Tata Power Solaroof has launched its Ghar Ghar Solar initiative in Kolkata, combining residential rooftop solar installations, affordable financing, government subsidies and battery storage solutions to accelerate clean energy adoption across West Bengal.
Kolkata, 20 October 2026: Tata Power Solaroof, part of Tata Power Renewable Energy Limited (TPREL), has launched its Ghar Ghar Solar initiative in Kolkata, announcing plans to facilitate rooftop solar adoption across three lakh households in West Bengal over the next three years. The initiative, officially announced on 15 October 2026, aims to make residential solar electricity more accessible through customised photovoltaic installations, zero-upfront financing and integrated battery energy storage solutions.
The programme offers rooftop photovoltaic systems ranging from 1 kW to 10 kW, allowing households to select capacities according to their electricity consumption and available rooftop space. It also introduces financing arrangements intended to reduce the initial financial burden associated with residential solar installations.
The announcement represents a planned expansion of Tata Power’s distributed renewable energy business. The three-lakh-home figure is a future adoption target rather than a confirmed number of newly commissioned rooftop installations.
Tata Power Expands Residential Rooftop Solar in West Bengal
West Bengal represents an opportunity for distributed renewable energy development because of its residential electricity demand, urban infrastructure and expanding commercial and industrial activities. Rooftop photovoltaic systems allow consumers to generate electricity directly at their premises, reducing dependence on purchased grid electricity when solar generation is available.
Through Ghar Ghar Solar, Tata Power intends to increase household participation in renewable electricity generation by offering installation solutions suited to different electricity requirements. Smaller systems can support households with relatively modest daytime consumption, while larger installations may serve properties with higher electrical loads.
The actual capacity selected for an individual building depends on roof area, structural suitability, electricity demand and applicable distribution utility requirements. Solar generation also varies according to irradiation, shading, module temperature and equipment performance.
According to Tata Power’s official announcement, the company had already completed 4,413 rooftop solar installations in West Bengal, representing approximately 117.17 MWp of cumulative installed capacity.
These figures demonstrate the company’s existing solar deployment in the state and provide a foundation for its proposed expansion.
However, the newly announced three-lakh-household target should be distinguished from this existing installed capacity. Future progress will depend on customer enrolment, financing approvals, equipment installation and successful commissioning.
Zero-Upfront Financing to Support Solar Adoption
A central feature of the initiative is the introduction of a financing arrangement developed in partnership with Aerem, offering eligible customers the option to install rooftop solar systems without an initial down payment.
The financing proposition includes affordable equated monthly instalments, flexible repayment options and solar insurance coverage. Tata Power has published indicative repayment structures across several residential system capacities.
For example, the company’s official financing illustration identifies an indicative monthly instalment of ₹3,451 for a 3 kW rooftop solar system, after considering applicable central subsidy benefits under a 60-month repayment arrangement.
The published instalment amounts are indicative and remain subject to applicable terms and conditions.
The zero-upfront arrangement is intended to address one of the major financial considerations associated with rooftop photovoltaic installations. Although solar electricity can reduce electricity purchases from the distribution network, equipment procurement and installation typically require an initial investment.
Financing allows eligible consumers to spread the cost over a longer period. However, zero upfront payment does not mean that the system is free, as customers remain responsible for applicable repayments.
The financial viability of a residential installation depends on electricity generation, household consumption patterns, financing costs, maintenance requirements and the electricity tariff applicable to the consumer.
Government Subsidies Under PM Surya Ghar Yojana
The initiative also encourages eligible residential consumers to access central financial assistance available through the PM Surya Ghar: Muft Bijli Yojana.
Under the programme’s subsidy structure, eligible households can receive ₹30,000 for a 1 kW rooftop solar system, ₹60,000 for a 2 kW system and up to ₹78,000 for systems of 3 kW or higher.
The central financial assistance is capped at the applicable level for 3 kW capacity. Therefore, installing a larger system does not automatically increase the central subsidy beyond the prescribed maximum.
The scheme aims to encourage residential solar deployment by reducing the effective cost of eligible installations. Consumers must satisfy the applicable programme requirements and complete the prescribed application and installation procedures to receive assistance.
The combination of subsidy support and financing arrangements can improve access to rooftop solar, particularly for households that may otherwise find the initial investment difficult to manage.
Nevertheless, the economic benefits of installation should be evaluated using realistic electricity generation estimates and the consumer’s existing electricity expenditure.
