Renewable energy is becoming a larger part of India's electricity mix, but generating clean power is only one part of the challenge. Solar generation changes with daylight and weather conditions, while wind generation varies with wind availability. Battery Energy Storage Systems (BESS) help address this variability by storing electricity when it is available and releasing it when it is needed.
For NECON, battery storage is not a standalone technology. It is part of an integrated renewable energy approach that combines solar, wind, battery storage, energy management, EPC, and long-term operations and maintenance to create more reliable clean-energy systems.
NECON, short for New Energy Consortium, focuses on developing integrated renewable energy solutions designed around India's energy requirements, geography, climate, and operating conditions. You can read more about the company's mission on Our Story.
What Is a Battery Energy Storage System (BESS)?
A Battery Energy Storage System (BESS) is an integrated system that stores electrical energy in rechargeable batteries and releases that energy when required.
In renewable energy projects, BESS can store surplus electricity generated during periods of high solar or wind production and discharge it when renewable generation decreases or electricity demand increases.
A complete BESS typically combines:
Battery modules
Battery Management System (BMS)
Power Conversion System (PCS)
Energy Management System (EMS)
Thermal management
Monitoring and safety systems
Together, these components allow stored electricity to be monitored, controlled, converted, and delivered according to project requirements.
Generate → Store → Monitor → Dispatch
This ability to shift electricity from one period to another makes BESS an important technology for integrating variable renewable generation.
How Does a Battery Energy Storage System Work?
The basic operation of a BESS can be understood in four stages.
Renewable Energy Generation: Solar panels and wind turbines generate electricity when the available renewable resource allows.
Energy Storage: When renewable generation exceeds immediate demand, the surplus electricity can be directed to the BESS for storage.
Monitoring and Energy Management: The BMS monitors battery operating conditions, while the EMS manages when energy should be stored or discharged based on system requirements.
Energy Discharge: When renewable generation falls, demand increases, or additional power is required, the stored electricity can be converted and supplied to the relevant load or grid connection.
The exact operating strategy depends on the project's generation profile, demand pattern, battery capacity, power rating, grid requirements, and control architecture.
Why Is BESS Important for Renewable Energy?
Solar and wind are renewable, but their generation is variable.
Solar power naturally decreases after sunset and can fluctuate because of cloud cover. Wind generation also changes according to wind speed and operating conditions.
BESS helps bridge these generation gaps by providing a mechanism to store electricity and use it later.
For renewable energy projects, this can support:
Renewable energy time shifting
More predictable power delivery
Peak demand management
Renewable energy integration
Grid support
Reduced dependence on conventional backup in suitable applications
Better utilization of renewable generation
BESS therefore helps move renewable energy systems from simply generating electricity toward managing when that electricity is available.
How BESS Supports NECON's Hybrid Power Parks
NECON's hybrid power park approach brings multiple renewable technologies together rather than relying on a single generation source.
Its model combines:
Battery Energy Storage Systems
Intelligent energy management
EPC capabilities
Operations and maintenance
NECON describes its hybrid power parks as integrated systems designed to provide clean power availability beyond the operating window of a single renewable technology.
The basic concept is straightforward:
Solar generates during daylight → wind can complement generation during different periods → BESS stores surplus energy → the control system manages generation, storage, and demand.
This integrated approach can create a more consistent renewable power profile than relying on a single generation technology.
NECON states that its hybrid model is designed around 24/7 clean power availability, higher energy yield and land utilization, and peak shaving and load management.
Why Battery Storage Matters for India's Renewable Energy Future
India's renewable energy expansion creates a growing need for technologies that can manage variability and match electricity generation with demand.
Adding more solar and wind capacity increases clean electricity generation, but it also makes energy storage and grid flexibility increasingly important.
BESS can help address this challenge by allowing electricity generated during one period to be used during another.
For Indian renewable energy projects, storage can support applications such as:
Solar-plus-storage projects
Wind-plus-storage projects
Hybrid renewable power parks
Industrial energy systems
Commercial facilities
Microgrids
Rural and distributed energy systems
Grid-support applications
NECON's own approach is built around designing renewable systems for India's diverse geography, climate, and energy requirements, with storage integrated alongside solar and wind technologies.
Key Components of a BESS
A modern Battery Energy Storage System is more than a collection of batteries. It is a coordinated electrical, mechanical, digital, and safety system.
Battery Modules
Battery modules are the primary energy-storage component.
They store electrical energy in electrochemical form and release it when required. The required battery capacity and configuration depend on factors such as the project's energy requirements, discharge duration, operating profile, and expected cycling.
