Large Essentia Generator

Large Essentia Generator

The Large Essentia Generator (LEG) is a multiblock power generator added by the Good Generator mod crafted in EV tier that consumes certain types of Thaumcraft essentia to generate power. There also exist several upgrades which allow the LEG to consume external fluids to boost the efficiency of some types of essentia or allow some previously unusable kinds of essentia to be consumed.

Research

The research for the LEG can be found in the Artifice tab of the Thaumonomicon, with the Artifice: Infusion parent research.

Multiblock Structure

Large Essentia Generator Overview

LEG Layer 1: Hatches can replace any Magic Casing in the centered plus shape.

1. Layer 1: Consists of Magic Casings and Arcane Stone Bricks. Fluid Input Hatches, Essentia Input Hatches, Maintenance Hatches, and Dynamo Hatches can replace any of the magic casings in the middle plus shape on this layer.
2. Layer 2: Consists of a ring of Magic Casings and Essentia Diffusion Cells, and Arcane Stone Bricks on the outer pillars. Essentia Diffusion Cells come in four different tiers and can be mixed. See the Essentia Diffusion Cells section below.
3. Layer 3: Consists of the controller block on the top center, and Amber Bricks on the outer pillars.

Essentia Diffusion Cells

The minimum tier of the Essentia Diffusion Cells dictates the maximum Dynamo Hatch tier the LEG can accept. Higher tiers also improve efficiency via the StablePoint mechanic. The total stable value of a LEG is the sum of the StablePoints contributed by each Diffusion Cell.

Essentia Diffusion Cell Tier	Dynamo Hatch Tier	StablePoint
Novice	EV	1
Adept	IV	2
Master	LuV	5
Grandmaster	ZPM	10

Upgrades

The optional LEG upgrades allow the LEG to consume external fluid to boost the EU value of some essentias or allow them to be consumed at all. These essentias come in 9 categories: Radiation, Spirit, Mechanics, Tainted, Victus, Unstable, Thermal, Air, and Electric. The upgrades' names are formatted as "Essentia Generator: [Category]" (i.e., Essentia Generator: Thermal). Installation of an upgrade is done by right-clicking the controller with the upgrade, and multiple upgrades can be applied to a LEG.

Liquid is optional for Victus, Tainted, Spirit, and Radiation, and not used in Electric.

Warning: any installed upgrades are not displayed anywhere, a message in chat is only displayed during installation, upgrades cannot be retrieved or removed, and breaking the controller voids all upgrades.

Essentia Input

Before running the LEG, the Essentia Input Hatch must be attuned to the desired essentia. This can be done by right clicking the Essentia Input Hatch with a phial filled with that essentia. The Thaumcraft Essentia Resonator can check if the attunement was successful. Essentia can be provided using either Essentia Tubes or the Thaumic Energistics Essentia Provider.

Tainted Upgrade Mechanics

Using the essentias and fluids in the Tainted category is supposed to cause flux gas pollution around the LEG. The volume spawned is a random fluid level from 0-8. The spawn chance per essentia consumed is dependent on the fluid used.

Fluid	Flux Gas Spawn Chance per Aspect Consumed
None	20%
Purifying Fluid	0%
Liquid Death	40%

However, this behavior is currently bugged and the LEG will attempt to spawn the flux gas at a random coordinate in the range x=0-4, y=0, z=0-4 wherever there is open air; in the overworld, this will likely fail due to the presence of bedrock at y=0.

Output

The LEG will always try to output the highest voltage it can at 1A before outputting more amps.

As of 2.6.1 (drawn from GitHub, GT5U repository):

The formula for EU generated per essentia is

${\frac {{\text{Fuel Value}}\times {\text{Fluid Efficiency}}\times {\text{Stable Value}}}{25}}$

The formula for fluid drained per essentia is

${{\text{Category Fluid Volume}}\times {\text{Essentia (Drain) Coefficient}}}$

The Thaumonomicon entries gives an incorrect basic consuming speed in a rate of seconds; in reality, fluid consumption is proportional to essentia consumption (the "Upgrade your generator" entry also does somewhat imply this). The source code instead has "Category Fluid Volumes" that are the fluid consumption rates in the Thaumonomicon divided by 20.

