Geothermal Power is the energy system that keeps every research site on Île Saint-Hubert running in the Rebirth Expansion for Jurassic World Evolution 3. Instead of placing standalone generators wherever you like, you tap pressurised steam from the heart of the island and route that power through underground pipes to where it is needed. Getting the network right keeps enclosures secure, facilities online and workers safe.
Quick answer: Open the Power menu, place a Geothermal Generator, then connect it to a fixed Geothermal Supply point with underground pipes. Use Geothermal Splitters to feed more than one generator, and check the Supply pipe for Unused Power if anything loses electricity.
How Geothermal Power works on Île Saint-Hubert
Power on the island starts as steam that is heated and pressurised at its core. That energy travels out to each Research Site through a network of pipes. At every site you will find Geothermal Supply pipes that draw from this network, and connecting a Supply pipe to a Geothermal Generator delivers power across the area around that generator.
Each generator covers a circular Power radius, and each Supply pipe carries a fixed total amount of power. Both the amount a Supply pipe can deliver and a generator’s Power radius can be increased through Research, so the network grows alongside the rest of your facility.
This is the first time the series has used a buildable, island-wide pipe network for power distribution, so planning matters more than in earlier games. Power management now stretches across the whole of Île Saint-Hubert rather than staying local to a single building.
Build a Geothermal Power network
As you expand, return to Research to upgrade the island’s geothermal output and your generators’ radius. That keeps the available power ahead of your growing list of facilities and enclosures.
Geothermal network components
| Component | Role |
|---|---|
| Geothermal Supply | Fixed access point that pulls power from the island network; supplies a set total power that can be raised through Research. |
| Geothermal Generator | Connects to a Supply pipe and powers everything inside its Power radius. |
| Underground pipes | Carry power between a Supply and a generator. |
| Geothermal Splitter | Takes one input pipe and splits it into two outputs, each carrying half the input power. |
Why nearby structures lose power
If buildings drop offline when you place new infrastructure near a Geothermal Generator, the cause is almost always that the generator does not have enough power available. Select the nearest Geothermal Supply pipe to check whether there is Unused Power left in the network.
If there is unused power, rework the layout. You can move structures inside the generator’s radius or adjust the pipe routing so the spare power actually reaches them. If the Supply pipe is fully used up, look for a second Geothermal Supply on the same site that can feed an additional generator.
Note: Splitters are the most common reason a network runs short. Because each one halves the power going into its two outputs, chaining several Splitters together drains the available power quickly. Use as few as the layout allows, and raise the island’s geothermal output through Research when you need to power more at once.
Geothermal Power and Open Air Aviaries
The Open Air Aviary depends directly on this power system, so it is worth planning around when you build your network. Unlike a standard domed Aviary, it uses an electromagnetic field to contain flying reptiles, which gives a clearer view and a taller flight area. That field only works while the enclosure stays powered.
Place the Aviary inside a generator’s Power radius and confirm it is drawing power before adding animals. If the enclosure loses its supply, the containment field drops and flying reptiles can escape into the rest of the facility, so treat aviary power as a priority on any site that houses them.
Geothermal Power rewards careful planning more than constant rebuilding. Map your fixed Supply points first, keep Splitters to a minimum, and lean on Research upgrades as the campaign across the Main Facility, Ancient Valley, and Riverside Lab expands what you need to keep running.
