ONergy Solar

What ONergy Solar does

ONergy Solar (legal name Punam Energy Pvt Ltd) is a Kolkata-headquartered, India-focused decentralized solar solutions provider founded in 2009. The company operates an end-to-end model spanning design, engineering, in-house manufacturing, installation, and operations and maintenance across four product lines: residential rooftop solar, megawatt-scale rooftop and ground-mounted solar for corporates and industries (with hybrid/battery storage options), solar water pumps (1-10 HP) for agricultural use, and rural energy access systems including solar street lighting, home systems, and microgrids.

The company runs a multi-channel go-to-market: direct enterprise field sales for C&I clients, direct-to-consumer sales for residential rooftop (toll-free, WhatsApp, website), and a community-led, partnership-driven model with NGOs and CSR programs for rural and underserved communities. Revenue is generated through one-time hardware sales (panels, pumps, street lights, batteries), installation and project services, ongoing O&M managed services, and government subsidy facilitation under programs such as PM Surya Ghar. Customers include BMW Industries, Aditya Birla Group, Jindal Steel & Power, Kolkata Metro Railway, State Bank of India, and 60,000+ residential households across states including West Bengal, Odisha, Assam, Jharkhand, and Uttar Pradesh.

The company claims more than 1 million lives positively impacted, 40+ MW of cumulative installations, 10,000+ completed projects, and 4,000+ solar pumps deployed, supported by empanelment with MNRE, SECI, and NSIC and a manufacturing facility in Howrah, West Bengal. It is recognized as a social enterprise (OWLER classification) for its impact-led distribution into underserved communities, while simultaneously operating a profitable C&I solar EPC business alongside foundation/grant-funded rural deployments.

Name

ONergy Solar

Legal name

Punam Energy Pvt Ltd

Website

https://onergy.in

Company type

Private

Founded year

2009

Operating status

Operating

Headcount range

1–10 employees

Short description

ONergy Solar (Punam Energy Pvt Ltd) is an India-based decentralized solar solutions provider founded in 2009 that designs, manufactures, installs, and maintains rooftop solar, solar water pumps, and rural energy systems for residential, corporate, agricultural, and underserved-community customers across East, Northeast, and North India.

Ownership category

akta.pro rank

Product category

Solar Energy Solutions

NAICS

Solar Electric Power Generation (221114)

SIC

Electric, Gas & Sanitary Services (4900)

akta.pro primary industry

Solar EPC & Construction (Utility-Scale, Rooftop, Balance of System) (EUAMABAB)

akta.pro secondary industries

Distributed Generation (DG) Solar & Small Wind (EUAMAJAD), Solar PV Module Manufacturing (Cells, Modules, Thin-Film) (EUAMABAD)

Keywords

• Residential rooftop solar
• Commercial solar installations
• Solar water pumps
• Decentralized solar solutions
• Rural energy access

Headquarters

HQ city

Kolkata

HQ country

India

HQ region

Asia

Offices6 records

Markets served

GTM type

B2B and B2C

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Solar Equipment Sales: One-time sales of solar photovoltaic systems including rooftop panels, water pumps, street lights, and related components for residential, commercial, and industrial applications
2. Installation and Project Services: Design, engineering, installation, and commissioning services for solar power plants. Includes site assessment, customized proposals, and grid connection support
3. Operations and Maintenance (O&M): Ongoing maintenance and monitoring services for installed solar systems ensuring long-term performance
4. Government Subsidy Facilitation: Assistance with PM Surya Ghar and other government subsidy programs for residential installations, taking a facilitation fee or margin on subsidized equipment sales

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels8 records

Core offering

ONergy Solar provides end-to-end decentralized solar PV solutions for residential, commercial, industrial, agricultural, and rural customers across India. Its portfolio includes rooftop solar systems for homes and MW-scale installations for corporates, solar water pumps (1–10 HP) for farming, and off-grid solar street lighting, home systems, and mini-grids for underserved communities, delivered through in-house design, engineering, manufacturing, installation, and operations and maintenance services.

Product overview

ONergy Solar (Punam Energy Pvt Ltd) is an end-to-end decentralized solar solutions provider offering a comprehensive portfolio of solar products and services. The core offerings include Solar Rooftop Solutions for Residences (enabling homeowners to reduce electricity bills through customized systems with PM Surya Ghar subsidy support), Solar Rooftop for Corporates & Industries (megawatt-scale solutions including rooftop, ground-mounted, and hybrid battery storage systems), Solar Water Pumps (ranging from 1-10 HP for agriculture, irrigation, and rural water supply), and Solar for Rural Energy Access (including solar street lighting, home systems, mini-grids, and community infrastructure). The company also provides Energy Monitoring & Management Systems for performance tracking. These products are delivered through an end-to-end service model covering design, engineering, manufacturing, installation, and O&M services.

