Is Extremadura's lithium mine losing a research permit?

Opponents of the mine are winning. It has lost its research permit and faces a lengthy battle in the courts. But the battle over lithium deposits in Cáceres and elsewhere in the surrounding region of Extremadura highlights the environmental and economic trade-offs in the transition to cleaner energy.

Is Cáceres against lithium?

“We are not against lithium; we are against this mine, because of where it would be.” Another opponent is Montaña Chaves — named after the Virgin of the Mountain, Cáceres’ patron saint. The mine’s entrance would be just below the sanctuary devoted to the saint.

How are ESS batteries made?

ESS’s long-duration batteries are manufactured using iron, salt and water, and offer customers, safe, low-cost and sustainable energy storage.

What is ESS Energy warehouse TM?

As an indication of this demand, ESS has already announced customer orders from ENEL in Spain for the delivery 17 ESS Energy Warehouse™ iron flow battery systems, providing a combined capacity of 8.5 MWh, which will be used to support an EU-backed solar farm and provide resilience for the local power grid.

Who is ESS Inc?

Established in 2011, ESS Inc. enables project developers, utilities, and commercial and industrial facility owners to make the transition to more flexible non-lithium-ion storage that is better suited for the grid and the environment. For more information, visit

Do ESS Iron-Flow batteries degrade with cycling?

ESS iron-flow batteries do not degrade with cycling and are produced using earth-abundant materials, making them a highly cost-effective long-duration energy storage option capable of addressing a wide range of use cases.