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Battery Energy
Storage Systems (BESS)

MAC Solar & Energy provides smart, safe and efficient Battery Energy Storage Systems (BESS) for homes, businesses and utility-scale solar projects across North India.

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Battery Energy Storage System Installation
94%
DC Round-Trip Efficiency
What Is BESS

What Is a Battery Energy
Storage System (BESS)?

A Battery Energy Storage System is an integrated solution that captures electrical energy — from solar panels, the grid or a generator — stores it in high-performance battery cells, and releases it on demand. BESS technology enables you to use solar power around the clock, protect your operations from grid outages, reduce peak demand charges and achieve genuine energy independence.

At MAC Solar & Energy, every BESS we supply and install combines advanced Lithium Iron Phosphate (LiFePO4) battery technology with intelligent power conversion electronics and a smart Battery Management System (BMS) — giving you maximum safety, reliability and return on investment.

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Why Us

Why Invest in a Battery Energy Storage System?

India's electricity landscape is evolving rapidly — but outages, peak tariffs and grid instability remain everyday challenges for homes, factories and commercial establishments across North India. A BESS directly addresses all of these pain points:

Eliminate Power Outage Disruption

A BESS provides seamless automatic switchover to stored energy the moment the grid fails — keeping your lights, machines and data running without interruption.

Maximise Solar Self-Consumption

Instead of exporting surplus solar energy to the grid at low rates, a BESS stores it for use during evenings and nights — dramatically increasing your return on solar investment.

Reduce Peak Demand Charges

For commercial and industrial consumers, peak demand tariffs can account for 30–40% of the electricity bill. A BESS discharges during high-tariff hours, reducing your billed demand and generating significant monthly savings.

Complete Energy Independence

Paired with a solar system, a BESS takes you fully off-grid — generating and storing your own power 24 hours a day, free from utility dependency and tariff fluctuations.

Smart Energy Management

Advanced battery management and monitoring systems optimise charging and discharging automatically, helping you maximise energy savings, improve efficiency and gain real-time visibility into your power usage.

Zero Emissions, Zero Noise

Unlike diesel generators, BESS systems operate silently with zero local emissions, zero fuel costs and zero maintenance of mechanical components — a cleaner, quieter and more cost-effective backup solution.

10+
Years Design Life
0
Charge Cycles
94%
DC Efficiency
<100ms
Switchover Time
Our BESS Range

Battery Storage Solutions for Every Need

From compact residential units to utility-scale containerised plants — explore the complete MAC Solar BESS range below.

Compact Residential Commercial Cabinet All-in-One Hybrid MWh Containerised Hybrid Eco Series
Compact Residential BESS
01
BESS Product 01

Compact Residential BESS

Smart energy storage for homes and small commercial setups — 5 kW / 5–10 kWh

The MAC Solar Compact Residential BESS is an all-in-one energy storage solution purpose-built for households and small commercial establishments. It integrates a high-performance LiFePO4 battery pack with a built-in hybrid inverter and an MPPT solar charge controller into a single wall-mounted unit — giving you solar storage, grid backup and solar charging capability in a space-saving, easy-to-install package.

This system is modular by design, allowing you to start with a 5 kW / 5 kWh configuration and expand the energy capacity in 5 kWh increments as your needs grow — without replacing the core unit.

Key Highlights

  • Ready to use straight out of the box — no complex wiring or configuration required
  • Integrated MPPT controller for direct DC solar charging, in addition to AC grid charging
  • Capable of full off-grid operation when paired with a solar panel array
  • Up to 4,000 charge-discharge cycles for a long, maintenance-free service life
  • Certified safe LiFePO4 chemistry — no risk of thermal runaway
  • Intelligent priority management across solar, grid and battery sources
  • High round-trip DC efficiency of up to 94%

Ideal For

  • Residential homes with rooftop solar systems (1 kW to 10 kW)
  • Small offices, clinics, shops and restaurants requiring reliable backup
  • Properties in areas with frequent grid outages
  • Customers seeking to maximise solar self-consumption and reduce electricity bills

Technical Specifications

System Type All-in-One Hybrid Inverter + LiFePO4 BESS
Rated Power 5 kW
Energy Capacity 5 kWh (expandable to 10 kWh)
Battery Chemistry Lithium Iron Phosphate (LiFePO4)
Design Cycle Life Up to 4,000 charge-discharge cycles
DC Efficiency Up to 94%
Solar Input (MPPT) Integrated MPPT charge controller
AC Input Grid / Diesel Generator / Any AC source
Operating Mode Grid-tied, Off-grid, Hybrid
Scalability Modular — add energy modules in 5 kWh steps
Safety Standard CE Certified; LiFePO4 inherently safe chemistry
Installation Wall-mounted; Plug-and-Play
Commercial Cabinet BESS
02
BESS Product 02

Commercial Cabinet BESS

Pre-engineered, plug-and-play energy storage for commercial and industrial sites

The MAC Solar Commercial Cabinet BESS is a fully integrated, factory-tested energy storage cabinet designed for commercial establishments, light industrial units and large residential complexes. Every subsystem — battery modules, power conversion system (PCS), coupling electronics, thermal management, safety devices and energy management software — is pre-engineered and assembled within a single floor-standing cabinet, eliminating the complexity and risk of on-site integration.

