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Thermal Energy Storage (TES):
innovation serving decarbonization

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More renewables and more volatility in demand

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means there’s a need for flexibility.

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There will be a need for suitable solutions.

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Today, this flexibility is predominantly provided

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by thermal power plants,

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facilities that over time we want to decommission,

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but also by hydropower plants.

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Therefore, there will be a need
to replace the flexibility that we’ll lose

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as the plants are gradually closed.

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So, how can this be done?

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One solution is undoubtedly storage facilities.

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This thermal battery is possibly

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the largest that’s ever been developed

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with this technology anywhere in the world.

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Our intention is to use it mainly
in conjunction with renewables,

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so this battery, which is filled with rocks,

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will be heated via electric heaters powered
by clean, sustainable, green energy.

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This heat can then be recovered
to be reused, for example,

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in production processes that require heat,

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which is currently produced from fossil fuels,

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or to generate electricity.

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Such a technology would enable,

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depending on solar or wind power and no gas.

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I expect that now after Enel gets the confidence

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about this technology, a massive implementation,

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not just in power plants,
but in an industrial location,

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in residential heating where heating
is required for the homes.

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Our objective is to decarbonize all the sectors

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that employ hot steam,

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using renewables upstream instead.

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The renewable sources will heat stones or sand,

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therefore completely eliminating the dependence on gas.

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We also want to eliminate
the dependence on rare earth elements,

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valuable raw materials such as lithium,

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which are used in other storage technologies.

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