Product Manager – BESS & Energy Storage

Company: Loom Solar

Department: Product / Energy Storage

Location: Faridabad / Delhi NCR

Experience: 6–12 years

Qualification: B.Tech/B.E. – Electrical, Electronics, Power Electronics, Energy Storage or related field

Reporting To: CPO / Business Head – Energy Storage

- Role Purpose

Loom Solar is building a scalable Energy Storage & BESS business ranging from 1 kWh residential batteries to 1,000 kWh / 1 MWh commercial and industrial Battery Energy Storage Systems.

We are looking for a Product Manager – BESS & Lithium Battery who can own the complete product lifecycle:

Market Research → Product Strategy → Product Specification → Cell/Battery/OEM Selection → BMS → PCS/Inverter Integration → Certification → Product Launch → Sales → Service → Product Profitability The candidate will be responsible for developing a competitive BESS portfolio for residential, commercial, industrial, telecom, solar EPC, microgrid, backup power and energy-management applications.

The role requires a combination of technical depth, product management, commercial understanding and solid execution capability.

- Product Portfolio The Product Manager will manage and develop the complete storage portfolio:

Residential

- 1 kWh
- 2.5 kWh
- 5 kWh
- 10 kWh
- 15 kWh
- 20 kWh

Commercial
- 25 kWh
- 50 kWh
- 100 kWh
- 200 kWh
- 261 kWh
- 500 kWh

Industrial / Utility
- 1,000 kWh / 1 MWh
- Modular BESS solutions above 1 MWh as the business expands

The portfolio may include: Battery Pack + Rack + BMS + PCS + EMS + HVAC + Fire Safety + Container/Cabinet + Monitoring Software

- Key Responsibilities

A. BESS Product Strategy

Develop the 3-year BESS product roadmap for Loom Solar.

Define

- Residential battery roadmap
- Hybrid inverter + battery combinations
- C&I; BESS roadmap
- AC-coupled BESS
- DC-coupled BESS

- Modular BESS

- Cabinet BESS

- Containerized BESS
- 1 MWh+ systems

Identify market opportunities in
- Rooftop solar

- PM Surya Ghar

- Residential backup
- C&I; peak shaving

- Load shifting

- Demand management
- Solar self-consumption

- Diesel generator replacement

- Microgrids

- Telecom

- EV charging
- Open-access projects

- Solar EPC

- Captive power

- Renewable energy projects

4. Product Development Own the complete BESS product-development lifecycle.

Customer Requirement → PRD → Technical Specification → Cell Selection → Pack Design → BMS → PCS → EMS → Prototype → Testing → Certification → Pilot → Commercial Launch

Prepare detailed product specifications covering:

- Battery chemistry

- Cell format

- Cell capacity

- Nominal voltage

- Usable energy
- C-rate

- DoD
- Round-trip efficiency

- Cycle life

- Operating temperature

- IP rating

- Communication protocols
- CAN / RS485 / Ethernet

- BMS architecture

- PCS rating

- EMS functionality

- Thermal management

- Fire protection

- Safety systems

- Remote monitoring

- Warranty

5. Lithium Battery Technology The candidate should understand:
- LFP / LiFePO₄ technology
- Lithium-ion battery architecture
- Cell → Module → Pack → Rack → System

- Battery management systems

- SOC / SOH

- Cell balancing

- Thermal runaway

- Thermal management

- Battery degradation
- C-rate

- Depth of discharge

- Cycle life

- DC protection

- AC protection
- Contactor and pre-charge systems

- Fuses and breakers

- Communication architecture

Experience with LFP-based stationary storage will be strongly preferred.

- BMS & EMS Product Ownership





Own the functional requirements for:

BMS

- Cell voltage monitoring

- Temperature monitoring
- Over-voltage protection
- Under-voltage protection
- Over-current protection
- Short-circuit protection
- Over-temperature protection

- Cell balancing

- SOC estimation

- SOH estimation

- Fault management

- Event logging

EMS

Define requirements for

- Solar priority

- Battery priority

- Grid charging

- Peak shaving
- Time-of-use optimization

- Load shifting

- Export limitation

- Backup operation

- DG synchronization

- Energy forecasting

- Remote monitoring

- Energy analytics

7. PCS & Inverter Integration Work closely with engineering and inverter teams to integrate:

Battery + BMS + PCS + Hybrid Inverter + Solar + Grid + Load + EMS

Define

- AC/DC architecture

- Power rating

- Charging power

- Discharging power

- Grid synchronization
- Grid-forming / grid-following requirements
- Black-start capability where applicable

- Backup functionality

- Parallel operation
- Multi-rack operation

- Communication protocols

8. OEM / Supplier Management

Identify and qualify

- Lithium cell manufacturers
- Battery-pack OEMs

- BMS suppliers

- PCS manufacturers

- EMS/software providers

- HVAC suppliers

- Fire suppression suppliers

- BESS enclosure/container manufacturers

Evaluate vendors on Technology | Quality | Cost | Reliability | Warranty | Certification | Capacity | Lead Time | Service | Financial Stability

Develop supplier scorecards and quarterly vendor reviews.

