A hybrid energy storage system combines two or more energy storage technologies, such as batteries, flywheels, and supercapacitors, to provide better performance than any individual technology. Hybrid systems take advantage of complementary renewable energy sources to ensure continuous and reliable power production. They can decrease environmental pollution and reduce the need for fossil fuels while promoting socioeconomic development through job creation and distributed power generation with fewer transmission lines. However, challenges include site dependence of renewables, designing optimal hybrid system configurations, conducting cost-benefit analyses, and developing efficient energy management strategies through real-world testing of prototypes.

1. Hybrid Energy Storage System For Renewable
Energy Applications
Course: ESL -772- Energy Storage
Adam Ali Isak 2022ESR2555
Department of Energy Science and Engineering
Indian Institute of Technology, Delhi

2. Introduction
A Hybrid Energy Storage System (HESS) is made up of two or more types of
energy storage technologies that work together to outperform any single
component energy storage device, such as batteries, flywheels, supercapacitors,
and fuel cells.

3. Introduction
 Uncontrolled Renewable energy sources essentially have random behaviors.
E.g: Solar, Wind, etc.
 Power production from Uncontrolled sources is independent of human
intervention.
Hybrid power systems may contain controlled and uncontrolled energy
sources and energy storage elements with appropriate control systems
Stand-alone hybrid power systems take advantage of the complementary
nature in profile of the renewable energy sources.
Hybrid power systems ensure continuous and reliable power production.

4. Why We Need Energy Storage?

5. Hybrid Energy Storage System

6. Comparison of Different Energy Storage System Technologies

7. Hybrid Energy Storage Solutions & Applications
The proposed renewable energy based system helps in:
Decrease environmental pollution
Reduction of air emission
Energy saving
Reduces production and purchase of fossil fuels
Decrease of global warming

8. Hybrid Energy Storage Solutions & Applications
Socioeconomic development
Develops employment opportunities in rural areas
Fuel supply diversity
Diversity of energy carriers and suppliers
Distributed power generation
Reduces requirement for transmission lines within the electricity grid

9. Challenges of Hybrid Energy Storages
• Site dependence of renewable sources
Site survey with long term data acquisition & forecasting
• Hybrid renewable energy system design
Configuration and sizing of the hybrid system components with the
objectives:
Supplying the power reliably under varying atmospheric conditions
Minimizing the total cost of the system
Maximizing the system efficiency by efficient energy flow management
strategies

10. Challenges of Hybrid Energy Storages
• Economic viability
Cost-benefit analysis of hybrid system for reasonable payback period
• Real world application
 Design of power conditioning devices with maximum power point
operation of energy sources
 Optimal energy management strategies and their testing with
laboratory prototype hybrid controller

11. Thank You