Skip to content
  • About Us
  • Our Services
  • Resources & Tools
  • Solar In Uttar Pradesh
  • Contact Us
Sooryoday SooryodaySooryoday

Frequently Asked Questions


A solar rooftop system is a setup where solar panels are installed on the roof of a building to generate electricity from sunlight. 

A solar rooftop system works by capturing sunlight through solar panels installed on the roof, which convert it into direct current (DC) electricity. This DC power is then passed through an inverter, which converts it into alternating current (AC) electricity — the form used to power homes and businesses. The electricity is then used to run appliances, and any excess energy can either be fed back to the power grid (in grid-connected systems) or stored in batteries (in off-grid or hybrid systems). This system reduces dependence on the grid, lowers electricity bills, and provides a clean, renewable source of energy.

Going solar helps you save up to 80-90% on electricity bills by generating your own power from sunlight. Solar systems require low maintenance, offer long-term reliability, and can even increase your property value. With government subsidies, tax benefits, and net metering policies, the initial investment becomes even more attractive.

Yes, solar power is safe. It is one of the safest and cleanest energy sources available. It produces no noise, emissions, or pollutants, making it environmentally friendly and non-hazardous to health. The components used in solar rooftop systems — like solar panels and inverters — are tested to rigorous safety standards and have built-in protections (like surge protection, earthing, and insulation) to prevent electrical accidents.

When installed by Sooryoday certified professionals and maintained properly, a solar system poses no fire, shock, or radiation risk. In fact, compared to traditional power sources (like diesel generators or coal plants), solar is significantly safer and more sustainable.

1. Shadow-Free Rooftop Space

A flat or sloped roof with adequate sunlight exposure.

Minimum space: ~100 sq. ft. per kW.

2. Rooftop access & 

There are three main types of solar systems used for rooftop and ground-mounted installations, each designed for different needs:

1. On-Grid Solar System

  • Also called On-Grid systems.
  • Connected to the electricity grid
  • No batteries – Uses solar power during the day, and draws from the grid when needed
  • Excess power is exported to the grid (via net metering)
  • Best for: Homes and businesses with reliable grid power
  • Most cost-effective, eligible for government subsidies

 

2. Off-Grid Solar System

  • Also called Standalone systems.
  • Not connected to the grid
  • Uses batteries to store electricity
  • Provides complete energy independence
  • Best for: Remote areas with no grid access
  • Useful in areas with frequent power cuts, but higher upfront cost due to batteries

3. Hybrid Solar System

  • A combination of grid-tied and off-grid systems.
  • Connected to both grid and batteries
  • Uses solar power first, stores excess in batteries, and can fall back on the grid if needed
  • Offers backup during outages
  • Best for: Users who want energy security and savings
  • Balanced option – slightly costlier than grid-tied but provides backup power

Yes, solar panels do generate electricity during monsoon and winter — but with reduced efficiency.. This fall in production is considered in the unit generation estimates provided by Sooryoday for every project.

✅ Off-Grid or Hybrid System (with Battery Backup)

Yes, these systems can supply power during outages.

The solar panels charge the batteries, and during a power cut, the inverter uses stored power to run your appliances.

Ideal for areas with frequent power cuts.

🚫 Grid-Tied System (No Battery)

No, it does not work during a power failure for safety reasons.

During a grid outage, the system automatically shuts down to prevent backfeeding electricity to the grid (which could endanger line workers).

This is called "anti-islanding protection."

The electricity generated by a solar plant depends on factors like its capacity (kW), location, sunlight availability, and system efficiency.

✅ General Estimate (India-based conditions):

1 kW of rooftop solar plant produces about 4 to 5 units (kWh) per day

That’s approximately 1,400 to 1,800 units per year

To choose the right size for your solar plant, we consider - 

  • Monthly electricity usage
  • Shadow-free roof area

Once you register interest, Sooryoday would conduct a scientific mapping of your rooftop and suggest the appropriate project size for you.

