Product Manager - Energy Storage

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

1. 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 strong execution capability.

2. 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

3. 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.

6. 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.

9. 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.

10. 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

11. 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.

12. 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

13. 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

15. 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.

17. 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.

18. 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

19. 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

1. Freedom : We allow you freedom to “follow your passion”

2. Opportunity to work with India’s fastest growing SMB Company

3. Regular Training of Professional Skills such as Leadership, Problem Solving and Product offerings.

4. Multifold chances increase to build the career in Solar Energy Sector

5. Exponential Growth in Salary and other remuneration

6. Great learning curve and hand on experience with leadership team about solar in future