12 Reasons to Use battery energy storage

Battery energy storage systems help the electricity grid.

Share This Post:


How do battery energy storage systems help the electricity grid?

Battery Energy Storage Systems (BESS) play a vital role in supporting and enhancing the capabilities of modern electricity grids. They can benefit the electricity grid in multiple ways:

Grid Stabilization:

Battery energy storage plays a crucial role in grid stabilization by quickly absorbing or releasing electrical power in milliseconds. This rapid response ability is essential for ensuring frequency and voltage stability within the power grid. As more renewable energy sources like solar and wind power are integrated into the grid, their intermittent nature can create fluctuations in supply.

This is where battery energy storage comes in handy, providing a reliable solution to balance out these variations and maintain a consistent flow of electricity. Grid stabilization is vital for preventing power outages and blackouts, as it helps regulate the electrical system’s overall performance. By utilizing battery energy storage systems, grid operators can effectively manage the power demand and supply fluctuations, ensuring that the grid remains stable and reliable even during peak usage periods or unexpected events.

In addition to stabilizing the grid, battery energy storage also enhances the overall efficiency of the energy system. By strategically deploying these storage solutions at key points in the grid, excess energy can be stored during off-peak hours and discharged during high-demand times, optimizing the utilization of renewable energy sources and reducing reliance on fossil fuels.

Peak Shaving:

Peak shaving is how battery energy storage helps keep our electricity system running smoothly. So, imagine this – during the day, when everyone is at work or school, not using a lot of electricity, the batteries store up all the extra electricity that’s being made. Then, when everyone comes home at night and turns on their TVs, lights, and other gadgets, the batteries jump into action!

They release all that stored-up electricity back into the grid to help meet the high demand. This is like having a secret stash of energy ready to go when we need it most. By doing this, battery energy storage helps us avoid having to build more power plants just to handle those busy times. It’s kind of like having a backup plan in place so that we don’t run out of electricity when everyone needs it the most.

Plus, it also means we don’t have to spend as much money on upgrading our power lines and equipment because the batteries can step in and help out during those peak times. It’s like having a superhero for our electricity system! So, next time you turn on your lights or charge your phone, remember that there are smart batteries out there working hard behind the scenes to make sure you always have the power you need.

Load Leveling:

Load leveling is a crucial process in the world of energy storage. It involves charging batteries when an excess of electricity is generated and then discharging them when the electricity demand is high. This helps to balance out the fluctuations in energy generation and consumption, which is super important for keeping our power systems running smoothly.

When batteries are used for load leveling, it can help power plants operate more efficiently by ensuring that electricity is available when it’s needed most. This process also helps to reduce the strain on our infrastructure, like power lines and transformers, which can wear out faster if they are constantly dealing with sudden spikes and drops in electricity flow. So, by using batteries for load leveling, we can make our energy systems more reliable and help them last longer and operate more efficiently in the long run.

Integration of Renewable Energy:

Renewable energy sources, such as solar and wind power, come from nature and don’t run out like fossil fuels. But here’s the thing – sometimes the sun isn’t shining, or the wind isn’t blowing, which means we can’t always rely on these sources to power our homes. That’s where battery energy storage systems come in! When working at full blast, these systems work like big rechargeable batteries that store extra electricity from solar panels or wind turbines. So, when it’s dark or calm outside, we can use the stored electricity to keep the lights on and our devices running.

Imagine you have a big jar where you can store your favorite candy when you have extra and then take some out later when you’re craving something sweet. That’s kind of how battery energy storage systems work with electricity! By having these systems in place, we can ensure that even when the sun sets, or the wind dies down, we still have a steady supply of power to keep our homes and communities running smoothly. Not only do these battery systems help us use more renewable energy without worrying about blackouts, but they also make our electricity grid more flexible and efficient.

They act as a backup plan, ensuring we always have a reliable power source even when Mother Nature isn’t cooperating. Plus, by storing excess energy during sunny or windy days, we can reduce waste and make sure that every bit of clean electricity generated is put to good use. So, next time you see a solar panel on a roof or a wind turbine spinning in the distance, remember that there’s a clever system in place to capture and store all that green energy for when we need it most.


Reducing Transmission Congestion:

One of the things about battery energy storage is that it can help ease traffic jams on power lines. Imagine if you had a big highway where many cars were trying to squeeze through simultaneously

– it would be a mess, right?

