A little over a decade ago, solar energy occupied only a small place in India’s electricity system. High costs and limited deployment meant it was often viewed as a technology for the future rather than a practical solution for the present.
That has changed dramatically. Today, India has over 150 GW of installed solar power capacity, making it one of the world’s largest solar markets. Solar panels have become a familiar sight on rooftops, industrial facilities, agricultural fields, and utility-scale solar parks across the country. More importantly, solar energy has moved from the margins to become a key component of India’s energy mix.
Several factors have driven this transformation. Falling technology costs have made solar power increasingly affordable, while supportive government policies have encouraged investment across the value chain. As India’s electricity demand continues to rise with rapid urbanisation, industrial expansion, and the growth of digital infrastructure, solar energy is playing an increasingly important role in meeting that demand.
Government programmes have helped broaden access to solar energy. The PM Surya Ghar Muft Bijli Yojana aims to expand rooftop solar installations among households, while PM-KUSUM supports the use of solar-powered irrigation pumps by farmers. At the same time, initiatives such as the Production Linked Incentive (PLI) Scheme have encouraged investment in domestic manufacturing of solar equipment, reflecting a broader effort to strengthen India’s clean energy supply chain.
The growth of solar energy extends beyond electricity generation. It has created employment in manufacturing, project development, engineering, installation, operations, and maintenance. The sector is also attracting significant private investment and supporting the growth of industries that depend on reliable and affordable power, including data centres and advanced manufacturing.
Behind every solar panel lies a complex manufacturing process. Highly purified silicon is converted into ingots, sliced into wafers, processed into solar cells, and finally assembled into modules. India has substantially expanded its manufacturing capacity for solar cells and modules in recent years. However, much of the upstream supply chain, particularly polysilicon and wafers, continues to rely on imports. Developing these capabilities domestically remains one of the next milestones for the industry.
The rapid expansion of solar energy has also brought new challenges. As a variable source of power, solar generation must be complemented by investments in battery storage, transmission infrastructure, and a more flexible electricity grid to ensure reliable supply throughout the day. Land availability, project financing, and faster grid connectivity will also influence the pace of future growth.
India’s energy transition will ultimately depend on a diverse mix of technologies, including solar, wind, hydro, nuclear, and conventional power. Within that mix, solar has emerged as one of the country’s most important sources of new generation capacity because of its scalability, declining costs, and widespread availability.
The past decade has demonstrated how technological progress, policy support, and private investment can accelerate the adoption of clean energy at scale. The next phase will be shaped not only by how much solar capacity India adds, but also by how effectively it builds a resilient manufacturing ecosystem and modernises the power system to support a growing economy.
The views and opinions expressed in this article are the author’s own, and do not necessarily reflect those held by pv magazine.
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