SgurrEnergy has a team of specialist engineers, highly experienced at conducting flood risk assessment for several projects across the globe in various geographies, we are able to design storm water drainage for the most complex topographies whilst also providing remedial measures for the same.

SgurrEnergy also studies if the lack of an appropriate and adequate drainage system has a direct or indirect impact on power generation and leads to operating revenue loss, we understand its significance and its impact on the power plant, how frequently the flood risk may occur. We also study if there are remedial measures other than providing a drainage system to mitigate or minimise the flood risk, is the drainage system feasible, and if feasible, can we reduce the system cost.

We then proceed with collection of meteorological data (satellite based), topographical data for plant area and satellite based for areas beyond plant boundary, historical flood data at project site which is subject to information available in public domain and information gathered during site visit, analysis and interpretation of collected data as required for completing a hydrology study. Local standard or guidelines are referred while conducting this study.

Our
Proficiency –
Your Benefits

Diverse experience of doing hydrology studies in varied topographies.

Able to perform hydrology study and flood risk assessment for plants in operation, along with detailed Bill of Quantity costing as well as construction support.

Provide technical specification and checklists for site survey of barren land as well as plants in operation, and accordingly conduct the flood risk assessment.

Solar PV projects are susceptible to Pluvial and Fluvial flood risk from nearby rivers or direct rainfall, we have industry based software which helps assess project risk and perform hydrological modelling with 1D and 2D model linking.

In our flood risk assessment, we provide rainfall intensity comparisons for different rainfall datasets, which can be used in further detailing.

We provide mitigation measures particularly for utility scale solar PV plant and infrastructure aspects like road heights to avoid flooding on roadways and accessibility to the plant.

Our Services

The hydrology study includes the following:

  • Site visit is conducted to understand the existing site conditions, assess the topographical features to understand natural drainage and land use pattern.
  • The satellite based data is used for areas beyond plant boundary or drone survey data if available. There may be variations between the PV plant topography data and satellite or drone data, which may lead to elevation mismatch along the junction of both data sets and may influence the accuracy of analysis;
  • Collection of satellite based rainfall data (hourly, daily, yearly etc.) or freely available data from CWC for the project site. In case the gauge station data is available, the same can be considered for further analysis.
  • Analyse the rainfall data and estimate maximum rainfall depth for 24 hours and for various short durations including duration of concentration for 25, 50 and 100 year return-period. The rainfall data and analysis is included in the report.
  • Analysis of runoff coefficient and manning’s coefficient.
  • Estimate the maximum rainfall intensities for various return periods & durations including concentration times and prepare Intensity-Duration-Frequency (IDF) curve.
  • Estimation of catchment area and Runoff analysis;
  • Preparation of watershed based hydrological model;
  • Prepare flood inundation map indicating the flood levels, inundated area and flow direction taking into account the site topography, soil conditions etc. and using above flood hydrographs as upstream boundary conditions and appropriate downstream boundary condition.
  • Analyse high flood level for the project;
  • Providing various remedial measures such as provision of new drains with sizing subject to its feasibility.

Deliverable is a Hydrology report with recommendations on mitigating the flood risks. We also do the storm water drainage design and layout as part of the Detailed engineering scope.

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Relevant Experience

Portfolio of over 220MW solar PV projects spread across India
Portfolio of over 220MW solar PV projects spread across India
2018-2019
220MW
Portfolio of over 400MW solar PV projects spread across India
Portfolio of over 400MW solar PV projects spread across India
2019-2020
400MW
Portfolio of over 3000MW operational and under-construction projects in India
Portfolio of over 3000MW operational and under-construction projects in India
2020
3000MW
Portfolio of 75MW Distributed solar PV projects in India
Portfolio of 75MW Distributed solar PV projects in India
2021
75MW
Portfolio of 800MW PV project spread across India
Portfolio of 800MW PV project spread across India
2019-2020
800MW
Portfolio of 250MW PV projects
Portfolio of 250MW PV projects
2020
250MW
Portfolio of 48MW solar PV projects spread across India and Thailand
Portfolio of 48MW solar PV projects spread across India and Thailand
2020
48MW
100MW PV Project in Maharashtra
100MW PV Project in Maharashtra
Ongoing
100MW
130MW solar PV project in India
130MW solar PV project in India
2018
130MW
50MW Project in Vietnam
50MW Project in Vietnam
2018
50MW
50MW project in Vietnam
50MW project in Vietnam
2018
50MW
140MW solar PV project in Rajasthan
140MW solar PV project in Rajasthan
2018
140MW
Portfolio of 25MW roof-top PV Projects
Portfolio of 25MW roof-top PV Projects
2018
25MW
5MW project in Gujarat
5MW project in Gujarat
2016
5MW
15MW PV project in Punjab
15MW PV project in Punjab
2016
15MW
2x20MW solar PV project in Telangana
2x20MW solar PV project in Telangana
2014
2x20MW
40MW solar PV project in Rajasthan
40MW solar PV project in Rajasthan
2014
40MW