NEW DELHI — India’s effort to build a more self-reliant solar manufacturing industry is facing a major supply-chain challenge, with a shortage of domestically produced solar cells forcing some panel manufacturers to reduce or suspend production.

The disruption highlights a difficult transition for India: the country is trying to reduce its dependence on Chinese solar components while domestic manufacturing capacity has yet to expand enough to meet demand. Reuters reported that nearly one-third of small and medium-sized Indian solar-panel manufacturers have halted production, while others have sharply reduced operating cycles.

Domestic Solar Cells Are in Short Supply

India has built substantial capacity to manufacture finished solar modules, but the supply of the cells needed to make those modules remains far smaller.

Government estimates put India’s installed solar-module manufacturing capacity at roughly 200 GW, compared with around 27 GW of solar-cell capacity. Industry researchers say effective operating cell capacity may be considerably lower, at approximately 16–18 GW.

That imbalance has created a bottleneck.

Manufacturers without their own cell-production facilities have reported waiting periods of as long as six to eight months for domestic cells. The shortage can make locally produced panels substantially more expensive than modules using imported Chinese cells.

New Rules Accelerate the Pressure

The immediate problem is connected to India’s push to increase domestic sourcing.

Rules that took effect on June 1 require greater use of locally manufactured solar cells in eligible projects. The policy is designed to strengthen India’s domestic clean-energy supply chain and reduce dependence on imports.

However, expanding solar-cell production is considerably more complicated than assembling finished modules.

Cell factories require advanced technology, specialized equipment, large investments and lengthy commissioning periods. Industry representatives say the required manufacturing ecosystem cannot be expanded quickly enough to eliminate the current shortage.

China Remains Deeply Embedded in the Supply Chain

India’s dependence on China remains one of the biggest obstacles.

Industry estimates indicate that China accounts for approximately 95% of India’s solar-cell imports. Those imports increased significantly during the last financial year as Indian manufacturers continued relying on Chinese supplies.

China also dominates much of the global solar manufacturing-equipment and technology ecosystem.

According to industry sources cited by Reuters, restrictions on Chinese exports of certain manufacturing technology, equipment and technical support could make it harder for Indian companies to rapidly establish new cell factories.

This creates a strategic dilemma for New Delhi: reducing Chinese imports requires expanding domestic capacity, but building that capacity can itself depend on technologies and equipment in which Chinese companies remain dominant.

Production Cuts Threaten Smaller Manufacturers

The shortage is particularly difficult for smaller module manufacturers.

Reuters reported that at least three companies it contacted had temporarily stopped production because they could not obtain sufficient domestic cells. Several others had reduced production substantially.

The industry’s smaller manufacturers collectively represent a significant employment base.

Standalone module manufacturers without their own cell-production facilities employ around 75,000 people, according to an industry group cited in the Reuters report.

Extended production interruptions could therefore affect not only solar-panel supply but also employment and investment across India’s renewable-energy manufacturing sector.

India’s 2030 Renewable Target Faces a Test

The manufacturing bottleneck could have implications for India’s broader energy ambitions.

India is targeting 500 GW of non-fossil-fuel electricity capacity by 2030. Solar power is expected to provide a large share of that expansion, with solar capacity projected to rise substantially from its current level.

If domestic solar-cell shortages persist, developers could face higher equipment costs and delays in commissioning new projects.

That could make the transition to renewable energy more expensive and potentially increase reliance on conventional electricity generation while domestic manufacturing catches up.

Higher Costs Could Spread to Solar Projects

The shortage is also creating a cost problem.

Domestic solar panels made with scarce locally produced cells can cost significantly more than panels using Chinese cells. Energy companies could therefore face higher capital expenditure while India’s cell-manufacturing base expands.

Higher project costs could eventually affect electricity tariffs, investment decisions and the pace at which new solar capacity is installed.

For developers operating on tight margins, even temporary increases in equipment costs can change the economics of a project.

Government Faces a Difficult Balancing Act

Indian authorities are attempting to protect domestic manufacturers while avoiding a disruption to the country’s renewable-energy expansion.

The government has already provided some flexibility by extending the domestic-cell requirement to December 2026 for certain projects. Industry representatives, however, argue that broader relief may be needed if cell shortages persist.

At the same time, policymakers want domestic manufacturers to invest aggressively in cell production rather than return to heavy dependence on imported components.

The challenge is finding the right balance between industrial self-reliance and the need to install renewable capacity quickly.

A Larger India-China Technology Contest

The solar-cell shortage reflects a broader economic relationship between India and China.

New Delhi has increasingly sought to build domestic manufacturing capabilities in strategically important sectors, including clean energy, electronics and advanced technology. Beijing, meanwhile, remains a dominant supplier across several global manufacturing chains.

Solar power is particularly sensitive because China has established a powerful position across multiple stages of the photovoltaic supply chain.

India’s current difficulties show that replacing an established international supply chain cannot happen simply by expanding final assembly. It requires domestic capabilities across raw materials, manufacturing equipment, cells, modules and supporting technologies.

The Road Ahead

India’s solar industry is unlikely to abandon its localization strategy, but the immediate supply shortage could force policymakers and manufacturers to adjust the pace of implementation.

The long-term objective remains clear: create a larger domestic clean-energy manufacturing ecosystem while reducing vulnerability to external supply disruptions.

For now, however, the solar industry is confronting an uncomfortable reality. India has rapidly expanded its ability to manufacture solar panels, but the crucial cells inside those panels remain a major weakness.

How quickly that gap can be closed could determine not only the future of India’s solar manufacturing industry but also how smoothly the country advances toward its 2030 clean-energy ambitions.