- Product Cost & Commercial Ownership

Own the product economics.

Track

- Cell cost

- Pack cost

- BMS cost

- PCS cost

- EMS cost

- Cabinet/container cost

- HVAC

- Fire safety

- Installation

- Logistics

- Warranty provision

- Service cost

Develop product-level: BOM → Landed Cost → Dealer Price → EPC Price → Project Price → Gross Margin → Contribution Margin

Continuously drive ₹/kWh cost reduction.

- Product Pricing

Develop pricing architecture for

Residential

₹/kWh + inverter/system package

C&I;

₹/kWh + PCS + EMS + installation

Large BESS

₹/kWh + EPC + commissioning + O&M;

Track competitor pricing and maintain a monthly:

BESS Market Price Tracker

- Product Certification & Safety

Coordinate with engineering, quality and certification teams to ensure compliance with applicable Indian and international standards.

Own the certification roadmap covering, as applicable:

- Battery safety

- BMS safety

- EMC

- Electrical safety

- Transportation requirements

- Fire safety

- Grid compliance

- Environmental testing

- Factory acceptance testing

- Site acceptance testing

Maintain a complete BESS technical compliance matrix before launch.

- Quality & Reliability

Create a closed-loop quality system:

Field Failure → Data → RCA → CAPA → Engineering Change → Validation → Product Improvement

Monitor

- Cell failure

- Pack failure

- BMS failure

- PCS failure

- Communication failure

- Thermal issues

- Warranty claims

- RMA

- Field failure rate

- MTBF
- Availability

For large BESS systems, establish: FAT → SAT → Commissioning → Performance Test → O&M;

- Product Warranty





Develop warranty architecture based on:
- Years

- Cycles

- Throughput

- Remaining capacity

- Operating conditions

- Temperature

- DoD
- C-rate

Define warranty policies for
- Residential batteries

- Commercial BESS
- 1 MWh BESS

- Extended warranty
- AMC/O&M;

14. Product Launch Own the complete launch process.

Prepare

- Product name

- Positioning

- Datasheet

- Technical manual

- Installation manual

- Warranty policy

- Pricing

- Product presentation

- Sales kit

- ROI calculator

- BESS sizing calculator

- Installation checklist

- Troubleshooting guide

- Training material

Train Sales → Dealer → EPC → Installer → Service Team

- BESS Sizing & Solution Design

Create standard sizing methodologies for:

Residential

Load → Solar → Battery → Inverter → Backup requirement

C&I;

Load profile → Solar generation → Peak demand → Tariff → Battery size → PCS size → ROI

Develop tools for

- Battery sizing

- PCS sizing

- Solar+BESS sizing

- Backup sizing

- Peak shaving

- Energy arbitrage

- DG replacement

- ROI/payback

16. Customer & Market Development

Personally meet

- Large EPCs
- C&I; customers

- Solar installers

- Developers

- Industrial customers

- Telecom companies

- Data centers

- EV charging companies

- Energy consultants

- Government customers

Conduct regular customer discovery and convert requirements into product roadmap decisions.
- Competitive Intelligence

Track BESS players and technologies across:
- Product architecture

- Cell chemistry
- ₹/kWh

- Warranty

- Cycle life

- Efficiency

- PCS

- EMS

- Fire safety

- Monitoring

- Installation
- O&M;

Maintain a monthly competitor dashboard.
- Digital & Monitoring Product

Work with the technology team to build a Loom BESS monitoring platform covering:
- SOC

- SOH

- Voltage

- Current

- Temperature

- Power

- Energy

- Charging/discharging

- Faults

- Alarms

- Historical generation

- Battery degradation

- Remote diagnostics

- Firmware updates

- Warranty tracking

- Sales Enablement

Develop

- Dealer BESS training

- EPC training

- Installer certification

- BESS sales presentation

- Technical comparison

- Competitor battle cards

- ROI calculator

- Application calculator

- Product selection guide
- Case studies

The Product Manager should spend meaningful time in the market with the sales organization.

Requirements

- 6–12 years of experience in lithium batteries, BESS, energy storage, inverter or power electronics.
- Strong understanding of LFP battery systems.
- Experience in product development/product management.
- Experience working with battery OEMs.
- Understanding of BMS and PCS.
- Strong understanding of solar + storage systems.
- Experience with commercial negotiations and product costing.
- Strong analytical and project-management skills.

Preferred

Experience in

- C&I; BESS
- 100 kWh–1 MWh systems

- Containerized BESS

- Hybrid inverters

- EMS

- Solar EPC

- Energy management

- EV charging

- Microgrids

- DG replacement
- Utility-scale storage

Benefits
- Freedom : We allow you freedom to “follow your passion”
- Opportunity to work with India’s fastest growing SMB Company
- Regular Training of Professional Skills such as Leadership, Problem Solving and Product offerings.
- Multifold chances increase to build the career in Solar Energy Sector
- Exponential Growth in Salary and other remuneration
- Great learning curve and hand on experience with leadership team about solar in future

📌 Product Manager - Energy Storage (Faridabad)
🏢 LOOM SOLAR
📍 Faridabad