Built for a Fast-Growing City

San Marcos has transformed over the last two decades — master-planned communities like San Elijo Hills and Discovery Hills, thousands of newer homes, and a young energy centered around CSU San Marcos. Most of those newer roofs were built solar-ready with clean, unobstructed south and west exposures, which makes San Marcos one of the best cities in the county for a high-performing rooftop system.

The flip side of all that inland growth is heat. Tucked into the valleys away from the coast, San Marcos summers get genuinely hot, and central AC runs hard from June through September. That’s where solar paired with battery storage really pays off — you generate power when the sun is highest and store it for the expensive evening peak. Sky Source Electric designs each system around your home’s orientation, roof pitch, and how your family actually uses electricity, then backs it with panel upgrades and EV charging so everything works together.