Our Project Quality Assurance Plan (powergreen/QAP/001) and Occupational Health & Safety Policy (powergreen/HSE/PCY01) govern every project we run. This page is a public summary of both.
In addition, the client's own prescribed standards for design, testing and commissioning are subject to compliance on every project.
Quality can be planned more exactly the fewer the uncertainties are. Planning determines the policies and procedures relevant to the project, defines who is responsible for what, identifies milestones and key performance indicators, and documents compliance.
Assurance ensures project processes guarantee constant quality: following and meeting standards, continuously improving project work, and correcting defects. The quality manager conducts regular process audits and monitors performance metrics day to day.
Control focuses on acceptable standards and performance. Physical measurements are conducted to verify compliance, and the quality manager ensures every physical and performance standard is met and documented.
| Project process | Standard | Review frequency | Responsible |
|---|---|---|---|
| Project planning | ISO 9001 | Monthly review | Project Manager |
| Design | OVE/ONORM E8001 · ISO 9845-1 | After-action review | Project Chief Engineer |
| Procurement | ISO 9001 | Yearly review | Quality Engineer |
| Project management | ISO 9001 | Monthly review | Project Manager |
| Quality control | ISO 9001 | Semester review | Quality Engineer |
| Installation | ISO 9001 | After-action review | Project Chief Engineer |
| Testing & commissioning | IEC 62446 · OVE/ONORM E8001-6-61 | After-action review | Project Manager |
Quality audits, process analysis templates and the Provisional Acceptance Certificate, whose requirements the quality manager has to control and confirm.
The Continuous Improvement Process, After Action Reviews and the Plan-Do-Check-Act cycle. Every review, finding and assessment has to end in a process change that is documented, implemented and communicated to everyone affected.
Cost-benefit analysis, control charts, benchmarking, design of experiments and statistical sampling — the portfolio our quality control works from.
Company profile and role, organisation chart with key personnel, ISO certificates, accreditations, local registration, completed projects, plant and equipment list.
Objective, location and coordinates, tools used, methodology, drawings, identification and summary.
Produced with PV*SOL or PVsyst using recent local climate data, and subject to technical review before approval.
Supplier profile, detailed BOQ, component data sheets, warranty terms, country of origin and previous approvals.
IFC, infrastructure, solar system and electrical room drawings — verified by the QA/QC engineer for contents, clarity, annotations, line weights, numbering and revision status, then stamped and signed before submission.
Scope, definitions, material, tools, manpower, safety requirements, method of installation, connections, system architectures and Inspection Test Plans. Work may not start before a method statement is approved.
Inspections are carried out within one business day of the request, by quality inspectors only. Non-compliance raises an NCR and a CAR within one business day, and all of them are archived and circulated so they are not repeated.
Red line sketches during construction, consolidated into as-built drawings for final review and approval on completion.
Delivered to the end user on completion, in compliance with the client's O&M manual specification.
Approved as submitted. The document is issued for construction reference.
The reviewer marks the points noted; work proceeds against the document as commented.
The reviewer marks the unsatisfactory findings and states the changes required in the revised document.
Issued only where the document does not comply with the project specification, or where the vendor is disqualified from the project. The reviewer must state the reason.
Issued for construction by the client or end user, who holds sole responsibility for them — yet they are still accepted only after review by the chief design engineer and the project manager, and the accepted version is archived up the project hierarchy.
The whole development area, all boundaries, temporary and internal access routes, fence poles and fence top view, foundation locations, every temporary facility with its area, and the routes of temporary electrical, water and sewage services.
Installation heights, foundation details, structural arrangements, dead and live loads where civil work is involved, layered materials shown separately, supports, and the location of service conduits and pipelines.
Panel size and identification, support locations, string routing, cable containment, combiner box and inverter room locations — plus the mounting assembly, preferably in isometric view, with its material properties.
A wiring diagram with component count, arrangement and specification, cable sizes, terminations, load capacities and load details; and an electrical drawing with room size and elevation, component locations, fixation details, cable routes and containment, power outlets, communication ports and the loads on each component.
A minor site deviation is raised in a site meeting with the project and design managers, agreed by mutual consent, hatched in red over the approved drawing and submitted with the construction manager's comments — then consolidated into as-builts, signed by the construction manager and referenced to the IFC drawing numbers.
