Battery and stationary energy storage technology adds flexibility to power systems and allows for the best use of variable electricity sources like solar and wind energy while ensuring consumers continue to receive continuous electricity supply.
Fremont, CA: Future power generation will most likely be a combination of low-carbon sources such as renewables, hydro, and nuclear power. However, while renewable energy sources such as the sun and wind now provide a significant portion of our energy, they are unreliable, producing energy only at certain times of the day.
To fully reap the benefits of renewables, storing some of the energy produced and using it during peak demand is necessary. One method is to use stationary energy storage, such as batteries.
Old vs. New Technologies
To deal with the availability of renewable energy generation and fluctuations in demand throughout the day, commercial, grid-scale battery storage is required; it must be large, stable, and long-lasting.
The use of vanadium instead of lithium is one promising area. Vanadium redox (or flow) batteries are determined on the surge of electroactive species. They are fully constricted, non-flammable, compact, reusable over semi-infinite cycles, and have a lifespan of over 20 years. If the storage tanks are large enough, these batteries can provide near limitless energy capacity.
Although vanadium is safer and more easily accessible than lithium, the metal's high cost prevents vanadium-based batteries' commercialization. Success is dependent on either the price of the metal falling or enhancing the battery chemistry or both.
In a carbon-constrained world, battery and stationary energy storage technology is critical to success. It adds flexibility to power systems and allows for the best use of variable electricity sources like solar and wind energy while ensuring consumers continue to receive continuous electricity supply.
Utility batteries, also known as grid-scale batteries, are stationary batteries with capacities ranging from several to hundreds of megawatt-hours. Grid-connected storage systems are used for various applications that help balance services and reduce grid congestion and power outages.
They can link to the distribution or transmission network and support the grid by providing system operation services and solar photovoltaic and wind generators and withhold energy at peak generation and grid reinforcements. Meanwhile, batteries help to stabilize the grid, which benefits ancillary services.