Things You Should Know Before Buying On-Grid Solar System

Solar power systems are divided into three categories: grid-connected, off-grid, and hybrid. The grid-connected solar system is the most popular of all the numerous types of solar systems deployed across the world.

A $500 billion investment in renewable energy is expected in India by 2028, making the nation one of the most attractive markets for solar. A total of 227 gigawatt-hours of renewable energy must be generated by India by 2022, with solar power accounting for around 114 gigawatts (GW), wind power accounting for 67 GW, and other sources such as hydro and bio making up the remainder. As of February 2021, the country’s installed renewable energy capacity was 94.43 GW.

Around 49% of the world’s power will be produced by renewable sources by 2040, according to current projections. In addition, the Indian government plans to build a renewable energy-powered green city in each Indian state.

Grid-connected solar systems, also known as grid-tied, grid inter tied, grid back feeding, utility-interactive, and on-grid solar systems, are gaining popularity as a way to generate alternative energy by connecting solar panels to a utility power grid.

components of grid-connected solar system

What is an On-Grid Solar System?

A grid-connected solar system is also known as a grid-tied electricity system or a grid-connected photovoltaic system. The utility grid is connected to this solar power installation that generates electricity.

Solar panel for home, inverters, a power conditioning unit, and grid connection equipment are all included.

Solar power systems that are grid-connected range in size from modest residential rooftop systems to big utility-scale solar power plants. Unlike stand-alone power systems, they rarely employ integrated battery solutions.

A grid-connected solar power system is a very cost-effective and simple method to add solar energy to your house. Solar panels and an inverter are used to generate power in this arrangement. Solar panels convert sunlight into direct current (DC) power, which is then converted into useable alternating current (AC) electricity using an inverter.

During the day, a solar power system connected to the grid transfers surplus solar electricity from the panels to the grid. Then, at night, when the sun has set and the panels are no longer producing power, it taps into the grid for power.

Components of a Grid-Connected Solar System

Grid-connected or on grid solar system generate solar energy during the day and then draw electricity from the power company when needed at night or in poor weather since they are connected to the grid.

1. Modules for solar power

The PV modules’ main purpose is to convert sunlight into DC electrical power as quickly as possible.

2. An inverter that may be used in both directions

For domestic usage, the inverter converts DC electricity to normal AC power. When the grid distributes energy, the inverter automatically synchronizes with the utility power.

When inverters are utilized, interference causes energy losses. This is true for all of the power system’s components. An inverter that is adequately suited to the solar array often has a 90 percent efficiency.

3. Fuse-protected AC breaker panel

The breaker panel, often known as a fuse box, resembles a standard fuse box. It comprises a domestic power supply and installation, with no additional breakers required for the inverter or filter connections.

4. Controller for charging

The charge controller’s job is to keep the solar battery from overcharging and therefore extend the life of your PV system.

5. Meters for electricity

To work properly, the PV generator requires two electric meters. Between the grid and the inverter, these meters are installed.


One of the meters is wired into the grid to assist with invoicing and quantification of the energy generated. When there is no solar radiation, the other electric meter is utilized to calculate the PV inverter’s tiny usage.

6. Switches and wiring for safety

The PV array may be detached from the inverter for testing or maintenance since it always produces a voltage in solar radiation. Separate isolation and inverter safety switches should be provided, and they should be simple to disengage from the system.

To connect the different components, make sure you use electrical wires that are properly rated and sized. Earthing and fuses may be required by the electrical provider.

7. Electricity Grid

Grid-connected solar systems are not possible without a utility grid. This grid is connected to the solar system, which allows it to store power for later use.

On-Grid Vs Off Grid: Choose the Best Power for Your Home

While fuel and electricity costs rise, many households are moving to solar power systems. The easiest solution that one can find is to opt for solar panel systems.

Curious about what solar panel systems are?

Sunshine is available to using abundance, and solar systems use efficient technology to harvest and turn this energy into electricity with pre-defined methods. Solar power panels serve the purpose of collecting solar energy and converting it through the photovoltaic (PV) effect into electric power. Many homes have a roof or backyard, which can be used for installing solar systems to generate electricity.

A home solar system must provide ample electrical energy to meet all home power needs. It provides AC power, as typically all households use AC power to operate lighting systems, electronics, appliances and machinery such as machines, refrigerators, mixers, fans, air conditioners, TVs and music systems.vThe price of the home solar power plant varies on its size and type.

On-grid and off-grid solar systems come in two types of solar power plants. Let’s look at the difference between the two:

1. Off-Grid Solar System

An off-grid solar system is well designed to generate enough power throughout the year to meet the needs of a household, even in the depths of winter, when there is less sunshine. However, since there is no electricity grid connection to an off-grid solar system, battery storage is necessary.

The high cost of batteries and inverters implies that the off-grid solar system is costly than the alternatives, so they are usually needed only in more remote areas far from the grid. Nevertheless, battery costs are reducing at a high rate, so the demand for an off-grid solar system is now increasing, even in cities and towns.

Advantages of An Off-Grid Solar System

  • Such an off-grid solar system can function independently and not rely on the grid.
  • They generate enough electricity that can be collected and used at night.
  • These are suitable for remote areas that do not have grid power access.
  • Shutdowns and infrastructure faults won’t affect the power supply.

2. On-Grid Solar System

On-grid solar systems are the most widely solar product used by homeowners. Such systems do not need batteries and are connected to the public electricity grid and use solar inverters. Any surplus solar power you produce is sold to the electricity grid, and the energy you sell is usually paid a feed-in tariff (FiT) or credits.

Solar inverters are an essential part of a residential solar energy system, convert the electricity your solar panels create into a form that can be used by the appliances, lighting, and other electronics. Learn more about solar inverters here.

Unlike an off-grid solar system, because of safety reasons, these are unable to work or generate electricity during a blackout. Because blackouts usually occur when the electricity grid is disabled, if the solar inverter had fed energy into a broken grid, it would endanger the safety of the people fixing the network’s faults. Most on-grid solar systems with battery storage can separate itself from the grid (known as islanding) and continue to supply some power during a blackout.

Advantages of An On-Grid Solar System

  • On-grid solar systems are incredibly cost-effective and easy to install.
  • By balancing electricity bills in just 3-8 years, you can recoup the cost of your expenditures.
  • Residential users can earn a passive income for the surplus energy generated by the system.

Choose Between On-Grid Vs Off-Grid Solar Systems to Fit Your Needs

Solar power systems are a form of clean, renewable energy, and they have many benefits depending on the type of system you chose. Knowing the advantages of both an on-grid and off-grid solar system, you can select the one according to your needs. With the right solar system and proper installation, you can have clean and cost-effective energy, without being worried about maintenance problems.