- Why in news
- On 31 July 2026 the Government approved the Pradhan Mantri Surya Sarovar Yojana (PM-SSY) for 5,000 MW of floating solar with energy storage; PIB explained it on 2 August 2026.
- What it is
- PM-SSY is a central scheme to build floating solar photovoltaic plants on existing reservoirs and industrial ponds, paired with co-located battery storage. It aims to save land and improve grid reliability while building domestic manufacturing of floats, cells, modules and storage.
- Storage
- Storage must be at least two hours, equal to 10,000 MWh, to help states manage peak demand.
- Outlay and period
- ₹5,070 crore, implemented over FY 2026-27 to FY 2030-31.
- Basis
- Based on a National Institute of Solar Energy (NISE) assessment estimating about 102.18 GWp floating solar potential.
- Eligibility
- All States and Union Territories can benefit.
- Target capacity
- 5,000 MW of floating solar with co-located storage of at least two hours, i.e. 10,000 MWh.
- Outlay
- Total outlay is Rs.5,070 crore.
- Timeline
- Projects are sanctioned from FY 2026-27 to FY 2030-31; payments continue up to FY 2032-33.
Don’t confuse with PM-SSY vs PM-KUSUM vs PM Surya Ghar: PM-SSY is floating solar on water bodies with storage; PM-KUSUM covers farm solar pumps and feeder solarisation; PM Surya Ghar is household rooftop solar.
Don’t confuse with PM-SSY vs PM-KUSUM: PM-SSY funds floating solar with storage on water bodies. PM-KUSUM supports solar pumps and farm-linked solar for farmers.
Don’t confuse with FSPV vs ground-mounted solar: Floating solar sits on water bodies and saves land; ground-mounted plants need land.
Schemes: 52 Prelims questions since 2013, 10 in Prelims 2026 alone. They test features, the period and who funds it. In Mains, 33 news-triggered questions, mostly GS3.
Why it matters
- Saves scarce land by using reservoirs and ponds.
- Storage helps meet peak demand and improves grid reliability.
- Supports 500 GW non-fossil target by 2030 and domestic manufacturing.
- Saves scarce land by using reservoirs and industrial ponds.
- Storage strengthens grid reliability by supplying power beyond daylight hours.
- Supports domestic manufacturing, jobs and national climate goals.
Problems
- Floating systems and storage need costly components; domestic supply chains are still developing.
- Impact on reservoir ecology, water use and dam operations needs care.
- Floating solar costs more than ground-mounted plants, and wind, waves and water-level swings raise technical risk.
- Possible effects on water ecology and fisheries, and competing uses of reservoirs.
Way forward
- Do site-wise environmental and technical assessments before awarding projects.
- Link projects to state discoms and transmission planning so storage is used well.
- Do site-specific studies (bathymetry, environment) before sanction and set clear norms for use of water bodies.
- Build local supply chains for floats, cells and storage, and monitor performance after commissioning.
Put in your answer
Solar growth: Solar capacity rose from about 3 GW in 2014 to 162.15 GW by 30 June 2026.
Panchamrit: At COP26 India announced 500 GW non-fossil capacity by 2030 and net-zero by 2070.
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UPSC’s own questions that come close to this issue, from our Prelims and Mains banks.
Prelims practice · Statements
Ours, not from a UPSC paper
Consider the following statements:
- 1.The Pradhan Mantri Surya Sarovar Yojana aims to support 5,000 MW of floating solar projects with co-located energy storage.
- 2.The scheme requires co-located energy storage of a minimum of four hours.
- 3.All States and Union Territories are eligible to benefit under the scheme.
Which of the statements given above is/are correct?
True or false?
1 of 13
Statements the way Prelims prints them. Say first, then see the fact.
1.PM-SSY aims to support 5,000 MW of floating solar projects with co-located energy storage.
True. Target is 5,000 MW of FSPV with ESS.
2.The scheme requires energy storage of a minimum of four hours.
False. Minimum storage is two hours (10,000 MWh).
3.The scheme will be implemented from FY 2026-27 to FY 2030-31 with an outlay of ₹5,070 crore.
True. ₹5,070 crore over five years from FY 2026-27.
4.Only states with large reservoirs are eligible under the scheme; Union Territories are excluded.
False. All States and Union Territories are eligible.
5.The scheme is based on a potential assessment by the National Institute of Solar Energy.
True. NISE assessment estimated about 102.18 GWp floating solar potential.
6.India's floating solar capacity before the scheme is about 5,000 MW.
False. Current level is around 700 MW; the scheme adds 5,000 MW.
7.The Solar Parks Scheme was initially launched with a 20 GW target and later expanded to 40 GW in 2017.
True. 20 GW expanded to 40 GW in 2017.
8.The Central Financial Assistance is released in advance, before the projects are commissioned.
False. CFA is given after successful commissioning.
9.The scheme targets 5,000 MW of floating solar with co-located storage of at least two hours.
True. 5,000 MW with minimum two-hour storage (10,000 MWh).
10.Projects under the scheme will be sanctioned only in FY 2026-27, with no later sanctions.
False. Sanctions run from FY 2026-27 to FY 2030-31; disbursement continues to FY 2032-33.
11.The scheme's launch follows a National Institute of Solar Energy assessment of floating solar potential.
True. NISE estimated about 102.18 GWp potential.
12.The scheme is limited to a few selected States with large reservoirs.
False. All States and Union Territories can benefit.
13.The scheme's CFA of up to Rs.50 lakh per project can be used for feasibility work such as bathymetry and hydrography assessments.
True. Up to Rs.50 lakh per project for feasibility and preparatory studies.
Written by us from the release, not by UPSC; checked by a second model.
Mains practice
10 marks · 150 words
The Government has approved the Pradhan Mantri Surya Sarovar Yojana to support 5,000 MW of floating solar projects with co-located energy storage on reservoirs and industrial ponds. Discuss the significance of the scheme for India's energy transition and examine the challenges in implementing floating solar with storage at scale.
Worth revising until Prelims 2028: most news questions come within two years of the event.