Codex Energy Gravity Store

Gravity Store

The Gravity Store stores energy by lifting weights up a shaft: charging lifts them, discharging lets them down through the winches' motor-generators. It needs no fuel, never discharges by itself and makes no heat; it only loses a tenth on every transfer. A tall shaft and many weights make a large store.

How it works

1. Weights stand on the floor of the shaft, winches sit in its roof.
2. Incoming energy lifts the weights; the height of the weights shows how full the store is.
3. When energy is taken out, the weights go down again and the winches generate the energy back.

Building

Shown size: 3 wide, 7 high, 3 deep (adjustable: Width 3–16, Height 5–64, Depth 3–16).

One example of many: within the rules on this page, size and arrangement are up to you; the Build Projector shows the plan in every allowed size.

	Key	Block	Count
	A	Gravity Shaft Casing	50
	B	Industrial Sight Glass	4
	E	Energy Input Hatch (Tier 1)	1
	F	Energy Output Port	1
	C	Gravity Weight	1
	D	Gravity Winch	1
	0	Gravity Store Controller	1

Step by step

Each picture adds one layer, from the bottom up; the newest layer is bright. The controller wall faces you on the left.

Step 1: Layer 1

Parts in this step: Gravity Shaft Casing (A) ×9

Step 2: Layer 2

Parts in this step: Gravity Shaft Casing (A) ×7, Gravity Store Controller (0) ×1, Gravity Weight (C) ×1

Step 3: Layer 3

Parts in this step: Gravity Shaft Casing (A) ×6, Energy Input Hatch (Tier 1) (E) ×1, Industrial Sight Glass (B) ×1

Step 4: Layer 4

Parts in this step: Gravity Shaft Casing (A) ×6, Energy Output Port (F) ×1, Industrial Sight Glass (B) ×1

Step 5: Layers 5–6 (identical)

Place this layer 2 times on top of each other.

Parts in this step: Gravity Shaft Casing (A) ×7, Industrial Sight Glass (B) ×1

Step 6: Layer 7

Parts in this step: Gravity Shaft Casing (A) ×8, Gravity Winch (D) ×1

Rules

• Size: at least 3 wide, 5 high and 3 deep; up to perf.maxStructureSize (default 16, allowed 5–32) wide and deep and up to 64 high.
• Edges and corners: only Gravity Shaft Casing.
• Walls, floor and roof: Gravity Shaft Casing, Industrial Sight Glass, Inspection Hatches, Gravity Winches, the ports and the controller.
• Winches only in the roof.
• Inside: Gravity Weights only on the lowest interior layer; everything above them is air (the weights travel there).
• Needed: at least one weight and one winch.
• Controller: in a wall face (not on an edge), front facing out, with the inside directly behind it.
• Ports (each works only on its outer face): Energy Input Hatches and Energy Output Ports.

Operation in depth

• Lift height = the interior height above the weight layer (the shaft height minus 3).
• Capacity = weights × lift height × volt.gravityEnergyPerWeightBlock (default 20000, allowed 100–10000000).
• Rate in each direction = the lower of winches × 2,500 E per tick and what the weights can be lifted at their top speed (0.05 blocks per tick: weights × energy per weight and block × 0.05).
• Efficiency: 0.9 in each direction; the rest is lost in the motor-generators.
• No self-discharge and no heat: the store keeps its charge for ever.

Tip

Tall before wide Every block of height adds capacity for every weight, and more weights also raise the speed limit. Winches decide the rate: add winches to the roof until the rate fits your network.

The screen

• Line: Status.
• Bar: energy.
• Values: weights, lift height, weights at (their current height), winches, rate (each way), input, output.

Error messages

Message	What to do
Winches belong in the roof of the shaft (…)	Move the winch from the wall into the roof.
Wrong block at … (expected: Air)	Weights only on the lowest interior layer; keep the shaft above them empty.
Wrong block at … (expected: Gravity Shaft Casing)	Only shaft casing on edges and corners.
Missing parts: …	At least one weight and one winch.
Structure too small (…)	At least 3 wide, 5 high and 3 deep.
Structure too large or not closed near …	Close the wall there, or make the shaft smaller.
The controller must sit in a wall, front facing out	Put the controller into a wall face, front outwards.
Port not allowed here: …	Only energy ports work on the store.

In the world

The weights are hidden while the store is formed and drawn at the height their stored energy gives; you can watch them rise and fall through the glass.

Breaking it

Breaking the controller loses the stored energy. A store that forms again with less capacity (fewer weights or a lower shaft) loses what does not fit.