# Coal Power - Stage 2 (technology)

internal name `coalplant-mk02` · tier 4 (pY science pack 2, [tier 4](https://factorio.kalzumeus.com/tier/4.md))
HTML page: https://factorio.kalzumeus.com/tech/coalplant-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)

- [Coal Power - Stage 1](https://factorio.kalzumeus.com/tech/coalplant-mk01.md)
- [Non Renewables - Stage 2](https://factorio.kalzumeus.com/tech/nonrenewable-mk02.md)

## Leads to (2)

- [Coal Power - Stage 3](https://factorio.kalzumeus.com/tech/coalplant-mk03.md)
- [Hot air - Stage 3](https://factorio.kalzumeus.com/tech/hot-air-mk03.md)

## Unlocks (3 recipes)

### Hot Molten Salt (`coal-molten-salt-02`)

- 40 s · tier 4
- Ingredients: 500 × [Molten Salt](https://factorio.kalzumeus.com/fluid/molten-salt.md)
- Results: 500 × [Hot Molten Salt](https://factorio.kalzumeus.com/fluid/hot-molten-salt.md) (2000°C)
- Made in: Coal powerplant MK 02
- Unlocked by: [Coal Power - Stage 2](https://factorio.kalzumeus.com/tech/coalplant-mk02.md)

### Pressurized steam (`he-02`)

- 2.5 s · tier 4
- Ingredients: 100 × [Hot Molten Salt](https://factorio.kalzumeus.com/fluid/hot-molten-salt.md) (≥1950°C), 75 × [Pressurized water](https://factorio.kalzumeus.com/fluid/pressured-water.md)
- Results: 100 × [Molten Salt](https://factorio.kalzumeus.com/fluid/molten-salt.md), 75 × [Pressurized steam](https://factorio.kalzumeus.com/fluid/pressured-steam.md) (2000°C)
- Made in: Heat exchanger MK01, Heat exchanger MK02, Heat exchanger MK03, Heat exchanger MK04
- Unlocked by: [Biomass Power - Stage 2](https://factorio.kalzumeus.com/tech/biomassplant-mk02.md), [Coal Power - Stage 2](https://factorio.kalzumeus.com/tech/coalplant-mk02.md), [Gas Power - Stage 2](https://factorio.kalzumeus.com/tech/gasplant-mk02.md), [Oil Power - Stage 2](https://factorio.kalzumeus.com/tech/oilplant-mk02.md)

### Coal powerplant MK 02 (`py-coal-powerplant-mk02`)

- 5 s · tier 4
- Ingredients: 1 × [Coal powerplant MK 01](https://factorio.kalzumeus.com/item/py-coal-powerplant-mk01.md), 30 × [Self assembly monolayer material](https://factorio.kalzumeus.com/item/self-assembly-monolayer.md), 100 × [Stainless steel](https://factorio.kalzumeus.com/item/stainless-steel.md), 50 × [Duralumin](https://factorio.kalzumeus.com/item/duralumin.md), 100 × [Titanium plate](https://factorio.kalzumeus.com/item/titanium-plate.md), 80 × [Concrete](https://factorio.kalzumeus.com/item/concrete.md), 100 × [Advanced small parts](https://factorio.kalzumeus.com/item/small-parts-02.md), 20 × [Engine unit](https://factorio.kalzumeus.com/item/engine-unit.md), 50 × [Complex circuit board](https://factorio.kalzumeus.com/item/advanced-circuit.md), 5 × [Mechanical Parts 02](https://factorio.kalzumeus.com/item/mechanical-parts-02.md)
- Results: 1 × [Coal powerplant MK 02](https://factorio.kalzumeus.com/item/py-coal-powerplant-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: [Coal Power - Stage 2](https://factorio.kalzumeus.com/tech/coalplant-mk02.md)