+919071331036
contact@truvenenergy.com
+919071331036
contact@truvenenergy.com
Store More. Spend Less. Stay Powered. Always.
India’s commercial and industrial power landscape is evolving rapidly—often to the disadvantage of businesses. Power quality can be inconsistent, diesel backup is becoming harder to justify on both cost and environmental grounds, and expectations around sustainability and decarbonisation are rising sharply.
Solar + BESS offers a powerful, integrated solution to these challenges. By combining solar generation with intelligent energy storage, businesses can reduce reliance on the grid, manage energy costs more effectively, and ensure greater operational resilience.
More than just storing excess solar energy, a Solar + BESS system gives businesses control—over when they draw power, how much they pay, how they respond to outages, and how clean their energy footprint becomes.
At Truven Energy Private Limited, we deliver end-to-end Solar + BESS solutions—from design and engineering to installation and operation—serving both commercial and industrial clients, from small-scale systems to large multi-MWh deployments, with a strong focus on performance, transparency, and client value.
Key Components of a BESS System
A Battery Energy Storage System (BESS) is an integrated solution combining battery cells, control systems, and power electronics to store electricity and deliver it when needed. It enables businesses to actively manage when and how they use energy, improving reliability, flexibility, and overall efficiency of power consumption.
In commercial and industrial settings, BESS is most effective when paired with solar power. A Solar + BESS system captures excess solar energy during the day, stores it efficiently, and deploys it strategically—reducing dependence on the grid, lowering peak demand charges, ensuring backup during outages, and maximising both cost savings and sustainability outcomes.
Battery Cells and Modules: The system’s core. Lithium Iron Phosphate (LFP) is preferred for its safety, long life (4,000–6,000+ cycles), high usable capacity, strong temperature performance, and cost efficiency—making it the leading choice for C&I BESS.
Battery Management System (BMS): The intelligence layer that monitors and controls each battery cell—optimising charge and discharge, balancing voltages, managing temperature, detecting faults, and protecting against overcharge, deep discharge, short circuits, and thermal risks.
Power Conversion System (PCS):A bidirectional inverter that converts stored DC power to AC for use, and AC from solar or grid into DC for storage. It also manages the interface between the battery, solar system, and grid—controlling power flow, magnitude, and timing based on EMS strategy.
Energy Management System (EMS): The brain of the Solar + BESS system. The EMS continuously monitors solar generation, battery state, load demand, and grid signals—optimising when to charge and discharge. It minimises energy costs, maximises solar use, ensures backup for critical loads, and ultimately drives the system’s financial value.
AC or DC Coupling Architecture: Solar + BESS systems can be configured as either AC- or DC-coupled. In DC-coupled setups, solar and battery share a common DC bus with a single hybrid inverter. In AC-coupled systems, solar and battery inverters operate independently on the AC side
Every successful Solar + BESS project starts with a deep understanding of how your facility actually consumes energy—not just a quick review of utility bills. At Truven Energy, we carry out a detailed energy audit and load profile analysis before designing any system, because the optimal solution depends entirely on when, how, and how much energy you use.
Consumption Data Analysis: We analyse 12+ months of interval data—or install temporary loggers if needed—to map hourly and seasonal consumption patterns. This reveals peaks, base loads, and variations critical for battery sizing and EMS strategy.
Tariff Structure Analysis: We break down your tariff—energy charges, demand charges, Time-of-Day pricing, and penalties—to quantify where BESS delivers the most financial value.
Load Criticality Assessment: We classify loads into essential, deferrable, and non-critical, ensuring backup design and dispatch strategy align with operational priorities.
Solar Resource Assessment: We evaluate available space, orientation, shading, and irradiation to determine the optimal solar capacity and generation profile.
Financial Baseline: We establish your current energy cost structure in detail, creating a clear baseline to measure and validate projected savings.
Designing a Solar + BESS system is a complex optimisation exercise—not a standard product choice. It involves balancing solar capacity, battery size, inverter ratings, system architecture, and EMS strategy to maximise financial and operational value for each client’s specific energy profile and tariff structure.
At Truven Energy, we apply rigorous engineering analysis and advanced simulation tools to ensure every system is precisely sized, correctly configured, and aligned with real-world operating conditions and business objectives.
Solar Array Sizing and Layout: We design the PV system—selecting modules, defining capacity, and modelling generation—so it works in sync with battery storage and load patterns.
Battery Sizing: We determine optimal kWh and kW ratings based on use cases like peak shaving, ToD arbitrage, solar utilisation, and backup needs—using simulations to maximise returns.
Coupling Architecture Selection: We evaluate AC vs DC coupling based on system size, existing infrastructure, and cost-performance trade-offs.
EMS Strategy Design: We program how and when the battery charges and discharges—ensuring it prioritises cost savings, reliability, and solar optimisation under varying conditions.
System Architecture & SLD: We define the complete electrical design, including components, interconnections, protections, and grid interface.
Financial Modelling: We build transparent, conservative models projecting savings, payback, IRR, and sensitivities—giving clients a clear, reliable basis for decision-making.
