Net Power

I've found this as the net power calculation:

• 1000 per acre of land (built or Wilderness)
  • extra 19360 per Fort
  • extra 3960 per barrier
  • no extra for other buildings

• 1/20 (0.05) per mana in pool
• 1/50 (0.02) per current population
• 1/5000 (.0002) per geld

• 1000 per spell level
  • Noting for god's favour, except Magic Favour through spell level bonus.

• 1000 per lesser item (includes Minor Indulgence and Magical Compass)
• 95000 per unique (from AM, needs confirmation in TR),
  • except Holy Grail gives 0 (or 1000 like a lesser item?)

• 10000 per ally
• 100000 per battle hero (100k)
• 100000 per non-battle hero (100k)

+ army power (number * power rank summed for each stack)