Reload Power

Manual Bypass Facility

A manual bypass arrangement was integrated into the installation to provide additional operational flexibility.

This feature allows the client to supply the connected load circuits directly from the utility grid whenever desired while keeping the solar system connected solely for battery charging.

The bypass facility is particularly useful during:

Preventive maintenance

Inverter servicing

System troubleshooting

Equipment replacement

Periods when solar backup operation is temporarily unnecessary

This arrangement ensures that maintenance activities can be carried out without interrupting electricity supply to the connected loads.

System Description

The photovoltaic array consists of fifteen high-efficiency 500 W solar modules installed in an orientation that maximizes solar irradiation throughout the day.

The solar panels generate direct current (DC) electricity, which is routed through DC protection devices before entering the 120 A MPPT charge controller. The MPPT controller continuously tracks the optimum operating voltage of the PV array, maximizing energy harvest while charging the battery efficiently.

Energy generated by the solar array is stored in the 17.5 kWh lithium battery bank, providing sufficient reserve energy to power the client's essential electrical loads during periods of low solar generation and utility outages.

The stored DC energy is converted into high-quality 230 V AC power by the 10 kVA transformer-based inverter. Transformer-based inverters are known for their excellent surge-handling capability, electrical isolation, durability, and ability to support inductive loads such as pumps, refrigerators, and air-conditioning compressors within the inverter's rated capacity.

During normal daytime operation, the solar array supplies the connected loads while simultaneously charging the battery. Whenever solar production exceeds the load demand, excess energy continues charging the battery until full capacity is reached.

At night or during cloudy weather, the inverter automatically draws power from the battery bank to maintain continuous electricity supply.

SOLAR POWER SYSTEM INSTALLATION REPORT

Project Overview

This report presents the installation of a standalone solar photovoltaic (PV) power system designed to provide reliable, efficient, and uninterrupted electricity supply for the client's essential electrical loads. The system is engineered to maximize the utilization of solar energy during daylight hours while providing dependable battery backup during utility power outages.

The installation consists of a 17.5 kWh lithium battery bank, a 120 A MPPT solar charge controller, a 10 kVA transformer-based inverter, and fifteen (15) 500 W photovoltaic solar panels, giving a total installed solar generation capacity of 7.5 kWp.

The system is further enhanced with a comprehensive protection scheme, incorporating both DC and AC protective devices, isolators, circuit breakers, and a properly designed earthing and grounding network. An Automatic Transfer Switch (ATS) and a manual bypass arrangement were also integrated to ensure seamless power transfer, operational flexibility, and uninterrupted service under all operating conditions.

Conclusion

The installed solar photovoltaic power system successfully delivers a reliable, efficient, and intelligent energy solution for the client's gas station. The combination of a 9.0kWp solar array, two 12kVA hybrid inverters operating in parallel, and a 20kWh lithium battery energy storage system provides dependable power during daylight hours and ensures uninterrupted electricity during utility power outages.

The integration of a fully automated Automatic Transfer Switch (ATS), comprehensive DC and AC protection systems, robust earthing and grounding, and a manual utility bypass arrangement enhances the overall safety, operational flexibility, and reliability of the installation. These features ensure seamless power transfer, simplify maintenance activities, and maintain continuous operation of both essential and non-essential loads.

The completed installation represents a high-quality, professionally engineered renewable energy solution that improves power reliability, reduces dependence on the utility grid, supports efficient energy management, and is designed to provide many years of safe, efficient, and dependable service.

