Designing an oceanic seabase in Subnautica or Below Zero requires balancing solar panel depth attenuation, bioreactor fuel calories, and continuous energy draws from Water Filtration machines and Moonpools. Below are verified power grid production rates and priority draw rules.
| Rank | Map / Seed / Preset Name | Code / Seed ID | Players | XP / Coordinates | Status | Action |
|---|---|---|---|---|---|---|
| #1 |
Solar Panel Depth Attenuation Linear Drop Rate
12.5% max efficiency lost per 25m
|
Solar Efficiency = (1 - Depth / 200) x 100% (Produces 100% at surface, 50% at 100m, 0% past 200m depth) |
Shallow Water Explorers | ⚡ Zero Fuel Daytime Power | ✅ 100% Verified | |
| #2 |
Bioreactor Highest Fuel Density Crop & Creature Benchmarks
Fastest burn rate per slot
|
Top Fuels: Oculus (420 Energy), Reginald (420 Energy), Acid Mushroom (210 Energy), Gel Sack (245 Energy) |
Deep Base Builders | ⚡ Automated Alien Containment Breed | ✅ 100% Verified | |
| #3 |
Nuclear Reactor 4-Rod Maximum Baseload Grid
Runs Water Filtration non-stop
|
Reactor Output: 250 Energy/min per active Rod | 20,000 Total Energy stored per Uranium Rod before depletion |
Mega-Base Engineers | ⚡ Permanent High-Draw Power | ✅ 99% Verified | |
| #4 |
Thermal Plant Heat Gradient Production Benchmark
Connect via Power Transmitters
|
Thermal Output = (Water Temperature °C / 100) x 100% Output (Requires >25°C; Max at 90°C Lava Zones) |
Lost River Pioneers | ⚡ 24/7 Passive Zero-Maintenance | ✅ 100% Verified | |
| #5 |
Water Filtration Machine & Moonpool Continuous Drain
Requires dedicated battery buffer
|
Drain Rate: Water Filtration consumes 51 Energy/min continuously | Moonpool recharge consumes up to 100 Energy/min |
Survival Sailors | ⚡ Prevents Seabase Blackouts | ✅ 98% Verified |
12.5% max efficiency lost per 25m • Ideal for Shallow Water Explorers • Community Verification: 100% Verified
Solar Efficiency = (1 - Depth / 200) x 100% (Produces 100% at surface, 50% at 100m, 0% past 200m depth)
Fastest burn rate per slot • Ideal for Deep Base Builders • Community Verification: 100% Verified
Top Fuels: Oculus (420 Energy), Reginald (420 Energy), Acid Mushroom (210 Energy), Gel Sack (245 Energy)
Runs Water Filtration non-stop • Ideal for Mega-Base Engineers • Community Verification: 99% Verified
Reactor Output: 250 Energy/min per active Rod | 20,000 Total Energy stored per Uranium Rod before depletion
Connect via Power Transmitters • Ideal for Lost River Pioneers • Community Verification: 100% Verified
Thermal Output = (Water Temperature °C / 100) x 100% Output (Requires >25°C; Max at 90°C Lava Zones)
Requires dedicated battery buffer • Ideal for Survival Sailors • Community Verification: 98% Verified
Drain Rate: Water Filtration consumes 51 Energy/min continuously | Moonpool recharge consumes up to 100 Energy/min
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Seabase power sources are depleted in the chronological order they were constructed. If you built a Bio/Nuclear reactor before Solar Panels, the reactor will drain first even during bright sunny daytime. Deconstruct and rebuild your power sources so Solar Panels are connected first.
The Oculus (found in the Jellyshroom Cave) produces 420 energy per 1x1 slot, the highest caloric density in the game. Breed them inside an Alien Containment unit for an infinite supply.