Every solar EPC owner in India faces the same question when expanding to a new state: where does the subsidy stack make the strongest selling proposition for my customer? The answer isn't just about the central PM Surya Ghar grant, it's about the combination of that central grant, the state government's own top-up, the net-metering buyback rate, DISCOM approval speed, and the effective subsidy as a percentage of total project cost.
Key takeaway
The State Subsidy Score ranks India's top 10 solar states by combining three inputs: the PM Surya Ghar central grant as a % of project cost, the state government top-up (if any), and the DISCOM net-metering buyback rate. Gujarat, Delhi, and Rajasthan consistently rank in the top three for residential EPC opportunity in 2026.
This guide introduces the State Subsidy Score, a three-input ranking framework for comparing solar market attractiveness across Indian states. It uses publicly available data from MNRE, state regulatory commissions, and energy departments to produce a table every EPC business can use for expansion decisions.
Read this alongside our state-specific guides: Karnataka solar EPC guide, Rajasthan solar EPC guide, UP solar EPC guide, and Delhi NCR solar EPC guide.
The State Subsidy Score, the named framework
The State Subsidy Score (SSS) is a composite score built from three equally-weighted inputs, each scored 1–10:
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Input 1, Central grant as % of project cost (on a 3 kW system)
PM Surya Ghar provides ₹78,000 on 3 kW nationally. The effective % varies by state installation cost, where EPCs charge less per watt, the grant covers a higher share. Score: ₹78,000 ÷ state-average 3 kW project cost × 100. States with lower installed cost = higher score.
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Input 2, State top-up subsidy (%)
Some states offer additional grants or subsidies on top of the central PM Surya Ghar grant. Gujarat and AP are the current leaders. States with no top-up score 1; states with 10%+ additional grant score 10.
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Input 3, Net metering buyback rate and DISCOM approval speed
A higher buyback rate (₹4+ per unit) and a faster DISCOM approval process (under 45 days end-to-end) both increase the effective economic value of solar to the consumer. States with high buyback + fast DISCOMs score 10; states with low buyback + slow DISCOMs score 1.
The SSS is not a scientific index, it is a practical decision tool for EPC owners weighing state expansion. It is calculated using Q1 2026 data from state electricity regulatory commissions, MNRE guidelines, and DISCOM benchmarks. See the state top-up subsidies guide for the underlying data used in Input 2. The PM Surya Ghar national portal publishes state-wise installation progress data updated monthly, a useful primary source for tracking which states are fastest converting consumer registrations to completed installations.
Top 10 Indian states for solar subsidies, the master table
| Rank | State | PM Surya Ghar central grant (3 kW) | State top-up | Net metering buyback | Total effective subsidy % | EPC opportunity score |
|---|---|---|---|---|---|---|
| 1 | Gujarat | ₹78,000 | ₹10,000–₹40,000 state add-on | ₹3.50–₹4.50/unit | 55–65% | 9.5/10 |
| 2 | Delhi | ₹78,000 | Mukhyamantri Solar Yojana (eligible) | ₹3.00–₹4.00/unit | 42–55% | 9.2/10 |
| 3 | Rajasthan | ₹78,000 | None (central only) | ₹3.70–₹4.20/unit | 40–48% | 8.8/10 |
| 4 | Andhra Pradesh | ₹78,000 | AP Solar Policy add-on (category-wise) | ₹3.50–₹4.00/unit | 43–52% | 8.5/10 |
| 5 | Karnataka | ₹78,000 | None (central only) | ₹3.50–₹4.00/unit | 39–47% | 8.4/10 |
| 6 | Maharashtra | ₹78,000 | MSEDCL net metering credit system | ₹3.50–₹4.20/unit | 39–46% | 8.2/10 |
| 7 | Tamil Nadu | ₹78,000 | CM Solar Scheme (state scheme) | ₹3.00–₹3.50/unit | 38–46% | 8.0/10 |
| 8 | Uttar Pradesh | ₹78,000 | None (central only) | ₹2.50–₹3.00/unit | 37–43% | 7.8/10 |
| 9 | Haryana | ₹78,000 | HAREDA scheme (category-wise) | ₹3.00–₹3.50/unit | 38–44% | 7.6/10 |
| 10 | Madhya Pradesh | ₹78,000 | MPUVNL scheme (select categories) | ₹2.80–₹3.20/unit | 36–42% | 7.2/10 |
Note. "Total effective subsidy %" is calculated as (PM Surya Ghar central grant + state top-up) ÷ state-average 3 kW installed cost × 100. Net metering buyback rate affects economic value separately. Sources: MNRE 2024 guidelines, state SERC tariff orders FY 2024–25, DISCOM benchmark data 2025.
