Delhi’s solar landscape has evolved rapidly through 2025 despite unique challenges associated with dense urban infrastructure. With limited land availability and rising electricity demand driven by air conditioning use. The city’s solar journey relies heavily on rooftop and distributed systems. The Delhi Solar Energy Policy 2023 has played an important role in accelerating adoption across residential. commercial. and government buildings.

This report presents an updated snapshot of Delhi’s solar capacity and generation as of December 2025. based on available MNRE and CEA data. It offers valuable insights for homeowners. businesses. EPC contractors. and anyone evaluating a solar company in Delhi or comparing solar panel manufacturers in Delhi for new installations.

Installed Solar Capacity in Delhi. Status as of September 2025

Delhi’s total installed solar capacity stands at approximately 373 MW. with rooftop systems contributing an overwhelming 97 percent. This reflects the structural reality of the city where ground-mounted deployment is extremely limited. Rooftop growth has been significantly driven by the PM Surya Ghar scheme and the Delhi Solar Policy’s incentives for net metering and green buildings.

Delhi’s solar capacity has grown by about 76 percent since mid-2022. although progress toward the city’s target of 750 MW of rooftop solar by 2027 is currently at about 48 percent. owing to space constraints and rooftop suitability issues.

Category-wise Breakdown of Delhi’s Installed Solar Capacity (2025)

Rooftop Solar. Grid Connected

• 362 MW. about 97 percent of total installed capacity
• Growth driven by subsidies under PM Surya Ghar and streamlined approvals
• Residential installations contribute about 200 MW
• Commercial and government installations contribute about 162 MW
• Delhi has achieved 302 MW toward the official 750 MW rooftop target. representing about 40 percent progress as of early December

Ground Mounted Solar

• 9.8 MW. about 3 percent of total solar
• Primarily small-scale projects such as the 5 MW Rajghat plant. which was repurposed from a thermal station in 2023

Off-Grid and Hybrid Solar

• 1.46 MW. less than 1 percent
• Includes institutional and remote systems with negligible hybrid capacity

Total Solar Installed

• 373 MW contributes roughly 12 percent of Delhi’s total installed power capacity of about 3,000 MW
• Renewables overall account for about 9 percent of the power mix

Additions and Projections

• Additions in 2025. about 80 to 90 MW. mostly rooftop
• This reflects a 25 percent year-on-year increase supported by friendly net metering provisions
• Projections for 2026. total capacity expected to reach 450 to 500 MW
• Achieving policy targets will require a 24 percent annual growth rate
• Rooftop suitability remains a key barrier. since only about 30 percent of roofs in Delhi are structurally viable
• Grid integration challenges also slow expansion. especially during peak production hours

For consumers looking for reliable installations. choosing a high-efficiency module provider is important. This makes the selection of the right solar company in Delhi and trusted solar panel manufacturers in Delhi essential for long-term performance.

Solar Power Generation Statistics for Delhi in 2025

Delhi’s solar generation pattern is seasonal and strongly influenced by pollution and shading. both of which reduce output compared to national averages. Generation is highest between April and July when insolation reaches about 5.5 kilowatt-hours per square meter per day.

The annual capacity factor for Delhi’s solar plants ranges between 18 and 20 percent. slightly lower due to the city’s urban environment.

Generation Data for 2025

H1 2025 (January to June)

• About 250 million units (MU) generated
• About 22 percent year-on-year growth
• Solar contributed roughly 5.5 percent of the city’s electricity supply
• High temperatures in May and June created record rooftop output
• Solar adoption helped achieve an estimated 15 percent reduction in residential emissions

Q3 2025 (July to September)

• About 120 MU generated
• About 18 percent year-on-year growth
• Contribution dropped to 4.8 percent due to monsoon conditions
• Battery storage pilots of 10 MW helped stabilize off-peak supply

October 2025

• About 35 MU generated
• Aligns with Delhi’s typical 18 percent capacity factor

FY 2025 to 2026. April to October Projection

• About 550 MU total generation
• About 20 percent year-on-year growth
• Solar met 12 percent of Delhi’s peak demand of 7,500 MW during summer

Calendar Year 2025

• Annual projection of 650 to 700 MU
• Equivalent to powering about 150,000 households
• Expected to offset around 0.5 million tons of carbon emissions

Additional Metrics

• Peak instantaneous generation. about 70 MW in July 2025. roughly 1 percent of peak demand
• Economic savings. net metering generated about 250 to 300 crore rupees in cumulative savings for consumers
• Employment impact. more than 2,000 jobs created in installation and maintenance
• Operational challenges.
  
  • Pollution can reduce efficiency by 10 to 15 percent
  • Grid curtailment during peak solar hours is about 5 percent
  • Community solar and peer-to-peer trading pilots aim to improve distribution

Solar Manufacturing in Delhi

Delhi does not have large-scale solar module manufacturing clusters due to space constraints. high real estate costs. and its service-driven economy. Most procurement for rooftop projects comes from national manufacturers. especially those with advanced technologies and tier one quality standards.

This makes it essential for EPC contractors. installers. and customers to partner with reliable solar panel manufacturers in Delhi or trusted national brands supplying to the capital. For anyone seeking durable and high-efficiency systems. choosing a reputable solar company in Delhi ensures better warranties. certified components. optimized rooftop designs. and safer installations.

Conclusion

Delhi’s solar progress in 2025 highlights the importance of rooftop systems. consumer incentives. and reliable manufacturing supply chains. Despite structural challenges. the city is on track for steady growth supported by favorable policies and rising consumer awareness.

As demand increases. homeowners and businesses will benefit from partnering with trusted installation experts and high-quality equipment suppliers. Strengthening collaboration between EPC players and leading solar panel manufacturers in Delhi will remain central to meeting Delhi’s clean energy ambitions.