Renewable Energy Current Affairs - 2020
The researchers, including those from Queen Mary institute of London in United Kingdom (UK) have developed a new dielectric capacitor, a device that stores energy (like battery). The study was published in journal Nature Communications.
Key Findings about Device
Working: The researchers found that by pressing and folding a polymer film capacitor, they were able to store 30 times more energy than best-performing commercially available dielectric capacitor. The researchers took the inspiration for this new energy storage device from a French pastry called croissant which is made by folding multiple layers of dough.
Function: The study noted that dielectric capacitors in general have ultrahigh power density which makes them suitable for technologies that require accumulating energy over a period of time and then releasing it very quickly like motor drives and even space vehicle power systems. Until now, such capacitors had limitation of storing low amounts of energy but this new finding promise a significant impact on the field of pulse power applications and could produce a step-change in field of dielectric capacitors, which was so far limited by their low energy storage density.
Significance: As this is the highest energy density ever reported in a polymer film capacitor, so the advances in technology may pave a way for low-cost, efficient, and environmentally-friendly electric energy storage systems for wind as well as solar sources. Even though storing energy can be tricky and expensive, especially with renewable energy sources, but with this technique, large amounts of renewable energy can be stored.
Tags: dielectric capacitor • Renewable Energy • Science and Technology
India has a target of 175 GW of clean energy by 2022. In order to achieve the target, India plans to set up solar and wind projects on fallow lands along the international border with Pakistan.
Currently India is generating 82,580 MW of solar power which is 23% of its total power production.
Key features of the project
- A 30 km by 20 km wide parcel of land is identified along the border in Kutch district of Gujarat to implement the project.
- As the land allocated is fallow, it will help tackle the problem of agricultural land being diverted for such projects.
- The proposed energy power parks will generate 2,000 MW of energy each
- The project is being constructed on deserted lands with no habitats.
Concerns and Solutions
- The border where the project is to be implemented is fragile. Weapon funneling and hawala money operations are predominant in these areas. However, GoI has recently launched several steps to fortify border
- CIBMS – Comprehensive Integrated Border Management System was launched to deploy technological solutions on pilot basis.
- Smart Fencing
- Solar Powered BSF posts – The border areas were fitted with solar power panels to help the jawans recharge their communication and safety gears. Earlier soldiers guarding the border had to travel 4 to 5 kms to charge their gadgets.
- Also, other technologies like underground monitoring sensors, laser barriers, night vision devices, surveillance radar help monitor the border.
- Recently, the renewable energy sector has been seeing steep fall. This is was mainly due to lack of interest from the investors and developers. The Solar Energy Corporation of India in September 2019 saw its last two auctions go under subscribed. The project is a boost for investors as the area and solar output planned is vast!
The GoI aims to meet the needs of the people living in the borders. In order to achieve this, GoI allocated 8,606 crores of rupees in 2018 to meet their needs. The umbrella scheme Border Infrastructure and Management that contains 60 projects includes tourism, cleanliness mission, supplying drinking water, community centers, drainage, supply of drinking water, etc. The Solar Power Grid will aid the projects by providing sufficient power.
Solar Power in India
Till August 2019, India’s installed solar power was 30 GW. India has a potential of 5000 trillion KWhr per year. It exceeds the possible energy output of all fossil fuel energy reserves in India.
Till March 2019, of all the states Rajasthan leads in solar power producing 3,226 MW of solar power. It is followed by Punjab, UP, Uttarkhand and Haryana.