Battery Energy Storage Solutions Support Integrated Solar Systems
Tata Power’s West Bengal initiative also includes battery energy storage solutions intended to complement rooftop photovoltaic generation.
According to the company’s announcement, residential storage systems are available in configurations ranging from 5 kWh to 40 kWh. For commercial and industrial consumers, its PowerHub portfolio offers storage capacities ranging from 60 kWh to 5 MWh.
Battery storage enables electricity to be retained for later use, potentially improving the flexibility of solar energy consumption.
During periods of suitable solar generation, a properly configured photovoltaic system can charge batteries, allowing stored electricity to support selected electrical loads when direct solar generation is insufficient.
The effectiveness of storage depends on usable battery capacity, charging arrangements, power conversion efficiency and the operating requirements of the connected building.
Residential users may consider battery storage for improved energy management and backup requirements, while commercial and industrial facilities may evaluate storage for demand management and greater utilisation of renewable electricity.
However, battery energy capacity should not be confused with the continuous power rating of a storage system. The duration for which stored electricity can supply a building depends on the connected load and the technical limitations of the equipment.
Integrating rooftop solar with storage also requires appropriate electrical protection, monitoring and power conversion equipment.
The inclusion of storage expands Tata Power’s offering beyond photovoltaic installations towards integrated energy solutions.
Mera Gaon, Mera Solar to Encourage Rural Participation
Alongside the residential rooftop campaign, Tata Power has introduced Mera Gaon, Mera Solar, a community-focused initiative intended to encourage solar adoption across rural and semi-urban areas of West Bengal.
The programme emphasises consumer awareness, local engagement and greater understanding of the financial and environmental benefits of distributed solar electricity.
Rural rooftop deployment requires consideration of household electricity demand, structural suitability, installation accessibility and the availability of qualified technical service providers.
Community-oriented programmes can help consumers understand system sizing, financing requirements, electricity savings and maintenance responsibilities before choosing a photovoltaic installation.
By extending outreach beyond major urban centres, Tata Power aims to increase participation in residential renewable electricity generation across a wider range of communities.
The actual impact of the initiative will depend on the number of installations successfully completed and the long-term performance of those systems.
Tata Power’s National Rooftop Solar Portfolio
Tata Power’s expansion in West Bengal forms part of its broader rooftop solar business across India.
According to the company’s official figures, Tata Power Solaroof had completed 5,74,948 rooftop solar installations nationwide as of 30 September 2026, representing more than 5.67 GWp of cumulative installed capacity.
The company’s portfolio covers residential, commercial and industrial customers, demonstrating the scale of its participation in distributed photovoltaic deployment.
Rooftop solar can contribute to renewable electricity expansion by utilising existing building surfaces rather than requiring dedicated land for every installation.
For consumers, its practical value depends on system performance, electricity consumption and the financial arrangements associated with the installation.
For the wider renewable energy industry, growth in rooftop solar deployment can create opportunities for photovoltaic module suppliers, inverter manufacturers, installation contractors, financing providers and maintenance service companies.
The integration of battery storage may also increase demand for energy management technologies and associated electrical infrastructure.
The next important milestones for Tata Power’s West Bengal initiative will be customer adoption, financing arrangements, installation progress and verification of newly commissioned rooftop solar capacity.
Conclusion
Tata Power’s Ghar Ghar Solar initiative in West Bengal represents a significant expansion plan for residential rooftop photovoltaic adoption, supported by financing solutions, government subsidy assistance and battery energy storage technology.
The company’s target of reaching three lakh homes over three years highlights its intention to increase participation in distributed electricity generation across urban, semi-urban and rural communities.
Its existing installations provide an operational foundation, while the zero-upfront financing arrangement seeks to reduce barriers to residential solar adoption.
The programme’s contribution to West Bengal’s renewable energy sector will ultimately depend on customer participation, successful installations, grid integration and sustained operating performance.
As implementation progresses, verified commissioning figures and electricity generation data will provide clearer evidence of the initiative’s contribution to the state’s clean energy development.
Official Sources and References
1. Tata Power — Official Media Release
Celebrate Durga Pujo with the Power of the Sun: Tata Power Solaroof Brings Ghar Ghar Solar to Kolkata with Zero Upfront Installation Cost.
Published: 15 October 2026
https://www.tatapower.com/news-and-media/media-releases/ghar-ghar-solar-kolkata
2. Press Information Bureau — Ministry of New and Renewable Energy, Government of India
Cabinet Approves PM-Surya Ghar: Muft Bijli Yojana for Installing Rooftop Solar in One Crore Households.
Published: 29 February 2024
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