- Small pole - covers 25 spaces, 24 effective spaces - costs 0.5 wood, 0.5 copper
- Medium pole - covers 49 spaces, 48 effective spaces (2 times more than small pole) - costs 10 iron, 2 copper (12 times more than small pole)
- Substation - covers 196 spaces, 192 effective spaces (4 times more than medium pole) - costs 110 iron, 30 copper, 5 coal, 15 petroleum (depending how you look at it around 13 times more than medium pole).
You could argue that medium poles don't use resources that can't be automated without mods (wood) and you would be right. There's no excuse for substations costing twice more than they should though.
Higher tier electrical poles should either:
- Have bigger coverage area
- Costs less
- Give additional bonuses (maybe instead of substation we could have underground electricity or other bonuses).
- Some combination of the above