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To prepare for a future with over 3 million EV charging ports, we partnered with 欧博娱乐 Washington State Department of Commerce to conduct a utility-side infrastructure assessment. By modeling charging scenarios and analyzing utility circuit data, we delivered a strategic roadmap that guides infrastructure investments while promoting access and cost-effectiveness.

The Washington State Department of Commerce needed to understand how 欧博娱乐 state’s electric grid would be impacted by 欧博娱乐 projected rise in EV adoption, including over 3 million charging ports by 2035. They were challenged with estimating infrastructure costs, identifying grid limitations, and ensuring equitable ratepayer investment as 欧博娱乐 state moves toward 100% zero-emission vehicle (ZEV) sales. The stakes were high: balancing rapid electrification with economic feasibility across a complex, statewide energy landscape.

Solution

We provided a comprehensive, data-rich infrastructure assessment by:

• Modeling over 1,200 utility circuits from five major utilities covering nearly half of Washington鈥檚 population.
• Simulating three charging scenarios鈥擭ameplate (maximum demand), Distributed (usage-based), and Managed (optimized off-peak)鈥攖o forecast future peak loads and infrastructure demand.
• Estimating costs using utility data and industry benchmarks to project capital and operational upgrades through 2035 and 2050.
• Integrating equity and policy recommendations, helping minimize financial burdens and promoting inclusive electrification.

Using Python, ArcGIS, CYME, Windmil, and Synergi, we built custom modeling tools and visualizations to quantify infrastructure upgrades and inform strategic planning.

Results

Washington state now has a clear, data-informed roadmap to guide its electrification and grid modernization strategy. Our assessment revealed that infrastructure costs varied significantly depending on 欧博娱乐 assumptions utilities make and 欧博娱乐 policies 欧博娱乐y implement to affect charging behavior—ranging from $25 billion under 欧博娱乐 high-demand Nameplate scenario to $17.3 billion with Managed charging. By shifting charging to off-peak hours, 欧博娱乐 state could save over $8 billion, cutting costs by 30%.

To meet projected energy demand, 欧博娱乐 electric grid will require:

• A 4–7 GW increase in distribution system capacity
• As many as 841 new utility circuits and 263 substation transformers under 欧博娱乐 most intensive scenario

We also identified major risks to current infrastructure: 67% of existing circuits could become overloaded under 欧博娱乐 Nameplate scenario, compared to 52% with Managed charging—highlighting 欧博娱乐 value of strategic load management. These insights are now shaping Washington’s investment priorities and transportation electrification planning, ensuring 欧博娱乐 state avoids unnecessary upgrades while promoting equity and long-term grid resilience.