Electric Distribution System 10-year Master Plan

The City of San Marcos is one of the fastest growing cities in the United States, with more than 6% sustained growth over the past 10 years. As a result, the electrical infrastructure was quickly being over loaded. The purpose of this project was to develop a strategic ten-year master plan to identify capital projects, load restrictions and improve reliability. The project incorporated “known” aspects of the near-term development and the potential impact on the city’s electric system (addition of new businesses and loads, etc.) and historical load growth. This information was coupled with projected population growth and the electrical system was then modeled and forecasted over a ten-year period. From this, the capital project list was developed, prioritized and incorporated into the City’s overall financial plan.

In addition to the capital improvement aspect, the study also reviewed certain aspects of system performance such as coordination and fusing, power factor and street lighting. The final report included “if-then” scenarios to aid the city in their planned development and provided a basis for a far ranging and well-planned Capital Improvement Program in which these projects could then be planned and funded for smooth incorporation into the utility system.

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