Advancing Clean and Resilient Energy Solutions in Snohomish County

Discover Snohomish County PUD's innovative energy initiatives, including the Arlington Microgrid project and utility-assisted feasibility studies for customer microgrids. Learn about their focus on clean energy, renewable sources, and enhancing energy resiliency through community-driven projects.

• Clean energy
• Renewable sources
• Energy resiliency
• Microgrid solutions
• Snohomish County

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1. Local Energy Resources and Resiliency NW Energy Coalition Clean & Affordable Energy Conference 2023 May 4, 2023 A R L I N G T O N M I C R O G R I D | S N O H O M I S H C O U N T Y P U B L I C U T I L I T Y D I S T R I C T Scott Gibson Snohomish County PUD

2. About Snohomish County PUD Snohomish County & Camano Island Largest PUD in WA State Five hydro generation systems Jackson 100 MW Began operation in 1949 Young s Creek 8 MW Serves population of about 907,000 Hancock Creek 6 MW 367,000 customers and growing Calligan Creek 6 MW ~ 75% of our power is from Bonneville Power Administration Woods Creek - 650 kW 3-Elected commissioners Two existing battery energy storage systems 97% Carbon Free mostly due to hydro MESA 1 and Arlington Microgrid A R L I N G T O N M I C R O G R I D | S N O H O M I S H C O U N T Y P U B L I C U T I L I T Y D I S T R I C T

3. Arlington Microgrid The multiple uses of energy storage 3 A R L I N G T O N M I C R O G R I D | S N O H O M I S H C O U N T Y P U B L I C U T I L I T Y D I S T R I C T

4. Clean Energy Center V2G Electric Vehicles PowerStore BESS Generator 480V Switchgear 500kWAC Solar PV 1620 x 380W Panels 12kV:480V Transformer 4 A R L I N G T O N M I C R O G R I D | S N O H O M I S H C O U N T Y P U B L I C U T I L I T Y D I S T R I C T

5. Utility assisted feasibility studies for customer microgrids using lessons learned from the Arlington Microgrid Tulalip Tribes Microgrids Administration Building and Gathering Hall South Everett Solar Microgrid Add storage to existing planned solar project Partially funded by WA State Clean Energy Fund #4 Demonstrate how renewable energy powered microgrids can be installed behind-the-meter Use the microgrid for grid support energy arbitrage, peak shaving, etc. Explore potential of co-ownership of a battery energy storage system Create resilience zone in the event of a long-term power outage Provide energy bill savings Supplement existing diesel generators to reduce carbon footprint and reliance on fossil fuels A R L I N G T O N M I C R O G R I D | S N O H O M I S H C O U N T Y P U B L I C U T I L I T Y D I S T R I C T

6. Thank you ! Scott Gibson hsgibson@snopud.com A R L I N G T O N M I C R O G R I D | S N O H O M I S H C O U N T Y P U B L I C U T I L I T Y D I S T R I C T