Web-based Design & Analysis Tool
WDAT models the thermal, optical, and plant-growth performance of any greenhouse design — from a simple tunnel to a multi-span Venlo — using real hourly climate data for your exact location.
Designing a greenhouse means balancing cover materials, heating, cooling, lighting, shading, ventilation, and crop requirements — all interacting with local climate in ways spreadsheets can't capture.
The simulation tools that do exist are locked inside universities, built for generic buildings, or cost $2,000–$10,000+ per licence. Most greenhouses worldwide are still designed on experience and best guesses.
WDAT is purpose-built greenhouse physics. Real hourly climate data. Results in under 30 seconds. From a browser. No installation, no licence, no IT department.
From configuration to analysis in four steps.
6-step setup wizard: location, geometry, cover materials, shading layers, crop, and supplementary systems.
Fetches real hourly climate data from PVGIS, then runs 12+ physics engines over 8,760 hours.
Results across 5 interactive tabs with charts, KPIs, and a printable setup summary.
Save a formatted PDF report with all results, charts, and configuration details.
12+ physics engine modules running 8,760 hourly calculations per analysis.
Direct, diffuse, and PAR irradiance on every greenhouse surface — using McCree 1972 conversion and PVGIS satellite data.
Conduction, convection, and long-wave radiation through multi-layer cover assemblies with U-value calculation.
FAO-56 Penman-Monteith and Stanghellini models for evapotranspiration, VPD, and stomatal conductance.
Photosynthetically active radiation, Daily Light Integral classification, and supplemental lighting analysis.
Heating and cooling demand, fan & pad performance, fog/mist evaporation, and energy balance across all 8,760 hours.
Up to 4 motorised shading/energy screen layers with configurable control strategies and manufacturer material data.
Every analysis produces interactive, chart-rich results across five focused tabs.
5 score circles, 8 KPI cards, DLI chart, and energy distribution at a glance.
Temperature, VPD, solar irradiance, and wind patterns for your location.
Temperature profiles, adequacy heatmap, DLI/PPFD charts, and shading schedule.
DLI classification, active growth hours, CO₂ demand, lighting analysis, and transpiration.
Heating and cooling loads, stacked energy chart, cooling performance, and radiation balance.
From design engineers to farm owners, WDAT fits the way you work.
Validate designs, size systems, and generate professional analysis reports for clients in minutes.
Compare cover materials, cooling systems, and shading strategies before committing to a $100K+ project.
Teach greenhouse climate physics with a tool students can use from their phones. Every calculation is documented.
Assess crop suitability, light adequacy, and climate control requirements for any location worldwide.
Purpose-built where others adapt.
Open a browser and go. No desktop software, no university licence, no IT support needed.
Crop transpiration, PAR/DLI, evaporative cooling, shading screens — not a generic building energy tool.
Hourly irradiance from PVGIS (EU JRC) satellite datasets — location-specific, up to 10 years of history.
Every equation, material source, and crop reference is documented and cited. Check our work.
12+ physics modules covering radiation, heat transfer, transpiration, DLI, VPD, CO₂, and energy.
Pay per analysis, not per seat or per year. 100 free credits on signup to get started.
12+
Physics engines
8,760
Hours simulated per run
35
Cover & shading materials
23
Built-in crop species
4
Languages supported
178
Automated tests
Design with data, not guesswork.
Run a full-year physics simulation on your greenhouse design using real climate data. Know your heating bill, cooling load, and light adequacy before you break ground.