Truven Energy procures Solar + BESS equipment with complete independence from manufacturer commercial relationships — evaluating all leading global and domestic suppliers against rigorous technical criteria and sharing our evaluation process openly with clients.
Battery System Procurement: We evaluate and procure battery systems from leading LFP manufacturers — assessing cell quality and grade, BMS capability and sophistication, thermal management system design, cycle life performance data, depth of discharge capability, warranty terms and battery performance guarantee, manufacturing quality certifications, and after-sales support infrastructure. We specify only Grade A lithium iron phosphate cells — the highest quality classification — for every commercial and industrial BESS project.
Hybrid Inverter and PCS Procurement: We evaluate and procure power conversion systems from leading global manufacturers — assessing conversion efficiency, grid compliance capability, response time, reliability track record, protection features, monitoring and communication capabilities, and compatibility with the selected battery system.
Solar Module and Balance-of-Plant Procurement: We procure solar modules and all balance-of-plant equipment — including mounting structures, DC and AC cabling, protection devices, metering equipment, and monitoring hardware — in accordance with detailed technical specifications and through our open-book procurement process.
Open-Book Transparency: Every procurement decision is shared with clients in full — including vendor comparisons, quotations, negotiated pricing, and selection rationale. There are no hidden margins, no undisclosed supplier arrangements, and no unexplained cost items. You know exactly what is being purchased, from whom, at what cost, and why.
Battery Room or Enclosure Preparation: We design and construct or prepare the dedicated space for battery system installation — whether an indoor battery room within an existing building, a purpose-built battery housing structure, or an outdoor containerised installation. Battery room design incorporates the ventilation, thermal management, fire detection and suppression, electrical safety, and structural requirements specific to LFP battery installations in commercial and industrial environments.
Structural Assessment and Reinforcement: For rooftop solar installations, we conduct structural assessments of the building roof and, where required, design and execute structural reinforcement works to ensure safe support of the solar array and any rooftop battery or inverter equipment.
Civil Infrastructure: We execute all civil works required for the complete Solar + BESS installation — including foundations and housekeeping plinths for battery and inverter equipment, cable trench excavation, backfilling, and reinstatement, drainage provisions, and any building modification works required for equipment installation and cable routing.
Solar Array Installation: We install the complete solar photovoltaic array — including module installation and string wiring, mounting structure erection, DC combiner installation, and DC cable routing — in accordance with design drawings and manufacturer installation requirements, with continuous quality supervision by our site engineers.
Battery System Installation: We manage the mechanical and electrical installation of the battery system — including equipment positioning, structural fixing, inter-module cabling, BMS wiring, thermal management system connection, and safety system integration — in close coordination with the battery manufacturer’s installation team where required.
Power Conversion System: Installation We install the hybrid inverter or PCS — including mechanical fixing, DC connection to both the solar array and the battery, AC connection to the facility distribution board, and earthing and bonding — in accordance with the system Single Line Diagram and applicable electrical standards.
EMS and Monitoring System Installation: We install and commission the Energy Management System and remote monitoring platform — including all communication hardware, data logging equipment, sensor installation, software configuration, and integration with the client’s existing building management system where applicable.
Grid Interface and Protection: We install and commission all grid interface equipment — including bidirectional metering, net metering infrastructure, protection relays, and anti-islanding systems — in accordance with the relevant DISCOM requirements and applicable Indian electrical standards.
System Integration and Testing: We conduct comprehensive integrated system testing — verifying correct operation of all system components, all EMS control logic functions, all protection systems, and the complete power flow management capability of the integrated Solar + BESS system before commercial operation commences.
Pre-Commissioning Checks: We conduct a comprehensive pre-commissioning inspection and test programme — covering all electrical circuits, all protection systems, all BMS functions, all EMS control logic, and all communication and monitoring systems — before any system is energised.
System Commissioning: We commission the complete Solar + BESS system in a controlled, systematic sequence — beginning with solar array energisation and inverter commissioning, followed by battery system commissioning, followed by full system integrated commissioning with the EMS dispatch strategy active.
Performance Verification: We conduct formal performance tests on the commissioned system — measuring solar generation output, battery charge and discharge performance, EMS dispatch accuracy, demand shaving effectiveness, and backup power switchover time — and compare results against the contractual performance guarantees.
Client Training: We conduct comprehensive training for the client’s operational team — covering system monitoring, EMS interface operation, routine inspection requirements, fault identification and escalation procedures, and safety protocols for battery system management.
Handover: We provide the client with a complete handover package — including all as-built drawings, equipment manuals, BMS and EMS operating guides, warranty certificates, commissioning test records, and O&M documentation.
Truven Energy provides comprehensive long-term O&M services for Solar + BESS installations — ensuring that your system continues to operate safely, efficiently, and at maximum financial performance throughout its operational life.
Remote Performance Monitoring: 24/7 remote monitoring of solar generation, battery state of charge, system power flows, EMS dispatch performance, and equipment health — with automated fault detection, alarm notification, and performance benchmarking against design expectations.
Preventive Maintenance: Scheduled preventive maintenance programme covering solar module cleaning and inspection, inverter maintenance, battery system inspection including cell voltage and temperature monitoring, BMS software updates, earthing system testing, and all electrical connection inspections and thermographic surveys.
