EPC

ENGINEERING, PROCUREMENT,
AND CONSTRUCTION

Professionals

MAINTENANCE

Financial

MAXIMIZATION

Turn-key or BOS

RATIO GUARANTEE

EXECUTIVE
DESIGN

FEASABILITY
STUDY

LCOE
OPTIMIZATION

engineering

We are specialists in the study and design of renewable power generation plants. We have extensive experience in the development of rooftop and floor solar plants, as well as wind farms.

Our interdisciplinary team works committed to the development of high-impact projects in the energy sector, guaranteeing the optimization of LCOE, CAPEX and OPEX.

An electric power generation  project using renewable sources begins with the analysis of available resources, followed by a correct choice of equipment and its suppliers, all articulated through the development of basic and detailed engineering that analyzes the technical economic risks and present profitable, efficient and sustainable solutions.

ENGINEERING SERVICES

  1. Interconnection studies

The connection study allows evaluating the feasibility of connecting an electrical system, such as a solar or wind project, considering all the requirements demanded by the grid operator and the regulatory entities in accordance with regulations.

An interconnection study covers different analysis:

  • Load flow.
  • Short circuit.
  • Protection
  • Contingencies
  • Electrical loss
  1. Protection coordination analysis

The protection coordination study is the mechanism through which a system guarantees the safety of the equipment and operating team of an electrical system in the event of a short circuit occurs so that the fault is isolated as soon as possible, protecting the integrity of the equipment associated with the point of failure, without generating greater affectations to the other equipment that make up the electrical system.

This study allows:

  • Minimize interruptions due to short circuit faults in the system. 
  • Guarantee that the equipment will interrupt faults in the established time and without damage to the protected equipment.  
  • Determine which are the settings to system protection devices: switches, relays, reclosers.
  1. Short circuit analysis

A short circuit is one of the most destructive events in power systems. The short-circuit study determines the values of short-circuit current, or fault, between phases and between phases and ground, allowing the definition of the interruption characteristics of switching and protection equipment, as well as the nominal capacities of panels and cells.

The study allows us to determine:

  • The three-phase, two-phase, and single-phase short-circuit currents so that the short-circuit capacities in kA of the system equipment are defined.
  • Specify special equipment aimed at reducing the short-circuit current capacity, so that the cost-benefit of said equipment leads us to an economical design of the system, or that allows the operation of some equipment whose capacities are standard, or that already exist in the installation. 
  • The voltages after the fault in all the nodes of the electrical system.
  • Interrupting capacities of the elements of the electrical system such as low and medium voltage switches, fuses, current transformers, cell busbars, and boards.
  1. Arc Flash Analysis

The arc flash analysis identifies and analyzes the risk of an arc flash in areas of electrical panels and panelboards, defining the protected characteristics such as safety distances, incident energy levels, and personal protection elements.

The study allows us to determine:

  • Incident energy levels in boards and cells of the electrical system.
  • Signaling labels with values of safety distances due to electric arc, short-circuit levels, list of personal protection elements in accordance with current regulations, distances due to electric shock.
  1. Load flow analysis

Load flow studies are used to determine the optimal operating condition for normal operating modes in different demand conditions generated by load changes or different power supply points of the electrical system.

This study allows us to determine:

  • Overloaded equipment or circuits.
  • Location of the optimal site of the capacitor banks to improve the power factor.
  • The position of the transformer taps for voltage regulation.
  • Losses of the electrical network under certain operating conditions.
  • Simulate contingencies and determine the results of the operation of the electrical network.
  • Characteristics of the system under contingency conditions N-1.
  1. Power system stability studies

The stability study of a power system allows determining the capacity of the system to remain with stable conditions in the event of an event such as network failures, operations in the switching devices, or output/input of generation sources.

This study allows us to determine:

  • Critical failure times.
  • System capability for failure or the input and output of generators.
  • Critical elements in the stability of the electrical system.
  1. Power and energy quality studies

This analysis seeks to determine the current conditions of the electrical parameters of the power system and the impact of the deficiencies that these parameters may produce on loads of the electrical system.

This analysis is performed with recording equipment capable of capturing information with adequate sampling rates to determine if the measurement results are acceptable according to parameters defined in international energy quality standards.

 

  1. Lightning risk assessment study

The lightning risk assessment analysis allows evaluating the components of the installation that generate a greater risk of damage due to the occurrence of a direct or indirect lightning discharge.

 

With this analysis, the risk components and the actions that must be taken to carry out a lightning protection system with an acceptable risk of damage will be found.

