Eight Reactor Moderated Plant With Steam Display V2

This is a moderated eight reactor design with the following features:

1. Easy pump hookup. All offshore pump hookups are right next to each other. All you need to do is edge off a lake. There are more offshore pump hookups (14) than minimally required (10) to help avoid the need for fluid pumps.

2. No-loss steam storage. There is ample capacity in the steam tanks to hold the steam from a full fuel cycle.

3. Steam display. The percentage of used steam tank capacity is shown via a large lamp display. Credit to DaveMcW for the display circuitry. I just scaled up his design. You will notice the reactor reloads when the display is around 26%.

4. Brownout resistant. There are no fluid pumps, and the moderation scheme doesn't use a timer. As such, reduced satisfaction will not cause any significant negative feedback. A secondary protected electric network is not required.

North and south facing blueprints are included. Separate blueprints for rotations are necessary because of the lamp display. Rotating the plant will work, but it will make the display difficult to read.

To start the plant, manually place one fuel cell into each reactor.

A ten hour torture test does show the plant stable at 1.1 GW. The moderation scheme is timerless, and as a result the plant will have a dry time of one inserter turn every fuel cycle. This will result in a top end power loss of around 5 MW. I expect the actual maximum steady state power output is in the neighborhood of 1115 MW.

The reactors sync by counting the number of removed spent fuel cells modulo 8. New fuel cells will only be inserted if the number of spent cells removed = 0 mod 8, steam is low, there is fuel present in all eight provider chests, and the SR latch is set. The purpose of the latch is to stop repeat fuel cell insertion. It is set when spent fuel cells are removed, and reset when fuel cells are added.

An alarm will sound and a warning message will be sent if any of the provider chests do not contain fuel.

For information on the display circuitry, see the following forum post.

https://forums.factorio.com/viewtopic.php?f=193&t=19825&start=60#p282391

Edit: I have updated the blueprint to V2. All inserters are now directly wired to their powering poles in order to prevent the possibility of fuel loading during construction. The display itself is now also backed by stone brick, to help increase the contrast. The position of a few power poles were adjusted for symmetry purposes. No functional changes were made.

The vertical power lines over the lamp display between the substations can be snipped for visual purposes. Just take a copper wire and drag it between them. Unfortunately blueprints don't save manually edited power lines.