On-Grid Solar System

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The population demands clean and reliable energy. In the coming years, in contrast to renewable bright and green energy sources, they will be more reliable sources of energy that align with the future energy supply and its demand and overall align with green sustainable energy sources, having a considerably lower carbon footprint emission rate.

Renewable energy is the most reliable, continuous energy source that can fulfill our supply-demand needs.

The ECP System and Energy Sources

One of the other innovative solutions getting the world's attention is the ECP system, which ensures that buildings, houses, and rooms are warm and comfortable throughout the solutions.

In contrast to solar solutions, other fossil fuels, such as coal and hydel, are degradable and running short, and even in the current era, these energy sources are not fulfilling the needed demands. Moreover, in the coming years, this energy source will not be the energy that we can say is green and good for the environment, or in short, it will not be a sustainable solution.

Types of Solar Energy Solutions

Solar energy comes in different green solutions: on-grid, off-grid, hybrid, and solar. The types of systems vary depending on the customer's needs and other parameters.

This article highlights the on-grid system and all the parameters needed to deploy a solar PV system on your rooftop.

The Growing Popularity of Clean Electricity

Clean electricity is the future, and its popularity is skyrocketing. Solar energy has various advantages, and businesses are beginning to consider it instead of relying on fossil fuels.

Why is the World Considering Moving to a Green Energy Source?

Solar energy is the energy source, and the medium is sunlight (photon). The solar power system works by converting photon light into reusable electricity.

For this purpose, the solar PV cell is designed to transform the solar light into a usable form of energy when sunlight strikes it. The input of the Solar PV cell is Photon light, and the output is DC. The DC output is then injected into the inverter to convert it to the AC energy source, a more reusable energy source (as our loads take AC input). From the inverter outlet, the Power is distributed to the entire load of houses or buildings.

Understanding the On-Grid System

What is an On-Grid Solar System?

Before installing a solar PV system, let's move to the on-grid system and other drill details.

The on-grid or grid-tier system is the solar PV system connected to the grid station (another energy source). The objective of this type of system is to fulfill the electricity need if no PV source of electricity is available.

On cloudy days, the PV electricity does not produce the desired electricity that aligns with the house load demands. To cope with this problem, the on-grid and Solar power systems are deployed to fulfill the electricity need through the grid until the PV production becomes stable.

Advantages of an On-Grid System

Another advantage of installing an on-grid solar PV system is lowering the electricity bill or even getting a negative bill. The solar panel is the only source that results in a zero electricity bill. Hence, the return on investment (ROI) process is quicker on the entire solar system's upfront cost.

Steps to Consider Before Installing a Solar Power System

1. System size

2. Number of panels required

3. Inverter requirements

4. Net-Metering in On-Grid Systems

5. Estimated cost of the system

1. System Size Calculation

The power size is calculated using different methods for the total power consumption of the connected loads. Those methods include:

• Calculate system size through sanctioned load

• Via units per month

• Square feet of the building or house

Breaking down all three methods to calculate the electricity consumption size of your house.

Calculate System Size Through Sanctioned Load

The sanction load information is available on the generated bill. Take that sanction load and multiply it by 1.5. The result will be your total load consumption or the system size.

Example:
Suppose 2.84 is the function load; its total system size becomes 4.26 kW. Assuming the load is increased in the future, the system size becomes 5 kW against the 2.84 function load to be on the safe side.

Calculate System Size Through Electricity Bill Units

Another approach to calculating the system size for an on-grid system is by electricity bill units. This can be done by taking the average of yearly units and then dividing it by 30 to get the daily power consumption. Then, divide the results into 5 hours (approximate sunshine hours).

Example:
Let the average unit be 500. Then, divide it by 30 to get the daily power consumption. Then, divide the results by the total sunshine hours.

500 ÷ 30 = 16.6 kWh/day ÷ 5h = 3.33 kW ~ 4 kW is the required system size.

Calculate System Size Through Area

The third approach to getting the system size is to have the area information in square feet.

Example:
If you have a rooftop area of 50 × 20 = 1000 sq. feet, multiply this figure by panel dimensions (length × width).

If the panel is 7 ft × 3 ft = 21, then:
1000 ÷ 21 = 47 panels required

Multiply 47 by per-panel wattage (let's assume 480W):
The desired system size is 480 × 47 = 18.8 kW ~ 19 kW.

2. Number of Panels Required

The number of panels is calculated by dividing the system size by the per-panel wattage.

Example:
If the panel wattage is 580W, and the system is 10KW, then:
10,000W ÷ 580W = 17.2 panels (rounded to 17).

3. Inverter Size Requirement

The inverter size is calculated based on an assumption to connect the on-grid inverter with the grid-tied system.

The inverter size must be 30% larger than the system size.

If your system size is 5 kW, the inverter must be 5 kW or more significant.

4. Net Metering in On-Grid Systems

Net metering is the main component in the on-grid power system.

• If solar panel production is low, then the average solar output cannot fulfill the power needs of connected loads.

• If the power from the solar power system fulfills the load's total consumption need, the surplus electricity is sent to the grid station via a net meter or green meter.

• The unit ratio is 1:1, which means if your solar power system sends 1 unit to the grid station, you will be charged for that 1 unit.

If the system sends and produces more units than the home load needs, then the surplus units are sent to the grid. Hence, the bill will be zero.

5. Estimated cost of the system

The estimated cost of the system varies depending upon:

• The PV system structure (galvanized structure or elevated structure) you are deploying,

• Different brands offer different inverter costs, depending on the inverter features and manufacturing warranty they are offering.

• Wiring and AC/DC earthing cost varies from material to material.

• Net-metering/ price for load extensions, green meter.

To get the estimated cost quote, complete the form or contact us at +92-310-000-29-69.

The ongrid system is the more reliable and maintenance-free system. The on-grid solar PV system is a more recommended source for urban areas where 3-phase is connected to get the most out of it. However, if you are interested in installing the on-grid solar power system in Pakistan, contact the Luminexa team for a quotation and other information related to solar power systems.

The on-grid system is the more reliable and maintenance-free system. It is highly recommended for urban areas where a 3-phase connection is available.

However, if you are interested in installing the on-grid solar power system in Pakistan, contact the Luminexa team for a quotation and other information related to solar power systems.