Looks like Helion has a long-term target of 1¢/kwh.
Conveniently, BCHydro just emailed me my bill this morning. They charge $0.2077/day. Then $0.0939/kWh for the first 688kWh and then $0.1408/kWh after that.
It looks like Helion is targeting to be somewhere between 10x to 15x cheaper than hydro-electricity.