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THEME PAPER


              i.   Energy          Storage        membrane. The power             and small organisations
                   for         Renewables         and energy capacity of          will get an opportunity
                   Energy storage is one          a flow battery can be           to trade energy with
                   of the most important          dynamically scaled up           their local communities.
                   factors in the integration     or down based on the            Decentralised       trade
                   and     adoption      of       size of the electrolyte         of     energy     would
                   renewable        energy.       tanks. Flow batteries also      require a decentralised
                   Efficient and economical       have high efficiency and        marketplace         build
                   storage of renewable           low maintenance cost            on          decentralised
                   energy plays a significant     [S.OuldAmrouche et. al]         technology           like
                   role  in    building   a       Another way of storing          Blockchains. Blockchains
                   modern    power    grid.       energy chemically is in         are    distributed   and
                   It can reduce power            hydrogen. In a fuel cell,       decentralised     ledgers
                   fluctuations, enhance the      hydrogen and oxygen             managed by multiple
                   electric system flexibility,   react to form water             parties    through      a
                   and enables the storage        to produce electricity.         common         consensus
                   and dispatching of the         [S.OuldAmr ouche                protocol. No single party
                   electricity   generated        et.       Al,       2021]       has control over the
                   by variable renewable          Mechanical methods to           transactions happening
                   energy   sources    such       store renewable energy          in the Blockchain system
                   as  wind    and    solar.      includes     compressing        and hence consistency
                   [S.OuldAmrouche et. al]        air,      hydro-pumped          is maintained by all
                   Energy           storage       storage that includes           the    parties   through
                   technologies can broadly       pumping water to a high         consensus.
                   be classified as chemical      terrain to be used later
                   and mechanical storage.        in a hydropower station,    WASTE MANAGEMENT
                   Most chemical storage          using    synthetic   old,   Cities  offer   opportunities
                   techniques    have     a       quartzite rocks and silica   of economic upliftmentand
                   moderate to high carbon        sand to store energy        accomodate           growing
                   footprint. These include       from a concentrated solar   population and their carbon
                   lithium-ion,   lead-acid,      power plant [SEIA, 2021]    footprints. Waste management
                   nickel-zinc     batteries      [Ho, Clifford K.,2019].     is one  of the problems cities
                   along with other types.        Some of these methods       are   facing.  Waste    from
                   These batteries are very       like     hydro-pumped,      industries,  households  and
                   difficult to scale up for a    compressed     air   and    other   establishments    are
                   large power generation         hydrogen storage  can       dumped in landfills and
                   unit. Flow batteries are       be used for long term       harmful chemicals/gases are
                   rechargeable    batteries      storage of energy.          emitted into the environment
                   in  which    electrolytes                                  leading to climate change.
                   flow   from    one    or   j.   Peer-to-peer     energy    As per the central pollution
                   more tanks to one or           trade   on    Blockchain    control board (CPCB) of
                   more     electrochemical       With the decentralisation   India, the per capita waste
                   cells separated by a           and digitisation of the     generation has increased at an
                                                  power grid, individuals



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