A dedicated procurement and logistics team works alongside the quality control team, so the manufacturer's shipment norms and the inspection on arrival are handled by people who talk to each other.
Every purchase request draws quotations from at least three suppliers into a comparative statement. The end user of the material decides strictly on compliance to specification, quality and price — and the statement is archived with the purchase order.
The QA/QC engineer inspects and the QA/QC manager verifies. Procurement carries the responsibility of making sure nothing reaches the project without passing quality inspection.
Non-compliance raises an NCR to the procurement team, who take it back to the supplier for corrective action.
Procurement makes sure the supplier actually performs the action prescribed by quality control, and material received or modified under a corrective action is inspected again.
A report on a non-conforming item has to end in a corrected practice, not only a replaced part — and suppliers qualified to ISO 9001 must be able to demonstrate how they changed theirs.
| Section | Item | Visual inspection | Detailed inspection | Documents verified |
|---|---|---|---|---|
| Vital project materials and equipment for the solar system | Solar photovoltaic panels | 100% on unpacking and installation | Random samples based on string polarity testing | Flash reports · warranty letter · country of origin · factory inspection test reports |
| Solar inverters | 100% on unpacking and installation | 1 in 500 | Warranty letter · country of origin · certificate of conformity | |
| Mounting structure | 100% on unpacking and installation | — | Warranty letter · country of origin · mill test certificate | |
| DC, AC and communication cables | 100% on unpacking and installation | — | Mill test certificate · country of origin · warranty letter | |
| Switchgear | Random 1 in 100 | — | Warranty letter · certificate of conformity | |
| Energy meters | 100% | — | Calibration certificate · warranty letter | |
| Cable containment | 1 in 500 pieces | — | Mill test certificate | |
| Monitoring and control | Monitoring and control elements | Identify physical damage, if any | — | — |
| Civil work elements | Cement | Verification of brand only | — | — |
| Reinforcement materials | 1 in 500 | — | Mill test certificate | |
| Aggregates | Inspection for uniformity | — | — |
Each department manager identifies the competency needs of everyone performing work that affects quality, drawing on job requirements, internal audit reports and corrective action activities. An annual review with every employee covers both their training needs and whether last year's training actually worked.
Every employee receives informal on-the-job training from the responsible area supervisor. After a 60-day trial period new and transferred employees are evaluated against the position requirements before qualification is awarded. Specialised skills such as welding and soldering are formally certified.
New employees receive their induction into the quality system from the Quality Engineer, and the HR administrator maintains the record of education, skills, experience, training and qualifications for every employee.
A facility management procedure covers the human and physical factors that let people produce conforming work: basic human needs, safety and ergonomics, light, personal space allowances, cleanliness, heat and humidity, space — and language.
Management meets internally before the project starts to agree what a safe work zone requires here, then observes the work environment for hazards from installation through to handover, with quality control documenting every identification and the corrective action taken.
PV power plant startup and commissioning with the grid operator.
A four-hour performance test, the small deficiencies list, the spare parts list and the plant operation manual.
Component warranties, as-built drawings, complete plant documentation and component data sheets.
Yield inspection over the warranty period — the plant is accepted on what it produced, not on what it promised.
Managers and supervisors carry primary responsibility for providing and maintaining a working environment that is safe and without risks to health.
We employ only medically checked and physically fit personnel, according to the nature of the job.
The health and safety representative undertakes a monthly workplace inspection, convenes a monthly OH&S meeting and tables an inspection report at the staff meeting.
Employees have the most detailed knowledge of the work processes, so every worker is encouraged to report any health and safety matter directly to their supervisor or the safety representative.
Every new employee is briefed on the HSE policy during induction; supervisors attend OH&S awareness training and the safety representative attends regular refresher courses.
Secure the scene, treat the injured, alter nothing until enquiries are complete, photograph and sketch the site, gather witness accounts and report to the relevant authorities.
The OH&S policy and its procedures are reviewed periodically against the effectiveness of each element and against changes in labour regulation.
Quality audits, mentoring and training
Quality control and documentation
Weekly project, management and document reviews
Monthly workplace inspections and incident investigation
Tell us about the site, the load and the timeline. We will come back with a feasibility view, a simulated yield and a clear route to commissioning.
