Methodology

In continuous development for over 30 years, our methodologies, based on observation and supported by current standards and scientific knowledge, focus on meeting customer needs efficiently and reliably.

Mesoscale modeling

Mesoscale modeling intends to recognize atmospheric patterns at intermediate temporal/spatial scale, allowing for the simulation of climate and meteorological phenomena that affect the generation of renewable energy. The resulting detailed data covering atmosphere-terrain interaction assist in predicting energy resource at specific locations and in optimizing the layout of both turbines and solar panels. We produce numerical maps by combining different scales of analysis and by applying specific parameterizations pertinent to conditions in Brazil and Latin America, using well-established mesoscale models recognized by the atmospheric science community. This is one of the core services in which our power generation diagnostics are grounded.

Microscale and Wake Effects Modeling

For microscale modeling and optimizing wind farm layouts, we utilize our proprietary tools, granting us flexibility and full control over calculation processes. These tools offer detailed analyses of the aerodynamic interactions between turbines and also evaluate the local terrain effects and their impact on turbulence and wind distribution. Our software contains routines that assist in compliance checks with the stringent IEC and MEASNET standards, producing results that are useful for certifications, audits and due diligence.

Advanced Modeling - LES

For specific needs, we have developed advanced wind flow modeling techniques based on Large Eddy Simulation (LES), which help to understand wind dynamics and their interaction with turbines in complex terrain. LES simulations allow us to investigate turbulence intensity, flow asymmetries and wake effects, and thus define the phenomena that impact wind farm performance.

Offshore Wind Energy

For offshore wind analysis, we have formed a proprietary methodology which considers the singularities of tropical marine environments. Offshore modeling includes the analysis of the effects of interference between turbines and the propagation of turbulence over marine surfaces, which feature specific characteristics of roughness, thermal and meteorological conditions. It also includes sensitivity tests to study aerodynamic wake steering strategies that can optimize performance and improve energy forecast reliability.

Solar Resource Analysis

To assist in the necessities of the emerging solar market in Brazil, we have devised methodologies focused on feasibility studies, risk mitigation and certification of photovoltaic plants. Our approach to estimate the Typical Meteorological Year (TMY) begins with refined analysis and validation of solarimetric data, leading to consistent estimates with lower uncertainties. We have experience with solar potential assessments in several regions of Brazil, including regional mappings and energy certifications, assisting investors and project managers.

Wind Farm Operational Analysis

Our approach for operational analysis of wind farms or clusters of farms, utilizing SCADA data, anemometric towers, and electrical system data, provides an in-depth performance diagnosis, identifying inefficiencies and optimization opportunities. By combining this data with O&M records, it is possible to ascertain unavailability, actual losses, and to estimate power curves for operational production.

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