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India has immense potential of solar energy though there are regional variations in its development. Elaborate.
Approach · directive: “elaborate”
What it asks · Describe India's large solar potential, and explain why development is uneven across States: resource, land, grid, policy and finance.
It asks 3 things — answer each
- Elaborate: India's immense solar potential and the push to develop it
- Elaborate: the regional variations in development and their causes
- Indicate how development can be spread more evenly
Open with · India lies largely in the tropical sun belt, and NISE puts its solar potential at 748 GWp; yet installed capacity clusters in a few western and southern States.
Cover
- Potential: NISE estimate of 748 GWp, led by Rajasthan (about 142 GWp), Jammu and Kashmir (111), Maharashtra and Madhya Pradesh.
- Policy push: National Solar Mission (2010), solar parks, reverse auctions, PM-KUSUM (2019) and the International Solar Alliance (2015).
- Growth: cumulative solar capacity of 171.05 GW by 30 September 2026 (MNRE).
- Concentration: Rajasthan held about 27% (36 GW) and Gujarat 24.8 GW of installed solar in November 2025; Punjab and Tripura have small potentials.
- Causes: insolation and cloud, cheap barren land, grid and evacuation lines, State policy and distribution-company finances.
- Way forward: rooftop solar, solar pumps, agrivoltaics, floating solar, Green Energy Corridors, storage and inter-State trade.
Close with · Spreading solar from the Thar parks to rooftops and farm pumps everywhere turns a desert-led boom into nationwide energy security, in line with SDG 7 (affordable and clean energy).
Add value (verified)
- The Government's official figure, given in February 2024, is a solar potential of 748 GWp assessed by NISE from Waste Land Atlas data, with a State-wise table showing Rajasthan far ahead.Ministry of New and Renewable Energy — India's solar energy potential is estimated to be 748 GWp (PIB, 7 February 2024) ↗“India’s total solar energy potential has been estimated to be 748 GWp (Giga Watt peak), as estimated by National Institute of Solar Energy (NISE), on the basis of the data from Waste Land Atlas of India 2010.”
- MNRE's physical progress page records cumulative solar capacity of 171,051.46 MW (171.05 GW) as on 30 September 2026.Physical Progress — Ministry of New and Renewable Energy ↗“Cumulative Achievements (as on 30.09.2026) Installed RE Capacity (Capacities in MW) Solar Power* 3011.41 20790.76 171051.46”
- MNRE's state-wise table (as on 30 September 2026) gives Rajasthan 45,121.44 MW of solar, the largest of any State (about 26% of the 171,051.46 MW national total).State-wise (Location based) installed capacity of Renewable Power as on 30.09.2026 — MNRE (linked from mnre.gov.in/en/physical-progress) ↗“Rajasthan 39363.10 2315.60 2568.30 874.44 45121.44”
- The same table gives Gujarat 36,234.55 MW of solar, second to Rajasthan.State-wise (Location based) installed capacity of Renewable Power as on 30.09.2026 — MNRE (linked from mnre.gov.in/en/physical-progress) ↗“Gujarat 25902.07 8525.10 1606.86 200.53 36234.55”
- NISE's State-wise solar potential table (in MW) gives Jammu and Kashmir 111,050 MW.India’s solar energy potential is estimated to be 748 GWp — PIB, Ministry of New and Renewable Energy (7 Feb 2024) ↗“10 Jammu & Kashmir 111050 11 Jharkhand 18180”
- The same table gives Punjab only 2,810 MW of solar potential against Rajasthan's 142,310 MW.India’s solar energy potential is estimated to be 748 GWp — PIB, Ministry of New and Renewable Energy (7 Feb 2024) ↗“21 Punjab 2810 22 Rajasthan 142310”
- Tripura's estimated solar potential is 2,080 MW, among the smallest of the States.India’s solar energy potential is estimated to be 748 GWp — PIB, Ministry of New and Renewable Energy (7 Feb 2024) ↗“26 Tripura 2080 27 Uttar Pradesh 22830”
Question: UPSC's CS (Main) 2020, GS Paper I — paper ↗. Approach: Minimalist IAS, checked 16 Oct 2026 (how we verify) — UPSC publishes no model answers. ·
Model answer· 370words · Minimalist IAS
India lies largely in the tropical sun belt, and the National Institute of Solar Energy (NISE) puts its solar potential at 748 GWp. Yet capacity clusters in a few western and southern States, because development depends on far more than sunshine.
Immense solar potential
- Resource base: NISE's estimate, drawn from wasteland data, gives Rajasthan about 142 GWp, Jammu and Kashmir 111 GWp, and Maharashtra and Madhya Pradesh over 60 GWp each.
- Policy push: the National Solar Mission (2010), solar parks, reverse auctions, PM-KUSUM (2019) for farmers and the International Solar Alliance (2015).
- Growth: since then, cumulative solar capacity has reached 171.05 GW (MNRE, 30 September 2026), up from a small base when the Mission began.
Regional variations in development
- Concentration: MNRE's state-wise data for 30 September 2026 show Rajasthan alone with about 45.1 GW (26%) of installed solar and Gujarat second at 36.2 GW.
- Mega parks: Bhadla (Rajasthan), Pavagada (Karnataka), Kamuthi (Tamil Nadu) and Kurnool (Andhra Pradesh) anchor the western and southern belt.
- Laggards: the North-East, hill States and the Gangetic plain trail; NISE gives Punjab only 2.8 GWp and Tripura 2.1 GWp.
✏️ Map to sketch in the exam · Where India's solar potential and capacity lie
- Shade: Rajasthan, Gujarat = most installed solar capacity (MNRE data, 30 Sept 2026)
- Shade: Jammu and Kashmir, Ladakh = large estimated potential (NISE)
- Shade: Punjab, Tripura = small estimated potential (NISE)
Draw on India's official outline (Survey of India boundary).
Why development is uneven
- Insolation and climate: cloud, a long monsoon, dust and haze cut yields; the Thar pairs strong sun with clear skies.
- Land: cheap barren land abounds in Rajasthan and Gujarat but is scarce in densely farmed plains and forested hills.
- Grid reach: evacuation lines serve the big western parks, while the Himalayan potential lies far from load centres and transmission.
- Policy and finance: State land banks and solar policies draw investors; financially weak distribution companies delay payments and deter them.
Way forward
- Distributed solar: rooftop systems and PM-KUSUM pumps for land-scarce States; agrivoltaics and floating solar on reservoirs.
- Grid and storage: Green Energy Corridors, battery storage and inter-State trade so that sunny States can serve the rest.
Spreading solar from the Thar parks to rooftops and farm pumps everywhere turns a desert-led boom into nationwide energy security, in line with SDG 7 (affordable and clean energy).
Prepared by Minimalist IAS to the answer standard of Shivam Singh (mentor, 7 years) · facts checked against official sources (how we verify) · updated 16 Oct 2026. UPSC publishes no model answers: compare your structure and coverage with this, then write your own.
