
This new once-in-a-generation law allows DOE to, among many things, help more Americans lower their utility bills through the Weatherization Assistance Program; increase grid security and resilience in the face of extreme weather events and cyber attacks; revitalize our domestic supply chain for critical minerals and materials that will produce the next-generation of batteries for low- and zero-emissions cars, trucks, and buses; and test the clean energy technologies of the future at scale. [pdf]
While decisions carried out by federal regulators and regional market operators have an impact on state energy storage policy, state policymakers—and state legislators in particular—are instrumental in enacting policies that remove barriers to adoption and encourage investment in storage technologies.
Renewable penetration and state policies supporting energy storage growth Grid-scale storage continues to dominate the US market, with ERCOT and CAISO making up nearly half of all grid-scale installations over the next five years.
Approximately 16 states have adopted some form of energy storage policy, which broadly fall into the following categories: procurement targets, regulatory adaption, demonstration programs, financial incentives, and consumer protections. Below we give an overview of each of these energy storage policy categories.
Energy storage is a potential substitute for, or complement to, almost every aspect of a power system, including generation, transmission, and demand flexibility. Storage should be co-optimized with clean generation, transmission systems, and strategies to reward consumers for making their electricity use more flexible.
States are also developing expert task forces and committees to evaluate storage technologies and opportunities for growth. Maine, for example, enacted HB 1166 (2019) creating a commission to study the benefits of energy storage in the state’s electric industry.
One major tool for increasing the deployment of energy storage technologies is setting a storage target that requires the state to procure a certain amount of energy storage, measured in megawatts (MW) or megawatt-hours (MWh), by a specific date.

Energy storage is a potential substitute for, or complement to, almost every aspect of a power system, including generation, transmission, and demand flexibility. Storage should be co-optimized with clean generation, transmission systems, and strategies to reward consumers for making their electricity use more. . Goals that aim for zero emissions are more complex and expensive than NetZero goals that use negative emissions technologies to achieve a reduction of 100%. The pursuit of a zero, rather than net-zero, goal for the. . The need to co-optimize storage with other elements of the electricity system, coupled with uncertain climate change impacts on demand and supply, necessitate advances in analytical tools to reliably and efficiently plan, operate, and. . Lithium-ion batteries are being widely deployed in vehicles, consumer electronics, and more recently, in electricity storage. . The intermittency of wind and solar generation and the goal of decarbonizing other sectors through electrification increase the benefit of adopting pricing and load management. [pdf]
Approximately 16 states have adopted some form of energy storage policy, which broadly fall into the following categories: procurement targets, regulatory adaption, demonstration programs, financial incentives, and consumer protections. Below we give an overview of each of these energy storage policy categories.
A low energy demand scenario for meeting the 1.5 °C target and sustainable development goals without negative emission technologies. Nat. Energy 3, 515–527 (2018). Victoria, M. et al. Solar photovoltaics is ready to power a sustainable future. Joule vol. 5 1041–1056 (Cell Press, 2021). Nemet, G.
The report advocates for federal requirements for demonstration projects that share information with other U.S. entities. The report says many existing power plants that are being shut down can be converted to useful energy storage facilities by replacing their fossil fuel boilers with thermal storage and new steam generators.
Storage enables electricity systems to remain in balance despite variations in wind and solar availability, allowing for cost-effective deep decarbonization while maintaining reliability. The Future of Energy Storage report is an essential analysis of this key component in decarbonizing our energy infrastructure and combating climate change.
The market potential of diurnal energy storage is closely tied to increasing levels of solar PV penetration on the grid. Economic storage deployment is also driven primarily by the ability for storage to provide capacity value and energy time-shifting to the grid.
For this work, researchers added new capabilities to NREL’s Regional Energy Deployment System (ReEDS) capacity expansion model to accurately represent the value of diurnal battery energy storage when it is allowed to provide grid services—an inherently complex modeling challenge.

The Chinese autonomous region of Inner Mongolia has set a target to install and connect 5GW of energy storage capacity to the grid by 20251. The region aims to accelerate the energy transition and align with national government policies on climate mitigation. The plan includes constructing and completing new energy storage projects in the coming years2. Additionally, Inner Mongolia will optimize policy measures to promote large-scale development and efficient utilization of new energy3. [pdf]
Inner Mongolia autonomous region has become the first region in China to surpass 100 million kilowatts in new energy installations, achieved through the completion of the 1-million-kilowatt wind power storage project in Siziwang Banner and the second and third phases of the Three Gorges Ulaanqab green power demonstration project.
A planned battery energy storage system for Mongolia will be the largest of its type in the world and provide a blueprint for other developing countries to follow as they decarbonize their power systems. Mongolia’s coal-dependent energy sector accounts for about two thirds of Mongolia’s greenhouse gas emissions.
Besides Inner Mongolia, Shandong, Guangdong and Hunan provinces as well as the Ningxia Hui autonomous region are areas ranking in the first-tier group for installing new energy storage capacity in China.
This year, Inner Mongolia will expedite the implementation of sand prevention and control projects, integrated wind and photovoltaic power projects, new energy heating projects, and energy technology projects.
Since 2023, the energy bureau in Inner Mongolia has been committed to advancing new energy construction, focusing on improving the quality and efficiency of project advancement and scheduling.
New ADB-backed battery energy storage system in Mongolia will put on track the decarbonization of the energy sector and help unlock renewable energy potential to bring back blue skies to Mongolia’s urban areas.
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