State-by-state breakdown, what drives each ranking
Rank 1: Gujarat, India's solar subsidy leader
Gujarat is India's top-ranked state for solar EPC opportunity in 2026 by a clear margin. Three things make it the leader. First, Gujarat has both the PM Surya Ghar central grant and a state-level additional grant administered through GEDA (Gujarat Energy Development Agency), the state top-up can run ₹10,000–₹40,000 depending on system size and consumer category, pushing the total effective subsidy to 55–65% of project cost. Second, Gujarat's DISCOM landscape (DGVCL, MGVCL, UGVCL, PGVCL, and GETCO for large consumers) is among the more digitised in India, DGVCL in South Gujarat processes net-metering applications in 25–40 days end-to-end. Third, Gujarat's installed-cost benchmark is among the lowest in India due to proximity to Surat's module and inverter supply chain, lower cost means the fixed ₹78,000 central grant covers a higher percentage of the project.
According to MNRE's PM Surya Ghar progress dashboard, Gujarat consistently ranks among the top three states for PM Surya Ghar consumer registrations and installations as of Q1 2026.
₹ math (Gujarat). A 3 kW system in Gujarat costs approximately ₹1.60–₹1.80 L installed. PM Surya Ghar grant: ₹78,000. GEDA state top-up: ~₹20,000. Total subsidy: ₹98,000. Consumer net outlay: ₹62,000–₹82,000. At DGVCL tariff (~₹5–₹7/unit) and 360 units/month generation, payback under 3 years.
Rank 2: Delhi, high tariffs + Mukhyamantri scheme
Delhi's second-place ranking comes primarily from the tariff effect, not the subsidy quantum. BSES and Tata Power DDL's top-slab residential tariffs (₹8–₹9/unit) mean the annual energy savings from a 3 kW system run ₹35,000–₹42,000. This compresses payback to 2.5–3.5 years, faster than most other states even with the same central grant. The Delhi Mukhyamantri Solar Yojana provides an additional state layer for eligible consumers. Full analysis in the Delhi NCR solar EPC guide.
DERC's net-metering regulations are among the more consumer-friendly in India. Tata Power DDL's 15–30 day feasibility timeline is one of the fastest among large Indian DISCOMs.
Rank 3: Rajasthan, irradiance as a subsidy substitute
Rajasthan's third-place ranking reflects the fact that its extraordinary solar irradiance (5.8–6.2 kWh/m²/day, highest in India) functions as a de-facto additional "subsidy" by increasing system output. A 3 kW system in Jodhpur generates 450 units/month versus 360 in Bengaluru, that 25% extra generation reduces payback period by 1–1.5 years. With no state top-up on PM Surya Ghar, Rajasthan ranks below Gujarat, but the irradiance advantage keeps it in third place. See the full analysis in our Rajasthan solar EPC guide and the state top-up subsidies overview.
Rajasthan's Energy Department has set a 90 GW renewable target by 2030 under the Rajasthan Solar Energy Policy 2019 (extended), ensuring policy stability for EPC businesses.
Rank 4: Andhra Pradesh, state solar policy boosts the stack
Andhra Pradesh has undergone policy fluctuations over the past three years but the AP Solar Policy (revised) now provides category-wise additional benefits for residential consumers on top of PM Surya Ghar. APEPDCL (Eastern DISCOM) and APSPDCL (Southern DISCOM) both have functional net-metering portals. AP's buyback rate (₹3.50–₹4.00/unit, per APERC orders) is competitive. The state's political environment around energy policy has stabilised post-2024 elections, making AP a stronger expansion candidate for EPCs than it was in 2022–23.
Rank 5: Karnataka, high tariffs, BESCOM speed, no state top-up
Karnataka's BESCOM tariffs (₹7–₹9.35/unit in upper slabs) create one of South India's strongest payback cases. The absence of a state top-up subsidy is the primary reason Karnataka ranks fifth rather than second or third. BESCOM's online net-metering portal remains the fastest in South India. Full analysis in the Karnataka solar EPC guide.
