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Issaquah Enhances Resilience with Sodium-Ion Energy Storage
The City of Issaquah, Washington, is implementing a 60 kWh sodium-ion battery storage system at Pickering Barn. This grant-supported project integrates with existing solar power to boost municipal resilience. The system will support essential services during power outages and contribute to the city's climate goals.
Seattle-based manufacturer Emerald Battery Labs has announced a collaboration with the City of Issaquah, Washington, to provide a battery energy storage system (BESS). This system is intended for the city's resilience initiative at Pickering Barn, a historic site designated as a 'Resilience Hub'.
Pickering Barn serves as a critical community resource, offering warming and cooling centers, emergency services, and support during grid disruptions or natural disasters. A previous Solar + Storage Microgrid Feasibility Study identified this location as a priority for a community resilience microgrid. A 64.9 kW-DC solar photovoltaic array was installed earlier this year. Integrating battery storage is crucial to enable the facility to operate independently from the main grid and maintain essential services during extended outages.
The project is partially funded by a $671,000 grant. This funding will allow Emerald Battery Labs to develop and deploy a 60 kWh sodium-ion system, which will be paired with the existing solar and hardware infrastructure. The company plans to finalize the system design, obtain necessary certifications such as UL 9540, UL 9540A, and UL 1973, and assist the city with permitting and procurement processes.
According to Emerald Battery Labs, sodium-ion chemistry offers enhanced thermal stability, improved safety, a longer cycle life, and eliminates reliance on cobalt or lithium. David Bell, co-founder and CEO of Emerald Battery Labs, highlights that these batteries are sustainable and safe, and can be produced from abundant, low-cost materials sourced domestically. This project at Pickering Barn aims to demonstrate the potential of sodium-ion systems for municipal deployments, microgrids, and backup power applications.
Mayor Mark Mullet affirmed Issaquah's commitment to clean energy and community resilience. The city, which achieved LEED Gold certification in 2023, is actively working towards its climate objectives. This article is based on information from Energynews.pro.
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