Electricity
Beginner's Guide to Electricity in Rust
Learn how electricity works in Rust. Core components, power flow, batteries, and how to build your first functional circuit.
Learn how electricity works in Rust. Core components, power flow, batteries, and how to build your first functional circuit.
Electricity in Rust automates base defense, controls lighting, triggers alarms, and powers systems that work while you play offline or sleep. Understanding the fundamentals takes only a few minutes, and mastering the basics opens the door to complex automated defenses. This guide covers everything you need to start building functional electrical circuits.
Every electrical circuit contains three essential elements: a power source that generates electricity, wiring that connects components, and devices that consume power.
Power Sources generate electricity measured in rW (rust watts). A solar panel produces a maximum of 20 rW during peak daylight. A wind turbine produces between 0 and 150 rW depending on wind strength and installation height. A small generator produces a steady 40 rW and runs on low-grade fuel, consuming it at a predictable rate. Generators are ideal for quick setups but costly to operate long-term.
Wiring transmits power from one component to another using the Wire Tool. Wires extend up to 30 meters in length and support up to 16 pinned waypoints per wire run, allowing complex routing through your base architecture. Power flows in the direction of the connection, from the output port of one component to the input port of another.
Power Consumption is the amount of electricity a device requires to function. Auto turrets need a minimum of 10 rW to turn on and operate. Lights consume between 1 and 5 rW depending on the type. Door controllers, sensors, and alarms each have their own power draw. If a device does not receive sufficient power, it simply does not activate.
Root Combiner merges two power sources into a single output. If two solar panels each produce 20 rW, connecting them through a root combiner outputs 40 rW. Root combiners can be chained together, allowing you to combine power from many sources before sending it to a battery or device.
Electrical Branch divides power into two separate outputs with independent flow control. You specify how much power goes to the Primary Out port, and remaining power flows to the Branch Out port. This component gives you granular control over power distribution, making it more flexible than a splitter for most advanced setups.
Splitter automatically divides incoming power equally among three outputs. Send 30 rW in, and each output receives approximately 10 rW after accounting for the splitter's small consumption. Power distributes sequentially to outputs 1, 2, and 3. If insufficient power exists to satisfy all three, later outputs receive less. Use splitters when you want equal distribution to multiple devices.
Switch acts as a simple on/off gate between a power source and a device. Timer switches automatically cut power after a specified duration, useful for automated systems. Switches are essential for safely authorizing new teammates on turrets without exposing your entire system.
Battery stores electrical energy during times of surplus and releases it when demand exceeds supply. Batteries charge when input power exceeds consumption and discharge when the source drops below demand. Three battery sizes exist: small batteries output a maximum of 10 rW with a storage capacity of 150 rWm, medium batteries output 50 rW with 9,000 rWm capacity, and large batteries output 100 rW with 24,000 rWm capacity. A single large battery can reliably support 10 auto turrets when paired with adequate charging capacity, outputting 100 rW for 240 minutes (4 hours) of continuous use.
The simplest working circuit combines a power source, battery, and device in a chain. Place a solar panel on your roof with clear sky visibility. Use the Wire Tool to connect the panel's Power Out port to a large battery's Power In port. Then connect the battery's Power Out port to your device's Power In port. During daylight, the solar panel charges the battery while simultaneously powering the device. At night, the battery discharges to maintain power to your device. This setup works reliably until you need additional power draw.
Place turrets on a manual switch or use a timer switch for authorization. This prevents accidentally shooting new teammates during the authentication process. Kill power, let them authorize, then restore the circuit.
Plan circuits by adding up the total power consumption of all devices running simultaneously. An auto turret requires 10 rW minimum. Five ceiling lights might draw 3 rW combined. Total demand is 13 rW. Your power source must provide at least this amount continuously. However, batteries do not store power at 100 percent efficiency. Charging efficiency is approximately 80 percent. To maintain battery charge during times of lower production (such as evening), your power input should be roughly 25 percent higher than your total draw. A system requiring 40 rW of steady power should generate 50 rW to properly maintain battery charge.
Start with a single large battery and small power source. Monitor if it maintains charge. If it depletes over several hours, upgrade your source or reduce consumption.