Student project. What goes around most definitely comes back around. Circa Energy understands how their products impact consumer buying decisions, and how that in turn affects us all. The guiding principles driving the Circa Energy brand are simple: be earth-friendly, be consumer-friendly, and do all you can to encourage adoption of alternative energies. Offering both conventional and alternative fuels at the filling stations gives petroleum consumers a first-hand view of the virtues of alternative energy vehicles.