Home
![](https://kingfisherenergystorage.com/wp-content/uploads/2023/03/iStock-1412897669-1024x576.jpg)
Project Introduction
The Kingfisher project is proposed as a utility-scale solution for enhancing the reliability of the local electrical grid. The project will store power from the grid when there is an excess and release it when there is a shortage, ensuring a stable power supply for households, businesses, and critical infrastructure in King County.
Energy storage is a required component of Washington’s clean energy transition, supporting communities by delivering reliable power during periods of low production from intermittent renewable sources. The project also addresses general reliability issues, reducing the increasing risk of blackouts, brownouts, and power supply inadequacy events facing the region during periods of peak demand.
Development of the Goldeneye Energy Storage project is being led by Tenaska, an industry leader in developing safe, reliable assets for supporting local energy needs, on behalf of Copenhagen Infrastructure Partners.
Project Status
The proposed site for the Kingfisher Energy Storage project is located near the existing Berrydale Substation, allowing close access to the transmission system. This site will allow the facility to provide maximum support and value for the electric grid, while minimizing the overall project footprint. The facility will be operationally quiet, does not generate radiation or emissions, and will have no traffic impact when operating.
The project is not currently in active permitting. Once permitting has been initiated, the process will include a comprehensive review of the project and multiple opportunities for public comment and engagement.
![](https://kingfisherenergystorage.com/wp-content/uploads/2022/10/iStock-1182777182-1024x682.jpg)
![](http://kingfisherenergystorage.com/wp-content/uploads/2023/03/iStock-1382332613-1024x944.jpg)
Project Location
Our BESS projects utilize state-of-the-art battery technology, supplied by an experienced manufacturer, that has demonstrated the equipment meets or exceeds all applicable safety codes and standards. We work with independent BESS safety experts on every aspect of the battery system to ensure it meets the latest industry standards, and all safety and technical requirements will be certified by an Independent Engineering firm, which will be necessary for financing parties and insurers.
There are more than 20,000 BESS facilities operating safely across the United States. The industry has learned from rare, yet well-publicized, malfunctions at older BESS facilities. Advancements in siting, technology, operations and maintenance – combined with updated standards – make BESS a safe energy solution. Our team is committed to working with local emergency management to ensure first responders are equipped with appropriate training and resources to respond to safety incidents, however rare.
Project Overview
Resources
Project Materials*
Frequently Asked Questions (updated 5.30.2023)
*Additional project materials will be added as the development process moves forward