The same thing can happen with electricity when too much of it is trying to travel long distances through transmission lines. This can cause congestion, like rush hour traffic on a busy road. But here’s where battery energy storage swoops in to save the day!

These systems can lighten the load on those overworked transmission lines by storing electricity right where it’s needed like a superhero holding onto their powers until they’re ready to use them. So, when we talk about reducing transmission congestion with battery energy storage, we’re basically talking about streamlining the flow of electricity so it doesn’t get all jammed up in one place. It’s like giving each electron its own express lane to zoom through, ensuring power gets to where it needs to go without any hold-ups or delays. And that means a smoother, more efficient journey for our precious electricity from point A to point B

System Uptime

Black Start Capability:

Black start capability is a feature that some battery energy storage systems have. Imagine this – when there’s a blackout and everything goes dark, these special batteries can come to the rescue and help restart power plants or parts of the grid. How does this work exactly?

These batteries are designed with advanced technology that allows them to kickstart the power generation process without needing external power sources. They store energy during normal operation so that they can immediately jump into action when an emergency happens. This is crucial for ensuring that essential services like hospitals, emergency services, and even your favorite streaming platforms can get back up and running quickly after a blackout. The black start capability is like having a backup generator on steroids – it’s reliable, efficient, and environmentally friendly too!

Backup Power & Resilience:

Battery energy storage systems play a crucial role in ensuring uninterrupted power supply during emergencies such as grid outages. These systems utilize lithium-ion batteries to store excess energy generated during off-peak hours, which can then be used to provide backup power to critical facilities like hospitals, emergency response centers, and communication networks.

This capability is especially important in areas prone to natural disasters such as hurricanes, wildfires, or earthquakes, where maintaining electricity supply is essential for public safety and disaster response efforts. Moreover, battery energy storage systems not only offer backup power but also contribute to enhancing overall grid resilience. By decentralizing power sources and enabling localized energy distribution, these systems reduce the reliance on centralized grids that are vulnerable to widespread outages. In the event of a grid failure, the stored energy in batteries can be quickly deployed to support essential services, preventing prolonged disruptions and ensuring continuity of operations.

The flexibility of battery energy storage systems also allows for seamless integration with renewable energy sources like solar and wind power. By storing excess renewable energy when production exceeds demand, these systems help address the intermittency of renewable sources and ensure a stable and reliable power supply.

This synergy between battery storage and renewables not only promotes sustainability but also strengthens the resilience of the overall energy infrastructure by diversifying energy generation and storage options. In conclusion, battery energy storage systems play a critical role in safeguarding against power outages and enhancing grid resilience in the face of unforeseen events. By providing backup power to critical facilities and enabling efficient energy management, these systems contribute to building a more resilient and sustainable energy ecosystem that can better withstand disruptions and serve the needs of communities during challenging times.


Arbitrage is a smart strategy that utilities and energy companies use to make money by taking advantage of the differences in electricity prices. When the prices are low, they purchase electricity and store it in special batteries called lithium batteries.

These batteries can hold a large amount of electricity until it is needed. Then, when the prices go up, they sell this stored electricity back to the grid at a higher price, making a profit in the process. Buying low and selling high is similar to buying items on sale and then selling them for a higher price later. Imagine going to a store where your favorite snacks are on sale for half the price. You buy a bunch of them and keep them at home. Later, when the prices go back up, you sell those snacks to your friends at the regular price, making some extra money for yourself.

In the world of energy, this concept works on a larger scale. By using batteries to store electricity, companies can take advantage of fluctuations in energy prices throughout the day. This helps them make profits and ensure a more stable and reliable electricity supply for everyone. So, next time you hear about arbitrage in battery energy storage, remember that it’s all about buying low, storing energy efficiently, and selling high to make money while keeping our energy systems running smoothly.

Supporting Distributed Energy Resources (DERs):

Battery energy storage systems are crucial in supporting Distributed Energy Resources (DERs) such as solar panels. When integrated into microgrids, these systems can efficiently provide power to remote areas where traditional grid connections may be limited or unreliable.

Microgrids are small-scale power grids that can operate independently from the main grid, offering increased resilience and reliability during power outages or emergencies. Microgrids can ensure a steady power supply even when sunlight is not available by storing excess energy generated from sources like solar panels in batteries. This flexibility allows communities to reduce their reliance on fossil fuels and transition towards more sustainable energy solutions.

