
In the game Factorio, rocket fuel is a required component for launching rockets. Each rocket part requires 10 rocket fuel in the vanilla game, meaning 1000 rocket fuel is needed for a single rocket launch. Rocket fuel is produced using solid fuel, which can be created from heavy oil, light oil, or petroleum gas. Light oil offers the best ratio, with 10 light oil required to create one solid fuel. To create rocket fuel, solid fuel must be combined with light oil. While rocket fuel is more powerful and efficient than solid fuel, it is also more costly and polluting to produce. Solid fuel is generally sufficient for most players' needs, especially in the early game.
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What You'll Learn

Solid fuel is processed in a chemical plant
In Factorio, solid fuel is a type of fuel that can be used in all burner devices. It is also used to produce rocket fuel, which is a component of rocket parts built in the rocket silo. One unit of solid fuel contains 12MJ of energy, which is three times the energy value of coal. Solid fuel can be created from heavy oil, light oil, or petroleum gas. Light oil has the best oil-to-solid-fuel ratio of 10:1.
To create solid fuel, players can use petroleum gas, which is created by converting heavy or light oil through the cracking process. This process involves dividing the heavier and lighter hydrocarbon molecules in oil into smaller ones, releasing petroleum gas. Players can expedite the processing of the output by placing a light and heavy oil refinery near the crude oil refinery.
Alternatively, solid fuel can be created directly from light oil in a chemical plant. One piece of solid fuel costs 10 light oil to create. This process may be more efficient for players with limited access to heavy or crude oil.
Solid fuel can also be obtained from recycling scrap, which can be mined on Fulgora.
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It contains 12MJ of energy, three times more than coal
In the game Factorio, rocket fuel is a critical resource for launching rockets and expanding your factory's reach. Each rocket utilizes a substantial amount of solid fuel, which is essential for propulsion and powering the vehicle during its journey. One of the key advantages of rocket fuel is its exceptional energy density. It contains 12MJ of energy, a significant amount that far surpasses that of traditional coal, which provides only 4MJ of energy. This means that rocket fuel can offer three times the energy potential of coal, making it an extremely efficient and powerful fuel source for rockets. The superior energy content of rocket fuel ensures that your launches are more successful and that your rockets can carry heavier payloads over longer distances. This is especially advantageous when you need to transport large quantities of resources or when your factory's demands expand beyond the initial launch site.
The efficiency of rocket fuel in Factorio is a testament to the game's attention to detail and realistic mechanics. By providing an energy output that is considerably higher than coal, rocket fuel aligns with the requirements of space travel and the advanced technology needed to explore new frontiers. This fuel type is designed to maximize the potential of your rockets, ensuring they have the necessary power to escape Earth's gravity and reach their intended destinations. The 12MJ of energy packed into each unit of rocket fuel showcases the game's intricate balance between resource management, technological advancements, and the pursuit of space exploration.
The energy content of rocket fuel in Factorio also highlights the game's emphasis on strategic thinking and resource optimization. With each rocket requiring a considerable amount of fuel for launch, players must carefully manage their fuel reserves and plan their resource gathering accordingly. The higher energy output of rocket fuel compared to coal encourages players to prioritize efficiency and make strategic choices about fuel allocation. This strategic aspect of fuel management adds depth to the gameplay, challenging players to balance their fuel needs with their broader goals of expansion and exploration within the game.
Furthermore, the energy density of rocket fuel in Factorio opens up opportunities for players to optimize their resource usage and refine their strategies. With three times the energy content of coal, rocket fuel allows players to launch more ambitious missions and consider alternative approaches to fuel utilization. Players might opt to invest in more advanced technologies that take advantage of this efficient fuel source or develop strategies that involve longer-distance travel and more extensive resource gathering. The game encourages experimentation and creative problem-solving, as players can leverage the superior energy density of rocket fuel to overcome challenges and achieve their factory management goals.
Overall, the 12MJ of energy contained in rocket fuel is a significant advantage in Factorio, offering players a more efficient and powerful alternative to coal. This higher energy content directly impacts the success and capabilities of rocket launches, enabling players to explore, expand, and achieve their industrial ambitions. By understanding and utilizing the superior energy density of rocket fuel, players can unlock new possibilities, optimize their fuel strategies, and continue their journey of growth and exploration within the game's captivating world. The efficient use of rocket fuel is a key aspect of Factorio's intricate gameplay and a testament to its compelling blend of resource management and technological advancement.
Additionally, the game Factorio provides players with the ability to craft and utilize solid fuel as an alternative fuel source. Each solid fuel item contains the same amount of energy as rocket fuel, maintaining the 12MJ energy value. This consistency in energy content allows players to make informed choices when deciding between solid fuel and rocket fuel for their specific needs. The availability of solid fuel introduces interesting strategic options, as players can choose to create and use solid fuel for short-term boosts or save up their resources for the more advanced rocket fuel, which is more suitable for larger-scale endeavors.
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It's made from heavy oil, light oil or petroleum gas
In Factorio, solid fuel is a type of fuel that is processed in a chemical plant. Each unit of solid fuel contains 12MJ of energy, which is three times the energy value of coal. Solid fuel can be used in all burner devices and is also used to produce rocket fuel, which is a component of rocket parts built in the rocket silo.
