First expressed by Jeffery Sachs, Director The Earth Institute of Columbia University: "The politicians have done their job; now it’s up to the engineers," was the sentiment that followed the signing of the Paris Agreement, as it is resonating with engineers worldwide.

  American Airlines Center near the Dallas downtown recently replaced the high-pressure sodium and metal halide light fixtures with LED luminaires in its parking garages. And that has allowed the sports and entertainment arena to reduce an estimated 60% energy consumption and $1.26m in total lifetime savings in parking garage lighting.

  The power supply used to be an afterthought in electronic systems design. No longer. Today’s systems are complex; they cram more functions into ever-smaller volumes, are increasingly portable and sometimes deployed remotely.

  The higher switching frequencies, operating temperatures, and voltage handling capabilities of Wide BandGap (WBG) materials such as Gallium Nitride (GaN) and Silicon Carbide (SiC) makes them of fundamental importance to any effort to reduce energy consumption.