Out of the 125,000 K-12 schools in the United States, over 3,700 are running on solar power. Three-thousands of these schools installed their solar power systems within the past six years, as solar technology continues to become less expensive and more sophisticated.This trend in powering our schools reflects the growing recognition by district and state officials that photovoltaic electrical systems offer significant financial and environmental benefits. Here are four key reasons why more schools are making this transition.