Overview of rooftop solar panels

India is the tropical goldmine of solar power generation since it receives almost 300 days of uninterrupted sunlight.

The electricity for which the DISCOM charges up to Rs. 8/unit, when generated by a solar panel for home, is free. That's because sunlight doesn't cost a penny.

We, at TechSolar, offer rooftop panel systems ranging from 2 KW to 10 KW and higher for homes and housing societies.

Being the third-largest solar installer in the country with hands-on experience of installing 90 MW worth of solar panels on roof already, we believe that every residential rooftop - whether an RCC roof or a metal sheet roof - has the scope to go Solar.

Even if you consume 500 units of electricity/month, with a 4 KW solar plant for home installed on your residential rooftop, you can easily save up to Rs. 44,000 every year on your electricity bills (assuming that the electricity tariff in your state is Rs. 8/unit).

Solar installation requirements

Other than the fact that your rooftop should be easily accessible, there are a couple of installation requirements that are mandatory if you want to install a solar panel for home the right way.

#1. A mandatory rooftop inspection by experts

Did you know that if your rooftop is covered with shadows from surrounding trees or towers between 9 AM to 4 PM, your solar system for home won't be able to generate as much electricity from solar power as it should because the solar panels will be shaded?

Our expert solar consultants can figure out which spot on the roof will receive the maximum sunlight, what should the ideal height of the mounting structures be to avoid shadows, and which type of solar panel for home would be the best for you according to the type of roof you have.

Solar experts also confirm that your roof is strong enough and wide enough to support the chemical anchoring of the heavy solar mounting structures.

#2. Determining the right tilt angle for the solar panel for home

Ideally, India receives the maximum Sunlight in the Southwards direction. Since it’s not a standardized construction parameter, all residential rooftop buildings do not face South by default.

Hence, the mounting angle has to be such that the solar panel for home on your rooftop receives maximum sunlight. The ideal tilt angle for a rooftop panel in South India is 10 degrees. In North India, the tilt angle for solar panels should be more than 20 degrees.

Working of a solar plant for home

A solar system has a careful arrangement of many solar panels connected in series. As soon as the sunlight finds the PV cells in the solar module (rooftop panel), it gets converted into DC power.

A solar inverter is then used to convert the DC power into alternating current (AC) to supply electricity to run home appliances and meet other energy requirements.

The solar-supplied electricity is fed into a bidirectional meter because:

The solar panel for home on your rooftop could be generating more power than you’re consuming.

The bidirectional meter will supply excessive power to the DISCOM.

The net metering system will keep a record of the electricity that was supplied to the DISCOM.

At the end of every month, you’ll actually be paid by DISCOM for the power you supplied them with (that is, if the power generated was more than the power you consumed).