On-Grid Solar System in Kerala: A Simple Guide for Homes & Businesses

On-Grid Solar System in Kerala: A Simple Guide for Homes & Businesses

Rooftop solar power is a viable option for many homes and businesses in Kerala, which gets plenty of sunshine all year round. With electricity costs a frequent worry, more and more property owners are looking at generating some of their own power instead of being totally dependent on the grid. 
One of the options that is worth considering in Kerala is an on-grid solar system especially for the properties which already have a KSEB electricity connection. You can produce electricity during the day and use it directly for your home or business . If your panels are generating more power than you require at that moment, you can feed the excess back into the grid under the appropriate metering scheme.

What Is an On-Grid Solar System?

Simply put, an on-grid system means your property is connected to the existing electricity grid. Sunlight strikes solar panels on the roof and converts it to electricity. An inverter changes that electricity into a form your appliances and electrical equipment can use.

The electricity generated by the panels during the day can be used to run lights, fans, refrigerators, pumps, air conditioners, computers and other connected loads. If the panels generate more electricity than the property consumes, the surplus electricity can be exported to the grid, subject to the relevant KSEB rules and metering arrangement.

At night, or whenever solar generation is not enough, electricity can be taken from the grid as usual.

This simple arrangement is one reason grid-connected rooftop solar has become an option for both residential and commercial properties.

How Does It Work?

If you think about what happens in a normal day it is easier to understand the process.

The sun comes up in the morning and the panels start making electricity. The generated power is processed by the inverter and fed to the electrical loads of the property.

In general, solar generation is higher during the middle part of the day. If you are using less electricity than is being produced, the surplus can be sent to the grid.

Later in the evening, solar generation decreases. Once there is not enough sunlight, the property automatically relies on the electricity grid.

So, instead of storing all the electricity in batteries, the system works alongside the grid. This makes it different from an off-grid setup.

Why Are Kerala Homeowners Considering Rooftop Solar?

For many families, the main attraction is the possibility of reducing the amount of electricity they need to purchase from the grid.

A properly sized rooftop on grid solar system in Kerala can generate a useful portion of a home's daytime electricity requirement. The actual output will depend on many factors including the size and quality of the panels, the amount of sunlight available, shading, roof orientation and system design.

There is also the advantage of using an existing rooftop. A suitable roof can become a small power-generating area without requiring additional land.

For a family that has consistent electricity consumption, this can be an interesting long-term investment.

What About KSEB Net Metering?

Net metering is an important part of rooftop solar for consumers connected to the electricity grid.

In simple terms, a bidirectional meter records electricity moving in both directions. When your property needs more electricity than the solar panels are producing, power comes from the grid. When your system produces more than you are using, the excess can be exported to the grid under the applicable regulations.

The exact process, eligibility, capacity limits and applicable charges or programmes can change, so it is important to check the latest KSEB requirements before starting a project.

KSEB's rooftop solar portal also provides information and facilities related to applications, capacity calculation and other steps involved in connecting a rooftop system.

How Much Does It Cost?

There is no fixed on grid solar system price in Kerala as every installation is different. 
The last quote can be based on: 
• Type and wattage of solar panels 
• Inverter information 
• Required number of panels 
• Size and condition of the roof 
• Structural Support 
• Electrical Work 
• Cable specifications 
• Complexity of installation 
• Requirements for metering and connection 
This is why it might be difficult to see the difference when comparing two quotations based on the total price. Other considerations are the specifications of the panels, the inverter, the installation work, warranty and after-sales support.

Choosing the Right Capacity

One mistake is to pick a system just because someone suggested a certain capacity.

The better way is to look at your real electricity usage first.

For example, a household with relatively low monthly consumption may not require the same setup as a large home with several air conditioners, water heaters and other high-consumption appliances.

The available roof area also matters. Shaded areas, nearby buildings, trees and the direction of the roof can affect how much electricity the panels can generate.

A proper site inspection can therefore be useful before finalising the system.

Is It Suitable for Businesses?

Solar isn’t just for homes. 
Rooftop installations can also be considered by shops, offices, schools, hospitals, hotels, workshops and other commercial buildings with adequate space and electricity needs. 
On-site power generation can be especially useful for companies that use large amounts of electricity during daylight hours, as the electricity is being generated at the same time many of the property’s appliances and equipment are in use. 
The right solution will depend on the building's consumption pattern, the available roof area and the connection requirements that apply.

What Happens During a Power Cut?

That’s a key point a lot of people are missing. 
A normal grid-tied solar system is not designed to continue to generate power when the grid goes down. In normal operation the inverter disconnects from the grid during an outage for safety reasons. 
So if your main requirement is backup power during power cuts, then an on-grid system alone may not be enough for you. A hybrid or battery-backed solution might be more suitable depending on your requirements. 
It is worth understanding this distinction before buying.

What Should You Look for in a Solar Installer?

Choosing the equipment is only one part of the process. The quality of installation can have a major effect on the long-term performance of the system.

Before choosing a company, check things such as:

• Quality and specifications of the panels 
• Inverter brand and warranty 
• Mounting structure 
• Installation experience 
• Electrical safety 
• KSEB-related support 
• Warranty terms 
• After-sales service 

A good installation should be planned around the actual property rather than using the same design for every customer.

Making the Switch to Solar

Solar is a long-term decision so it’s worth taking some time to make the final choice. Begin with a review of your recent electricity bills, available roof space and daytime electricity use. A professional assessment can then help determine whether a grid-connected system is appropriate and what capacity may be appropriate. 
Soorya Solar International offers solar solutions with support in system planning, installation and related requirements to homeowners and businesses in Kerala. 
You don’t want to just put up as many panels as you can. A properly designed system should be able to provide the property with its electricity needs, available space and budget and be installed safely and correctly. 
With proper planning, rooftop solar can be integrated into your property’s daily energy consumption and help you tap on the abundant sunlight in Kerala.