging Infrastructure Design & MEP Consulting

With over 6 years of experience in designing EV-ready bus depots, port charging hubs, and freight corridors for 55T trucks, The Sustainer brings end-to-end EV architecture and engineering expertise to clients across India and abroad.

Scope of Work for EV Charging Infrastructure Projects

1. Architectural & Civil Design

  • Site layout and parking plan
  • Vehicle manoeuvrability layouts
  • Signage, canopy, and branding wall design
  • Drivers’ lounge and admin office planning
  • 3D visualizations and site augmentation plans
  • BOQ with pricing, warranty, and delivery detail

From site planning and architecture to electrical engineering and pre-deployment studies, we bring every critical layer together into one coordinated infrastructure strategy.

2. Load Assessment & Electrical Infrastructure Planning

EV charging infrastructure can significantly impact a property’s electrical demand. Our engineering team evaluates the expected charging load and develops the required load calculations, demand assessment, transformer requirements, distribution infrastructure, cable sizing and electrical layouts. The objective is to ensure that the charging system is designed around the site’s actual power infrastructure rather than simply selecting chargers based on their rated capacity.

 

3. From EV Charger To EV Charging Ecosystem

An EV charging station is no longer just a charger connected to an electrical supply. It is an integrated infrastructure ecosystem involving:

EVSE + HT/LT Infrastructure + Power Distribution + Civil Works + Architecture + MEP + ICT + Mobility + Safety + Energy Management + Operations

Our engineering approach brings these disciplines together under one coordinated design framework.

The result is an EVCS that is:

  • Safe
  • Efficient
  • Scalable
  • Technology agnostic
  • Operationally optimised
  • Customer-centric
  • Future-ready
  • Standardised for multi-site deployment

India’s 2024 EV charging infrastructure guidelines explicitly recognise EVCI as a network comprising EVSE, grid connection, metering, power management, communications, civil infrastructure, and related systems—not merely the charger itself. (Ministry of Power, Government of India)

EVSE & CHARGER INTEGRATION

 

The charger is only one component of the syste
Our EVCS engineering integrates the selected EVSE architecture with the complete site infrastructure.

We coordinate:

  • AC charging infrastructure
  • DC fast charging
  • High-power charging
  • Charging dispensers
  • Charging guns & cable management
  • EVSE foundations
  • Power distribution
  • Communication interfaces
  • Charger protection
  • Emergency isolation
  • Cable routing
  • Vehicle compatibility
  • Future charger expansion

 

India’s current framework is technology-agnostic and incorporates Indian and international charging standards. BIS also maintains standards covering areas such as conductive charging systems and ISO 15118 vehicle-to-grid communication interfaces. (Power Ministry of India)

Electrical & MEP (Power Infra)

  • Standard load list (demand factor & max demand)
  • Transformer sizing & specifications
  • Single-line diagrams (SLDs)
  • Equipment layout: transformer, PDB, DBs, EV chargers
  • Cable schedule and tray / trench design
  • Earthing layout & lightning protection
  • Lighting design with lux-level calculations
  • Compliance-ready specs for CEIG pre-bid review
  • BOQ with makes & pricing

SMART EVCS & DIGITAL INFRASTRUCTURE

Charging infrastructure is becoming an intelligent energy asset.

We design the physical infrastructure to accommodate digital and operational systems such as:

CMS | OCPP | Remote Monitoring | Energy Management | Load Management | Payment Systems | Networking | CCTV | Access Control | Data Infrastructure

Open communication protocols such as OCPP and OCPI are recognised within India’s EV charging infrastructure framework for interoperability and digital connectivity.

(Power Ministry of India)

Our design philosophy therefore considers digital infrastructure from day one, rather than attempting to retrofit it after construction.

How We Work

Site visit & digital survey
Layout planning (architecture + MEP)
Load analysis & equipment mapping
SLDs, specs, and BOQ drafting
Client review & CEIG submission
Execution coordination support

Projects We’ve Delivered

 

Truck corridor layout for Indian OEM — 300 km span

 

 Bus depot charging infra — Tier-1 logistics fleet

 

SE Asia deployment — EVSE infra rollout

 

EV-ready township basements — Premium RWA clients

 

Port electrification — Western India 4W fleet hub

WHY THE SUSTAINER?

EV-FIRST ENGINEERING

Our design approach is built around the specific operational requirements of electric mobility.

EV-FIRST ENGINEERING

Our design approach is built around the specific operational requirements of electric mobility.

EXECUTION UNDERSTANDING

We design with construction, commissioning and O&M realities in mind.

STANDARDISATION

We create repeatable design frameworks for multi-site and national rollouts.

TECHNOLOGY-AGNOSTIC

Design is developed around the required operational outcome rather than being restricted to one EVSE technology.

FUTURE-READY

Our infrastructure planning considers expansion, higher charging loads, renewable energy, BESS and smart energy management.

INTERNATIONAL DESIGN PHILOSOPHY

Indian engineering practicality combined with global design and documentation standards.

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