The phrase "electric speed" is not a commonly used phrase in everyday language. However, it could refer to the speed of an electric vehicle or the rate at which electrical energy is transmitted through a power line.
Sentences with «electric speed»
The top electric speed is 87 mph, though it really tops out at 130 mph with the full system. (chicagotribune.com)
Jane, with her blog's jewel of a tagline, Being Human at Electric Speed, belongs in the -LSB-...] (janefriedman.com)
I heard about it from a mention in Jane Friedman's excellent Electric Speed newsletter full of digital media tools and resources (view her archives here for a wealth of info and to see whether her newsletter might be right for you). (elizabethspanncraig.com)