AI Ocean Thermal Energy

AI systems for ocean thermal energy conversion optimization

The Problem

Optimizing OTEC output amid variable ocean conditions

Organizations face these key challenges:

1

Uncertain and rapidly changing thermal resource (ΔT) and currents create volatile net output and make bankable energy forecasts difficult

2

High parasitic pumping power and heat-exchanger performance losses from biofouling and scaling erode net generation and margins

3

Reactive maintenance and limited offshore access lead to long repair cycles, higher vessel costs, and extended forced outages

Impact When Solved

3–8% higher net generation via real-time setpoint optimization and resource-aware dispatch20–40% reduction in unplanned outages through early detection of fouling, pump degradation, and heat-exchanger drift5–12% lower auxiliary load and 10–20% lower O&M spend from optimized pumping and condition-based maintenance scheduling

The Shift

Before AI~85% Manual

Human Does

  • Review historical ocean conditions and seasonal performance assumptions for expected net output
  • Manually tune pump speeds, heat-exchanger targets, and operating setpoints during changing conditions
  • Schedule inspections and maintenance from fixed intervals and observed performance losses
  • Investigate output shortfalls and decide corrective actions after degradation becomes visible

Automation

  • No AI-driven forecasting or optimization used in routine operations
  • No continuous fusion of ocean, weather, and plant data for site-specific predictions
  • No automated early warning for fouling, pump inefficiency, or heat-exchanger drift
With AI~75% Automated

Human Does

  • Approve operating strategy and dispatch priorities based on forecasted net generation and availability
  • Review AI-flagged anomalies and decide maintenance timing, vessel use, and outage windows
  • Authorize setpoint changes outside approved operating limits or during unusual ocean conditions

AI Handles

  • Forecast thermal gradient, intake temperatures, currents, and expected net power at site level
  • Continuously optimize pump loading, heat-exchanger targets, and working-fluid setpoints to maximize net output
  • Monitor equipment and process signals to detect fouling, degradation, and emerging failure patterns early
  • Prioritize maintenance actions and operating exceptions by impact on availability, auxiliary load, and net generation

Operating Intelligence

How AI Ocean Thermal Energy runs once it is live

AI runs the operating engine in real time.

Humans govern policy and overrides.

Measured outcomes feed the optimization loop.

Confidence84%
ArchetypeOptimize & Orchestrate
Shape6-step circular
Human gates1
Autonomy
67%AI controls 4 of 6 steps

Who is in control at each step

Each column marks the operating owner for that step. AI-led actions sit above the divider, human decisions and feedback loops sit below it.

Loop shapecircular

Step 1

Sense

Step 2

Optimize

Step 3

Coordinate

Step 4

Govern

Step 5

Execute

Step 6

Measure

AI lead

Autonomous execution

1AI
2AI
3AI
5AI
gate

Human lead

Approval, override, feedback

4Human
6 Loop
AI-led step
Human-controlled step
Feedback loop
TL;DR

AI senses, optimizes, and coordinates in real time. Humans set policy and override when needed. Measurements close the loop.

The Loop

6 steps

1 operating angles mapped

Operational Depth

Technologies

Technologies commonly used in AI Ocean Thermal Energy implementations:

Real-World Use Cases

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