# Tidal Power - Stage 2 (technology) internal name `tidal-mk02` · tier 4 (pY science pack 2, [tier 4](https://factorio.kalzumeus.com/tier/4.md)) HTML page: https://factorio.kalzumeus.com/tech/tidal-mk02/ ## Cost 1400 units of (1 × [pY science pack 2](https://factorio.kalzumeus.com/item/py-science-pack-2.md), 2 × [Logistic science pack](https://factorio.kalzumeus.com/item/logistic-science-pack.md), 3 × [pY science pack 1](https://factorio.kalzumeus.com/item/py-science-pack-1.md), 6 × [Automation science pack](https://factorio.kalzumeus.com/item/automation-science-pack.md)), 90 s each. ## Requires (2) - [Renewables - Stage 2](https://factorio.kalzumeus.com/tech/renewable-mk02.md) - [Tidal Power - Stage 1](https://factorio.kalzumeus.com/tech/tidal-mk01.md) ## Leads to (1) - [Tidal Power - Stage 3](https://factorio.kalzumeus.com/tech/tidal-mk03.md) ## Unlocks (1 recipes) ### Tidal power plant MK 02 (`tidal-mk02`) - 0.5 s · tier 4 - Ingredients: 1 × [Tidal power plant MK 01](https://factorio.kalzumeus.com/item/tidal-mk01.md), 50 × [Niobium pipe](https://factorio.kalzumeus.com/item/niobium-pipe.md), 100 × [Stainless steel](https://factorio.kalzumeus.com/item/stainless-steel.md), 50 × [Refined concrete](https://factorio.kalzumeus.com/item/refined-concrete.md), 500 × [Copper cable](https://factorio.kalzumeus.com/item/copper-cable.md), 150 × [Advanced small parts](https://factorio.kalzumeus.com/item/small-parts-02.md), 15 × [Self assembly monolayer material](https://factorio.kalzumeus.com/item/self-assembly-monolayer.md), 3 × [Shaft MK02](https://factorio.kalzumeus.com/item/shaft-mk02.md), 3 × [Brakes MK02](https://factorio.kalzumeus.com/item/brake-mk02.md), 2 × [Utility Box MK02](https://factorio.kalzumeus.com/item/utility-box-mk02.md), 3 × [Gearbox MK02](https://factorio.kalzumeus.com/item/gearbox-mk02.md), 50 × [Complex circuit board](https://factorio.kalzumeus.com/item/advanced-circuit.md), 10 × [Mechanical Parts 02](https://factorio.kalzumeus.com/item/mechanical-parts-02.md) - Results: 1 × [Tidal power plant MK 02](https://factorio.kalzumeus.com/item/tidal-mk02.md) - Made in: Burner assembling machine MK 01, Burner assembling machine MK 02, Burner assembling machine MK 03, Automated factory MK 01, Automated factory MK 02, Automated factory MK 03, Automated factory MK 04, Character, Character (flying), Mutagenic infusion, (flying) - Unlocked by: [Tidal Power - Stage 2](https://factorio.kalzumeus.com/tech/tidal-mk02.md)