Energy Storage

Increasing grid stability by providing on-demand energy capacity at times of high demand and other technical support for the transmission system.

Energy storage systems store electricity at times of low demand and provide it back to the grid when needed. These systems play a crucial role in stabilizing the power grid, integrating renewable energy sources, and ensuring a reliable and efficient electricity supply.

Energy storage systems have substantial storage capacities, ranging from several megawatt-hours (MWh) to gigawatt-hours (GWh) – enough energy to power hundreds to hundreds of thousands of homes and businesses.

Energy storage systems are connected to the power grid so the electricity they store can provide backup power during an outage. Storing energy in this way can also regulate the supply and demand of the grid by charging the systems during periods of low demand and discharging during peak demand. Energy storage systems also provide ancillary services to the utility grid to support resilience and efficiency.

Why Energy Storage?

Storage systems are transforming the energy landscape by enhancing grid reliability and providing economic and environmental benefits. These systems play an increasingly vital role in the transition to a sustainable and resilient energy future.

Enhanced Grid Reliability

Energy storage systems can provide instant power, on demand, allowing them to respond quickly to the needs of the energy grid by absorbing excess energy produced or providing additional power, improving grid reliability and reducing the risk of outages.

Large battery storage shipping containers are seen in rows surrounded by a fence in a desert and shrub landscape with a grey blue sky

Renewable Energy Integration

Energy storage systems enable the effective use of renewable energy by smoothing out the intermittency of renewables and ensuring a steady supply of clean energy to power homes and businesses in our communities.

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Cost Savings

By shifting energy supply to match demand more efficiently, energy storage can lower overall electricity costs while potentially helping defer or avoid costly infrastructure upgrades.

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Featured Projects

Brazos Bend

Brazos Bend is Cypress Creek’s first standalone storage site. Located outside of Houston, Texas, the 100MW system can power about 25,000 Texas homes for two hours.

Brazos Bend is Cypress Creek’s first standalone storage site. Located outside of Houston, Texas, the 100MW system can power about 25,000 Texas homes for one hour.

Zier

Energy storage containers and a substation are seen from above in a desert and shrub grass landscape

Our Zier Solar and Storage site in Kinney County, Texas features a co-located 80MWh energy storage system which is helping to stabilize the Texas grid.

Energy Storage Frequently Asked Questions (FAQs)

What is battery energy storage and how does it work?

Much like a cell phone or laptop battery delivers power when other sources are unavailable, battery energy storage systems harness the same type of technology but on a greater scale. Rows of small lithium-ion batteries are placed into larger modules which are then stacked inside larger container units and connected to the existing electric grid. Once operational, the battery energy storage system charges during times of energy abundance, stores power, and then releases it back into the electric grid during times of high demand, helping to ensure that power is available when it is needed most. 

Why do we need battery energy storage?

Battery energy storage systems are crucial for managing energy by storing it for use during high-demand periods, which is especially valuable when renewable sources like wind and solar are not generating electricity. These systems significantly enhance the stability and reliability of the electric grid. 

What do battery energy storage systems look like?

Battery energy storage systems resemble shipping containers. These systems, composed of multiple batteries, often feature vegetative screening, using plants, trees, or shrubs to blend into the surrounding landscape and minimize visual impact. 

Do battery energy storage systems make noise?

The batteries themselves are quiet, but some auxiliary equipment may produce noise comparable to that of a large home’s air conditioner. All battery energy storage sites are regulated to comply with local noise ordinances, and landscaping or setbacks (the distance between the equipment and other areas of importance) are often used to minimize any potential visual and sound impact. 

What are the benefits of battery energy storage?

Battery energy storage systems play a vital role in providing reliability and resilience during power outages, keeping electric rates low for consumers, and ensuring environmental sustainability.  

During power outages and emergencies, battery energy storage systems can provide crucial backup power. This ensures essential services remain operational and mitigates the effects of grid disruptions. They are particularly valuable in areas prone to natural disasters or in remote locations where maintaining a reliable power supply is critical.  

Battery energy storage systems can also be used to offset the need for traditional and costly investments in grid infrastructure. Utilities can use battery energy storage to increase capacity for new, clean energy deployment, allowing more customers to realize the financial benefits of cheap power. Battery storage allows clean energy to be stored and used around the clock, reducing reliance on fossil fuels and other resources with emissions that can impact air quality.  

Are battery energy storage systems safe?

Battery energy storage systems adhere to strict federal, state, and local safety standards, and incidents are extremely rare. Our developers work closely with local fire departments and first responders to ensure they have the necessary training and equipment to manage any potential incidents. Additionally, these systems do not produce air or water pollution, offering significant benefits to the electric grid while protecting the environment, health, and safety of nearby communities. 

What fire safety protocols are in place for battery energy storage systems?

To minimize fire risks, each system is equipped with automatic fire suppression equipment and dedicated cooling systems to maintain ideal operating temperatures. Developers also collaborate with local fire departments and emergency responders to provide the necessary training and equipment to address any potential safety issues. 

How are battery energy storage systems maintained?

Battery energy storage systems require minimal maintenance as they have no moving parts. They are equipped with advanced safety technology and are monitored remotely around the clock. Each battery system includes alerts for any operational deviations, enabling a prompt intervention to address potential issues. Periodic on-site maintenance involves routine testing to ensure all equipment operates safely and efficiently. 

What happens at the end of a battery energy storage facility’s life?

Battery energy storage facilities usually operate for 20-30 years, though this can be extended by upgrading equipment. At the end of their useful life, all associated equipment and materials are removed, and the land is restored 

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