TL;DR
Getting an achievement for using nuclear, akin to the Diesel Locomotive and package deliverd achievementsWhat ?
The condition could be the first deliverd Watt to grid, so actual Production of power (quite fitting to the name). As image I suggest either a stylized atom or the plain old radioactivity warning sign.Why ?
Certainly a most minor and cosmetic suggestion, but having a „progression achievement“ like first establishing a rail network or most basic logistic network with freatures from 0.15 could improve continuity, esspecially for first and new players. We already have some for steam and solar, so it‘s quite fitting to have one for the actual complex method of power generation.A mod solution seems quite silly.