Power Conversion System (PCS)
Batteries operate using direct current (DC), while many loads and electrical grids operate using alternating current (AC).
The Power Conversion System enables bidirectional energy conversion between the battery system and the AC electrical network.
During charging, the PCS converts electrical energy into the form required by the battery system.
During discharge, it converts stored DC energy into AC power for the connected system.
Battery Management System (BMS)
The Battery Management System monitors and manages battery operating conditions.
Depending on system architecture, the BMS can monitor parameters such as:
Voltage
Temperature
State of charge
Battery operating conditions
Cell and module performance
The BMS plays an important role in maintaining safe operating conditions and supporting battery performance over the system's operating life.
Energy Management System (EMS)
The Energy Management System acts as the higher-level control layer.
It can coordinate:
Renewable generation
Battery charging
Battery discharge
Load requirements
Grid conditions
Energy dispatch strategies
The EMS helps determine how available energy should be managed according to the project's operating objectives.
Thermal Management
Battery performance and safety are influenced by temperature.
Thermal-management systems help maintain battery operating conditions within the required range and manage heat generated during charging and discharging.
Monitoring and Safety Systems
BESS installations also require monitoring and protection systems designed to identify abnormal operating conditions and support safe system operation.
The exact safety architecture depends on battery chemistry, system design, installation environment, project scale, and applicable standards.
What Are the Benefits of Battery Energy Storage Systems?
BESS can provide multiple benefits depending on how the system is designed and operated.
1. Renewable Energy Time Shifting
Energy generated when renewable resources are strong can be stored and used later.
For example, surplus solar electricity generated during the afternoon can potentially be stored and dispatched during a later period of higher demand.
2. Peak Demand Management
Stored electricity can be used during periods of high demand, helping organizations manage their electricity consumption profile where the project's tariff and operating structure make this economically suitable.
3. Better Renewable Integration
BESS can help manage fluctuations in renewable generation and make renewable power easier to integrate into a broader electrical system.
4. Improved Energy Resilience
Depending on system configuration, BESS can provide backup or short-duration support for critical loads during grid interruptions.
The actual backup duration depends on factors including battery capacity, power demand, usable energy, and system configuration.
5. Grid Support
Large-scale BESS can support certain grid applications, including balancing and frequency-related services where permitted by the applicable grid and market framework.
6. Better Utilization of Renewable Generation
Instead of using renewable electricity only when it is generated, storage provides an additional option: store the energy and dispatch it when conditions or demand make it more valuable.
BESS Applications Across Renewable Energy and Industry
Battery Energy Storage Systems can serve different applications depending on system size, location, operating profile, and commercial objectives.
Utility-Scale Hybrid Power Parks
Large renewable projects can combine solar, wind, and BESS to create a more flexible generation portfolio.
NECON's hybrid power park model integrates these technologies with energy-management and project-delivery capabilities.
Industrial Facilities
Manufacturing facilities and other energy-intensive operations can use BESS for applications such as peak demand management, renewable energy utilization, and backup support for selected loads.
Commercial Facilities
Commercial buildings and campuses can combine renewable generation with battery storage to increase the usefulness of on-site renewable electricity.
Rural and Distributed Energy Systems
Where grid infrastructure is limited or unreliable, appropriately designed renewable-plus-storage systems can provide greater flexibility in how electricity is generated and consumed.
Grid Support
At larger scales, BESS can support grid flexibility and help manage the increasing share of variable renewable generation.
NECON's Integrated Approach to Battery Energy Storage
One of the key differences between a standalone battery installation and an integrated renewable energy project is how the storage system is designed around the overall energy system.
NECON's energy ecosystem brings together solar, wind, BESS, EPC, O&M, and digital infrastructure rather than treating storage as an isolated component.
This approach allows project planning to consider:
Renewable generation profiles
Energy demand
Storage requirements
Grid conditions
Power conversion
Energy management
Project construction
Long-term operations
Maintenance requirements
NECON's solar solutions are also designed to integrate with wind and battery systems as part of hybrid renewable energy deployments.
The result is a system-level approach in which generation, storage, control, and operations can be considered together from the project-design stage.
Digital Security and System Reliability
Modern energy infrastructure increasingly depends on digital monitoring and control.
BESS and hybrid power systems can involve metering, communication networks, monitoring platforms, control systems, and automated decision-making.
NECON highlights digital security and resilient system architecture as part of its broader energy infrastructure approach, including encrypted metering, anomaly detection, redundant and fault-tolerant digital layers, and cybersecurity measures.
These capabilities are important because reliable energy infrastructure requires protection of both the physical equipment and the digital systems that monitor and control it.
