Thermal Battery Plant Unveiled in Andhra Pradesh (Download PDF)


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World’s first-ever thermal battery plant owned by Bharat Energy Storage Technology Private Limited (BEST) was inaugurated in Amravati, Andhra Pradesh. Plant aims to create new energy storage form that is expected to have commercial applications.

Image of Thermal battery plant unveiled in Andhra Pradesh

Image of Thermal Battery Plant Unveiled in Andhra Pradesh

Image of Thermal battery plant unveiled in Andhra Pradesh

While maintain low carbon footprint & less dependent on external factors like weather.

Image of heat storage

Image of Heat Storage

Image of heat storage

Key Facts of Plant

  • Plant will begin its commercial operations from May 2019.

  • BEST is planning to create battery capacity of 1000MW.

  • This is expected to be upgraded to 10GW capacity by 2025.

  • Thermal battery is based on alternative sources of energy production, & its presence is expected to reduce dependence on fossil fuels.

  • It provide energy solutions for electrical grids, transport & telecom services.

  • This plant is based on technology patented in India by Dr Patrick Glynn in 2016.

Working of Thermal Battery Technology

  • Thermal battery use thermal energy to operate i. e. energy created by temperature differences.

  • Energy transfer in this battery helps to store heat when heat travels from one part of battery setup to other.

  • For this transmission, thermal battery consists of 2 parts viz. cool zone (sink) & hot source (source. )

  • Both these sides consist of compounds known as phase-changing materials (PCMs), which can change their state of matter on basis of physical & chemical reaction.

  • When sink of thermal battery receives heat, it transforms physically or chemically, thereby storing energy, while source cools down.

  • During operation, sink is cooled down, so it releases stored energy, while source heats up.

  • System can derive heat from any source, which makes thermal battery very versatile.

  • For power transmission, thermal batteries can function as long as there is heat source.

It is different from Conventional battery technology

  • Conventional battery technology work on basis of electrical energy & is based on system of charging & discharging cycles that are driven by electricity.

  • Example: Lithium-ion (Lion) battery, staple of many electronic devices, consists of electric charges being transferred from electrodes. Energy is derived from this battery, when lithium atoms turn into lithium ions (Li+), & get stored when this reaction reverses.

Benefits of Thermal Battery

  • Thermal battery is hailed as perfect alternative to non-renewable energy sources.

  • It is considered to be even better than solar energy.

  • It will be energy source for power telecommunications services, electrical grids, electric vehicles (electric buses, on single charge expected to run for upto 800kms).

  • It has lesser heat sensitivity & low carbon footprint these are better than Li-ion batteries & outperform solar panels, which have expensive maintenance & high weather-dependent operation.

  • Solar batteries cannot be charged or utilised to their optimum potential after sunset or even when skies are densely clouded.

  • Thermal batteries are priced at par w/widely used Lithium-ion batteries, but they have low carbon footprint & last longer.

- Published/Last Modified on: November 29, 2018

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