System Components

The installed solar power system comprises the following major components:

- Fifteen (15) × 600W Monocrystalline Photovoltaic (PV) Solar Panels

- Total PV Capacity: 9.0kWp

- Two (2) × 12kVA Hybrid Inverters

- Configured in Parallel Operation
- Total Inverter Capacity: 24kVA

- One (1) × 20kWh Lithium Battery Energy Storage System

- Automatic Transfer Switch (ATS)

- Manual Utility Bypass Arrangement

- DC and AC Protection Devices

- PV DC Isolators

- AC Isolators

- Circuit Breakers

- Surge Protection Devices (SPDs)

- Earthing and Grounding System

- Distribution Boards and Associated Electrical Accessories

---

3. System Description

The solar PV array consists of fifteen high-efficiency 600W photovoltaic modules, producing a total installed solar generation capacity of approximately 9.0kWp. The PV modules convert solar energy into direct current (DC), which is supplied to the hybrid inverter system.

The installation utilizes two 12kVA hybrid inverters connected in parallel, providing a combined inverter capacity of 24kVA. Parallel operation allows the load demand to be shared equally between both inverters, improving system stability, increasing output capacity, and providing redundancy.

Energy generated by the solar panels is prioritized for powering the gas station loads during daylight hours. Any excess solar energy is simultaneously used to charge the 20kWh lithium battery storage system.

The battery bank stores excess solar energy and supplies electrical power whenever solar generation is insufficient or when utility power becomes unavailable.

This configuration provides continuous energy availability while significantly reducing reliance on the public utility grid.

The installed solar photovoltaic power system successfully delivers a reliable, efficient, and intelligent energy solution for the client's gas station. The combination of a 9.0kWp solar array, two 12kVA hybrid inverters operating in parallel, and a 20kWh lithium battery energy storage system provides dependable power during daylight hours and ensures uninterrupted electricity during utility power outages.

The integration of a fully automated Automatic Transfer Switch (ATS), comprehensive DC and AC protection systems, robust earthing and grounding, and a manual utility bypass arrangement enhances the overall safety, operational flexibility, and reliability of the installation. These features ensure seamless power transfer, simplify maintenance activities, and maintain continuous operation of both essential and non-essential loads.

The completed installation represents a high-quality, professionally engineered renewable energy solution that improves power reliability, reduces dependence on the utility grid, supports efficient energy management, and is designed to provide many years of safe, efficient, and dependable service.

SOLAR POWER SYSTEM INSTALLATION REPORT

Project Title

Installation of a 20kWh Battery Energy Storage System with Dual 12kVA Parallel Hybrid Inverters and 9kWp Photovoltaic Solar Array for a Gas Station

1. Introduction

This report outlines the design, installation, testing, and commissioning of a solar photovoltaic (PV) power system installed for a client's gas station. The system was designed to provide a reliable, efficient, and uninterrupted power supply for both essential and non-essential electrical loads during daylight hours while also serving as a dependable backup source during utility grid power outages.

The installation aims to reduce dependence on the utility grid, lower operating costs, improve energy reliability, and ensure continuous business operations. The system was carefully engineered to achieve maximum efficiency, optimum battery performance, and long-term operational reliability through the incorporation of appropriate protection devices, earthing systems, and automatic power transfer mechanisms.

---

2. System Components

The installed solar power system comprises the following major components:

- Fifteen (15) × 600W Monocrystalline Photovoltaic (PV) Solar Panels

  

  - Total PV Capacity: 9.0kWp

- Two (2) × 12kVA Hybrid Inverters

  

  - Configured in Parallel Operation

  - Total Inverter Capacity: 24kVA

- One (1) × 20kWh Lithium Battery Energy Storage System

- Automatic Transfer Switch (ATS)

- Manual Utility Bypass Arrangement

- DC and AC Protection Devices

- PV DC Isolators

- AC Isolators

- Circuit Breakers

- Surge Protection Devices (SPDs)

- Earthing and Grounding System

- Distribution Boards and Associated Electrical Accessories

---

3. System Description

The solar PV array consists of fifteen high-efficiency 600W photovoltaic modules, producing a total installed solar generation capacity of approximately 9.0kWp. The PV modules convert solar energy into direct current (DC), which is supplied to the hybrid inverter system.

The installation utilizes two 12kVA hybrid inverters connected in parallel, providing a combined inverter capacity of 24kVA. Parallel operation allows the load demand to be shared equa