• Fluid Efficiency: higher is better
• Category Fluid Volume: lower is better
• Drain Coefficient: lower is better

Essentia Type	Upgrade	Fuel Value (EU)	Drain Coefficient
Terra	None	800	N/A
Aqua	None	5000	N/A
Ordo	None	12000	N/A
Lux	None	13000	N/A
Tempestas	None	61200	N/A
Gelum	None	3900	N/A
Vitreus	None	2000	N/A
Potentia	None	25600	N/A
Permutatio	None	6000	N/A
Metallum	None	2600	N/A
Tenebrae	None	9000	N/A
Praecantatio	None	36000	N/A
Herba	None	2600	N/A
Arbor	None	4500	N/A
Bestia	None	1000	N/A
Messis	None	9800	N/A
Perfodio	None	1300	N/A
Instrumentum	None	1200	N/A
Meto	None	3600	N/A
Tutamen	None	6200	N/A
Fabrico	None	1100	N/A
Pannus	None	600	N/A
Vinculum	None	500	N/A
Magneto	None	108000	N/A
Vesania	None	1	N/A
Primordium	None	217000	N/A
Gula	None	64000	N/A
Tempus	None	142857	N/A
Aer	Air	10000	1.0
Motus	Air	20000	0.5
Volatus	Air	56000	2.0
Auram	Air	42000	2.7
Ignis	Thermal	16000	1.0
Aequalitas	Thermal	300000	7.0
Volatus	Thermal	56000	2.0
Infernus	Thermal	35700	3.0
Ira	Thermal	82600	5.0
Perditio	Unstable	4500	1.0
Vacuos	Unstable	8200	1.5
Venenum	Unstable	17000	2.0
Telum	Unstable	14200	2.5
Terminus	Unstable	300000	10.0
Victus	Victus	20000	1.0
Spiritus	Victus	37600	0.7
Sano	Victus	24600	1.2
Corpus	Victus	5200	0.9
Humanus	Victus	16700	1.3
Fames	Victus	17600	1.1
Gloria	Victus	120000	0.6
Mortuus	Tainted	7200	1.0
Alienis	Tainted	9700	1.7
Vitium	Tainted	4700	10.0
Exanimis	Tainted	9000	1.2
Iter	Machina	16000	1.0
Machina	Machina	61200	1.0
Limus	Machina	11800	1.0
Cognitio	Spirit	2200	1.2
Sensus	Spirit	1400	0.7
Lucrum	Spirit	6000	2.0
Strontio	Spirit	200	0.03
Nebrisum	Spirit	24300	2.0
Luxuria	Spirit	79200	3.7
Superbia	Spirit	10900	2.1
Invidia	Spirit	7700	1.0
Desidia	Spirit	600	0.1
Radio	Radiation	238000	1.0
Astrum	Radiation	118000	0.5
Electrum	Electric	$8\times 3^{\text{Dynamo Hatch Tier}}$	N/A

The number corresponding to the Dynamo Hatch Tier starts with 0 at ULV and increases by 1 for each higher tier.

Fluid	Upgrade Category	Fluid Efficiency
None	Victus/Tainted/Spirit/Radiation	1.0
Air	Air	1.0
Liquid Air	Air	1.5
Water	Thermal	0.5
Distilled Water	Thermal	1.0
Crushed Ice	Thermal	1.2
IC2 Coolant	Thermal	1.5
Cryotheum	Thermal	5.0
Super Coolant	Thermal	9.0
Nitrogen	Unstable	1.0
Helium	Unstable	2.0
Neon	Unstable	2.2
Argon	Unstable	2.5
Krypton	Unstable	3.0
Xenon	Unstable	4.0
Liquid XP	Victus	2.0
Life Essence	Victus	6.0
Purifying Fluid	Tainted	60.0
Liquid Death	Tainted	${\left({\frac {25000}{\text{Fuel Value}}}\right)^{4}}$
Lubricant	Machina	1.0
Hollow Tears	Spirit	${15\times \left(1+{\frac {100}{\text{Stable Value}}}\right)}$
Flowing Spirit	Spirit	${10\times \left(1+{\frac {\text{Stable Value}}{100}}\right)}$
Molten Caesium	Radiation	2.0
Molten Uranium-235	Radiation	3.0
Molten Naquadah	Radiation	4.0
Molten Atomic Separation Catalyst	Radiation	16.0

Upgrade Category	Category Fluid Volume (L/aspect)
Air	8
Thermal	2
Unstable	4
Victus	18
Tainted	3
Machina	20
Spirit	2
Radiation	6
Electrum	N/A

Remark: Flowing Spirit is more efficient than Hollow Tears for Spirit when stable value is (strictly) greater than 150.

External Links

• GTNH: Sources of Essentia
• LEG Power Calculator