KERC's net-metering framework and KREDL's vendor empanelment system provide the institutional infrastructure that gives Karnataka's EPC market its stability.
Ranks 6–7: Maharashtra and Tamil Nadu
Maharashtra's MSEDCL (Maharashtra State Electricity Distribution Company Ltd) serves the largest consumer base of any single Indian DISCOM. MSEDCL's net-metering regulations are well-documented, see the MSEDCL net-metering guide for the detailed process. Maharashtra's buyback rate (₹3.50–₹4.20/unit under MERC orders) is competitive. The state doesn't have a formal top-up comparable to Gujarat's GEDA scheme, but MSEDCL's billing credit system functions as an effective economic enhancer.
Tamil Nadu's CM Solar Scheme provides a state-level component that supplements PM Surya Ghar. TANGEDCO's net-metering process is functional but has historically been slower than BESCOM or MSEDCL in urban areas. The state's 4,000+ MW of annual new solar capacity target under TNERC orders provides strong policy backing.
Ranks 8–10: Uttar Pradesh, Haryana, and Madhya Pradesh
UP ranks eighth despite having India's largest addressable market. The lower ranking comes from two factors: the lowest net-metering buyback rate in this list (₹2.50–₹3.00/unit) and the slower UPPCL approval process. However, UP's sheer scale, 2.5 crore+ PM Surya Ghar eligible households, means even with a weaker subsidy stack, the absolute volume opportunity is enormous. Full analysis in the UP solar EPC guide.
Haryana scores 7.6 primarily because DHBVN (Gurugram, Faridabad) and UHBVN (Ambala, Hisar) have decent approval speeds and HAREDA provides a category-wise state benefit layer. Madhya Pradesh rounds out the top 10, a market with significant untapped potential but currently limited by a relatively slow DISCOM infrastructure and lower residential tariffs.
DISCOM approval time comparison, which states are fastest
Approval speed matters because it directly affects your cash-flow cycle, the longer the DISCOM takes to commission the net meter, the longer it takes to upload the commissioning certificate, and the longer until the PM Surya Ghar subsidy hits the consumer's account. Slow approvals also increase customer anxiety and cancellation risk.
| State / DISCOM | Feasibility | Commissioning | End-to-end | Portal quality |
|---|---|---|---|---|
| Tata Power DDL (Delhi) | 15–30 days | 25–45 days | 40–75 days | Excellent |
| DGVCL (Gujarat) | 15–25 days | 20–40 days | 35–65 days | Excellent |
| BESCOM (Karnataka) | 15–30 days | 30–45 days | 45–75 days | Good |
| BSES Rajdhani (Delhi) | 20–35 days | 30–50 days | 50–85 days | Good |
| MSEDCL (Maharashtra) | 20–35 days | 35–55 days | 55–90 days | Good |
| JVVNL (Rajasthan) | 20–35 days | 30–50 days | 50–85 days | Moderate |
| UPPCL, MVVNL (UP) | 20–35 days | 30–50 days | 50–85 days | Moderate |
| TANGEDCO (Tamil Nadu) | 25–45 days | 40–60 days | 65–105 days | Moderate |
For a deeper dive on approval times, see the DISCOM approval time benchmark guide.
Which states have the fastest DISCOM approval for solar EPCs
Based on the Q1 2026 benchmark data above, Gujarat (DGVCL) and Delhi (Tata Power DDL) tie for fastest DISCOM approvals in the country at 35–75 days end-to-end. BESCOM (Bengaluru) follows at 45–75 days. The fastest approvals matter most for EPCs managing high project volumes, every 15 days saved per project means roughly 2 more installation cycles per field team per year.
Fast tip. When pitching multi-state EPCs on choosing QuickEstimate, highlight that proposal delivery speed (60 seconds on-site) is the variable your team controls, DISCOM approval speed is not. The faster you send the proposal, the more deals you close before the DISCOM process even starts.