Delivered fully tested and pre-commissioned, this system significantly reduces installation time and brings enterprise-grade energy storage within reach of commercial and mid-scale industrial users.

Ready to Deploy

The entire system — batteries, power conversion, coupling transformer, safety switchgear, cooling and controls — arrives pre-assembled and factory-tested. On-site installation is a matter of connection, not integration.

Built for Longevity

Every component is carefully selected for performance under India's demanding operating conditions — high ambient temperatures, dust and voltage fluctuations. The system is engineered for a 10+ year design life with minimal maintenance.

Intelligent Digital Control

All critical power operations are governed by embedded energy management software, enabling real-time monitoring, automated load prioritisation, remote diagnostics and the fastest possible response time to grid events.

Zero Emissions Operation

A completely silent, emission-free alternative to diesel generators — with no fuel costs, no exhaust, no noise and no mechanical maintenance. Ideal for urban commercial sites with emissions or noise restrictions.

Technical Specifications

System Type Integrated Cabinet BESS with PCS
Battery Chemistry Lithium Iron Phosphate (LiFePO4)
Power Conversion Integrated PCS with bidirectional AC/DC conversion
Coupling Internal coupling transformer included
Cooling System Active thermal management system
Protection Over-charge, over-discharge, short circuit, temperature protection
Energy Management Embedded EMS with real-time monitoring
Installation Floor-mounted cabinet; factory pre-wired
Testing Fully factory-tested before dispatch
Design Life 10+ years under rated operating conditions
Grid Compatibility 230V / 400V AC; 50 Hz (India standard)
Applications Commercial, industrial, large residential
All-in-One Hybrid BESS
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BESS Product 03

All-in-One Hybrid BESS

Multi-mode solar + battery + grid integration for complete energy flexibility

The MAC Solar All-in-One Hybrid BESS is a versatile, multi-mode energy storage and power management system designed for medium to large commercial establishments, factories, office buildings, schools, shopping centres and island communities. It integrates a battery pack, a full-featured solar PV inverter, and bidirectional grid connection management into a single system — making it the ideal foundation for any renewable energy project requiring true flexibility.

The system's multi-mode switching capability allows seamless, intelligent transitions between solar power, grid supply and diesel generator input — giving operators complete control over their energy source at any time, with automatic failover for uninterrupted operations.

System Modes & Benefits

  • Solar Priority Mode — runs entirely on solar power; charges batteries and exports surplus to grid
  • Battery Priority Mode — deploys stored energy to manage peak demand and reduce tariff costs
  • Grid Backup Mode — draws from the grid when solar and battery are insufficient
  • Generator Integration — accepts input from a diesel or gas generator as a supplementary source
  • Full Backup Power — provides uninterrupted supply during grid outages with zero transfer delay
  • Peak Load Shifting — reduces demand charges by discharging during peak tariff windows
  • Demand Charge Reduction — intelligent load management to keep peak demand within contracted limits

Ideal Applications

  • Large residential complexes and farmhouses requiring 24/7 reliable power
  • Industrial units and manufacturing facilities with critical process requirements
  • Office buildings and commercial establishments with significant daytime solar potential
  • Retail and distribution centres with high-value refrigeration or climate control loads
  • Schools, libraries and community centres committed to clean energy independence
  • Remote or island communities seeking to reduce or eliminate diesel dependency
  • EV charging stations requiring both solar integration and grid backup capability

Technical Specifications

System Configuration DC-Coupled Hybrid BESS with integrated PV inverter
Battery Chemistry Lithium Iron Phosphate (LiFePO4)
Input Sources Solar PV / Grid AC / Diesel Generator
Operating Modes Solar-priority, Battery-priority, Grid-backup, Generator
Backup Type Full backup with seamless automatic switchover
Scalability Modular battery expansion available
Solar Compatibility DC-coupled solar input via integrated MPPT
Grid Compatibility 230V single-phase / 400V three-phase; 50 Hz
Energy Management Intelligent EMS with load prioritisation
Monitoring Remote monitoring via app / web portal
Design Life 10+ years
Certification CE, IEC compliant
MWh Containerised BESS
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BESS Product 04