Corrective Maintenance: Rapid response to faults and failures — with experienced field technicians, a managed spare parts inventory, and clear escalation procedures ensuring minimal downtime and rapid restoration of full system performance.
EMS Optimisation: Ongoing review and optimisation of the EMS dispatch strategy — updating ToD tariff parameters, adjusting demand shaving setpoints, and refining the dispatch logic to reflect changes in the client’s load profile, tariff structure, or operational priorities.
Transparent Performance Reporting: Monthly and quarterly performance reports — covering solar generation, battery utilisation, self-consumption rate, grid import data, demand peak performance, estimated cost savings, and system availability — giving clients complete, honest visibility of their system’s financial and operational performance.
Maximum lifetime financial returns: As the asset owner, you capture the full financial benefit of every unit of solar energy generated and every rupee of grid electricity cost avoided — with no energy tariff payments to a third-party system owner reducing your net savings.
Accelerated depreciation: Solar + BESS systems qualify for accelerated depreciation under Indian income tax provisions — providing a significant tax benefit in the early years of operation and materially improving the after-tax return on investment.
Complete ownership and control: The system is yours. You make every operational decision. There are no contractual obligations to a third-party owner, no lock-in periods, and no PPA tariff escalation clauses.
Compelling payback periods: For well-designed Solar + BESS systems in high-tariff commercial and industrial contexts — particularly where Time-of-Day tariffs, demand charges, and diesel generator replacement are all relevant — payback periods of 4 to 6 years are achievable, with a remaining system life of 15 to 20 years of largely cost-free generation and storage.
Balance sheet asset: A Solar + BESS system is a productive, depreciating capital asset that enhances your balance sheet and demonstrates tangible sustainability investment.
Energy cost certainty: Your solar generation and storage costs are fixed from day one — providing a long-term hedge against grid tariff escalation.
REC and carbon credit eligibility: As the owner of a renewable energy generating asset, you may be eligible to generate and monetise Renewable Energy Certificates and carbon credits — providing additional financial value.
Zero capital investment: All capital costs, financing costs, and asset ownership obligations are borne by Truven Energy or its financing partners. You invest nothing.
Immediate electricity cost savings: Your contracted tariff or service fee is structured to deliver net savings against your current electricity cost from day one of operation.
No technology risk: Truven Energy owns the system and is responsible for its performance. Battery degradation, inverter failures, and solar panel soiling are our problem to manage — not yours.
Zero maintenance responsibility: All operations, maintenance, monitoring, and performance management of the Solar + BESS system is handled entirely by Truven Energy. You simply enjoy the savings and the backup power capability.
Predictable energy costs: Your contracted tariff or fee is fixed or subject to a pre-agreed, transparent escalation mechanism — providing long-term cost predictability.
Immediate sustainability impact: From commissioning, you are maximising clean energy consumption, minimising grid dependence, and reducing your carbon footprint — contributing to your ESG objectives without any capital deployment.
Aligned interests: Because we own the system, its performance determines our financial return. Our O&M standards under the OPEX model are the highest possible — because excellent system performance is as important to us as it is to you.
Store More. Spend Less. Stay Powered. Always.
Manufacturing and Industrial Facilities: Manufacturing and industrial facilities are ideal for Solar + BESS due to high, predictable energy use, exposure to demand and time-based tariffs, need for uninterrupted operations, and frequent reliance on diesel generators.
Commercial Office Buildings and IT Parks: Large HVAC loads drive morning demand spikes, alongside high daytime energy use, backup power needs, and ESG pressures—making Solar + BESS both operationally and financially attractive.
Hospitals and Healthcare Facilities: Continuous power is critical in healthcare. Solar + BESS delivers seamless, silent, emission-free backup with near-instant switchover, keeping essential systems running without diesel’s noise, emissions, or fuel needs.
Hotels, Resorts, and Hospitality:High energy use across operations, strong sustainability-driven brand incentives, and the need for cost leadership make Solar + BESS highly attractive in this margin-sensitive industry.
Cold Chain, Food Processing, and Pharmaceuticals: Uninterrupted power for temperature control is critical—outage losses can exceed system costs. Solar + BESS delivers both savings and risk mitigation.
Data Centres and Telecom Infrastructure: Reliable, high-quality power is essential. Solar + BESS enables backup, power conditioning, and demand management while increasing renewable energy use.
Educational Institutions: Daytime energy use aligns well with solar, alongside backup needs, sustainability goals, and tight budgets—making Solar + BESS, especially OPEX models, highly attractive.
Retail and Shopping Centres: High HVAC and lighting loads, solar-aligned daytime demand, peak-related charges, and sustainability goals make Solar + BESS highly attractive.
Whether you’re exploring Solar + BESS for the first time, looking for a more transparent and reliable execution partner, or considering an OPEX model with zero upfront investment—Truven Energy is here to help.
Contact us for a no-obligation consultation. We’ll assess your energy profile and provide a clear, honest evaluation of the Solar + BESS opportunity for your business—so you can make a fully informed decision.