Advisory
Our Advisory team helps investors, lenders, developers and asset owners assess opportunities, manage risks and make informed decisions across renewable energy transactions. Services include Technical Due Diligence (TDD) for M&A, Lender’s Technical Advisory (LTA) for financing and a broad range of specialised technical assessments.
Buy/Sell Technical Due Diligence (TDD)
Technical Due Diligence for acquisition or divestment
Whether supporting the Buy or the Sell side, we provide detailed Technical Due Diligence for wind, solar PV, and BESS assets, evaluating design, performance, resource assessment and compliance with industry standards. Our analysis covers historical performance, P50/P75/P99 estimations, permitting, grid connection, contractual structure, and CAPEX/OPEX assumptions, identifying potential red flags and advising on mitigation strategies to support a fair asset valuation and informed decision-making.
Support during negotiations
We assist our clients throughout the negotiation phase, by providing expert technical advice and responding to data room clarifications, Q&A processes, and SPA discussions. Our goal is to ensure that the technical aspects are clearly understood and properly reflected in the transaction terms.
Lender Technical Advisory (LTA)
Transaction services
We support support lenders during finalization of the Facility Agreement with the Borrower by providing Technical Due Diligence services related to the wind, solar PV assets and BESS to be financed.
Construction monitoring
During construction, including under Bridge Financing structures, we oversee the construction and commissioning of the project to certify drawdown milestones and confirm the correct installation of the project.
Operation monitoring
Throughout the term of the Facility Agreement, we support the lenders in ensuring the plant performs in line with expectations and in compliance with the Facility Agreement requirements.
Preconstruction EYA
We provide bankable Energy Yield Assessments for wind and solar PV assets under development, including long-term resource evaluation, technology selection, layout optimization, and energy modeling to estimate the expected production with defined levels of uncertainty (P50/P75/P90).
All our EYA reports are prepared in accordance with international standards and tailored to the needs of investors, lenders, and asset owners — providing robust, transparent, and trusted documentation to support project financing, refinancing, and asset valuation.
Operational EYA
Building on a detailed performance diagnosis, we perform independent assessments of operating assets based on real production data, evaluating actual performance against expected values, identifying losses and causes of underperformance and highlighting optimization opportunities.
All our EYA reports are prepared in accordance with international standards and tailored to the needs of investors, lenders, and asset owners — providing robust, transparent, and trusted documentation to support project financing, refinancing, and asset valuation.
Operational analysis
Performance diagnosis
We conduct in-depth analyses of operating assets to evaluate their technical performance, as a standalone service or as the foundation for a full Operational EYA. We identify deviations from expected production, quantify losses, and provide recommendations to optimize plant output.
Root Cause investigation
Our team investigates underperformance issues by analysing SCADA data, maintenance records, and design specifications. We identify the root causes, such as equipment failure, curtailment, or grid issues, enabling effective corrective actions.
Independent technical advice
We provide asset owners, investors, and operators with impartial, data-driven insights to enhance their asset management strategies and inform operational decisions throughout the plant’s lifecycle.
Repowering
Site potential assessment
We evaluate the technical feasibility of repowering opportunities by analyzing existing infrastructure, wind and solar resources, available land, and grid capacity to identify the potential for increased installed capacity and maximize the value of the site.
Technical & Regulatory review
We support our clients in navigating the complexities of repowering, including technology selection, permitting requirements, and regulatory compliance, ensuring alignment with current standards and future expectations.
Strategic advisory
Our multidisciplinary team provides guidance throughout the repowering process, from early-stage assessments to project execution, helping clients to unlock additional capacity and value from aging renewable assets.
Useful life extension
Independent lifetime assessment
We perform technical evaluations to assess the feasibility of extending the operational life of wind and solar assets beyond their original design lifespan. This analysis includes reviewing OEM mechanical load assessments, conducting site inspections, reviewing foundation designs, and performing independent site suitability analyses based on actual operational resource data.
Life extension strategy & planning
We outline technically feasible extension scenarios, including the required inspections, retrofits, and component replacements. We also provide high-level CAPEX estimates to support investment planning and decision-making regarding extended operation or repowering alternatives.
Risk identification & compliance considerations
We identify potential technical and operational risks associated with extended operation, such as aging components, reduced performance, and increased failure rates. We also assess regulatory and certification requirements to ensure ongoing compliance throughout the extended lifetime.