MWh Containerised BESS

Utility-scale and large industrial energy storage — scalable from hundreds of kWh to multiple MWh

The MAC Solar MWh Containerised BESS is a large-scale, utility-grade energy storage solution designed for industrial plants, large commercial campuses, renewable energy developers, grid operators and infrastructure providers requiring significant storage capacity. Delivered in a ruggedised steel container, the system integrates battery modules, a high-power bidirectional PCS, a coupling transformer, comprehensive thermal management, fire suppression and an advanced energy management system (EMS) — all pre-assembled, factory-tested and ready for rapid on-site deployment.

The containerised format allows the system to be installed at virtually any location — rooftop, ground-mounted or indoors — without the need for a purpose-built battery room, significantly reducing civil construction costs and installation timelines.

Plug-and-Play Containerised Format

All system components — battery racks, PCS, transformer, cooling, fire suppression and control panel — are housed within an industry-standard steel container. Site installation requires only civil foundation, electrical connection and commissioning — no battery room construction needed.

Pre-Engineered for Reliability

Every component is selected for long-term performance under high-load and extreme temperature conditions. The system is designed to achieve a 15+ year operational lifespan with planned preventive maintenance.

Advanced Digital Energy Management

The embedded EMS handles real-time state-of-charge monitoring, charge-discharge scheduling, demand forecasting, remote diagnostics and integration with SCADA or plant management systems — enabling fully automated, optimised operation.

Zero-Emission, Zero-Noise Large-Scale Backup

Replaces diesel generator banks at large industrial sites, eliminating fuel procurement risk, generator maintenance costs, noise pollution and emissions compliance liabilities — while providing faster response times and higher reliability.

Technical Specifications

System Format Containerised BESS (standard or custom container)
Battery Chemistry Lithium Iron Phosphate (LiFePO4)
Capacity Range Hundreds of kWh to multiple MWh (scalable by container)
Power Conversion High-power bidirectional PCS
Transformer Integrated coupling transformer
Thermal Management Active liquid or air cooling system
Fire Safety Automatic fire detection and suppression system
Energy Management Advanced EMS with SCADA integration capability
Grid Interface 400V / 11kV / 33kV (as required); 3-phase 50 Hz
Response Time Sub-100ms full power response
Design Life 15+ years under rated conditions
Installation Ground-mounted or rooftop; minimal civil works
Monitoring Remote monitoring, alarms and reporting via web / SCADA
Hybrid Eco Series BESS
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BESS Product 05

Hybrid Eco Series BESS

Stackable, scalable 3-phase battery storage — 20 kWh to 200 kWh

The MAC Solar Hybrid Eco Series BESS is an advanced, scalable battery storage solution engineered for commercial and light industrial users who need reliable three-phase energy storage that can grow alongside their energy requirements. With a sleek, floor-mounted form factor and a parallel architecture that supports capacity expansion up to 200 kWh, the Hybrid Eco Series combines installation simplicity with enterprise-grade performance.

The system is tightly optimised to work in harmony with MAC Solar hybrid inverters, enabling intelligent real-time data exchange for precise charge-discharge management, system health monitoring and maximum overall efficiency.

Compact Stackable Design

The flat, low-profile floor-mounted form factor requires minimal floor space and eliminates complicated overhead cable routing. Multiple units can be neatly stacked and connected in parallel without complex rewiring.

Parallel Scalability to 200 kWh

Battery units are natively parallel-ready. Add capacity incrementally — from a starting point of 20 kWh — up to a total of 200 kWh — simply by connecting additional battery modules, without any system redesign.

High-Speed Charging

The Hybrid Eco Series supports rapid charge rates, ensuring batteries reach full capacity quickly during periods of peak solar generation or low-tariff grid charging windows — maximising available stored energy when you need it most.

Certified Safety with 10-Year Design Life

LiFePO4 cell chemistry provides inherent thermal and chemical stability — no risk of thermal runaway. The system is rated for a 10-year design life, backed by international safety certifications.

Deep Integration with MAC Solar Inverters

Continuous bidirectional data communication between the battery system and the hybrid inverter enables real-time performance tuning, predictive charge scheduling and comprehensive operational health verification.

Real-Time Smart Monitoring

Integrated smart monitoring system provides live insights into battery performance, energy consumption, and system health. Users can track and optimize usage through a connected dashboard for maximum efficiency and control.

