Rooftop Solar - Indway Prime Energy

Rooftop Solar System

Rooftop Solar

Solar refers to a solar power generation system installed on rooftops of residential, commercial, industrial, or institutional buildings. It uses solar panels to convert sunlight into electricity, which can be used on-site or sent to the grid.

How Does a Rooftop Solar System Work?

Sunlight Hits the Solar Panels: PV panels capture solar energy.
Electricity Generation: Panels convert sunlight into Direct Current (DC).
Inverter Conversion: Inverter converts DC to Alternating Current (AC).
Power Usage: AC is used in appliances; excess energy is stored or sent to the grid.

Types of Rooftop Solar Systems

Solar Types

Grid-Tied System: Connected to the grid, no batteries, allows net metering.
Off-Grid System: Not connected to the grid, requires batteries.
Hybrid System: Connected to both grid and batteries; allows backup and export.

Key Components of a Rooftop Solar System

Solar Panels – Convert sunlight into DC electricity.
String Combiner Box – Multiple solar panel strings into one output for connection to the inverter.
Mounting Structure – Supports panels on the roof.
Battery (optional) – Stores excess energy for later use.
Net Meter – Tracks energy sent to and received from the grid.
Wiring & Protection – Ensures safety and connectivity of components.

Benefits of Rooftop Solar

Benefit	Explanation
Cost Savings	Reduces monthly electricity bills.
Green Energy	Clean and renewable energy source.
Low Maintenance	Minimal upkeep once installed.
Energy Independence	Less reliance on grid electricity.
Incentives & Subsidies	Government financial support available.
Utilization of Idle Space	Uses unused rooftop areas efficiently.

Challenges and Considerations

Challenge	Explanation
High Initial Cost	Significant upfront investment.
Weather Dependency	Less effective during cloudy/rainy weather.
Space Requirements	Requires sufficient rooftop space.
Shading Issues	Shadows from trees/buildings reduce efficiency.
Grid Compatibility	May face technical/regulatory challenges.

Net Metering Explained

Net Metering

Tracks energy consumed from and sent to the grid.
If exported energy, imported energy, credit is provided.
Encourages solar adoption with financial benefits.

Applications of Rooftop Solar

Applications

Residential: Individual homes and apartments.
Commercial: Offices, shops, malls, showrooms.
Industrial: Factories, warehouses.
Institutional: Schools, hospitals, colleges.

Rooftop Solar in India

Government Subsidy: Up to 40% for residential systems (up to 3 kW).
Target: 40 GW rooftop solar capacity under National Solar Mission.
DISCOMs: Implementing subsidies and net metering across states.

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