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Engineering Consultancy

Electrical Design for Buildings & Factories

Precision-engineered electrical layouts and system designs that ensure safety, regulatory compliance, and operational efficiency from day one — for industrial, commercial, and infrastructure projects.

All Services
50+
Design Projects
100%
Code Compliant
2
Tamil Nadu Offices

What Is Electrical Design Consultancy?


Electrical design is the foundation on which every safe, efficient, and scalable electrical installation is built. At Enervia Engineering Services, we provide end-to-end electrical design consultancy for new constructions, retrofits, and capacity expansions across industrial plants, commercial buildings, warehouses, hospitals, and infrastructure facilities.

Our design process is rooted in a thorough understanding of your load requirements, operational priorities, and statutory obligations under the Central Electricity Authority (CEA) regulations and IS standards. We produce detailed, construction-ready drawings and documentation that allow your project to move from approval to commissioning without costly rework or compliance delays.

Whether you are an architect coordinating MEP services, a facility owner planning a greenfield factory, or an electrical contractor seeking technical design support, Enervia delivers precise, practically executable designs tailored to your project's budget and timeline.

What We Cover

A comprehensive scope of electrical engineering design deliverables for every project type and scale.

Single Line Diagram (SLD)

Detailed HT/LT SLD showing power distribution from the incoming supply point to all distribution boards and sub-panels, including protection and metering details.

Layout & Wiring Drawings

Floor-plan-based electrical layout drawings covering lighting, power sockets, earthing terminals, conduit routing, and cable tray/trunking paths.

Load Schedule & Calculations

Panel-wise and feeder-wise load schedules, demand factor analysis, and connected/maximum demand calculations to right-size equipment and avoid overloads.

Equipment Selection & Sizing

Technical specification and sizing of transformers, switchgear, capacitor banks, UPS, DG sets, MCBs, MCCBs, and ACBs based on load analysis and fault level studies.

Protection & Earthing Design

Comprehensive earthing and lightning protection design to IS 3043 and IEC standards, including fault current analysis and protection relay coordination.

EB / TANGEDCO Approval Drawings

Preparation of drawings and documentation in the specific format required for TANGEDCO or EB service connection and load sanction approval processes.

Key Benefits of Professional Design

Eliminate Costly Rework

A correctly engineered design prevents expensive site-level changes during construction and commissioning — saving time and budget.

Statutory Compliance Assured

All designs are prepared in full accordance with IS standards, CEA regulations, and local electricity board requirements for legal and safe operation.

Optimised Energy Efficiency

Right-sized equipment, optimised cable sizing, and power factor correction provisions reduce energy losses and long-term operating costs.

Future-Ready Systems

Designs account for planned expansions, additional machinery, and evolving load requirements — giving your facility the flexibility to grow.

Faster EB & Permit Approvals

Professionally prepared drawings and documentation significantly reduce objections and revision cycles during statutory approval processes.

Our Design Process

1
Site & Requirement Study
We conduct a detailed discussion to understand your facility type, machinery load, occupancy, and operational needs.
2
Load Analysis & Planning
Comprehensive load schedule preparation, demand factor calculations, and system architecture planning.
3
Design & Drawing
SLD, layout drawings, and equipment specifications prepared using industry-standard tools and IS norms.
4
Review & Client Approval
All drawings and documents shared for your review. Revisions incorporated based on your feedback before finalisation.
5
Handover & Support
Final drawing set, BOQ, and documentation handed over. Post-submission support available for EB approvals and contractor queries.

Who Needs This Service?

Our electrical design services are suited for a wide range of project owners and stakeholders.

Industrial Project Owners

Factory and plant owners setting up new manufacturing units, expanding production capacity, or relocating facilities across Tamil Nadu.

Commercial Builders & Developers

Real estate developers and builders constructing commercial complexes, malls, office blocks, and mixed-use developments.

Electrical Contractors

Licensed contractors needing engineering drawings and calculations to support project execution and statutory submissions.

Facility & Maintenance Teams

Facility managers handling upgrades, additions, or refurbishments who require as-built documentation and updated design support.

Project Deliverables

Single Line Diagram (SLD)

Complete HT/LT distribution diagram in PDF and AutoCAD-compatible format.

Electrical Layout Drawings

Floor-plan-based layout for all levels — lighting, power, earthing, and cable routing.

Load Schedule & BOQ

Panel-wise load schedules and a detailed bill of materials to support procurement and costing.

Equipment Specification Sheets

Technical datasheets and sizing justification for all major electrical equipment proposed.

EB Approval Drawing Set

Drawings formatted specifically for TANGEDCO / EB submission, stamped and signed by a licensed electrical engineer.

Design Calculation Report

Documented fault level, short circuit, and protection coordination calculations for technical reference.

Let's Design Your Electrical System
the Right Way

Share your project details with our team. We will review your requirements and respond within 24 hours with a tailored proposal.

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