4.5 ha solar PV plant
Hazard, erosion and detailed drainage design.
View the projectEngineering consultancy · Hydrology and hydraulics
Hydrological and hydraulic studies for energy and infrastructure projects
Flood modelling, catchment hydrology, drainage and erosion. We assess how water behaves on your site and deliver results you can use directly to design, lay out and justify your choices.
Direct contact: +33 7 44 90 54 90contact@hydrotechingenierie.fr
- HEC-RAS 1D / 2D
- HEC-HMS
- SWMM
- QGIS
- CFD
Countries since 2024
- France
- Italy
- Germany
- Chile
- Sweden
- Bulgaria
- Senegal
- Oman
- Tanzania
- Comoros
- Romania
Services
Understand the water on your site, then design accordingly
Six fields of work, from the catchment to the structure. Each study starts from your data and leads to well-argued design choices.
Hydrological studies
Catchment delineation, time of concentration, HEC-HMS rainfall-runoff models and design flows for the selected return periods.
Flood modelling
HEC-RAS 1D, 2D and coupled models. Mapping of flood extents, water depths, velocities and hazard.
Drainage and stormwater
Sizing of ditches, networks, crossing structures and detention basins. SWMM modelling when the network requires it.
Runoff and erosion
Identification of flow paths and ponding areas. Protection measures for access roads, slopes and foundations.
Renewable energy
Hydrological and hydraulic studies for solar PV plants, wind farms and battery energy storage sites (BESS).
Structures and infrastructure
Bridges, pipe and box culverts, linear infrastructure: hydraulic capacity, upstream backwater, hydraulic transparency of embankments.
Solar PV, wind, BESS
Account for water from the very first layout of the plant
We support developers and engineering firms, from feasibility to detailed design, to qualify the risk and adapt the layout.
Since 2024: 15 plants studied in France, Italy, Germany, Chile, Sweden, Bulgaria and Senegal.
- Flood extent and water depths on the plot for the design floods
- Flow velocities and scour risk at the foot of structures
- Runoff paths crossing the layout and ponding areas
- Position of substations, inverters and batteries relative to the highest water levels
- Drainage of access roads, ditches, crossings and discharge points
- Erosion under module rows and during construction
Deliverables
Results your teams can use directly
Each deliverable states the data used, the assumptions made and the limits of the model.
Hydrology
Hydrology report
Catchments, areas, time of concentration, rainfall assumptions and peak flows.
Mapping
Result maps
Flood extents, water depths, velocities and hazard for each scenario studied.
Models
Model files
HEC-RAS and HEC-HMS models provided on request, for your future updates.
GIS
GIS layers
Results in QGIS, shapefile, GeoPackage or KMZ format, ready to add to your drawings.
Design
Design calculations
Ditches, crossing structures, detention basins and erosion protection.
Summary
Technical report
Method, results, layout recommendations and points to watch for the next project stages.
Projects
Recent references, in France and abroad
Solar PV plants, wind farms and rivers: a selection of studies carried out since 2024, with their results.
15
solar PV plants documented
11
countries since 2024
1,249 ha
of plants studied, combined areas
2 to 500 years
return periods modelled
Method
A clear process, from your data to the report
Assignments are carried out remotely or on site. You keep a single point of contact from the first discussion to the delivery of the results.
- Step 01
Data review
DTM or LiDAR, topographic surveys, rainfall, soils, land use and project constraints.
- Step 02
Modelling
Hydrology, then 1D or 2D hydraulics. Checks on terrain, structures and model stability.
- Step 03
Analysis and design
Critical review of results, risk areas, comparison of options and sizing.
- Step 04
Delivery and follow-up
Report, maps and files. Discussions with your teams to integrate the results into the project.
Training
Train your teams in HEC-RAS, HEC-HMS and CFD
Courses built around your needs and the actual level of the participants, online or in person, in a short or spread-out format.
See the training coursesModule
HEC-RAS 1D
Model building, structures, floodplain, critical review of results.
Module
HEC-RAS 2D
Meshing, complex flows, structures, numerical stability.
Module
HEC-HMS
Rainfall-runoff models, calibration, coupling with HEC-RAS.
Module
CFD
Localised flows: meshing, boundary conditions, interpretation.
Technical articles
Lessons learned in modelling
Problems met on real models, and how to solve them. Articles in French.
Why doesn’t water flow under the bridges in your HEC-RAS 2D model?
LiDAR artefacts under bridge decks and DTM correction before simulation.
Read the article (in French)
Towards integrated hydrological modelling: from DTM to catchment in HEC-HMS
Read the article (in French)
When HEC-RAS shows -1.#INF… and everything is correct
Read the article (in French)A site to study, a structure to check?
Send us the site location, the nature of the project and your deadline. We will come back to you with a proposal.
Or by phone: +33 7 44 90 54 90