SPML Infra Unveils Proprietary 104.4 kWh Battery Pack

KOLKATA, India — Infrastructure development firm SPML Infra Limited announced a significant breakthrough on Friday, September 4, 2026, revealing the successful development and testing of its proprietary 104.4 kWh battery pack. Developed under the company's own intellectual property, the advanced Battery Energy Storage System (BESS) unit has successfully cleared key international safety, performance, and transportation testing standards. The milestone underscores the company's strategic push to build indigenous technology and manufacturing capabilities tailored to India's fast-expanding clean energy and grid management sectors.

Rigorous International Testing and Compliance

According to regulatory filings submitted to the National Stock Exchange (NSE) and BSE Limited, the SPML-developed 104.4 kWh battery pack successfully met comprehensive international compliance criteria. The testing regimen covered critical benchmarks including UL9540A for thermal runaway safety, alongside various IEC standards (IEC 62619, IEC 63056, IEC 60730, IEC 61000-6-2, and IEC 61000-6-4) governing battery performance, functional safety, and electromagnetic compatibility. Additionally, the system cleared UN38.3 certification requirements at both the battery-pack and system levels, ensuring safe handling and transportation logistics.

These multi-layered certifications provide critical validation of the system's structural integrity and thermal management, positioning the equipment for large-scale commercial utility deployment.

Scaling Indigenous Manufacturing in Pune

As part of its broader localization roadmap, SPML Infra Limited is establishing dedicated BESS manufacturing and integration infrastructure in Pune, Maharashtra. The facility will focus on battery pack assembly, system engineering, integration, and execution capabilities for utility-scale deployment. By combining proprietary product engineering with its established engineering, procurement, and construction (EPC) background across power and water sectors, the firm aims to create an integrated ecosystem platform.

The integration of local manufacturing with intellectual property control allows the company to reduce foreign supply chain dependencies and rapidly adapt storage products to shifting domestic grid requirements.

Impact on India's Renewable Energy and Grid Reliability

India's rapid expansion of solar and wind generation has heightened the demand for reliable energy storage solutions to manage peak-load shifts, frequency regulation, and renewable energy integration. The commercialization of indigenous storage solutions like the SPML 104.4 kWh battery pack addresses national energy security goals by providing domestic utilities and independent power producers with certified, high-performance storage assets.

Official Sources Section

Information regarding the product development, testing compliance, and strategic expansion is based on official corporate announcements and regulatory disclosures issued by SPML Infra Limited to the National Stock Exchange (NSE) and BSE Limited under Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015.

Quote Section

"The validation of our proprietary 104.4 kWh battery pack represents an important milestone in SPML Infra's energy storage journey," stated Abhinandan Sethi, Managing Director, SPML Infra Limited. "Our ambition is to build an integrated Indian energy storage platform spanning proprietary product development, manufacturing, system integration and large-scale project execution."

Why It Matters

The rollout of a proprietary, internationally certified 104.4 kWh battery pack by a domestic infrastructure leader reduces reliance on imported energy storage hardware. For India's power sector, scaling indigenous BESS manufacturing accelerates grid stability, supports aggressive renewable energy targets, and fosters long-term technological self-reliance.

Key Facts at a Glance

• Product Innovation: Development of a proprietary 104.4 kWh battery pack under SPML Infra Limited's own intellectual property.

• Safety & Testing: Successfully cleared UL9540A, multiple IEC standards (62619, 63056, 60730, 61000-6-2, 61000-6-4), and UN38.3 transport certifications.

• Manufacturing Hub: BESS assembly and integration capabilities are being established in Pune, Maharashtra.

• Strategic Objective: Designed to cater to India's growing utility-scale energy storage, grid balancing, and renewable integration needs.

FAQ Section

What is the significance of the 104.4 kWh battery pack developed by SPML Infra? It represents SPML Infra Limited's entry into proprietary energy storage technology, engineered under its own IP to support India's grid-scale BESS market.

What international standards has the battery pack cleared? The system has completed testing requirements under UL9540A, IEC 62619, IEC 63056, IEC 60730, IEC 61000-6-2, IEC 61000-6-4, and UN38.3.

Where is SPML Infra setting up its BESS manufacturing facility? The company is establishing its manufacturing and integration capabilities in Pune, Maharashtra.

How does this development impact India's power sector? It provides certified domestic hardware solutions necessary for renewable energy integration, peak-load management, and enhanced power grid stability.

Source: SPML Infra Limited Regulatory Filing, National Stock Exchange (NSE), BSE Limited