Net metering is a billing system that allows rooftop solar users to export excess electricity they generate to the power grid and get credited for it.

⚙️ How It Works:

  1. Your rooftop solar system powers your home or building.
  2. If you generate more electricity than you consume, the excess goes to the grid.
  3. If your system generates less than you need, you draw the difference from the grid.
  4. A net meter records both import and export of electricity.
  5. At the end of the billing cycle, you're charged only for the “net” units used
Read more > < Read less

A rooftop solar system lasts 25 to 30 years, with minimal maintenance. (Inverter may need replacement once during system life)

No — solar rooftop systems have very low maintenance costs.

✅ Why Maintenance Costs Are Low:

  1. No moving parts in solar panels = minimal wear and tear
  2. Durable components designed to withstand heat, rain, and dust
  3. Simple cleaning and basic checks are all that's usually required

Sooryoday provides 5-year maintenance complimentary

Yes, regular cleaning is essential to keep your solar plant running efficiently. We recommend cleaning the panels twice a month.

Solar energy systems can be installed on virtually any type of roof, regardless of its size or material. In case of a fragile roof—such as asbestos, Sooryoday will assess the roof’s condition and tailor a specialized mounting structure accordingly. 

The cost of a rooftop solar plant in India depends on its capacity (in kW), type of system (grid-tied, hybrid, or off-grid), brand, and whether you're eligible for government subsidies.

The break-even period of an on-grid system is as low as 2-4 years. After break-even, all electricity generated is free for the next 20+ years

Yes! The Government of India offers attractive subsidies and incentives to promote rooftop solar adoption — especially for residential consumers.

Segment - Solar Project size - Subsidy

Residential - 1kW - ₹30,000/-

Residential - 2kW - ₹60,000/-

Residential - Above 3kW - ₹78,000/-

At present, the Uttar Pradesh state government provides an additional solar subsidy of ₹15,000 per kw (max ₹30,000) when you install a rooftop solar system, bringing the total maximum subsidy amount to ₹1,08,000.

Sooryoday provides easy EMI options while also facilitating collateral free loan facilities provided by various banking institutions and NBFCs for solar projects.

In solar rooftop projects, CapEx and OpEx refer to two different ownership and payment models:

💰 1. CapEx Model (Capital Expenditure)

You buy and own the solar system.

Features:

  1. Upfront investment by the consumer
  2. You own the system and benefit fully from energy savings
  3. Responsible for operations & maintenance (O&M) (can be outsourced)
  4. Eligible for subsidies (residential) and tax benefits (commercial)

📊 Best For:

  • Homeowners or businesses with available capital
  • Those wanting long-term savings and full control

🔁 2. OpEx Model (Operational Expenditure) – Also called RESCO/PPA Model

You pay only for the electricity generated, not the system.

✅ Features:

  1. No upfront cost
  2. A third-party installer (RESCO provider) owns, installs, and maintains the system
  3. You sign a Power Purchase Agreement (PPA) and pay per unit of electricity (₹4.5–₹6/unit)
  4. Usually for 10–25 years
  5. Ideal for commercial/industrial users

📊 Best For:

Entities with high energy needs but no capital budget

Institutions, industries, or commercial spaces looking for hassle-free solar adoption

Our Newsletter

Our Newsletter

*Don’t worry we don’t spam

Information

Information

  • > About Us
  • > Blogs
  • > Contact Us
  • > Solar Savings Calculator
  • > Solar Financing & Subsidy
  • > PM suryaghar
  • > Schedule your solar journey
  • > Solar In Uttar Pradesh

Solar solution

Solar solution

  • > Residential solar solution
  • > Commercial & Industrial solar solution

Useful links

Useful links

  • > Privacy Policy
  • > Terms of Service

Follow Us

Follow Us

© 2025 Sooryoday | All rights reserved.
  • Choosing a selection results in a full page refresh.
Home
Menu
Shop
Account
Filter
X

Choose what fits you best — we’ll take care of the rest!

Loading WhatsApp button...