Why Homeowners Are Switching to Solar
Rising electricity bills, government subsidy schemes like PM Surya Ghar Yojana, and increasing environmental awareness are driving homeowners in Delhi NCR to adopt rooftop solar. A well-sized solar system can reduce monthly electricity bills by 60–90%, with a typical payback period of 4–6 years for residential installations.
How to Choose the Right System Size
System size depends on your monthly electricity consumption. A household using 300–400 units/month typically needs a 3kW system, while 500–700 units/month may require 5kW. Start by checking your last 6 months of electricity bills. Y2 Solar analyses your consumption pattern to recommend the optimal system size — not too large (wasted investment) and not too small (insufficient savings).
Roof Requirements for Solar Panels
You need approximately 80–100 sq ft of shadow-free rooftop area per kW of solar capacity. The roof should receive direct sunlight for at least 4–5 hours daily. RCC roofs, metal sheds, and flat terraces all work — the mounting structure is customised for each roof type. Water tanks, staircase rooms, and nearby tall buildings can create shadows that reduce generation, so a proper site survey is essential before installation.
Understanding Solar Costs and Subsidy
A residential solar system in Delhi costs approximately ₹60,000–₹80,000 per kW before subsidy. Under PM Surya Ghar Yojana, the central government provides subsidy of ₹30,000/kW for the first 2kW and ₹18,000/kW for 2–3kW capacity — meaning up to ₹78,000 subsidy for a 3kW system. The subsidy is credited directly to your bank account after installation and DISCOM verification.
Net Metering: How Bill Credits Work
With net metering, your electricity meter records both what you consume from the grid and what you export back. At billing time, the exported units are subtracted from imported units, and you only pay for the net difference. In many months, your bill can drop to just the fixed charges. Y2 Solar assists with the complete net metering application process through BSES or Tata Power Delhi.
What to Expect During Installation
A typical residential installation takes 2–4 days after site survey and material delivery. The process includes: mounting structure installation, panel fitting, inverter and wiring setup, earthing, and final testing. After installation, Y2 Solar helps with the DISCOM application for net meter installation, which usually takes 2–4 weeks for approval and meter replacement.
Ready to go solar?
Share your electricity bill and location. Y2 Solar will help you understand the right system size, expected savings, and installation process.