Solid fuel can be created from heavy oil, light oil, or petroleum gas. The best oil-to-solid fuel ratio is achieved with light oil, which yields a 10:1 ratio. That is, one unit of solid fuel can be created from 10 units of light oil. By comparison, heavy oil has a ratio of 20:1, but this can be improved to 13:1 by first converting the heavy oil to light oil.
Petroleum gas can also be used to create solid fuel, with a ratio of 2:1. However, one source recommends avoiding cracking light oil into petroleum gas, as this reduces the overall efficiency of the process. Instead, it is recommended to use light oil directly for solid fuel creation, as it provides the best ratio.
Advanced oil processing is the preferred method to maximize solid fuel yields. This process yields 1 heavy, 4.5 light, and 5.5 petroleum per 10 crude, whereas basic oil processing yields 3 heavy, 3 light, and 4 petroleum per 10 crude.
To produce a rocket in Factorio, 50 rocket fuel is required for each rocket launch. Each rocket fuel is made from 10 solid fuel, so 500 solid fuel is needed for a single rocket launch.
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Light oil has the best oil-to-fuel ratio
In the game Factorio, solid fuel is a type of fuel processed in a chemical plant. Each unit of solid fuel contains 12MJ of energy, three times the energy value of coal. Solid fuel is useful as a burner device fuel and is used to produce rocket fuel, which is a component of rocket parts built in the rocket silo.
Solid fuel can be created from heavy oil, light oil, or petroleum gas. Light oil has the best oil-to-solid fuel ratio at 10:1. Cracking heavy oil to light oil first improves the ratio for heavy oil from 20:1 to 13:1. On Aquilo, the ammonia recipe is the most efficient. With no productivity bonus, optimally converting the products of advanced oil processing to solid fuel will result in needing approximately 10.55 crude oil per solid fuel, while solid fuel from ammonia requires only 6 crude oil per solid fuel. Solid fuel can also be obtained from recycling scrap found on Fulgora.
When it comes to oil cracking, some players prefer using circuits. This method involves connecting wires from two tanks to a pump set to "heavy oil > light oil" and another pump set to "light oil > petroleum." This setup works with any number of cracking refineries, eliminating the need for specific ratios.
As you progress in the game and start building rockets, you'll find yourself with less spare oil. With solar and electric miners/smelters, your reliance on coal will also decrease. If you're looking to convert oil to energy, light oil is the best option for creating solid fuel. It has the ideal oil-to-solid fuel ratio of 1:1 and little other in-game use. Heavy oil has a less favourable ratio of 2:1 and should be cracked into light oil first. The cracking process improves the ratio for heavy oil to 1.3:1. Petroleum gas also has a poor ratio of 2:1 and is generally not recommended for solid fuel creation.
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Solid fuel is also used to produce rocket fuel
In the game Factorio, solid fuel is a type of fuel processed in a chemical plant. Each unit of solid fuel contains 12MJ of energy, three times more than coal. Solid fuel is useful as a burner device fuel and can also be used to produce rocket fuel, which is a component of rocket parts built in the rocket silo. Solid fuel can be created from heavy oil, light oil, or petroleum gas. Light oil has the best oil-to-solid fuel ratio of 10:1. Cracking heavy oil to light oil changes the ratio for heavy oil to 13:1 (from 20:1). On Aquilo, the ammonia recipe is the most efficient. With no productivity bonus, optimally converting the products of advanced oil processing to solid fuel will need approximately 10.55 crude oil per solid fuel, while solid fuel from ammonia needs only 6 crude oil per solid fuel. Solid fuel can also be obtained from recycling scrap found on Fulgora.
In rocketry, solid rocket propellant is a fuel type that provides superior thrust. It is used in missiles and ICBMs due to its reliability, ease of storage, and handling. Solid rocket propellant is also safe and stable, as it does not ignite easily and does not produce toxic fumes. Additionally, its solid nature prevents spills or leaks, making it easier to transport than other rocket propellants. The manufacturing process for solid rocket propellant is simpler than that of most liquid propellants. However, a disadvantage of solid rocket propellant is that it produces the dirtiest exhaust gases among all rocket fuels. It also lacks the ability to control thrust, speed up, or slow down during flight.
The design of a solid-propellant rocket begins with determining the total impulse required, which dictates the fuel and oxidizer mass. Grain geometry and chemistry are then selected to meet the required motor characteristics. The dimensions of the grain, nozzle, and case geometries are precisely calculated to ensure the desired burn rate and chamber pressure. The length of the burn time is determined by the grain "web thickness." The grain may or may not be bonded to the casing, with case-bonded motors presenting more design challenges due to the need to consider the deformation of the case and grain during flight.
Solid rocket propellant plays a crucial role in modern rocketry, offering advantages such as superior thrust and ease of handling. However, the limitations in thrust control and the environmental concerns associated with exhaust gases are areas that require further improvements.
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Frequently asked questions
10 units of solid fuel are required to make one unit of rocket fuel.
One unit of solid fuel contains 12MJ of energy, which is three times the energy value of coal.
Solid fuel can be made from heavy oil, light oil, or petroleum gas. Light oil has the best oil-to-solid-fuel ratio of 10:1.











































