This blueprint book contains 5 blueprints for an upgradeable reactor block. So if you need more power you can just drop the next level on top of it. It is optimized for the changed ratios in the Krastorio 2 mod and will not work as intended in vanilla.
- 2 Reactors = 620 MW
- 4 Reactors = 1.5 GW
- 6 Reactors = 2.3 GW
- 8 Reactors = 3.2 GW
- 10 Reactors = 4.1 GW
Connect 2 off-shore pumps with steel pipes to each of the large water tanks on top of the reactors. (The 10 Reactors block needs 3 off-shore pumps for both outer mosts tanks as each has to support 11 heat exchangers).
It is designed to fit into a 4x4 Chunk city block design with 2 cells padding for roads, but it can be placed freely as well.
The control logic was taken from this blueprint https://factorioprints.com/view/-LbgGSB0UaoCww6EOycF here is the relevant description:
Requests 5 fuel cells per reactor with requester chests, put used up fuel cells into passive provider logistic chests.
Works effectively on any load. Fuel cells are inserted only when needed, so they will not be wasted. Excess power is buffered as steam. Detects if there are no fuel cells in any of the chests or if there is clearly not enough water in input tanks and blocks cells insertion. In case of shortage of water shows on which side problem is by position of alert icon on map.
It must be noted, that even though fuel is conserved the efficiency decreases if the reactors idles for longer intervals as the internal heat is lost and must be regained before producing energy again.
Fuel insertion can be manually blocked by enabling constant combinator with L=1 output.