Water Power
Water Power is an Industrial Age Factory upgrade in Age of Empires III. It raises the Factory’s automatic Wood output by 30%, allowing the player to redirect some Villagers from tree gathering while the building produces resources on its own.
Research profile
Effect
Research costs 250 Food and 250 Coin, takes 30 seconds and is completed at a Factory. The 30% bonus applies to that building’s Wood production, not to Villagers gathering from trees. The Factory must be assigned to Wood for the upgrade to provide its stated benefit; civilization and mode rules determine when a Factory is available.
Research condition
Industrial Age; research at a Factory. Cost: 250 Food and 250 Coin. Research time: 30 seconds.
Research decision
Research Water Power when the Factory is set to Wood and the match is likely to continue long enough for the added trickle to repay the resources spent. It is a poor immediate response to an army emergency, and it does nothing for Factory output while another resource is selected. Consider it as part of the Factory’s long-term economy rather than a direct upgrade to Villager gathering.
Compare the upgrade with the Factory’s current job
The Factory converts its production slot into a steady resource stream without requiring Villagers to stand beside it. Water Power strengthens only the Wood setting, so its value depends on the selected output and the remaining game time. If the army urgently needs Food or Coin, changing Factory output may matter more than researching a Wood improvement. Once the economy is stable, the bonus can free gathering capacity for units, buildings or other technologies.