This tool estimates the potential energy output from a tidal lagoon project. It helps environmental researchers, policy advocates, and sustainability professionals assess the feasibility and impact of tidal power installations.
Enter the physical dimensions of the lagoon and local tidal data to get a detailed energy breakdown.
Tidal Lagoon Energy Estimator
Energy Estimation Results
How to Use This Tool
Enter the lagoon surface area in square kilometers, the average tidal range in meters, and the expected system efficiency percentage. Select the water density and your region for accurate emission factors. Click "Calculate Energy" to see the results, or "Reset" to clear all fields.
Formula and Logic
The tool uses the potential energy formula for tidal lagoons: E = 0.5 × density × gravity × area × (tidal range)². Annual energy is estimated by multiplying per-tide energy by the number of tides per day (2) and days per year (365), adjusted for system efficiency. CO₂ avoidance is calculated using regional grid emission factors.
Practical Notes
- Emission factors vary by region and grid mix; use the region selector for a more accurate CO₂ estimate.
- Lifecycle analysis (LCA) of tidal lagoons includes construction, operation, and decommissioning impacts; this tool focuses on operational energy output.
- Data sources for tidal ranges and efficiency should be based on site-specific studies or reputable environmental databases.
- Real-world projects may face regulatory, ecological, and social constraints not reflected in this calculation.
Why This Tool Is Useful
This estimator helps sustainability professionals and policy advocates quickly assess the energy potential of tidal lagoon projects. It provides a detailed breakdown of output, homes powered, and CO₂ avoidance, supporting feasibility studies and public communication.
Frequently Asked Questions
How accurate are the results?
Results are estimates based on simplified physics and typical efficiency values. Actual performance depends on site conditions, technology, and maintenance.
Can I use this for freshwater lagoons?
Yes, select the freshwater density option. However, most tidal lagoons are in seawater, so the default is set accordingly.
What if my region isn't listed?
Choose the closest match or use the global average. For precise CO₂ calculations, consult local grid emission data.
Additional Guidance
For detailed project planning, combine this tool with environmental impact assessments and stakeholder consultations. Consider integrating with other renewable energy tools for a comprehensive sustainability analysis.