Wave Energy Calculator Form
Enter site and design parameters below. The page uses a single-column flow overall, while the calculator fields shift across 3, 2, and 1 columns by screen size.
Plotly Graph
A sample graph is shown below before calculation. Once you submit values, the graph updates to your inputs automatically.
Formula Used
E = (1/8) × ρ × g × H²
Cg = (g × T) / (4π)
Pm = E × Cg
Psite = Pm × L
Pcaptured = Psite × η × Uf
Energy = Pcaptured × Duration
Where ρ is water density, g is gravity, H is significant wave height, T is wave period, L is intercepted crest length, η is capture efficiency, and Uf is utilization factor.
How to Use This Calculator
- Enter the design wave height in meters.
- Enter the representative wave period in seconds.
- Add the crest length your structure or system intercepts.
- Set capture efficiency and utilization to reflect real operating conditions.
- Choose the study duration in hours for energy estimation.
- Submit the form to view wave power, captured output, total energy, exports, and the graph.
Example Data Table
| Wave Height (m) | Wave Period (s) | Crest Length (m) | Efficiency (%) | Utilization (%) | Wave Power (kW/m) | Captured Power (kW) | Energy Result |
|---|---|---|---|---|---|---|---|
| 1.5 | 6 | 20 | 30 | 80 | 13.25 | 63.58 | 762.99 kWh in 12 h |
| 2.5 | 8 | 30 | 35 | 85 | 49.06 | 437.87 | 10,508.76 kWh in 24 h |
| 3.2 | 10 | 40 | 40 | 90 | 100.48 | 1,446.85 | 69,448.95 kWh in 48 h |
FAQs
1) What does this wave energy calculator estimate?
It estimates wave energy density, deep-water group velocity, wave power per meter, total incident site power, captured power, and energy over a selected duration.
2) Why is wave period important?
Wave period affects group velocity. Longer periods usually move wave energy faster, increasing power per meter even when wave height stays unchanged.
3) Why include crest length?
Crest length represents how much wave front your structure or device intercepts. A longer intercepted width increases total site power.
4) What does capture efficiency mean?
Capture efficiency is the percentage of incident power that your concept can realistically convert or collect under design assumptions.
5) What does utilization factor represent?
Utilization factor adjusts for downtime, part-load operation, maintenance, survivability limits, and other real project constraints that reduce practical output.
6) Is this suitable for final engineering design?
It is best for screening, feasibility checks, and concept planning. Final marine design should also consider bathymetry, wave spectra, tides, currents, structure response, and code requirements.
7) Does water type matter?
Yes. Seawater is denser than freshwater, so it carries slightly more wave energy. The density input lets you reflect site conditions better.
8) Why does the graph change after submission?
The chart rebuilds using your submitted period, crest length, efficiency, utilization, density, and gravity so the trend matches your chosen scenario.