  1. Conceptual, basic, and detailed engineering of renewable energy projects

The design of a renewable energy plant, such as solar and wind power, among others, starts from the conceptual stages and up to the detail stage so that the construction of the project is carried out successfully, complying with current national and international regulations.

Within the engineering process, the following activities are carried out:

  • Gathering information.
  • Layout layout.
  • Calculation reports and layout of the grounding system.
  • Calculation reports and layout of the shielding system.
  • Electrical connection layout.
  • Distribution layout control and protection boards.
  • One-line diagrams.
  • Engineering calculations.
  • Typical assembly drawings.
  • Technical specifications.
  • Equipment layout layout.
  • Layout of electrical conductors and pipes.
  • Drainage layout.
  • Grounding layout
  • Topographic studies.
  • Foundation layout.
  • Calculation reports and structural layout.
  1. Conceptual, basic, and detailed engineering of industrial electrical installations

Engineering includes the development phases of an optimal design from the conceptual, basic, and detailed stages of electrical installations: industrial, commercial, or residential, complying with current national and international regulations.

Within the engineering process, the following activities are carried out:

  • Gathering information.
  • Layout layout.
  • Calculation reports and layout of the grounding system.
  • Calculation reports and layout of the shielding system.
  • Electrical connection layout.
  • Distribution layout control and protection boards.
  • One-line diagrams.
  • Engineering calculations.
  • Typical assembly drawings.
  • Technical specifications.
  • Equipment layout layout.
  • Layout of electrical conductors and pipes.
  • Drainage layout.
  • Grounding layout
  • Topographic studies.
  • Foundation layout.
  • Calculation reports and structural layout.
  1. Grounding design

The design of a grounding system allows generating the protection of equipment and people against ground faults. These systems limit the step and contact voltages in metallic structures to which people have access to an adequate value.

This design covers:

  • Ground Resistivity Measurement.
  • Calculation of the grounding mesh.
  • Preparation of detail layout, calculation reports and list of materials.
  1. Lightning protection design

The lightning protection design guarantees the coverage and effectiveness of the lightning protection system for an installation. In this way, the safety of people, equipment, and facilities is obtained.

This design covers:

  • Gathering of architectural information.
  • Risk assessment
  • Using the electro-geometric method for the location of lightning rods.
  • Preparation of detailed layouts, and list of materials.
  1. Design of low and medium voltage substations

The design of substations includes the stages of conceptual, basic, and detailed engineering of the elements that make up the substations at the medium and low voltage level, guaranteeing that the design meets the standards required by current regulations.

The design includes the following activities:

  • Gathering information.
  • General layout
  • Electrical connection layout.
  • Distribution layout control and protection boards.
  • One-line diagrams.
  • Electrical calculations.
  • Typical assembly drawings.
  • Technical specifications of the control system.
  • Equipment location layout
  • Layout of electrical conductors and pipes.
  1. Design of medium voltage lines

The design of distribution lines will be carried out from the conceptual stage of the project to the detailed engineering, specifying the engineering documentation necessary for construction.

The design includes the following activities:

  • Gathering information.
  • Layout
  • Electrical connection layout.
  • Layout of safety distances.
  • One-line layout.
  • Engineering calculations.
  • Typical assembly drawings.
  • Grounding layout.
  • Loading trees.
  • Mechanical calculations.
  1. Lighting designs

The lighting design makes it possible to determine, in accordance with the regulatory criteria, the optimal performance system in lighting, energy-saving, and the useful life of luminaires based on the existing restrictions in terms of luminance, uniformity, and glare.

This design covers:

  • Lighting calculations.
  • Luminaire layout diagrams.
  • Electrical calculations of the power panelboard.

Detail layout, and list of materials.

 

  1. Soil resistivity measurement

The soil resistivity measurements allow a characterization of the soil in which the installation of electrical equipment will be carried out. Its correct characterization will allow terrain modeling such that the design of the grounding system is optimal.

With the measurements made, we obtain an adequate stratification of the soil for the calculations of the grounding system, being able to use a simplified model or a more detailed two-layer model, according to the needs of the project.

  1. Grounding resistance measurement

The measurement of the grounding system allows determining the current state of the system and taking corrective actions in case of findings in the measurement process.

This measurement considers the following activities:

  • Measurement, diagnosis, and analysis of the status of grounding systems and meshes.
  • Measurement of equipotential bonding of electrical equipment to points of the existing ground grids.
  1. Power quality measurement

The measurement is carried out with recording equipment capable of capturing information with adequate sampling rates, to determine if the measurement results are acceptable according to parameters defined in national and international power quality standards.

