Holy hell $100 in the mild BC summer?! According to Google Vancouver varies between 14 and 22 degrees Celsius in June and July. That's t-shirt weather - don't even need heating at night if you've got good insulation.

I think your problem might be your general usage patterns (running clothes dryer, dishwasher too much or at peak times, inefficient lighting or leaving lights on everywhere, zombie draw from electronics) and the efficiency of your insulation, not merely the cost of electric baseboards. Or maybe power is just crazy expensive up there, I dunno.