Power is the ability to generate electricity in order to enable electrical workbenches, lights, temperature control devices, automated defenses, and more. Access to power is crucial to survival, especially in late game. The success of a colony often relies upon a fault-tolerant power grid with a reliable power flow that ensures that your appliances are working at all times, especially in emergencies.
Wind turbinewind turbine produces a variable amount of power up to 3000W, based on the current wind speed (for wind conditions see Weather). It works day and night, compared to a solar generator which only works during the day. Wind turbines complemented by batteries can provide a stable supply of power since there are no wind related disasters, like the solar generator's Eclipse. A wind turbine's only real drawback is it's need for a large open area clear of trees, buildings, roofs, and other tall constructions.
Solar generatorsolar generator provides up to 1700W of power from sunlight. It has much smaller space requirements than a wind turbine but provides no power at night or during an eclipse. It may be placed in a wind turbine's exclusion zone with no effect on the turbine. Solar generators may be protected by surrounding them with walls, but they must stay unroofed to operate.
Power output is a direct product of the daytime light level. For example, at 50% daylight a solar generator produces 850W of its 1700W maximum. Batteries are a useful supplement to solar generators since they will store power during the day and keep the base online through the night.
Solar generators only operate by the world light level; light from ordinary sources such as a standing lamp or sun lamp will not work on them. The latitude of your starting position will affect solar cycles, with equator zones giving the strong consistent output and the north pole struggling to reach peak output.
Fueled generatorfueled generator provides a constant supply of power. So you don't have to worry about the sun or the wind.
It is useful in the early game when you can't afford renewable energy or if you can't make batteries yet.
It has a inventory that holds 75 wood, haulers will refuel it, a full fueled generator will provide power for ~3 days 9 hours.
It provides heat but less than a campfire.
As of Alpha 15 (August 28st, 2016), the fueled generator will consume fuel faster.
Geothermal generatorgeothermal generator is a structure that can only be built on a geyser and converts the thermal energy into electrical power. It provides a contant 3600W but it is more expensive to build than the other power generators and is limited by the location and number of geothermal geysers. The geothermal generator is available once it is researched. It is the only power generator that requires research.
Ship reactorship reactor is perfectly usable as a power generator. It provides 1000W, which is less than the maximum provided by any other power generator, though without their shortcomings or requirements; however, it is prohibitively expensive to build and use in most situations other than late-game. It provides power continually and can be placed on any buildable terrain where its 5x5 structure will fit. It must be researched before it can be built, but does not generate any heat nor require special venting.
Power generator summary
|Type||Cost||Size|| Max Output
|Wind Turbine|| 100
|5x2||3000||✓||✓||✓||In open ground|
|Fueled generator|| 100
|Ship reactor|| 300
(can roof over afterwards)
Power conduitbatteries to appliances up to six squares away. Conduit doesn't block the placement of other structures and isn't blocked by them, so conduit can be placed wherever it's needed, even in walls; except mountain rock and mineral ores.
If your power grid contains batteries with a stored charge of at least 50Wd, it is possible for a power conduit to short circuit, destroying the a random piece of conduit and discharging the entire stored power of the grid in an explosion proportional to the amount of charge; this can be mitigated by building non-flammable walls over your power conduits. Short circuits can be avoided by placing a power switch directly between the conduit and the batteries and turning the switch off. Turn the switch on only to charge the batteries and to provide power during a shortage. No short circuits will occur as long as the switch is off and no conduit is touching any batteries.
Power switchconduit lines connected to it. It provides an efficient way to control power to several appliances all at once, such as a large array of improvised turrets.
The 'Toggle power' button is used to request the switch to be flipped. A colonist with the 'flick' job type will flip the switch.
To construct a switchable circuit simply place the power switch along a line of conduit between the power source and the appliances. While one of the switch's connectors must connect to conduit to a power source, any or all of the three remaining connectors can be used to create branches. A switch can be placed directly adjacent to a battery or other power source, but the player will probably find it desirable to place the switch close to the appliances it's meant to control. Appliances won't connect directly to a switch, they only connect to conduit.
When the power switch is on the inspect pane displays 'Power: On', and the center of the power switch shows a pale circle.
When the power switch is designated to turn off, the 'Toggle power' button displays a red X.
When the power switch is off , the inspect pane displays 'Power: Off', and the center of the power switch is dark.
When the power switch is designated to turn on, the 'Toggle power' button displays a green check mark.
-A battery can only hold 1kWd (86.4MJ).
-Only 50% of the energy directed to the battery will be stored.
-If a power generator's output exceeds appliances' power consumption, excess power will be distributed evenly among all non-full connected batteries, charging all batteries at the same rate.
-Likewise, if power consumption exceeds power generation, all non-empty batteries will deplete at the same rate to fill the power gap.
-Batteries can be moved by reinstalling them. They do not lose their charge during the move, making them a portable power source.
-When a charged battery is disconnected from the power grid, it doesn't lose its charge.
-Batteries can randomly short-circuit, discharging all connected batteries and starting a large fire.
-A disconnected battery is not affected by short circuits.
-A battery can be disconnected from the grid by reinstalling it away from the grid or by using a switch to isolate it from the grid.
-Battery fires produce extremely hot fires.
-Batteries are highly likely to catch fire in the rain.
Appliances are structures or buildings that require power but don't transmit it. Most appliances don't require a direct power cable connection, they can be placed up to six squares away from a power cable or power source. When connected to the power grid, it can take a few moments before an appliance turns on.
Reconnect: Click to force an appliance to reconnect to a conduit line or power source.
Designate toggle power: Click to mark an appliance to be turned on (✔) or off (X) by a colonist set to flick.
Designate toggle power
consumption (in Watts)
|Electric tailor bench||120|
|Nutrient paste dispenser||200|