Differentiator

Problem solved

Functional benefit

Products and services

• Residential Rooftop Solar Systems Grid-tied rooftop solar systems for individual homeowners that reduce electricity bills and provide energy independence. Includes free site survey, customized proposals, installation, commissioning, and ongoing monitoring and maintenance, with PM Surya Ghar government subsidy support (up to 75% in West Bengal) and zero down payment financing through bank and NBFC partners.
• Commercial and Industrial Solar Solutions Megawatt-scale solar power plant solutions for commercial and industrial facilities, including rooftop power plants, ground-mounted systems, hybrid battery storage, and energy monitoring and management systems. Delivered with up to 60% reduction in power expenses, a 4-year average payback, and 25-year design life for factories, warehouses, corporate campuses, and large commercial buildings.
• Solar Water Pumps Solar-powered submersible and surface pumps ranging from 1 HP to 10 HP (AC/DC) with smart controllers for agriculture, irrigation, and rural water supply. Supports open wells, borewells, rivers, and ponds, and is compatible with drip, sprinkler, and flood irrigation systems, with up to 75% government subsidy eligibility and a payback period of 2–3 years.
• Rural Energy Access Solutions Decentralized solar products for off-grid households, rural schools, healthcare centers, and tribal communities, including solar street lighting (7W to 100W), standalone solar home systems for lighting, fans, and small appliances, mini-grids, and rooftop systems for community infrastructure. Delivered through partnerships with organizations such as SELCO Foundation, WWF India, CHAI, and WRI.
• Solar Installation, Commissioning, and Operations and Maintenance Services Professional services covering site assessment, customized engineering and design, installation, grid connection support, and ongoing operations, maintenance, and performance monitoring for installed solar systems across residential, commercial, industrial, agricultural, and rural deployments.

Quantifiable outcome

• Significant reduction in power expenses (often up to 60%) for commercial and industrial clients
• +5 more outcomes

Named customers12 records

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

13 partnerships are on record, tiered core, major and minor.

• SELCO FoundationcoreStrategic or Co-development PartnerImplemented solar lighting and microgrid projects to power schools and rural households in off-grid regions of Odisha and West Bengal. These systems provide clean lighting, enhance children's study hours, and enable local livelihoods.
• WWF IndiacoreStrategic or Co-development PartnerPartnered to deploy solar solutions in ecologically sensitive and remote areas — ensuring sustainable energy access for forest communities while reducing human-wildlife conflict risks through solar street lighting and home systems.
• CHAI (Christian Hospitals Association of India)coreStrategic or Co-development PartnerInstalled solar rooftop systems and energy backup solutions across rural hospitals and health centers. These projects ensure uninterrupted power for essential medical equipment, lighting, and cold-chain vaccine storage.
• WRI (World Resources Institute)coreStrategic or Co-development PartnerCollaborated on clean energy projects promoting inclusive development through renewable energy access for micro and small enterprises, enhancing productivity and livelihood opportunities.
• MNRE (Ministry of New and Renewable Energy)coreOthersEmpanelled with MNRE for government rooftop and irrigation subsidy programs, enabling participation in national solar initiatives.
• SECI (Solar Energy Corporation of India)coreOthersEmpanelled with SECI for solar projects and government initiatives.
• NSIC (National Small Industries Corporation)coreOthersEmpanelled with NSIC for government procurement and solar programs.
• UNDP (United Nations Development Programme)majorStrategic or Co-development PartnerSupported and recognized by UNDP as part of global development initiatives for sustainable energy access.
• IIM Ahmedabad (CIIE)majorStrategic or Co-development PartnerIncubated and supported by CIIE (Centre for Innovation, Incubation and Entrepreneurship) at IIM Ahmedabad for impact-driven ventures.
• ISB-DLabsmajorStrategic or Co-development PartnerReceived support from ISB D-Labs for startup development and scaling.
• IRMA (Institute of Rural Management Anand)minorStrategic or Co-development PartnerAcademic partnership for rural management and sustainable development guidance.
• Santa Clara UniversityminorStrategic or Co-development PartnerSelected for Santa Clara Accelerator program for impact ventures.
• Water & Energy for Food Initiative (WE4F)minorStrategic or Co-development PartnerGlobal partnership for promoting solar-powered solutions in agriculture and food production.

Scale indicators8 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• Fourth Partner Energy: India-focused distributed solar EPC for C&I customers with end-to-end capabilities and financing partnerships — directly comparable to ONergy's C&I rooftop and O&M offerings.
• Freyr Energy: Residential and SMB rooftop solar installer with strong digital sales motion and subsidy facilitation; closest India-based comparably-sized peer to ONergy's residential business.
• Amplus Solar: Specialised C&I rooftop and open-access solar EPC provider in India, serving similar enterprise customers with a project-development and O&M model akin to ONergy's C&I segment.
• SELCO India (SELCO Foundation ecosystem): Pioneer in decentralised solar for underserved Indian households and institutions; directly comparable to ONergy's rural energy access business and a long-standing implementation partner of ONergy.
• Orb Energy: India-focused rooftop solar and solar pump provider for residential, commercial, and small industrial customers — closely matches ONergy's multi-vertical distributed solar model.
• Gensol Engineering: Indian solar EPC and module manufacturing company competing in rooftop, ground-mounted, and hybrid storage projects; comparable scale and vertical range to ONergy's MW-scale capabilities.

Broad incumbents

• Tata Power Solar Systems: Largest Indian solar EPC with pan-India C&I rooftop, utility-scale, and residential offerings under the Tata brand; competes with ONergy in C&I but with vastly greater scale and balance sheet.
• Adani Solar (Adani Group): Vertically integrated module manufacturer and solar developer with utility and rooftop offerings; competes broadly with ONergy across multiple segments at much larger scale.
• Vikram Solar: Indian solar module manufacturer with EPC and rooftop offerings; competes in distributed solar EPC while also serving utility-scale — comparable product breadth though anchored in manufacturing.

Regional players

• SunEdison Infrastructure (India operations, now part of GreenLine/others): Previously a major distributed solar EPC player in India; represents the category of regional rooftop/utility EPC operators that compete with ONergy, though operations have been reshaped post-restructuring.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/onergyre
• YouTubeyoutube.com/channel/UCI9a6C9b-Y1jOEFJSFjHlRw
• Facebookfacebook.com/onergy
• LinkedInlinkedin.com/company/500777

Revenue estimate

Valuation estimate

Number of profiles

Profiles11 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about ONergy Solar