State-wise net metering buyback, who pays EPCs' customers the most for surplus units
The net-metering buyback rate directly affects consumer ROI for systems generating a surplus, and affects your sizing recommendation to consumers.
| State | Regulator | Buyback rate (approx.) | Retail tariff (top slab) | Self-consumption value |
|---|---|---|---|---|
| Gujarat | GERC | ₹3.50–₹4.50/unit | ₹5.50–₹7.00/unit | High |
| Delhi | DERC | ₹3.00–₹4.00/unit | ₹8.00–₹9.00/unit | Very high |
| Rajasthan | RERC | ₹3.70–₹4.20/unit | ₹6.00–₹8.00/unit | High |
| Karnataka | KERC | ₹3.50–₹4.00/unit | ₹7.00–₹9.35/unit | Very high |
| Maharashtra | MERC | ₹3.50–₹4.20/unit | ₹7.00–₹10.00/unit | Very high |
| Uttar Pradesh | UPERC | ₹2.50–₹3.00/unit | ₹5.50–₹7.50/unit | Moderate |
For a deep-dive on how net metering works across DISCOMs, see what is net metering and how to apply net metering in India. For more on the net metering DISCOM list.
Pros and cons of using the State Subsidy Score for EPC expansion decisions
Pros
- ✓Combines three inputs (subsidy, top-up, buyback) into a single comparable score
- ✓Uses publicly available regulator and government data
- ✓Forces explicit accounting for state top-up, often missed in simple comparisons
- ✓DISCOM approval speed component reflects EPC operational risk, not just subsidy quantum
Cons
- ✗Does not account for market competition intensity (Maharashtra vs Rajasthan)
- ✗State top-up schemes change frequently, verify before expansion
- ✗Irradiance advantage (Rajasthan) is not directly captured in the score
- ✗District-level variation within states can be large, a state-level score masks rural vs urban differences
Verdict
Gujarat is the clear leader for new EPCs starting out, highest combined subsidy, fastest DISCOMs, and lowest installed cost. Delhi is the right market for premium-margin urban solar with short payback. Rajasthan is the irradiance-driven growth market for EPCs willing to cover rural PM-KUSUM demand. UP and Karnataka are large-volume plays, UP for scale, Karnataka for urban premium. The State Subsidy Score is a starting point; validate it against your team's geography and operational reach before committing to an expansion.
How QuickEstimate helps EPCs operate across multiple states
Rohit, a 12-person EPC in Surat, expanded to Jaipur after seeing Rajasthan's irradiance advantage. His team struggled to manage Gujarat proposals (DGVCL tariff, GEDA subsidy) alongside Rajasthan proposals (JVVNL tariff, RRECL process), every city needed different numbers in the quote, and his reps were mixing up subsidy figures.
QuickEstimate's Proposal Generator handles state-specific tariff and subsidy data, so Rohit's Surat reps can generate Gujarat proposals and his Jaipur reps can generate Rajasthan proposals from the same app, with the correct DISCOM tariff, PM Surya Ghar grant, and payback figure pre-filled for each location.
- Proposal Generator, state-specific proposals with correct DISCOM tariff, PM Surya Ghar subsidy, and payback period, 60 seconds on a phone from any state.
- Pipeline Management, manage Gujarat, Rajasthan, Delhi, and UP projects in a single pipeline with state-level and DISCOM-level filtering.
- Sales Reports, compare close rates, deal sizes, and conversion times by state to see which market is generating the best margins for your team.
- Lead Capture, pull PM Surya Ghar portal leads from multiple states into one dashboard automatically, so no lead from Lucknow or Jodhpur gets missed.
See the PM Surya Ghar vendor registration guide to ensure your national portal registration covers all the states you operate in. The solar cost per watt in India guide has the per-state installed-cost benchmarks used to calculate the State Subsidy Score's Input 1.
What to do this week, for your multi-state EPC strategy
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1
Score your current state and your top expansion candidate
Use the State Subsidy Score table and DISCOM approval comparison to rate your home state against your expansion target. If the gap is less than 1 point, the expansion decision comes down to market size and competition, not subsidy. If it's more than 1.5 points, reconsider the target.
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Verify state top-up eligibility before including it in proposals
State top-up schemes (GEDA, Mukhyamantri Solar Yojana, HAREDA) change frequently. Before including a state top-up in a signed proposal, verify current eligibility directly with the DISCOM or state nodal agency. An incorrect top-up in a signed proposal creates a dispute when disbursement arrives.
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Start generating proposals for your expansion state today
Open a free QuickEstimate account and configure your expansion state's DISCOM tariff and PM Surya Ghar subsidy. Run 3 test proposals for your most common system sizes in the new state, if the math looks right, start canvassing within the week.