Suitable For

  • Commercial offices and multi-tenant business parks on three-phase supply
  • Light industrial units and production facilities with 3-phase machinery
  • Large retail outlets, hotels and hospitality properties
  • Healthcare facilities requiring clean, uninterrupted three-phase power
  • Solar farms and hybrid renewable energy projects needing scalable storage

Technical Specifications

System Type Hybrid Eco Series — Scalable 3-Phase BESS
Battery Chemistry Lithium Iron Phosphate (LiFePO4)
Starting Capacity 20 kWh
Maximum Capacity 200 kWh (parallel expansion)
AC Voltage 400V AC, 3-Phase, 50 Hz
Form Factor Floor-mounted, low-profile stackable cabinet
Parallel Operation Native parallel-ready; units combinable up to 200 kWh
Charge Rate High-speed charging for rapid energy replenishment
Design Life 10 years under rated operating conditions
BMS Integrated smart BMS with cell balancing and protection
Inverter Integration Optimised for MAC Solar hybrid inverter systems
Monitoring Real-time data sync with inverter; remote monitoring
Certification CE certified; international safety standards compliant
The Technology

The Technology Behind
MAC Solar BESS

LiFePO4 — The Safest Battery Chemistry

Every BESS product in the MAC Solar range uses Lithium Iron Phosphate (LiFePO4) cells — widely regarded as the gold standard for stationary energy storage applications. LiFePO4 chemistry delivers an exceptional combination of safety, longevity and performance that other lithium chemistries cannot match:

  • Inherently stable chemistry — no thermal runaway risk under overcharge, short circuit or physical damage
  • 3,000 to 6,000+ charge-discharge cycles — equivalent to 10 to 15+ years of daily cycling
  • High energy density relative to lead-acid alternatives — significantly less space and weight per kWh
  • Flat discharge voltage curve — consistent power delivery from 100% to near-zero state of charge
  • Wide operating temperature range — functional in India's hot climate conditions
  • No toxic heavy metals — safer for installation in occupied buildings

Smart Battery Management System (BMS)

The BMS is the intelligent guardian of every MAC Solar BESS. Operating at the cell level, it continuously monitors and manages every parameter critical to safe, efficient and long-lived battery operation:

  • Cell-level voltage monitoring and active balancing to prevent capacity drift
  • Temperature monitoring with active thermal management and shutdown protection
  • State of Charge (SOC) and State of Health (SOH) tracking for accurate performance data
  • Overcharge and over-discharge protection to prevent cell degradation
  • Short circuit and ground fault detection with automated isolation
  • Communication with inverter and EMS for coordinated system-level management

Power Conversion System (PCS)

The PCS is the bidirectional interface between the battery storage system and the AC electrical network. It performs DC-to-AC conversion during battery discharge and AC-to-DC conversion during charging, with high efficiency and fast response times. Key PCS capabilities in MAC Solar BESS products include:

  • Sub-100ms response to grid events — faster than any diesel generator
  • High round-trip efficiency — minimising energy losses in each charge-discharge cycle
  • Seamless grid-forming capability for off-grid operation
  • Anti-islanding protection for on-grid installations
  • Harmonic distortion control for clean power output
Industries We Serve

BESS Applications Across Industries

MAC Solar & Energy supplies and installs BESS solutions across a broad range of sectors in North India. Here is how energy storage creates measurable value in each:

Solar Energy Projects

BESS transforms a solar system from a daytime-only power source into a round-the-clock energy asset. By storing midday solar surplus and deploying it during evenings and nights, a BESS dramatically increases solar self-consumption — from a typical 30–40% to 80–90% — maximising the financial return on every solar installation.

Telecom Towers

Telecom infrastructure demands 24/7 uninterrupted power in remote and often grid-unstable locations. A BESS paired with rooftop solar provides a reliable, low-maintenance power solution that eliminates diesel dependency, reduces operating costs and ensures service continuity through any grid event.

Manufacturing Plants

Production facilities face two major electricity cost challenges: high peak demand charges and outage-related production losses. A BESS addresses both — smoothing demand peaks to reduce tariff costs and providing instantaneous backup power to protect continuous manufacturing processes.

Data Centres

Data centres require uninterrupted, high-quality power with zero tolerance for outages or voltage fluctuations. A BESS provides a faster, cleaner and more reliable backup solution than traditional UPS-plus-generator configurations, while also enabling peak demand management and renewable energy integration.

EV Charging Infrastructure

High-power EV fast chargers draw large peak loads that can trigger expensive demand charges and strain local grid infrastructure. A BESS buffers these peaks — charging gradually from the grid or solar and discharging rapidly during EV charging events — enabling high-power EV charging at any location without grid upgrades.