According to the requirements of the electrical system, the measurement equipment will be located, and the electrical parameters will be analyzed looking for weak points or points for improvement to provide actions in favor of obtaining greater reliability of the electrical system.

  1. Measurement of insulation in LV

Insulation resistance plays an important role in the operational safety of electrical installations and equipment. This measurement allows determining the status of the insulation resistance by simulating test voltages at industrial frequency without causing insulation breakdown so that a value is obtained that is contrasted with the insulation levels agreed by current regulations.

  1. Thermographic measurements

Thermographic measurements allow the identification of overheating or overload problems under normal operating conditions of the electrical system.

From the collection of information in the field and the processing of the thermographic record, abnormal conditions are detected in certain points of electrical equipment, issuing recommendations for improvement for these critical points.

  1. IV curves of photovoltaic systems

The generation of IV curves in photovoltaic systems allows characterizing each of the photovoltaic panels and allows knowing the situation of each of the panels and knowing how to proceed in the event of encountering a problem.

 

  1. PR measurement

 

Performance evaluation is a measure of the quality of photovoltaic layouts and is described as a quality component. Shows the proportion of energy that is available for export to the grid after deducting energy loss and energy consumption for operation.

With this evaluation it is possible to know the status of the solar layoutt and identify the problems it may have and provide a scheme of solutions to apply to improve the reliability of generation.

  1. Power factor correction

The power factor of an installation is reviewed by means of energy quality equipment and is contrasted with the current regulatory limits.

In addition to ensuring compliance with regulations, improving the power factor has the following advantages:

  • Reduction of the generation, transport, and distribution of electricity in the public network.
  • Greater use of the internal power distribution capacity of a facility.
  • Reduction of electrical losses, by reducing the current necessary to transport the same active energy.
  • Improvement of power quality since the voltage drop in cables is reduced.
  • Elimination of penalties that were being paid for low power factor and, eventually, obtain a bonus for good power factor.
  1. Diagnoses and consultancies for compliance with the RETIE and RETILAP (Colombia)

The consultancy for compliance with RETIE and RETILAP will allow knowing the aspects that must be corrected so that the inspection by these two regulations does not present “non-conformities”. This will be carried out with the following activities:

  • Visual inspection of circuits, boards, switches, and general loads.
  • Measurement of the installation’s grounding system.
  • Review of the shielding system.
  • Document review for compliance with regulations.
  1. Technical and administrative supervision in the stages of planing, execution, and liquidation of solar plants.

Supervision, accompaniment, and follow-up of solar layout projects in terms of administrative, technical, and financial areas, guaranteeing the execution of projects under optimal technical levels, following current regulations, as well as their consequence in the stages of execution, cost optimization, control of the administrative process and programming.

  1. Regulatory consultancy for the development of renewable energy generation plants

Consulting support for conducting studies on this type of energy, evaluating the regulatory aspects that apply to each case. Consulting covers all stages of new projects.

Among the analyzes carried out in the consultancy are:

  • Summary of laws, decrees and resolutions that apply to the project
  • Conceptualization of projects
  • Feasibility studies
  1. Hot and cold commissioning tests

Commissioning activities make it possible to ensure that the equipment and systems of a new facility comply with what is established in the design documents and operational requirements. Carrying out correct commissioning guarantees the reduction of problems related to the operational stability of the components of the electrical system.

Commissioning activities include:

  • Verification of control circuits.
  • Functional tests of instruments and equipment.
  • Solar panel testing.
  • Verification of grounding system.

PROCUREMENT

Our projects are built with innovative and high-quality components at the best prices thanks to our network of partners. The development of numerous projects across the globe allows us to leverage economies of scale in favor of our clients.


By partnering with leading suppliers, we secure the highest-quality materials for our project pipeline.


Years of trust and collaboration with tier 1 manufacturers, who share a commitment towards quality and the environment, enable us to procure top-notch materials while managing environmental and social risk with responsibility.

CIVIL

WORKS

MECHANICAL

INSTALATION

CONSTRUCTION

Renergeia offers turn-key or BOS solutions for both ground and rooftop solar power plants.


We execute civil works (earth movements, drainage systems, leveling, roads, fence, concrete works, trenches, pits, interconnection civil works),mechanical and electrical installations in-house. Direct execution of the work allows cost reduction, better control and higher quality.


Our construction standards respect the Equator Principles and the International Finance Corporation Performance Standards.

ELECTRICAL

INSTALATION

CONNECTION

WORKS

Let us utilize our EPC expertise

to benefit your project