Executive Summary A school district seeks to establish an efficient and cost-effective charging infrastructure to support a fleet of 40 electric school buses. Given the long dwell times available for overnight charging, the focus is on minimizing dependence on grid upgrades, reducing operational costs, and ensuring seamless energy management. DG Matrix has developed a tailored solution utilizing its Power Router technology to optimize energy distribution, lower costs, and enhance sustainability. Challenges 1 The transition to electric school buses presents several key challenges: Extended Charging Windows, Lower Power Requirements: Unlike public fast chargers, school bus depots require slower charging solutions that efficiently utilize overnight energy availability. Energy Cost Management: Peak demand charges and fluctuating electricity rates necessitate a strategic approach to energy consumption.

Grid Reliability and Resiliency: Ensuring uninterrupted charging without overloading the local grid. Scalability: Future expansion may require additional chargers and integration with renewable energy sources. Sustainability Goals: Compliance with environmental regulations and sustainability commitments by incorporating green energy solutions. Requirements and Priorities To address these challenges, the school district prioritizes the following: Cost Efficiency: Minimize both capital (CapEx) and operational expenditures (OpEx) 1 while ensuring profitability. Resiliency: Ensure uninterrupted power supply for critical operations, even during grid outages. Sustainability: Maximize renewable energy usage and reduce carbon emissions. Scalability: Future-proof the facility for seamless integration of additional solar panels, battery storage, EV chargers, and other energy sources. Operational Simplicity: Implement a centralized energy management platform for efficient operation and monitoring.