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Ultrathon Electric
Utility-Scale BESS & Solar Infrastructure

Engineering a Cleaner, More Resilient Tomorrow

Turnkey engineering, project management consultancy (PMC), and full-lifecycle EPC execution for grid-scale Battery Energy Storage Systems, utility-scale solar generation, and high-voltage electrical infrastructure.

Engineering a Cleaner, More Resilient Tomorrow

Engineering a Cleaner, More Resilient Tomorrow

Engineering a Cleaner, More Resilient Tomorrow

Request an RFP Explore Our Capabilities

Core Engineering Scope

Grid-scale BESS architectures
Utility-scale solar generation
High-voltage electrical infrastructure
Full-lifecycle EPC execution
Project Management Consultancy (PMC)
Established Active
2017
Founded in Delhi NCR with dedicated focus on energy infrastructure.
Core Verticals Specialized
02 Disciplines
BESS PMC & EPC and Utility Scale Solar / High-Voltage Switchyard EPC.
Grid Voltage Scope Utility Standard
33–400 kV
Switchyards, pooling substations & transmission lines.
Standards Compliance Certified Process
100 %
Strict CEA, IEC, IEEE, and CEIG grid code compliance on every project.
Pillar 01

Battery Energy Storage Systems (BESS) PMC & EPC

End-to-end techno-commercial advisory and turnkey execution for grid-scale, renewable-plus-storage, and industrial storage installations.

View BESS Scope
Consultancy & Advisory

BESS Project Management Consultancy (PMC)

Independent Owner's Engineer and PMC representation protecting client capital across the entire project lifecycle — from feasibility and cell chemistry selection to factory acceptance and grid connection.

  • System Sizing & Chemistry Evaluation: Techno-economic modeling for LFP, NMC, Sodium-Ion, and Flow batteries based on duty cycles.
  • Tender & RFP Engineering: Detailed technical specifications, employer requirements, and vendor evaluation matrices.
  • FAT / SAT Factory Witnessing: Rigorous cell, pack, and container-level testing prior to site dispatch.
  • Interconnection & Compliance Audit: CEA grid connectivity regulations, CEIG safety, and IEEE 1547/2800 standards.
Best suited for: IPPs, Utilities, DISCOMs, and C&I Portfolio Owners. Dedicated BESS PMC Scope →
Turnkey Execution

BESS Turnkey EPC Delivery

Complete single-point engineering, procurement, and construction of grid-connected containerized battery storage systems with precision balance of system (BoS) integration.

  • Containerized Enclosure Integration: IP55/NEMA 4X enclosures with active HVAC or liquid-cooled thermal loops.
  • Power Conversion Systems (PCS): Bi-directional 4-quadrant inverters with grid-forming (GFM) and grid-following (GFL) capabilities.
  • BMS & EMS Automation: Multi-tier cell-to-system monitoring, State of Health (SoH) tracking, and sub-second dispatch control.
  • Fire Safety & NFPA 855 Compliance: Deflagration venting, gas detection, aerosol/water-deluge suppression (UL 9540A).
Best suited for: Grid stabilization, RTC renewable integration, peak shaving, and transmission deferral. Dedicated BESS EPC Scope →
Pillar 02

Utility Scale EPC, Substations & Transmission

Turnkey power infrastructure engineering delivering ground-mount solar plants, high-voltage pooling substations, and evacuation transmission corridors.

View Utility Scale Scope
Generation Assets

Ground-Mount Solar PV Plants

Utility-scale ground-mount solar engineering from geotechnical surveys and piling to string inverter DC/AC design and tracker optimization.

  • Fixed-Tilt & Single-Axis Trackers
  • Bifacial PV Array Architecture
  • SCADA & Weather Monitoring Stations
Interconnect Switchyard

Pooling Substations (up to 400kV)

High-voltage pooling substations (AIS and GIS) stepping up generator outputs to 33kV, 66kV, 132kV, 220kV, and 400kV evacuation grids.

  • Power Transformer Procurement & Bay Layout
  • IEC 61850 Numerical Relay Automation
  • Switchyard Civil & Control Room Buildings
Grid Evacuation

Transmission Lines & CEIG Clearance

Turnkey high-voltage transmission lines connecting pooling substations to regional utility substations with full statutory approvals.

  • Route Survey, DGPS Profiling & Soil Testing
  • Tower Erection, Stringing & OPGW Link
  • CEIG Inspection & Statutory Charging
Specialized Track 01

C&I Solar EPC →

Turnkey rooftop & ground-mount captive solar for industrial facilities, zero-export DG synchronization & open-access models.
Specialized Track 02

Solar + BESS Hybrids →

AC-coupled and DC-coupled hybrid architectures for peak shaving, energy time-shifting, and renewable ramp-rate control.
Specialized Track 03

EPC Engineering Support →

Electrical, civil, ETAP power system studies, and substation design reviews supporting fellow EPC contractors.
Infrastructure Framework

Standardized Delivery Archetypes

Standardized engineering taxonomies designed for rapid commissioning, optimal efficiency, and utility compliance across Indian grid topologies.

