₹14,500-crore viability gap for 92 GWh grid energy storage
The Union Cabinet has approved ₹14,500 crore of Viability Gap Funding for grid-scale energy storage. It will support 92 GWh of storage from 2026-27 to 2030-31. The goal is to store solar and wind power for use after sunset or when wind drops. Read it to revise pumped-storage hydro, batteries and Viability Gap Funding.
- Support
- ₹14,500 crore VGF
- New storage
- 92 GWh
- Mix
- 60 pumped hydro, 30 batteries, 2 new tech
- Target
- 411 GWh by 2031-32
Grid storage plan: what happened?
Solar power peaks at noon, but homes need the most power after dark. Storage is the bridge between the two.
- The Cabinet approved ₹14,500 crore of Viability Gap Funding for grid-scale storage.
- It will support 92 GWh between 2026-27 and 2030-31: 60 GWh pumped hydro, 30 GWh battery storage and 2 GWh emerging technologies.
- Total project cost is about ₹97,600 crore.
- Projects will be given through tariff-based competitive bidding.
- Battery projects must meet a 40% domestic content requirement.
Why does India need energy storage?
Solar and wind power are variable: they fall when the sun sets or the wind drops.
Pumped-storage hydro pumps water uphill when power is cheap and releases it through turbines when power is needed. Battery energy storage systems (BESS) store power in batteries.
Viability Gap Funding is a one-time grant that fills the gap between a project’s cost and what tariffs can pay, so private investors find it worth building.
Storage mix
| Type | Capacity |
|---|---|
| Pumped-storage hydro | 60 GWh |
| Battery storage (BESS) | 30 GWh |
| Emerging technologies | 2 GWh |
| Total | 92 GWh |
Which laws and Articles apply?
- Electricity Act, 2003: framework for power generation and supply.
- Viability Gap Funding: grant support for infrastructure that is not viable on tariffs alone.
- Panchamrit target: 500 GW non-fossil capacity by 2030.
- Make in India: 40% domestic content for battery projects.
Why does grid energy storage matter?
| Angle | What to note |
|---|---|
| Energy transition | Makes solar and wind reliable. |
| Grid stability | Balances supply and demand. |
| Industry | Boosts battery manufacturing at home. |
| Climate | Cuts need for coal at peak hours. |
What are the problems with grid energy storage?
- Pumped hydro needs land and water and can face local protests.
- Battery minerals like lithium are mostly imported.
- Discoms are often financially weak.
- Battery recycling rules need strengthening.
What should be done next on grid energy storage?
- Fast-track approvals for pumped hydro sites.
- Secure critical minerals abroad and at home.
- Build battery recycling capacity.
- Reform discom finances.
What can Prelims ask on grid energy storage?
Prelims probability: High: a large new Viability Gap Funding figure (₹14,500 crore, 92 GWh) on energy storage, a theme UPSC asks about often, with pumped storage as a static hook.
- Pumped-storage hydro: long-duration storage.
- BESS: battery energy storage systems.
- VGF: grant to make projects viable.
- 92 GWh supported from 2026-27 to 2030-31.
- Target: 411 GWh storage by 2031-32.
How to write about grid energy storage in Mains
Practice question (15 marks, 250 words): Energy storage is key to India’s clean energy transition. Discuss with reference to the new Viability Gap Funding scheme.
- Intro: Cabinet approval.
- Why storage: variable renewables.
- Scheme features: mix, VGF, domestic content.
- Challenges: minerals, land, discoms.
- Conclusion: storage makes green power round-the-clock.
Ready lines for your answer
- Green power becomes reliable only when it can be stored.
- Storage is the battery of India's energy transition.
Quotable data point92 GWh of storage backed by ₹14,500 crore VGF.
Photo: Kecko from Eastern Switzerland, CC BY 2.0, via Wikimedia Commons
Exam angle
Prelims: pumped hydro, BESS, VGF. · Mains GS-III: energy transition.
Practice MCQs
Original practice questions (not PYQs).
Pumped-storage hydropower is appropriately discussed as a form of:
Answer (d) & explanation
UPSC Prelims 2024 linked pumped-storage hydropower to long-duration energy storage.
Consider the following statements:
1. The Cabinet-approved VGF for grid storage is ₹14,500 crore.
2. The scheme supports 92 GWh of storage capacity.
3. Battery projects under the scheme face a 40% Domestic Content Requirement.
How many of the above statements are correct?
Answer (c) & explanation
All three statements are correct (PIB 2332474).
Questions students ask about this
How much VGF has been approved?
₹14,500 crore.
How much storage will it support?
92 GWh: 60 GWh pumped hydro, 30 GWh batteries and 2 GWh emerging technologies.
What is Viability Gap Funding?
A grant that fills the gap between a project's cost and what its tariffs can pay.
What is the storage target by 2031-32?
411 GWh of grid-scale storage.