Why Invest in Solar Power in India

Last updated 18 October 2026 · By Pradeep Kumar, India Solar

In short: India is one of the fastest-growing solar markets in the world, backed by a 500 GW clean-power target for 2030 and record build-out. Operating plants sell power for up to 25 years at fixed tariffs, foreign investors may own them outright, and utilities now pay far more reliably than a few years ago. Returns depend on price, generation, payment and the rupee, so the risks need weighing too.

1. Demand that keeps growing

India's power demand is rising with its economy, and the government has set clean power at the centre of meeting it: 500 GW of non-fossil capacity by 2030, and net zero by 2070. Non-fossil sources already passed half of installed capacity in June 2025, five years ahead of target, and a record 44.61 GW of solar was added in 2025-26.

Even so, non-fossil sources produced only about 29% of electricity in 2025-26, because coal plants run more hours. That gap is why demand for clean power, and for plants already producing it, keeps growing.

2. Contracted, rupee-fixed revenue

Grid-connected solar plants usually sell their output under a power purchase agreement (PPA) of about 25 years at a tariff fixed in rupees. Solar and wind have must-run status, so their power is taken first. For a plant that is already running, revenue depends mainly on how much it generates and whether the buyer pays on time, not on market prices.

Buyers range from central agencies such as SECI and NTPC, backed by letters of credit and a Centre–state–RBI payment agreement, to state utilities and large companies.

3. Utilities pay far more reliably than before

Late payment by state utilities was the sector's biggest problem. Since the Late Payment Surcharge Rules 2022, utilities' overdue legacy payments to generators fell from ₹1,39,947 crore in June 2022 to ₹3,330 crore in March 2026 (as reported). Each utility still needs checking: we review the payment record of every plant before you buy.

4. Open to foreign owners

Foreign investors may own 100% of an Indian power generation company under the automatic route, with no government approval, except where beneficial owners are in countries sharing a land border with India. Profits come home as dividends or interest after Indian tax, at treaty rates of 5–15% on dividends for most of our investors' countries.

5. Policy built for the long term

₹24,000 crore production-linked incentive for solar module factories, and about 172 GW of module manufacturing capacity by March 2026.
Renewable tenders of 50 GW a year planned to 2027-28, and a renewable purchase obligation of 35.95% for utilities in 2026-27.
PM Surya Ghar (₹75,021 crore) and PM-KUSUM (₹34,422 crore) for rooftops and farms.
Plants commissioned by 30 June 2025 keep a full waiver of inter-state transmission charges, an advantage newer plants do not get.

6. Why buy a running plant rather than build

Most losses in Indian solar happen before a plant switches on: land, permits, grid connection and construction. A running plant has passed those stages and has years of meter readings and payment records to check. It earns from the day you buy it.

The risks to weigh

Currency: income is in rupees, which has weakened about 3.7% a year against the US dollar on average over 10 and 20 years.
Price: paying too much per MW is the fastest way to a poor return.
Generation: soiling, degradation, grid outages and curtailment.
Payment: some state utilities still pay late.
Regulation: rule changes and occasional attempts to renegotiate older high tariffs.
Returns are not fixed or guaranteed; equity returns vary with all of the above.

See Returns and risks for how price, tariff and the exchange rate change the return, and the due-diligence checklist for what we check on every plant.

Sources

General information only, not investment, legal or tax advice. Rules change and depend on your circumstances; take advice before you act. India Solar does not offer securities or guarantee returns.