BESS, Solar and Wind: Why Integration Matters
A renewable energy system becomes more flexible when complementary technologies are designed to work together.
Solar
Solar generation is strongest during daylight hours and can produce significant surplus electricity when generation exceeds immediate demand.
Wind
Wind generation can complement solar generation depending on local wind conditions and project design.
NECON's renewable-energy portfolio includes Vertical Axis Wind Turbine technology designed for integration into hybrid renewable energy systems.
BESS
Battery storage provides a mechanism to store electricity and dispatch it later.
EMS
The Energy Management System coordinates generation, storage, and demand.
Together, these technologies create an integrated energy system rather than a collection of independent assets.
How NECON Supports the Renewable Energy Project Lifecycle
Battery storage delivers its greatest value when it is properly integrated into the overall project.
NECON provides capabilities across the renewable energy value chain, including:
Engineering, Procurement and Construction (EPC)
NECON provides end-to-end project delivery covering design, procurement, construction, testing, and commissioning.
Operations and Maintenance (O&M)
Long-term renewable assets require ongoing monitoring, preventive maintenance, operational management, and performance optimization.
Battery Energy Storage
NECON positions BESS as a core component of its integrated renewable energy ecosystem.
Renewable Energy Manufacturing and Innovation
NECON's wider group includes companies involved in renewable-energy manufacturing, supported by in-house R&D through its Innovation and Technologies initiatives, which underpin its wind, solar, and storage solutions.
This broader ecosystem can help connect technology development, project execution, manufacturing, and long-term asset management.
Why NECON's Make-in-India Approach Matters
NECON describes its mission as a Make-in-India, Make-for-India approach to clean energy, built on the belief that India deserves reliable, affordable power developed through Indian engineering, innovation, and manufacturing.
For battery storage and hybrid renewable energy infrastructure, local engineering and manufacturing capabilities can be important for:
Project customization
Supply-chain resilience
Local technical support
Deployment at scale
Long-term asset management
Development of India-specific energy solutions
Building More Flexible Renewable Energy Systems
The future of renewable energy is not simply about generating more electricity. It is about creating systems that can generate, store, manage, and deliver clean electricity when it is needed.
Battery Energy Storage Systems are an important part of this transition.
By combining BESS with solar, wind, energy-management systems, EPC capabilities, and long-term operations, hybrid renewable energy projects can become more flexible and better equipped to manage the variability of renewable generation.
NECON's integrated approach brings these technologies together to support the development of reliable, scalable clean-energy infrastructure for India.
Explore NECON's Hybrid Renewable Energy Solutions
If you are evaluating a Battery Energy Storage System, hybrid power park, solar-plus-storage project, or integrated renewable energy solution, NECON can help assess the generation, storage, project-delivery, and operational requirements of your application.
About NECON
NECON (New Energy Consortium) is an India-focused renewable energy company developing integrated solutions across solar, wind, hybrid power parks, battery energy storage, EPC, O&M, and other clean-energy technologies, built on a Make-in-India approach to Indian engineering, manufacturing, and innovation.
Frequently Asked Questions
What is a Battery Energy Storage System (BESS)?
A Battery Energy Storage System stores electrical energy in rechargeable batteries and releases it when required. In renewable energy projects, BESS can store surplus solar or wind generation and dispatch it later.
How does BESS work with solar power?
BESS can store surplus electricity generated by solar panels when generation exceeds immediate demand and discharge the stored energy later when solar output decreases or demand increases.
How does BESS support wind energy?
BESS can store electricity generated by wind turbines and release it when required, helping manage variations in wind generation and supporting a more flexible renewable energy system.
What are the main components of a BESS?
The main components generally include battery modules, a Battery Management System (BMS), Power Conversion System (PCS), Energy Management System (EMS), thermal-management equipment, monitoring systems, and safety infrastructure.
What is the difference between BESS and a backup battery?
A BESS is a complete energy-storage system that includes batteries, power conversion, monitoring, management, and safety systems. A backup battery may refer simply to a battery or battery bank used to provide emergency power.
Can BESS be used for industrial facilities?
Yes. BESS can support industrial applications such as renewable energy integration, peak demand management, energy shifting, and backup support, depending on the facility's electrical requirements and system configuration.
How long can a BESS supply electricity?
The duration depends on the battery's usable energy capacity, power rating, operating conditions, discharge requirements, and system design. There is no single duration that applies to every BESS installation.
How does NECON use BESS?
NECON integrates BESS with solar, wind, hybrid power parks, energy-management systems, EPC capabilities, and operations and maintenance as part of its broader renewable energy ecosystem.
