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SolarSpot elevated structure in Chowk, Lucknow

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Rooftop Solar Guides, Made Simple

Read clear, practical guides on subsidies, system types, sizing, and savings, written by our team for homes and businesses across India.

All Guides

System types6 min read

On-Grid vs Hybrid vs Off-Grid Solar: Which Should You Choose?

Choose on-grid solar if your grid supply is reliable and you want the lowest electricity bill. Choose hybrid if you face frequent power cuts. Choose off-grid only where there is no dependable grid.

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Savings5 min read

What Size Solar System Does My Home Need? A Bill-Based Guide

Plan about 1 kW of rooftop solar for every ₹1,000 of your monthly electricity bill. Bills of ₹500 to ₹3,499 suit 3 kW, ₹3,500 to ₹4,499 suit 4 kW, and ₹4,500 to ₹5,499 suit 5 kW.

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Savings5 min read

How Does Net Metering Work in India?

Net metering records the units your rooftop solar exports to the grid and the units you import. Your DISCOM bills you only for the difference, so surplus solar units reduce your bill.

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Subsidy6 min read

PM Surya Ghar Subsidy in Uttar Pradesh: How to Get ₹1,08,000

A home in Uttar Pradesh that installs a rooftop solar system of 3 kW or more can get up to ₹1,08,000: ₹78,000 from the central PM Surya Ghar scheme and up to ₹30,000 from the state.

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Structure5 min read

What Makes a Strong Elevated Solar Structure?

A strong elevated solar structure uses thick hot-dip galvanized steel, a zinc coating of 80 to 120 microns, rigid top-hat purlins, and a design rated for high winds. The SolarSpot OCTASHIELD structure uses 3 mm HDGI steel rated for 180 km/h winds.

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Equipment4 min read

What Are TOPCon Bifacial Solar Panels?

TOPCon bifacial panels are N-type solar modules with tunnel oxide passivated contact cells that capture sunlight on both the front and the back. They generate more power from the same roof area than older panel types.

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System types4 min read

How On-Grid Solar Works, and What Happens in a Power Cut

Understand net metering, why on-grid gives the biggest savings, and why it switches off when the grid goes down.

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System types5 min read

Hybrid Solar with Battery: What Can It Run?

Find out which loads to back up, how the battery is sized, and when hybrid is worth the extra cost.

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System types4 min read

When Does Off-Grid Solar Make Sense?

Learn about batteries, days of autonomy, and the sites that truly need a standalone system.

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Savings1 min read

Estimate Your Savings in One Minute

Enter your monthly bill to see how much you could save each month, each year, and over 25 years.

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Maintenance4 min read

Why Solar Maintenance Protects Your Savings

Learn what seven years of care includes—from regular cleaning and inverter checks to live monitoring—and why it matters for long-term output.

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Business5 min read

Solar EPC for Factories and Warehouses

Understand what engineering, procurement, and construction means, and how large projects run without downtime.

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Basics4 min read

Solar Glossary: Rooftop Solar Terms Explained

Find plain definitions of net metering, DCR panels, TOPCon, HDGI steel, sanctioned load, and more than 20 other solar terms.

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