Seabase blackouts in Subnautica leave you without oxygen production, vehicle charging, or clean water filtration. Managing power requires understanding source priority, depth attenuation on solar panels, and maximizing fuel density in bioreactors. This guide covers how to architect an immortal deep-ocean energy grid.
Subnautica does not pull energy from all generators equally. The game drains power sources in the exact chronological order they were constructed. If you build a Bioreactor first and Solar Panels second, the base will continuously burn your precious bioreactor fuel during peak sunlight hours. Always deconstruct and rebuild so Solar Panels are first, Thermal Plants second, and Bio/Nuclear reactors last as nighttime emergency baseloads.
Solar panel efficiency drops linearly with ocean depth using the formula: Efficiency = (1 - Depth / 200). A panel at 0m (surface) produces 100% capacity during daytime. At 100m depth, it produces 50%. At 200m or below, sunlight is 0% and solar panels generate 0 energy. For bases deeper than 200m, switch entirely to Thermal Plants or Bioreactors.
Different organic items produce wildly different energy values per 1x1 inventory slot. Creepvine seeds give only 70 energy, while Acid Mushrooms grant 210 energy. The supreme king is the Oculus fish (found in the Jellyshroom Cave), which yields 420 energy per slot and burns for 20 minutes. Build an Alien Containment unit with two Oculus to create an infinite, self-replenishing bioreactor fuel generator.
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The Water Filtration machine consumes a massive 51 energy per minute (0.85 energy/sec) while actively desalinating water and extracting salt. Once both slots are filled with Large Filtered Water, it stops draining power automatically.
Yes. Use Power Transmitters to beam energy across up to 100 meters per transmitter from surface solar panels or hydrothermal vents directly to deep seabases.