Feasibility studies
Site and resource assessment
We conduct preliminary evaluations of proposed sites, including resource analysis, topography, environmental constraints, and land use compatibility, to determine early-stage project viability.
Technical design & optimization
We provide support for layout design, technology selection, and interconnection analysis to optimize the technical configuration of wind, solar, and BESS projects. Our work is aligned with client objectives and site constraints.
Preliminary CAPEX & OPEX analysis
Our feasibility studies include early-stage financial modeling based on realistic investment and operational assumptions. This provides a solid foundation for development decisions and investor engagement.
Contemporary Green Energy: technical due diligence of a portfolio of wind and solar projects
Contemporary Green Energy,.Ltd - Spain
NextEnergy Capital: technical due diligence for an agrivoltaic project
NextEnergy Capital - Italy
NUO - Our asset management platform
The asset management platform developed to increase the performance and improve the management efficiency of your renewable assets.
What is the difference between Technical Due Diligence (TDD) and Lender Technical Advisory (LTA)?
Technical Due Diligence (TDD) is typically performed on behalf of buyers or sellers involved in a renewable energy transaction. It assesses technical risks, project design, performance, permitting status, contractual arrangements and CAPEX/OPEX assumptions to support investment decisions and asset valuation.
Lender Technical Advisory (LTA) is carried out on behalf of financing institutions and supports lenders throughout the financing process, from financial close and construction monitoring through to operational monitoring during the life of the loan.
What does a Technical Due Diligence cover?
Our Technical Due Diligence assessments analyse key technical, operational and commercial aspects of renewable energy assets, including resource assessment, energy production forecasts, design review, permitting, grid connection, contractual structure, historical performance and CAPEX/OPEX assumptions. The scope is tailored to the specific requirements of each transaction.
Can you support both buyers and sellers during a transaction?
Yes. We provide Buy-Side and Sell-Side Technical Due Diligence services for wind, solar PV and BESS assets. Our team also supports clients during negotiations, assisting with data room clarifications, Q&A processes and transaction discussions to ensure technical risks are properly understood and reflected in transaction terms.
When should I involve a Lender’s Technical Advisor?
A Lender’s Technical Advisor should ideally be engaged before financial close. Early involvement allows lenders to identify technical risks, review project assumptions and establish an appropriate monitoring framework throughout construction and operation.
What is the difference between a Preconstruction EYA and an Operational EYA?
A Preconstruction Energy Yield Assessment estimates the expected energy production of projects under development through resource evaluation, technology selection and energy modelling. An Operational EYA evaluates existing assets using actual production data to assess performance, identify losses, investigate underperformance and highlight optimisation opportunities.
Are your Energy Yield Assessments bankable?
Yes. All our Energy Yield Assessments are prepared according to internationally recognised methodologies and tailored to the requirements of investors, lenders and asset owners. Our reports provide robust and transparent documentation to support project financing, refinancing and asset valuation processes.
My asset is underperforming. How can Vector Renewables help?
Our Operational Analysis services help identify performance gaps and their root causes. By analysing SCADA data, maintenance records and technical documentation, we investigate issues such as equipment failures, curtailment, grid constraints and operational inefficiencies. We then quantify losses and provide practical recommendations to improve performance.
Should I consider repowering an existing renewable energy asset?
Repowering may be an effective way to increase energy production, extend asset value and optimise the use of existing infrastructure. Our team assesses site potential, available resources, grid capacity, regulatory requirements and technology options to determine the feasibility and value of repowering opportunities.
Can a wind or solar plant continue operating beyond its original design life?
In many cases, yes. Our Useful Life Assessment service evaluates the technical feasibility of extending the operational life of renewable energy assets through independent lifetime assessments, risk analysis, compliance reviews and life-extension planning. We also assess the investments required to support continued operation.
What is included in a renewable energy feasibility study?
Our feasibility studies combine site and resource assessment, technical design optimisation and preliminary CAPEX/OPEX analysis to determine whether a project is technically and economically viable. The outcome provides developers, investors and asset owners with a solid basis for development decisions and investor engagement.
At what stage should a feasibility study be performed?
The earlier, the better. Feasibility studies are most valuable during the initial stages of project development, before significant investments are made. Early assessment helps identify opportunities, constraints and optimisation measures that can significantly improve project outcomes.
Which technologies do you cover?
We provide Advisory services across solar PV, wind, battery energy storage systems (BESS) and hybrid renewable energy projects, supporting both individual assets and complex portfolios throughout the asset lifecycle.