Floating solar scheme approved as India's solar capacity crosses 162 GW

The brief in 8 cards

1. Context1 / 8
   • The Press Information Bureau (PIB) has published a backgrounder titled "India's Solar Growth Enters a New Era".
   • It reports that the government approved the Pradhan Mantri Surya Sarovar Yojana (PM-SSY) on 31 July 2026.
   • The scheme will place solar panels on water bodies and add energy storage to them.
   • The backgrounder also traces a decade of growth. Installed solar capacity rose from about 3 GW in 2014 to 162.15 GW by 30 June 2026.
   • Solar now makes up the largest share of India's renewable energy capacity.
2. Key highlights2 / 8

   The target: PM-SSY will support 5,000 MW of floating solar projects. Each will have energy storage on the same site.

   The storage: The storage must run for at least two hours. That adds up to 10,000 MWh, to help States meet peak demand.

   Money and time: The outlay is ₹5,070 crore, from 2026–27 to 2030–31. All States and Union Territories can take part.

   No new land needed: Panels will sit on existing reservoirs and industrial ponds. This eases pressure on scarce land.

   Room to grow: The National Institute of Solar Energy estimates India's floating solar potential at about 102.18 GWp. Current floating capacity is only about 700 MW.

   Expected gains: The government expects about 10 million tonnes less CO₂ each year and 16,000–17,000 full-time jobs. These are projections, not results.

3. Key concepts3 / 8
   1. Floating solar photovoltaics (FSPV)

   • Photovoltaic (PV) panels turn sunlight directly into electricity. Floating solar mounts these panels on floats anchored in a lake, reservoir or pond.
   • Think of it as a solar farm built on a raft instead of on a field.
   • The water beneath cools the panels, and cooler panels work more efficiently. The panels also shade the water, which cuts evaporation.
   • GWp (gigawatt-peak) is a panel's maximum output under ideal test conditions. Real output is usually lower.

   News connection: PM-SSY uses reservoirs as ready-made "land", so no farms or forests need to be cleared.

   2. Energy storage: MW versus MWh

   • Megawatt (MW) measures power: how fast electricity flows. Megawatt-hour (MWh) measures energy: how much electricity is stored or used.
   • Analogy: MW is how fast water pours from a tap. MWh is how much water the tank holds.
   • A 5,000 MW storage system that runs for two hours holds 5,000 × 2 = 10,000 MWh.
   • Why it matters: solar peaks at noon, but demand often peaks in the evening. Storage works like a refrigerator for electricity. It keeps noon's surplus for the evening.

   News connection: PM-SSY's two-hour storage rule is meant to carry solar power into peak demand hours.

   3. Installed capacity versus actual generation

   • Installed capacity is the most a plant could produce at full output. Generation is what it actually produces over time.
   • Analogy: a bus has 50 seats, but it does not carry 50 passengers on every trip.
   • Solar panels produce nothing at night and less on cloudy days. So a solar plant's yearly output is well below its capacity.
   • Capacity utilisation factor (CUF) measures this gap. It is actual output as a share of maximum possible output.

   News connection: The 162.15 GW figure is capacity. It does not tell us how much electricity solar actually supplied.

   4. Renewable Purchase Obligation (RPO)

   • An RPO requires electricity distribution companies and other obligated buyers to buy a set share of power from renewable sources.
   • Analogy: it is like a rule that a set share of a canteen's stock must come from local farms. Suppliers know buyers are guaranteed.
   • This certainty makes investors willing to fund new solar projects.
   • The RPO path has been notified up to 2029–30. The target for 2026–27 is 35.95%.

   News connection: The backgrounder names RPOs as one of the demand drivers behind India's solar growth.

4. Way forward4 / 8

   Study the water first: Check each reservoir's effect on fish, water quality and dam safety before installing panels.

   Pair every gain with storage: Extend the storage-first approach beyond floating solar, so evening demand does not fall back on coal.

   Build the grid in step: Expand transmission alongside new capacity, so power from sunny regions reaches cities without being wasted.

5. Note5 / 8

   India's solar decade in numbers

   2010: The National Solar Mission began and set long-term capacity targets.

   2014–15: Capacity stood at about 3 GW. The Solar Parks Scheme started in December 2014. In July 2015, the solar target was raised to 100 GW.

   2021: At COP26 in Glasgow, India announced its Panchamrit goals. They include 500 GW of non-fossil capacity by 2030 and net-zero emissions by 2070.

   FY 2025–26: India added a record 44.61 GW of solar, nearly double the 23.83 GW added in 2024–25.

   Where the capacity sits: Large projects account for 118.79 GW. Rooftop systems add 27.88 GW. Hybrid and off-grid systems make up the rest.

   Read the dates carefully: The PIB says India added 37 GW in calendar year 2025, overtaking the US in annual additions. The 44.61 GW figure covers the financial year, April 2025 to March 2026. Different periods give different totals.

6. Note6 / 8

   How big solar got cheap

   Solar parks: A solar park is like an industrial estate for solar power. Land, roads and transmission lines are ready, so developers only bring panels.

   Scale today: As of February 2026, 54 solar parks with 39,188 MW of capacity have been approved. Gujarat leads by sanctioned capacity. Rajasthan leads by number of parks.

   Bhadla, Rajasthan: The park covers about 5,700 hectares with 2,245 MW installed. It was built in phases from 2015 to 2020.

   Reverse auctions: In an ordinary auction, buyers bid prices up. In a reverse auction, sellers compete to offer the lowest price. The Solar Energy Corporation of India runs many of these e-Reverse Auctions.

   Falling tariffs: Solar tariffs fell from around ₹18 per unit in 2010 to ₹2.44 at a Bhadla auction in 2017. In 2025, the PIB puts India's utility solar cost at USD 35 per MWh, below the USD 44 global average.

   Green Energy Corridor: This programme builds dedicated transmission lines, like highways that carry green power from sunny areas to cities. By February 2026, it had enabled 24,567.8 MW to reach the grid.

7. Note7 / 8

   Solar for homes and farms

   PM Surya Ghar: Muft Bijli Yojana: Launched on 13 February 2024 with ₹75,021 crore. Households get subsidies and collateral-free loans for rooftop solar.

   Reach so far: Over 43 lakh households had rooftop solar as of June 2026. Over 7.7 lakh households had zero electricity bills as of 9 December 2025.

   PM-KUSUM: Launched in 2019, it helps farmers run irrigation pumps on solar power. Farmers can also sell surplus power to distribution companies, where eligible.

   Farm results: Nearly 11.49 lakh standalone solar pumps have been installed. Over 21.77 lakh farmers have benefited, the PIB reports.

   Small is growing fast: In 2025–26, distributed solar supplied 16.3 GW, or 36% of new solar capacity. PM-KUSUM added 7.6 GW and rooftop solar 8.7 GW.

8. Note8 / 8

   Making panels at home and leading abroad

   Manufacturing jump: Solar module manufacturing capacity grew from 2.3 GW in 2014 to about 172 GW by 31 March 2026.

   PLI scheme: The Production Linked Incentive scheme for high-efficiency modules began in 2021. It rewards companies with payments linked to what they produce in India.

   ALMM: The Approved List of Models and Manufacturers (2019) works like an approved-supplier list. Only listed panels qualify for government-supported projects.

   International Solar Alliance (ISA): India and France co-founded it at COP21 in Paris in 2015. It helps member countries share solar technology and finance.

   One Sun One World One Grid: India proposed this idea of a global renewable grid in 2018. In 2021, India and the UK launched the Green Grids Initiative to advance it.

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