Energy Management for Stand-alone Photovoltaic Battery-Supercapacitor Hybrid Storage System

Abstract

In today\'s technology-driven world, electricity is one of the most important things in our daily lives. Because we all don\'t know that renewable energy sources run out immediately. So it is time for us to shift our focus from conventional energy sources to unconventional energy production. The hybrid system can be used both in industry and at home. In this project we will generate electricity from unconventional and conventional sources. All renewable energy sources, such as solar energy, wind energy, are used to produce electricity in industry. This project deals with the use of a solar-electric-wind system in the design of a hybrid energy system. An algorithm is also proposed to be used to isolate an efficient power plant with a supercapacitor. This can reduce the need to maintain electrical cables and we can manage the load demand at very high times. The results show that the renewable hybrid energy system and it creates a pollution-free environment. This invention relates to a natural source method and a second source method for generating electrical energy. From all lines of research, such a system can be successfully implemented in any industry or location.

Introduction

The text discusses a renewable energy-based hybrid power system that combines solar and wind energy with advanced energy storage technologies to provide clean, reliable, and sustainable electricity. Since traditional energy sources are decreasing and renewable sources are environmentally friendly, hybrid systems help ensure continuous power generation by using solar energy during sunny periods and wind energy during low sunlight conditions.

The system uses a battery–supercapacitor hybrid energy storage system (HESS). Supercapacitors provide fast charging and discharging capability, handling sudden load changes and reducing stress on batteries. This improves battery life, efficiency, and overall system reliability.

Problem Identification:

• Solar and wind energy are intermittent, causing unstable power supply.
• Battery-only systems suffer from high stress during peak loads and frequent charging cycles.
• Lack of proper energy management reduces efficiency.
• Remote areas require reliable standalone renewable energy solutions.
• Conventional systems lack fast-response storage devices like supercapacitors.

Working Principle:
The solar panel generates DC power, which is regulated through a boost converter. The energy is stored in both the battery and supercapacitor. The supercapacitor manages sudden power demands, while the battery provides continuous energy supply. An intelligent controller monitors voltage and current conditions and controls power sharing between the storage units. An inverter converts DC power into AC power for operating electrical loads, while an LCD displays system parameters.

Main Components:

• Solar panel
• Solar charge controller
• DC boost converter
• Supercapacitor
• Battery storage
• Arduino Uno controller
• Current sensors
• LCD display
• Inverter
• PCB and AC load system

Results and Analysis:
The developed photovoltaic battery–supercapacitor hybrid system showed improved energy efficiency, voltage stability, and power quality. Solar output analysis showed maximum power generation around noon due to higher solar radiation. The battery charging system maintained stable charging and reduced battery stress. The supercapacitor provided very fast response during sudden load changes, with response times around milliseconds, improving system reliability. The inverter achieved stable AC output with efficiency up to approximately 93%.

Advantages:

• Provides continuous renewable energy supply.
• Reduces battery degradation and maintenance cost.
• Improves power stability during load fluctuations.
• Reduces dependence on fossil fuels.
• Suitable for remote and standalone applications.

Applications:

• Remote electrification systems
• Industrial backup power
• Domestic renewable energy systems
• Rural power supply
• Standalone solar applications

Conclusion

Developing hybrid systems is one of the simplest and most efficient solutions for generating electricity compared to non-renewable energy resources using supercapacitor. Not only is it expensive but it also does not cause environmental damage. Also, it can be used to generate electricity in hilly areas, where it is difficult to transfer electricity in normal ways. Depending on the need the setting can be determined. All the people in the world should be encouraged to use extraordinary resources to generate electricity so that they can be relatively reliable. Longevity, minimal care is one of your best places. It just needs a higher initial investment. As we know the mixed system has additional production costs per unit but uses the resources available effectively. This Hybrid program is also capable of recovering from any accidental or unwanted situation. And the hybrid system is able to harness power in remote and rural areas. So it is clear that the Hybrid system is the best choice.

References

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Copyright

Copyright © 2026 Mr. Dhananjay Gabhane, Dr. Nilesh Bodhne, Prof. Manjeet Sakhare. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.