The transition to clean energy is a crucial aspect of our modern world, with energy storage playing a vital role in this shift. Many states have set targets for increasing energy storage on the grid, and Illinois is currently considering establishing a statewide energy storage target. To determine the amount of storage needed, the Union of Concerned Scientists (UCS) conducted a modeling analysis of the Illinois power system as part of their project, “Storing the Future: A Modeling Analysis of Illinois Storage Needs.”

Energy storage is essential because the generation of electricity must match consumption in real-time. Renewable energy sources like wind and solar are variable, producing electricity based on weather conditions. Energy storage, particularly lithium-ion batteries, can help balance this variability by storing excess energy for later use. This is crucial in maximizing the use of clean energy and reducing reliance on polluting resources like gas combustion turbines.

The benefits of energy storage deployment in Illinois are significant, including increased reliability, lower energy costs, reduced emissions, and economic growth. The Illinois Power Agency has studied these benefits and found that investing in energy storage can lead to substantial savings and improved grid reliability.

Illinois recently passed the Climate and Energy Jobs Act (CEJA), which sets carbon emission limits for coal and fossil gas plants and expands incentives for wind and solar power. However, the law lacks specific provisions for energy storage deployment. To address this gap, UCS conducted modeling analysis to assess Illinois’ energy storage needs and recommend an initial deployment target of at least 3 gigawatts by 2030.

The analysis also highlights the importance of strategically locating energy storage facilities near retiring fossil fuel plants and renewable energy sources. By co-locating storage with renewables, Illinois can maximize the efficiency of its clean energy transition and benefit local communities through tax revenue and economic activity.

Policy support for energy storage development is crucial, with several proposals pending in the Illinois legislature. The Clean and Reliable Grid Act, supported by the Illinois Clean Jobs Coalition, aims to invest in battery storage deployment and create an open-source energy modeling capability within state agencies. By enacting these policies and leveraging federal funding, Illinois can accelerate its transition to a decarbonized power sector and achieve its renewable energy goals by 2050.

In conclusion, energy storage is a key enabler of the clean energy transition, and Illinois must prioritize the development of storage infrastructure to meet its decarbonization goals. By implementing proactive policies and leveraging innovative modeling approaches, Illinois can pave the way for a sustainable and resilient energy future.