Additionally, battery energy storage systems help balance supply and demand within the grid by storing excess energy during periods of low consumption and releasing it during peak demand times. This optimizes the use of renewable energy sources, helps stabilize the grid, and reduces overall electricity costs for consumers.

In essence, integrating battery energy storage with DERs in microgrids represents a significant step towards building a more resilient and sustainable energy infrastructure for communities worldwide.

Deferred Infrastructure Investment:

Deferred Infrastructure Investment When it comes to meeting the growing energy needs of a community, utilities often face the challenge of investing in new infrastructure, such as power lines and transformers. However, instead of jumping straight into these costly and time-consuming projects, utilities can opt for a more flexible and cost-effective solution known as Battery Energy Storage Systems (BESS).

BESS serves as an interim or temporary solution that allows utilities to efficiently manage the increasing demand for electricity without the immediate need for extensive infrastructure upgrades. By strategically placing BESS units at key points in the grid, utilities can store excess energy during off-peak hours and release it during peak demand periods, thus optimizing the existing infrastructure’s capacity.

Not only does this approach help utilities save money by deferring large-scale infrastructure investments and provides them with the flexibility to adapt to changing energy consumption patterns over time. Additionally, BESS can enhance grid reliability by providing backup power during outages or emergencies, ensuring uninterrupted electricity supply to customers.

Overall, integrating Battery Energy Storage Systems into the energy grid offers utilities a smart and efficient way to meet increasing demand, optimize existing infrastructure, and improve overall system resilience without breaking the bank or disrupting service delivery.


Voltage Support:

Voltage support is one of the key benefits of using battery energy storage systems (BESS) in the distribution network. The voltage level refers to the force that pushes electricity through wires to power our homes, schools, and businesses. Sometimes, too much or too little electricity flowing through the system can cause problems like flickering lights or damaged appliances.

By installing BESS, we can ensure that the voltage remains stable and within the optimal range needed for all our electrical devices to function smoothly. This helps prevent potential disruptions in power supply and protects our equipment from damage. Imagine your computer suddenly shutting down during an important task because of a voltage spike

– that’s where BESS comes to the rescue!

When there is a sudden surge in electricity demand, such as during peak hours when everyone is using their air conditioners or charging their phones, BESS can quickly provide extra power to support the voltage levels. On the other hand, during times of low demand, excess electricity can be stored in the batteries for later use, effectively balancing out the voltage fluctuations. In addition to maintaining stable voltage levels, BESS also plays a crucial role in integrating renewable energy sources like solar and wind into the grid.

These sources often generate electricity intermittently depending on weather conditions, leading to fluctuations in voltage. By storing excess energy from renewables in batteries, BESS ensures a steady and reliable power supply even when the sun isn’t shining or the wind isn’t blowing. Overall, voltage support provided by battery energy storage systems not only enhances the resilience of our electrical infrastructure but also paves the way for a more sustainable and efficient energy future.

Emissions Reduction:

Battery Energy Storage Systems (BESS) help reduce harmful greenhouse gas emissions that contribute to climate change. When we talk about greenhouse gases, we are referring to gases like carbon dioxide and methane that trap heat in the Earth’s atmosphere, leading to global warming.

By using BESS, we can better incorporate renewable energy sources such as solar and wind power into our electricity grid. This means that when the sun isn’t shining, or the wind isn’t blowing, we can still have access to clean energy stored in batteries. Moreover, BESS also helps in optimizing the operation of traditional power plants. These power plants often rely on fossil fuels like coal and natural gas to generate electricity.

By strategically using battery storage, we can reduce the need for these polluting fuels, thus lowering overall emissions. Additionally, BESS can work hand in hand with storage hydropower systems, which store energy by using water stored in reservoirs. Combining these technologies can create a more resilient and sustainable energy grid that minimizes our environmental impact. In essence, BESS acts as a bridge between intermittent renewable energy sources and our constant need for electricity. By storing excess energy when it’s plentiful and releasing it when demand is high, BESS helps to balance the grid and reduce our reliance on fossil fuels. This cuts down on greenhouse gas emissions and paves the way for a cleaner and greener energy future for generations to come.


In essence, Battery energy storage system provides flexibility and resilience to the grid, allowing it to adapt to changing conditions and demands swiftly and efficiently. As the technology continues to advance and costs decrease, the deployment of BESS is expected to grow, further enhancing the capabilities of electricity grids worldwide.

Table of Contents