The Rise of C&I Battery Storage: How Indian Businesses Are Using BESS for Energy Resilience and Efficiency

The following article is attributed to Rahul Das, AVP – Business Development at Oorjan Cleantech

For commercial and industrial (C&I) consumers, electricity is more than an operating expense. It is a critical input that determines production continuity, service delivery, equipment performance and business competitiveness.

As businesses adopt renewable energy and look for greater control over electricity costs, Battery Energy Storage Systems (BESS) are gaining attention as a way to manage energy more strategically. Their role is expanding beyond backup power to include peak-demand management, renewable energy optimisation and operational resilience.

A market moving beyond conventional backup

India’s commercial and industrial energy storage market is at an early stage, but its growth outlook indicates increasing interest from businesses. According to the India Energy Storage Alliance, the C&I storage market could expand from less than 1 GWh in 2025 to 22–31 GWh by 2032, depending on the pace of adoption and supporting market developments.

This projected growth reflects several commercial priorities: rising electricity costs, demand for reliable power, wider renewable energy adoption and the need to improve energy efficiency.

Traditional backup arrangements, including diesel generators, remain relevant for many facilities. However, battery storage offers a different operating model. It can be charged in advance, dispatched according to demand and integrated with renewable energy systems and digital controls. Depending on the configuration, it may reduce generator runtime, support critical loads or shift electricity consumption away from expensive periods.

The choice between batteries, generators and other backup solutions will depend on the duration of the required backup, the criticality of the load, local operating conditions and total lifecycle cost.

Turning renewable energy into a more flexible resource

Commercial buildings, hospitals, hotels, warehouses, retail facilities and factories have different consumption patterns, but many face a common challenge: renewable generation does not always coincide with electricity demand.

Rooftop solar may produce surplus electricity during the afternoon, while cooling, lighting, production or other operational loads continue into the evening. A battery can store a portion of available electricity and release it when consumption rises or solar generation declines.

For businesses procuring renewable electricity through open access or other arrangements, storage may also offer opportunities to shift energy use, subject to contractual terms, grid rules and the economics of charging and discharging.

However, batteries do not automatically make every unit of renewable electricity cheaper. Conversion losses, battery degradation, financing costs and tariff structures all influence the final economics. A feasibility assessment must therefore compare the cost of stored electricity with the value of the electricity it replaces.

Resilience and business continuity

For certain commercial and industrial operations, the cost of a power interruption extends beyond the electricity that was unavailable. A hospital may need to protect critical equipment, a cold-storage facility may need to maintain temperature conditions, and a manufacturing plant may incur losses when production is interrupted and restarted.

A properly engineered BESS can help support selected loads during an outage, provided it includes the necessary backup configuration and sufficient usable capacity. The battery’s discharge duration must be matched to the loads that need protection.

Businesses should distinguish between short-duration ride-through, which can bridge brief interruptions, and extended backup, which requires significantly more stored energy. Battery storage should also be integrated with appropriate electrical protection, monitoring and operating procedures.

Why digital energy management matters

The value of storage depends on when and how it is used. An Energy Management System (EMS) can coordinate solar generation, battery charging, electricity consumption and grid imports to improve operational performance.

For example, a facility may charge its battery during periods of surplus solar generation, preserve a minimum reserve for critical operations and discharge during a predictable demand peak. The system can be adjusted as operating schedules or electricity tariffs change.

This makes storage part of a broader energy management strategy rather than a standalone equipment purchase.

Businesses evaluating BESS should consider their load profile, demand charges, outage history, solar generation, battery efficiency, degradation, maintenance requirements and expected project life. They should also assess fire safety, installation conditions, warranties and end-of-life management.

From energy procurement to energy strategy

The expansion of C&I storage signals a shift in how Indian businesses approach electricity. The objective is increasingly to balance cost, reliability, renewable energy use and operational flexibility rather than focus on any single metric.

Solar, BESS and intelligent energy management can work together to improve the utilisation of renewable power, manage demand peaks and support business continuity. The combination will not deliver identical benefits to every facility, but it creates a more flexible framework for managing energy.

As storage adoption expands, businesses that evaluate their electricity needs at an hourly level and invest according to measurable operational requirements will be better positioned to identify where batteries can create genuine commercial value.

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