# Photovoltaic - Stage 2 (technology)

internal name `solar-mk02` · tier 7 (Production science pack, [tier 7](https://factorio.kalzumeus.com/tier/7.md))
HTML page: https://factorio.kalzumeus.com/tech/solar-mk02/

## Cost

1600 units of (1 × [Production science pack](https://factorio.kalzumeus.com/item/production-science-pack.md), 2 × [pY science pack 3](https://factorio.kalzumeus.com/item/py-science-pack-3.md), 3 × [Chemical science pack](https://factorio.kalzumeus.com/item/chemical-science-pack.md), 6 × [pY science pack 2](https://factorio.kalzumeus.com/item/py-science-pack-2.md), 10 × [Logistic science pack](https://factorio.kalzumeus.com/item/logistic-science-pack.md), 20 × [pY science pack 1](https://factorio.kalzumeus.com/item/py-science-pack-1.md), 30 × [Automation science pack](https://factorio.kalzumeus.com/item/automation-science-pack.md), 6 × [Military science pack](https://factorio.kalzumeus.com/item/military-science-pack.md)), 300 s each.

## Requires (3)

- [Silicon processing - Stage 3](https://factorio.kalzumeus.com/tech/silicon-mk03.md)
- [Solar Power - Stage 2](https://factorio.kalzumeus.com/tech/solar-power-mk02.md)
- [Thermosolar Power - Stage 1](https://factorio.kalzumeus.com/tech/thermal-mk01.md)

## Leads to (3)

- [Microwave Energy Reception](https://factorio.kalzumeus.com/tech/microwave-receiver.md)
- [Photonics](https://factorio.kalzumeus.com/tech/photonics.md)
- [Photovoltaic - Stage 3](https://factorio.kalzumeus.com/tech/solar-mk03.md)

## Unlocks (3 recipes)

### Conductive Sheet (`conductive-sheet`)

- 20 s · tier 7 · productivity modules allowed
- Ingredients: 10 × [Nexelit plate](https://factorio.kalzumeus.com/item/nexelit-plate.md), 2 × [Silver plate](https://factorio.kalzumeus.com/item/silver-plate.md)
- Results: 1 × [Conductive Sheet](https://factorio.kalzumeus.com/item/conductive-sheet.md)
- Made in: Gas processing unit MK 01, Gas processing unit MK 02, Gas processing unit MK 03, Gas processing unit MK 04
- Unlocked by: [Photovoltaic - Stage 2](https://factorio.kalzumeus.com/tech/solar-mk02.md)

### Monocrystalline Cell (`monocrystalline-cell`)

- 15 s · tier 7 · productivity modules allowed
- Ingredients: 2 × [Monocrystalline silicon plate](https://factorio.kalzumeus.com/item/monocrystalline-plate.md), 1 × [Passivation Layer](https://factorio.kalzumeus.com/item/passivation-layer.md), 1 × [Silver plate](https://factorio.kalzumeus.com/item/silver-plate.md), 1 × [Nickel plate](https://factorio.kalzumeus.com/item/nickel-plate.md), 1 × [Copper plate](https://factorio.kalzumeus.com/item/copper-plate.md), 3 × [Nexelit plate](https://factorio.kalzumeus.com/item/nexelit-plate.md), 1 × [Boron](https://factorio.kalzumeus.com/item/boron.md), 30 × [Phosphine gas](https://factorio.kalzumeus.com/fluid/phosphine-gas.md), 3 × [Silicon carbide](https://factorio.kalzumeus.com/item/sic.md)
- Results: 1 × [Monocrystalline Cell](https://factorio.kalzumeus.com/item/monocrystalline-cell.md)
- Made in: Electronics factory MK 01, Electronics factory MK 02, Electronics factory MK 03, Electronics factory MK 04
- Unlocked by: [Photovoltaic - Stage 2](https://factorio.kalzumeus.com/tech/solar-mk02.md)

### Solar panel MK 02 (`solar-panel-mk02`)

- 15 s · tier 7
- Ingredients: 5 × [Aluminium plate](https://factorio.kalzumeus.com/item/aluminium-plate.md), 10 × [Monocrystalline Cell](https://factorio.kalzumeus.com/item/monocrystalline-cell.md), 1 × [Anti Reflective Glass](https://factorio.kalzumeus.com/item/anti-reflex-glass.md), 3 × [Complex circuit board](https://factorio.kalzumeus.com/item/advanced-circuit.md), 10 × [Tinned cable](https://factorio.kalzumeus.com/item/tinned-cable.md), 12 × [Advanced small parts](https://factorio.kalzumeus.com/item/small-parts-02.md), 1 × [Tracker](https://factorio.kalzumeus.com/item/axis-tracker.md), 10 × [EVA (Ethylene-vinyl acetate)](https://factorio.kalzumeus.com/item/eva.md), 10 × [Self assembly monolayer material](https://factorio.kalzumeus.com/item/self-assembly-monolayer.md), 1 × [Electric engine unit](https://factorio.kalzumeus.com/item/electric-engine-unit.md), 50 × [Etching solution](https://factorio.kalzumeus.com/fluid/etching.md), 1 × [Mechanical Parts 02](https://factorio.kalzumeus.com/item/mechanical-parts-02.md)
- Results: 1 × [Solar panel MK 02](https://factorio.kalzumeus.com/item/solar-panel-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
- Unlocked by: [Photovoltaic - Stage 2](https://factorio.kalzumeus.com/tech/solar-mk02.md)