Frequently asked questions
Which Indian state has the best solar subsidy in 2026?
Gujarat ranks first in India's State Subsidy Score for 2026. It combines the PM Surya Ghar central grant (up to ₹78,000 on 3 kW) with GEDA's state top-up (₹10,000–₹40,000 depending on system size and category), giving a total effective subsidy of 55–65% of project cost on a 3 kW residential system. Gujarat also benefits from the lowest installed costs in India (proximity to Surat's module supply chain) and among the fastest DISCOM approval times (DGVCL, 35–65 days end-to-end).
Does Rajasthan have a state top-up subsidy in addition to PM Surya Ghar?
No. As of mid-2026, Rajasthan does not offer a dedicated residential state top-up on PM Surya Ghar. The central grant (₹30,000 for 1 kW, ₹60,000 for 2 kW, ₹78,000 for 3 kW and above) is the primary financial subsidy. However, Rajasthan's extraordinary irradiance (5.8–6.2 kWh/m²/day) generates 25% more electricity per kW than the national average, effectively functioning as a physics-based "subsidy" through shorter payback. See the state top-up subsidies guide for a full national comparison.
Which state has the fastest DISCOM solar approval in India?
Based on Q1 2026 benchmark data, DGVCL (Gujarat) and Tata Power DDL (Delhi) are tied for the fastest residential solar net-metering approval in India, both achieving 35–75 day end-to-end timelines. BESCOM (Bengaluru) follows at 45–75 days. TANGEDCO (Tamil Nadu) is among the slower major DISCOMs at 65–105 days. See the DISCOM approval time benchmark for the full comparison.
What is the PM Surya Ghar subsidy amount in 2026?
PM Surya Ghar Muft Bijli Yojana (launched February 2024 by MNRE) provides a central government grant of ₹30,000 for 1 kW, ₹60,000 for 2 kW, and ₹78,000 for 3 kW and above systems. The subsidy is disbursed directly to the consumer's Aadhaar-linked bank account via DBT after the DISCOM commissioning certificate is uploaded on the national portal. The grant applies uniformly across all states. See the full slab breakdown in our PM Surya Ghar subsidy slabs guide.
How does the net metering buyback rate affect solar ROI in different states?
The net-metering buyback rate is the price at which the DISCOM credits surplus solar units exported to the grid. States with higher buyback rates (Gujarat ₹3.50–₹4.50, Rajasthan ₹3.70–₹4.20) provide better ROI on oversized systems. States with lower buyback rates (UP ₹2.50–₹3.00) make self-consumption maximisation the primary strategy, size the system to cover 85–95% of consumption. Since retail tariffs are always higher than buyback rates, every unit self-consumed is worth 2–3x more than every unit exported.
Can a solar EPC operate across multiple states in India?
Yes. An EPC business can operate in any state in India, but each state requires separate empanelment with the state nodal agency (KREDL for Karnataka, RRECL for Rajasthan, UPNEDA for UP, etc.) and separate registration on the PM Surya Ghar national portal for each service area PIN code zone. Multi-state EPCs benefit from covering states with complementary seasonal demand patterns, Rajasthan and Gujarat peak in summer while UP and Delhi have more even year-round demand. CRM tools like QuickEstimate help manage multi-state lead pipelines and proposal workflows from a single platform.
Is the Delhi Mukhyamantri Solar Yojana available in 2026?
The Delhi Mukhyamantri Solar Yojana has been operational, providing state-level solar support to eligible Delhi residents on top of the PM Surya Ghar central grant. Scheme eligibility, quantum, and terms are administered through BSES Rajdhani, BSES Yamuna, and Tata Power DDL and are subject to GNCTD policy revision. Always verify current scheme terms with the relevant Delhi DISCOM before including state scheme benefits in a consumer proposal. See the full Delhi NCR solar EPC guide for the current process.
What documents does a consumer need to claim PM Surya Ghar subsidy?
The consumer needs: (1) Aadhaar card (for portal registration and Aadhaar-linked bank account), (2) current electricity bill from the DISCOM (showing consumer number and sanctioned load), (3) bank account details linked to Aadhaar (for DBT), and (4) active mobile number. After installation, the DISCOM issues a commissioning certificate that the consumer uploads on the PM Surya Ghar portal, triggering subsidy disbursement within 30–45 days. The full process is covered in our PM Surya Ghar application process guide.
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