Hospitals & Healthcare

Critical healthcare facilities cannot afford power disruptions. A BESS provides instantaneous, clean and reliable backup power for life-critical equipment, operating theatres and ICUs — with faster response and greater reliability than diesel generator sets.

Why MAC Solar

Why Choose MAC Solar & Energy for Your BESS Project?

End-to-End Project Ownership

MAC Solar & Energy manages your entire BESS project — from initial energy assessment and system design through procurement, installation, grid integration, commissioning and ongoing maintenance. You deal with a single accountable partner for your entire energy storage journey.

Certified LiFePO4 Technology Only

We do not compromise on battery chemistry. Every MAC Solar BESS uses certified LiFePO4 cells — not lower-cost NMC or lead-acid alternatives. This commitment to the right chemistry ensures maximum safety, the longest possible service life and the best long-term value for your investment.

Systems Engineered for Indian Conditions

Our BESS solutions are configured for India's specific grid parameters (230V / 400V, 50 Hz), operating temperature extremes, dust conditions and local installation standards — ensuring trouble-free performance year after year in North India's demanding environment.

Smart BMS Integration

Every system we install includes an intelligent BMS that actively protects your battery investment — balancing cells, preventing damage from overcharge or deep discharge, and providing continuous health monitoring so you always know exactly how your system is performing.

10-Year Design Life

Our BESS products are built to last. With a minimum 10-year design life under rated operating conditions, your investment delivers reliable returns long into the future — backed by our comprehensive warranty and maintenance support.

Compliance with International Standards

All MAC Solar BESS products are CE certified and comply with relevant IEC and IS standards for battery energy storage systems, power conversion equipment and grid interconnection — ensuring safety, insurability and regulatory compliance for every installation.

Compare BESS Products

Choose the Right MAC Solar BESS for Your Needs

Use this guide to identify the most suitable product for your application and scale:

Feature Compact Residential Commercial Cabinet All-in-One Hybrid Hybrid Eco / MWh
Best For Home / Small office Commercial sites Factories / Offices Large commercial / Industrial
Capacity Range 5–10 kWh Custom (kWh) Custom (kWh) 20 kWh – multiple MWh
Battery Chemistry LiFePO4 LiFePO4 LiFePO4 LiFePO4
Solar Integration Built-in MPPT External inverter DC-coupled MPPT Inverter-integrated
Grid Connection Single-phase Single / 3-phase Single / 3-phase 3-phase / HV
Off-Grid Capable Yes Yes Yes Yes
Scalable Yes (5 kWh steps) Yes Yes Yes (up to 200 kWh+)
Design Life 10+ years 10+ years 10+ years 10–15+ years
FAQs

BESS — Frequently Asked Questions

Have a question that isn't answered here? Get in touch with our team for a free consultation.

Talk to Our Team

MAC Solar BESS products using LiFePO4 chemistry are rated for 3,000 to 6,000+ charge-discharge cycles — equivalent to 10 to 15+ years of daily use under standard operating conditions. Actual longevity depends on cycle depth and ambient temperature.

Yes. A BESS can charge directly from the grid during low-tariff periods and discharge during peak-tariff hours or outages — delivering bill savings and backup capability without any solar installation. However, the combination of solar + BESS delivers the maximum financial and energy independence benefit.

MAC Solar BESS systems switch to battery power in under 100 milliseconds — far faster than any diesel generator. In most cases, sensitive electronic equipment does not even register the transition.

Yes. LiFePO4-based BESS systems are specifically engineered for indoor installation. Unlike NMC lithium batteries, LiFePO4 chemistry presents no risk of thermal runaway, and our systems are equipped with comprehensive fire detection, temperature monitoring and automatic shutdown protection.

A traditional inverter with lead-acid batteries offers basic backup power with a limited cycle life (typically 300 to 500 cycles) and slow response times. A modern BESS uses high-cycle LiFePO4 cells with an intelligent BMS, a high-efficiency PCS, embedded energy management software and real-time monitoring — delivering far superior performance, longevity, efficiency and control.

MAC Solar LiFePO4 BESS systems are essentially maintenance-free under normal operating conditions. We recommend an annual inspection and performance check as part of our AMC (Annual Maintenance Contract) — covering electrical connections, BMS calibration, firmware updates and physical condition assessment.

Yes. All MAC Solar BESS products are designed with scalability in mind. The Compact Residential BESS can be expanded in 5 kWh steps, and the Hybrid Eco Series supports parallel expansion up to 200 kWh. For larger systems, additional battery racks or containers can be integrated as energy requirements grow.
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