India's BESS Manufacturer. Cell to container.

India's storage market has moved from niche to strategic in a single budget cycle. The Ministry of New and Renewable Energy's 2030 target — 500 GW renewable capacity plus mandatory storage obligations — has triggered procurement activity at SECI, NTPC Renewable Energy, and every major state DISCOM. Total storage tenders issued between 2023 and early 2026 have crossed 12 GWh, with a pipeline of 30+ GWh announced.

That pipeline comes with a compliance requirement that matters: the Production Linked Incentive (PLI) scheme for Advanced Chemistry Cells, DPIIT's Make-in-India certification framework, and the emerging ALMM (Approved List of Models and Manufacturers) registry all create structural preference for domestic supply. Import duty on finished battery systems currently stands at 20–25%, which alone shifts the landed cost calculus materially for imported alternatives.

SECI's storage tenders have progressively tightened MII content requirements. Projects bidding under ISTS-waiver schemes or SECI-MNRE frameworks now require local content certification — a condition that Chinese and Korean BESS vendors cannot fulfil from their home factories. Procurement teams that source from India-manufactured BESS avoid bid disqualification risk and benefit from faster financial closure with Indian lenders and DFIs (IREDA, PFC, REC), who prefer exposure to domestically certified assets.

Beyond compliance, the operational case is equally strong: same-timezone warranty response, on-site sparing without 8-week import lead times, and grid-code compatibility certified by a manufacturer that understands CERC's BESS technical standards and CEA's grid interconnection requirements.

SilicIndia Energies is a joint venture of the Sawarthia Group and Kukadia Group, founded in 2025 with a single mandate: build India's first fully vertically integrated BESS manufacturing line. The company is headquartered in Mandvi, Surat district, Gujarat — a location chosen for its proximity to port logistics, industrial power infrastructure, and the established Surat industrial corridor.

The founding team combines complementary depth. Krishna Sawarthia (Managing Director — Strategy & Supply Chain) brings a Cardiff University Master's in Chemistry with a focus on materials and sustainability, along with hands-on supply chain experience across the Sawarthia Group's industrial operations. Parthiv Kukadia (Managing Director — Engineering & Technology) holds an aerospace engineering background with specialisation in robotic automation and agentic AI systems, applied here to production-line optimisation and quality control architecture.

Phase 1 of the Mandvi manufacturing facility commissions in 2026 with a 5 GWh annual nameplate capacity. The 18,400 m² plant houses a 17-station automated production line spanning cell intake, module assembly, pack assembly, rack integration, and full container build-out. Phase 2, targeting cell manufacturing, is scoped for 2028.

SilicIndia holds IEC 62619 certification issued by Bureau Veritas, MSME/Udyam registration from the Ministry of MSME (Government of India), and is DPIIT-recognised under the Make-in-India framework. The company actively participates in SECI, GUVNL, and NTPC tender pre-qualifications.

Learn more on our About page, or review certifications on the Certifications page.

“Cell-to-container” is not a marketing phrase at SilicIndia — it describes the actual boundary of our manufacturing scope. Procured LFP 314 Ah prismatic cells enter Station 1 of our automated line. A complete, tested, grid-ready 5 MWh container exits Station 17. Nothing in between is sourced as a pre-assembled sub-system from a third party.

The assembly hierarchy: 12 cells form a Module (12.06 kWh). Four parallel strings of 12 series cells form a Pack (48.2 kWh). Twelve packs stack into a Rack (578 kWh). Eight racks occupy a 20-ft high-cube container with integrated HVAC, fire suppression, BMS, and PCS interface — the complete SIE-BESS5000 at 4,627 kWh usable (5 MWh nominal).

Line takt time is 42 seconds per station under full-rate production. Each station is instrumented with vision-based quality inspection: dimensional tolerance on cell-to-busbar joints, torque verification on rack bolting, and thermal imaging on completed pack assemblies. First-pass yield is 99.7% — rework rate under 0.3%.

Why does this matter to buyers? A vendor that assembles imported sub-systems has limited visibility into inter-component failure modes and cannot certify the full stack to a single standard. SilicIndia's IEC 62619 certification covers every layer — cell, module, pack, rack, and container — under a single Bureau Veritas audit scope. Warranty claims stay with one responsible party. Spare parts are drawn from the same production line, not from an overseas distributor.

Container build-out to delivery: <11 hours of factory time from first cell loaded to container seal. Full factory acceptance testing (FAT) — including BMS commissioning, charge/discharge cycle, and insulation resistance verification — is completed before shipment. Site commissioning is then a connection and configuration exercise, not a discovery exercise.

Explore the full architecture interactively on our Technology page, and review the manufacturing line at Manufacturing.

Five models span 250 kWh to 10 MWh on a single cell chemistry — LFP 314 Ah prismatic. Every model uses the same BMS architecture, the same IEC 62619-certified cell stack, and the same factory acceptance test protocol. Scaling up is a matter of container count, not a different product family.

IEC 62619 — Bureau Veritas. The primary international standard for secondary lithium cells in industrial applications. Our certification covers electrochemical safety (overcharge, over-discharge, short circuit), mechanical integrity (vibration, shock, crush), and thermal abuse testing (external fire, thermal cycling). Valid for all SIE-ESS and SIE-BESS product lines.

MSME / Udyam Registration. Registered under the MSME Development Act with the Ministry of Micro, Small and Medium Enterprises, Government of India. Qualifies SilicIndia for Make-in-India procurement preferences, MSME quotas in government tenders, priority-sector financing from PSU banks, and SIDBI credit guarantees.

DPIIT Recognition. Recognised by the Department for Promotion of Industry and Internal Trade under the Startup India initiative. Supports ALMM eligibility and positions SilicIndia for PLI-adjacent schemes as they evolve.

In progress for 2026 commissioning: BIS IS 16270 (Indian standard for secondary lithium cells), UL 9540A (fire safety standard for energy storage systems — required for several commercial building deployments), and ISO 9001:2015 quality management system certification.

Download current certificates and compliance documents on the Certifications page.

The headline CAPEX comparison favours imports — for now. Chinese BESS vendors have scale advantages that compress ex-factory pricing. But the full-lifecycle picture is less flattering for imported systems.

Import duty and logistics. Finished BESS systems attract 20–25% basic customs duty on import into India. Add ocean freight, insurance, port handling, and inland transport — the landed cost premium over SilicIndia's ex-works Mandvi price narrows significantly. For projects requiring rapid deployment or multi-phase delivery, the 8–12 week ocean transit timeline is a hard constraint that domestic supply eliminates.

Warranty response and sparing. When a rack BMS faults at 2 AM on a grid-connected BESS in Rajasthan, the response time from a Shenzhen warranty team is not hours — it is weeks for a site visit and months for a parts replacement if the component is not stocked locally. SilicIndia's O&M team operates from Gujarat; we keep a spares inventory at Mandvi for all production models.

Grid compliance and EPC integration. Indian EPC firms report integration friction with imported BESS systems: grid-code parameter mismatches, SCADA protocol gaps, and commissioning delays caused by documentation in non-English formats. SilicIndia systems are designed to CERC standards, tested against Indian grid-code profiles, and commissioned by the same engineering team that assembled the unit.

Tender eligibility. MII content requirements and ALMM registry conditions will progressively tighten for SECI and state utility procurement. Buyers that lock in imported supply chains face renegotiation or disqualification risk as these rules mature. SilicIndia removes that regulatory uncertainty from the supply chain.

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