Energy storage plays a key role in ensuring that energy that is produced but not immediately used is stored so that not a single kilowatt is wasted. This is a particularly exciting challenge for solar energy, where production can vary in intensity depending on environmental conditions, with sunny hours producing abundantly and nights and cloudy weather producing nothing. In such times, stored energy steps in as a "lifeline" to ensure a steady supply.
Although the history of energy storage dates back to the early 1800s, today we have advanced technologies that go far beyond batteries, offering new possibilities for sustainability and efficiency.