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ATA Renewables is a leading independent technical advisory firm for renewable energy projects. With more than 20 years of experience and active involvement in key projects worldwide, we have contributed to over 200 GW of renewable energy capacity.
We provide specialized technical advisory and consultancy services to support developers, owners, investors, and other key stakeholders throughout all phases of renewable energy projects. We are involved from the earliest greenfield development stages through construction and operational phases. In addition, we provide technical support for financing and asset acquisition transactions. Our multidisciplinary team delivers an independent perspective tailored to each client, helping maximize project value while ensuring effective risk management.
More than 500 financial institutions, developers, investors, and leading manufacturers worldwide have already placed their trust in us. We have inspected over 150 equipment manufacturing facilities and worked on projects in more than 50 countries, building a global network of technical expertise.
Wherever you are, we are ready to help turn your renewable energy project into a success.
ATA Renewables offers a comprehensive range of technical advisory services to support investment, acquisition, divestment, and financing decisions in renewable energy projects. Our international experience, gained through the evaluation of hundreds of projects, allows us to identify key technical risks and propose effective mitigation strategies tailored to each situation.
Technical Due Diligence is the flagship service of our Advisory Department. We provide various TDD services for both standalone technologies and hybrid renewable energy projects.
Technical Due Diligence for Financing (Lender’s Technical Due Diligence)
With over 100 GW of projects supported and more than 300 financial institutions advised worldwide, we are a leading provider of technical advisory services for project financing. Under this service, we act as the Lenders’ Technical Advisor (LTA) during the financing and refinancing of renewable energy projects, with proven experience across Europe, Australia, the MENA region, and Latin America.
Technical scope includes:
⦿ Comprehensive technical assessment of the project, including site and asset design review, renewable resource assessment and full energy yield analysis, technical project review, permitting and licensing review, evaluation of key contracts, etc.
⦿ Technical review of the financial model.
⦿ Risk identification for debt providers (banks, funds, etc.).
⦿ Construction monitoring and drawdown certification.
⦿ Technical monitoring during operations.
Our objective is to ensure that the project meets the necessary technical standards and requirements.
Technical Due Diligence for M&A Transactions
Whether supporting an acquisition (Technical Due Diligence for Acquisition - TDA) or a sale (Vendor Due Diligence - VDD), our reports help identify and mitigate key risks, enabling informed strategic decisions and enhancing confidence among all parties involved.
Key activities include:
⦿ Site and asset design assessment.
⦿ Renewable resource assessment (solar, wind, etc.) and energy yield estimates.
⦿ Review of permits, licenses, and authorization.
⦿ Technical assessment of key contracts (EPC, O&M, PPA, etc.).
⦿ Asset condition assessment and remaining useful life analysis.
⦿ Review of technical documentation and regulatory compliance.
⦿ Identification of technical risks and mitigation recommendations.
⦿ Support during Q&A processes with counterparties.
PDD - Product Due Diligence
This service focuses on the technical evaluation of specific equipment (modules, inverters, turbines, structures, etc.) to assess product quality, reliability, and bankability while identifying technical risks. It may be required as part of a financing process, by an IPP evaluating different technology options, or by manufacturers seeking to strengthen their market position and expand into new regions.
Key activities include:
⦿ Technical and documentary review of equipment.
⦿ Assessment of manufacturer reliability and product track record.
⦿ Review of certifications, standards, warranties, and manufacturing processes.
⦿ On-site factory inspections when required.
ATA Renewables provides comprehensive technical monitoring services throughout the construction and operational phases of renewable energy projects. Our approach ensures compliance with quality standards, early identification of deviations, and effective management of technical and contractual risks.
During the Construction Phase
We act as independent technical advisors, regularly monitoring project progress to ensure compliance with schedules, technical specifications, and contractual requirements.
Key activities include:
⦿ Monthly construction progress reports, including physical progress assessment, milestone tracking, and issue management.
