Batteries provide three primary benefits: emergency backup power, financial savings, and maximizing the self-supply of solar electricity.

FREMONT, CA: There are three primary reasons to purchase a battery: emergency backup power, cost savings, and optimizing solar self-supply. In addition to these reasons to invest in energy storage for the house or business, several personal and societal benefits are associated with energy storage. Here are a few benefits of energy storage, separated into those for home and business owners and those for the grid and society.

Energy storage advantages for households and businesses

The four key benefits of energy storage discussed are resilience, cost savings, renewable integration, and additional grid benefits.

Energy storage contributes to resilience: Resilience in the energy business is the ability to keep the power on despite bad conditions, such as big storms or other utility disruptions. And that is precisely what energy storage delivers: backup power in an emergency. When energy storage is combined with a solar panel system, the energy organizations can keep the lights on during a grid outage. Today, most homeowners and business owners add energy storage primarily for the resilience benefit.

Energy storage has monetary benefits: Although backup power is the primary reason people install energy storage systems today, storage systems can give financial benefits in certain situations. If the energy businesses are on a time-of-use rate or if they have demand charges, storage can bring the most significant economic benefits. In either case, they can draw power from the battery instead of the grid at times when they would be charged at a higher rate. Additionally, suppose they do not have access to one-to-one net metering. In that case, energy storage can help them maximize the financial benefits of solar by allowing them to consume more of the solar they create on-site.

Energy storage facilitates the integration of renewables: One of the most significant advantages of energy storage is that it enables the grid's integration of renewable energy. In this regard, it is a technology enabler for other sustainable energy technologies. This is how—the most significant disadvantage of renewable energy systems is their variable power generation. In contrast to the electric grid, designed to handle fossil fuel-fired power plants that may activate to meet demand, renewable energy resources produce when the sun and wind are shining and blowing. As more renewable energy plants are constructed, they must better match their output with electricity consumption.

When coupled with renewable resources, energy storage can make renewable energy "dispatchable" or able to be saved for use when it is required. In other words, energy storage enables wind and solar to run nearly identically to conventional power plants, minus the emissions! This is when energy storage can be helpful.

Energy storage gives added grid advantages: Energy storage benefits the system in more ways than just enabling the addition of renewable energy. Energy storage can offer the majority, if not all, of the services required to keep our electrical system operational.

Today, a variety of various types of services regulate and support frequency. For instance, the electrical grid operates at 60 hertz in the United States. A frequency deviation of more than a few tenths of a hertz (for example, 0.5 hertz) might result in cascading blackouts. Another technology that can provide frequency support and reduce the requirement for fossil fuel-powered grid resources is energy storage.

And energy storage can play an even larger role than that: it can provide fast-acting, quick-response injections of electricity onto the grid as an emergency measure, reserves, and even black-start capabilities. All of this suggests that energy storage is a very adaptable and valuable resource that may deliver numerous benefits to the system.