Solar PV due diligence

Technical due diligence, quality checks and revamping plans for solar PV assets.

Encore supports investors, owners, lenders and operators in the technical assessment of solar PV plants, projects and portfolios.

We review documentation, design and construction quality, performance and critical issues to make risks clearer and define priority actions.

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When it is needed

Decisions supported by technical evidence

The scope is tailored to the asset, the project phase and the decision to be supported.

  • Acquisition or financing of solar PV plants and portfolios.
  • Review of design, supplies, construction and commissioning.
  • Assessment of plants performing below expectations.
  • Definition of revamping, repowering or optimisation measures.
  • Identification of document, technical and permitting gaps.
Areas of support

Three needs, one technical view of the asset

Reviews may cover a project under development, a plant under construction or an operating asset.

Pre-investment

Technical due diligence

Independent assessment of projects, plants or portfolios before acquisitions, financing or other investment decisions.

Construction

Quality checks

Checks on consistency between design, components, documentation and the plant as built, including before testing, commissioning or acceptance.

Operating asset

Revamping and repowering

Technical diagnosis, identification of critical issues and preliminary definition of intervention alternatives to recover performance and value.

Review scope

What we assess

The work plan selects the reviews that are genuinely needed, avoiding standard activities that are not relevant to the assignment objectives.

Technical and performance

Configuration, yield and operation

  • Layout, sizing and plant configuration.
  • Yield assumptions and comparison with available data.
  • Performance, availability, anomalies and identifiable losses.
  • Condition of key components and technical issues.
Documents and permitting

Completeness, consistency and traceability

  • Design, permitting and as-built documentation.
  • Grid connection procedures and technical-administrative documents.
  • Consistency between documents, permitted design and as-built condition.
  • Document gaps and matters requiring further investigation.
Construction quality

Design, components and construction

  • Review of design documents and technical specifications.
  • Checks on components, installation and key interfaces.
  • Document reviews supporting testing and commissioning.
  • Non-conformities, reservations and recommended corrective actions.
Revamping

Alternatives and intervention priorities

  • Technical causes of performance deviations.
  • Replacement, upgrade or reconfiguration options.
  • Initial assessment of technical and permitting impacts.
  • Preliminary plan covering priorities, further studies and delivery phases.
Deliverables

A clear basis for decisions and action

Findings are presented in a practical format, covering evidence, critical issues, priorities and next steps.

Risk register

Classification of technical, document and permitting issues according to materiality and urgency.

Gap analysis

Missing documents, inconsistencies, incomplete reviews and matters to clarify with the parties involved.

Action plan

Corrective actions, further investigations and interventions ordered by technical and operational priority.

Asset phases

A review aligned with the project stage

Development

Projects and pipelines

Review of constraints, project maturity, documentation, grid connection, permits and the technical consistency of assumptions.

Construction

Quality and acceptance

Checks during or at the end of construction to identify deviations, incomplete items and corrective activities.

Operation

Performance and issues

Analysis of data, anomalies and technical condition to understand the causes of deviations and define interventions.

Transaction

Plants and portfolios

Technical due diligence proportionate to the acquisition, financing or transfer process for the asset.

Method

How we structure the assignment

01. Scope

Asset, decision to support, timing, responsibilities and level of detail.

02. Data room

Collection and classification of the available documents and data.

03. Assessment

Technical, document, permitting and performance reviews.

04. Findings

Site inspections, clarification requests and targeted checks where needed.

05. Report

Conclusions, risks, gaps, recommended actions and operational priorities.

Tailored scope

Due diligence is not an indiscriminate review of every aspect of the asset. The scope, exclusions and level of detail are defined according to the decision to be supported and the available documentation.

Related expertise

From assessment to the next activities

Where the assessment identifies design activities or ongoing oversight needs, the process continues through the relevant specialist services.

Design

Engineering and permitting

Design, technical deliverables, permits, grid connection and technical support during construction.

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Management

Asset management

Technical-administrative oversight, documentation, monitoring and ongoing asset coordination.

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Do you need to assess a solar PV plant, project or portfolio?

We can start from the objectives and available documentation to define a technical scope proportionate to the decision.

Talk to Encore