View Project Portfolio
Application 01

Grid-Scale Standalone BESS

High-voltage grid-connected storage for peak shaving, ancillary frequency regulation, and transmission deferral.

Duration: 1 to 4 Hours
Coupling: AC-Coupled at MV/HV
Compliance: CEA / IEC 62933
Explore BESS Scope →
Application 02

Solar + BESS Hybrid Plants

Co-located renewable generation and storage for Round-the-Clock (RTC) supply and curtailment mitigation.

Topology: DC / AC Integrated
Control: Hybrid PPC Control
Dispatch: Scheduled RTC
Explore Hybrid BESS →
Application 03

High-Voltage Pooling Substations

Dedicated evacuation switchyards stepping up generation voltages for transmission network injection.

Voltage: 33kV to 400kV
Type: AIS / GIS Pooling
Approval: CEIG Mandate
Explore Substation EPC →
Application 04

C&I Behind-The-Meter Storage

Industrial energy resilience, peak tariff mitigation (ToD arbitrage), and diesel generator displacement.

Connection: 11kV / 33kV Infeed
Safety: NFPA 855 / UL 9540A
Integration: Factory SCADA
Assess C&I Sizing →
Detailed engineering designs, SLDs, and proprietary client capacity data are furnished under bilateral NDA during formal tender/RFP processes. Request Project Credentials →
Technical Intelligence

Engineering Insights & Regulatory Analysis

Authoritative briefings on CEA grid connectivity, thermal safety standards, and energy storage engineering from Ultrathon's practice group.

All Technical Whitepapers
Bess Technology 8 min read

BESS Cost per MWh: 2026 Global & India CAPEX Breakdown

A comprehensive techno-economic breakdown of utility-scale BESS cost per MWh in 2026, comparing cell pack pricing, PCS inverters, liquid cooling, Balance of Plant (BoP), LCOS calculations, and 15-year augmentation economics across global and Indian markets.

Ultrathon Engineering Practice Directorate Read →
Regulatory Frameworks 7 min read

Step-by-Step CEIG Approval Process for Megawatt BESS & Substations

A definitive practitioner’s engineering guide to securing Chief Electrical Inspector to Government (CEIG) statutory clearances, safety compliance, and official charging permissions for utility-scale BESS and pooling switchyards in India.

Ultrathon Regulatory & Compliance Directorate Read →
Regulatory Framework

Strict Regulatory & Grid Code Compliance

Power infrastructure requires uncompromising adherence to statutory grid connection norms, safety standards, and performance specifications.

CEA Mandate

Technical Standards for Connectivity

Strict compliance with CEA Connectivity Regulations for renewable generation and energy storage including fault-ride-through (FRT), active/reactive power control, and harmonic limits.

IEC 62933-5-2

BESS Safety & Environmental Systems

Design requirements covering electrical safety, thermal propagation containment, environmental impact, and failure hazard mitigation for energy storage systems.

IEEE 1547 / 2800

Inverter-Based Resource Interconnect

Interconnection standards ensuring frequency response, anti-islanding protection, and transient performance for inverter-based resources at utility scale.

CEIG Statutory

Statutory Approval & Charging Clearance

Complete drawing approvals, site inspection filings, safety clearance certificates, and official charging permissions through state and central electrical inspectorates.

NFPA 855 / UL 9540A

Thermal Runaway & Deflagration Safety

System safety engineering preventing fire propagation across battery cells and racks: explosion venting, off-gas detection, and aerosol deluge systems.

IEC 61850 / 60870-5

SCADA & Grid Telemetry Integration

Substation automation protocols linking generation and storage systems directly to State Load Despatch Centres (SLDC) and Regional Load Despatch Centres (RLDC).

Why Ultrathon Electric

Engineering Precision. Accountable Execution.

Built on technical rigor, regulatory discipline, and full-lifecycle engineering accountability.

01

Established in 2017

Founded with a steadfast commitment to India's electric power and energy transition infrastructure, building durable institutional engineering expertise.

02

Specialist Domain Focus

We concentrate engineering resources exclusively on BESS PMC & EPC and Utility Scale infrastructure — no diluted generalist contracting.

03

Multidisciplinary Engineering

Capabilities span electrical power systems, high-voltage substations, civil foundations, structural engineering, and SCADA/telemetry integration.

04

Turnkey Execution Accountability

Single-point ownership from initial sizing and equipment procurement to CEIG statutory approvals and final grid synchronization.

05

Vendor-Neutral Optimization

For PMC engagements, we evaluate Tier-1 batteries, inverters, and switchgear objectively based on duty cycle, warranty, and LCOE/LCOS metrics.

06

Strategic NCR Headquarters

Centrally coordinated out of IMT Manesar, Gurgaon enabling rapid mobilization and seamless interface with central regulators and utilities.

Project Consultation & RFP

Ready to Discuss Your Energy Storage or Utility Scale EPC Project?

Connect with our senior engineering leadership at IMT Manesar, Delhi NCR for detailed technical sizing, PMC scope evaluation, or turnkey EPC bidding.

HQ: IMT Manesar, Gurgaon • 0124-4273124 • sales@ultrathonelectric.com
Initiate RFP / Consult Call 0124-4273124