Disclaimer: Copyright infringement not intended.
Gravity energy storage is emerging as a viable solution to address a major challenge of solar and wind power which is intermittent supply.
Type of System |
Gravity energy storage is a new technology that stores energy using gravity. It has the potential to be a cornerstone of sustainable energy systems, with its capacity for long-term energy storage and low maintenance. |
Working Principle |
Involves lifting a heavy mass (such as water, concrete blocks, or compressed earth blocks) during periods of excess energy generation and releasing it to generate electricity on demand |
Types of Weights |
Water, concrete blocks, compressed earth blocks |
Advantages |
|
Limitations |
|
Applications |
|
Problem Addressed |
It helps tackle the intermittency of solar and wind power, providing energy during periods without sunlight or wind, essential for a stable and reliable energy supply. |
Renewable Energy Target |
FOR EXAMPLE: Malaysia aims to increase its renewable energy capacity from two percent in 2018 to 20 percent by 2025. |
Role of Gravity Storage |
It provides a sustainable long-term option, complementing other storage systems and balancing supply and demand on the grid. |
Comparison with Battery Storage |
Battery storage is popular but faces challenges such as short lifespan, need for regular maintenance, and environmental harm from production and disposal. In contrast, gravity storage offers durability and minimal maintenance. |
Environmental Impact |
Gravity storage avoids harmful chemical reactions, reducing environmental impact and disposal issues, an important consideration for sustainability. |
Cost Effectiveness |
It is more cost-effective for large-scale applications, with lower-level costs of energy and storage compared to battery storage. |
CASE STUDY |
A recent study found that both gravity and battery energy storage systems increased solar energy penetration by up to 7.26 percent. However, gravity storage outperforms in terms of lifetime costs and energy efficiency. |
Reason for Efficiency |
Gravity storage has a longer lifespan and higher discharge capabilities. Batteries are limited by their depth of discharge, which is the percentage of total capacity discharged in use. |
READ ABOUT
India targets 50% clean energy, focusing on solar
India, third largest producer of solar power
Source:
PRACTICE QUESTION Q.Gravity energy storage systems have been proposed as a viable solution for large-scale energy storage, particularly in the context of renewable energy integration. Discuss the working principle of gravity energy storage and its potential role in enhancing energy security in India. (250 words) |
© 2024 iasgyan. All right reserved