⦿ Drawdown Certificates, technically validated to support financial disbursements.
⦿ Provisional Acceptance Certificate (PAC) reports assessing project status at construction completion, performance testing results, and contractual requirements prior to the start of operation.
⦿ Specific reviews of contractual waivers.
⦿ Issue identification and review of corrective action plans and construction schedule recovery plans.
During the Operational Phase
We monitor the technical performance of operating assets, comparing actual performance against forecasts while ensuring proper maintenance practices.
Key activities include:
⦿ Annual Operation Reports, including:
– Comparison of actual versus expected energy production.
– Assessment of key performance indicators (PR, availability, etc.).
– Review of O&M activities and asset physical condition.
⦿ Final Acceptance Certificate (FAC) reports confirming contractual compliance at the end of the warranty period and validating final project acceptance.
Technical analysis and advisory services for hybrid projects combining different technologies to optimize energy generation and maximize asset profitability.
Feasibility Studies
We assess the technical feasibility of hybrid projects involving existing or planned assets.
Key activities include:
⦿ Evaluation of the technical maturity of the hybrid project, integration strategy, and technical risks that may affect construction, operation, and financial viability.
⦿ Verification of site suitability for integrating hybrid systems and compatibility with existing facilities.
⦿ Identification of environmental constraints that may affect both the hybrid and existing installations.
⦿ Assessment of permits and authorizations required for the hybridization of solar PV, wind, and BESS projects, identifying potential gaps that may impact schedules and financial viability.
Optimization Studies
The objective of this service is to optimize Battery Energy Storage System (BESS) sizing, both in terms of power and energy capacity, to maximize project profitability while optimizing participation in currently available electricity markets.
Key activities include:
⦿ Definition of scenarios and assumptions.
⦿ Assessment of participation strategies across different energy markets.
The objective is to determine the technical constraints applicable to the grid connection node under analysis, considering available information from the Spanish Transmission System Operator (REE), and to provide an additional forecast over a defined time horizon.
As this is a qualitative study, the level of restriction is assessed within the area of influence of the connection node at a provincial level.
Supervision and review of factory and field testing activities, including equipment inspections, technical reviews, and verification of compliance with technical specifications.
Quality Control
As Independent Technical Advisors, we actively participate in the quality control process for major equipment.
Key activities include:
⦿ Factory audits.
⦿ Support in the definition and validation of Quality Control Plans for major equipment.
⦿ FAT supervision.
TMY Albedo Assessments
Various solar irradiation databases commonly used within the photovoltaic industry provide Typical Meteorological Year (TMY) albedo estimates. However, these estimates often lack the accuracy required for energy yield assessments of bifacial PV projects.
To address this gap, ATA Renewables has developed its own methodology for calculating long-term monthly albedo levels. Our approach combines:
⦿ Short-term on-site measurements (1 to 7 days).
⦿ Historical satellite data to extrapolate representative annual values (TMY).
With more than 150 sites characterized worldwide, we are pioneers in accurate albedo estimation for bifacial solar projects. Contact us for further information about our published methodology.
Additional On-Site Testing
As part of our independent technical advisory services, we perform on-site testing and inspections to identify equipment failures, determine root causes of incidents, and assess asset performance and behavior.
Key tests include:
⦿ Thermographic inspections.
⦿ IV curve measurements.
⦿ Visual inspections.
ATA provides specialized technical support in arbitration and dispute resolution processes related to energy projects. Our team prepares independent technical expert reports, conducts root cause analyses, evaluates responsibilities, and quantifies technical impacts, working closely with law firms, lenders, developers, and contractors.
As Independent Technical Advisors, we adapt to the specific needs of each asset and project, offering specialized services such as:
⦿ Insurance replacement cost assessments (EML – Estimated Maximum Loss).
⦿ Strategic advisory services for renewable energy businesses.
⦿ R&D projects.
⦿ Technical asset management.
Looking to optimize your project while reducing technical and operational risks?
+34 91 146 01 10
