The energy cost to run more than a few is prohibitive though. I prefer to research cars and then go driving, but that’s a very different sort of gameplay (eg twitchy rapid steering to avoid collisions at speed)
Radars do consume a lot of energy at the beginning of a game, but even just one placed early and running continuously will find the ore needed to produce exponentially more power.
After that, I no longer think about radar power consumption. I just place them willy-nilly wherever they'll be useful. They're even spaced throughout my factory's interior just so I can see it working on the map from anywhere.
