[00:00] Check out these funny-looking racks of electrical equipment. Can you name that infrastructure? Pause the video here if you want to make a guess. Certain kinds of electrical devices, like motors, require a magnetic field to operate.
[00:14] It takes energy to create the field, but that energy, called reactive power, doesn't really get used up. Instead, it gets returned to the grid, causing the voltage to lose synchronization with the current in the lines.
[00:27] That reduces the efficiency of all the conductors and equipment powering the grid, because more electricity has to be supplied than is actually being used. So some utilities use banks of capacitors that can generate reactive power closer to where it's needed,
[00:42] reducing the demand on the transmission lines and helping stabilize the voltage of the grid. My new book has a whole chapter dedicated to the electrical grid. If you want to win a free copy, make a social media post like this one
[00:54] and include the hashtag engineering in plain sight. you