Frequently Asked Questions (FAQs)

About Measnet

Measnet is an international network of wind energy measurement organizations. We are an independent and technically oriented non-profit founded in 1997. 

Our mission is to ensure high-quality testing and technical services for the renewable energy industry, along with consistent interpretation of standards and recommendations. We also advocate for promoting best practices across the sector. 

Measnet members are recognized international testing and technical services providers, ISO/IEC 17025 accredited, which are legally independent from manufacturers, end users or other entities that could compromise the impartiality of their activities

By harmonizing measurement methodologies and conducting intercomparisons between technical laboratories, Measnet helps improve accuracy and trust in renewable energy data, supporting better decision-making across the industry.

Since 2015, we have collaborated closely with IECRE as the exclusive provider of Proficiency Tests for the wind sector, in full alignment with its regulations. This partnership, together with the A-Liaison established with IEC TC 88 group in 2019, strengthens our role in fostering technology transfer and accelerating the development of technical guidelines for wind measurement.

Membership

Testing and technical services providers, legally independent from manufacturers, end users or other entities that could compromise their impartiality.

It is an essential requirement that they hold ISO/IEC 17025 accreditation in the areas of expertise they wish to join, or that they are part of the IECRE system.

They also must have proven expertise in measurement and testing in renewable energy.

Finally, the ideal candidate should be committed to the highest quality standards and willing to share technical knowledge with other Measnet members.

Becoming a Measnet member means joining a global network of technical excellence in the renewable energy sector. Our members enjoy exclusive benefits that strengthen their leadership and credibility in the market, such as:

  • The Measnet Stamp is a recognized quality mark in renewable energy, valued in international tenders and trusted by customers, investors and financial institutions.
  • Every member has a guaranteed seat on the Council of Members and access to the Expert Groups in their competence area(s), to participate in high-level technical discussions and knowledge sharing.
  • Gaining a unique chance to represent Measnet in IECRE and the IEC TC 88 group.

1- To apply for Measnet membership, it is an essential requirement that your organization hold ISO/IEC 17025 accreditation in the area of competence for which they wish to be accepted, or alternatively be a member of IECRE.

Members of Measnet can also apply to join additional competence areas within the organization.

2- The next step is to apply for membership by filling out the online form available on our website.

3- If your application passes the Executive Board’s preliminary review, your laboratory will need to undergo a technical assessment to verify that it meets the technical and quality requirements for Measnet members. This process is conducted in accordance with the Measnet Applicant Assessment Procedure.

>> Before applying, we encourage you to carefully read the information on our website.

The estimated timeline for a totally new joiner (neither member of Measnet nor IECRE) is roughly six months. Nevertheless, the schedule could differ according to the candidate’s characteristics and unforeseen circumstances.  

If the assessment team identifies minor deviations during the process, the candidate will have the opportunity to correct them within a specified timeframe.

If, by the end of this period, these deviations have not been corrected and the candidate is subsequently rejected, they may reapply when they consider themselves sufficiently prepared.

However, this application will be treated as a completely new process, meaning that they will be required to pay the full application fees again.

Proficiency Tests (PTs)

Measnet Proficiency Tests (PTs) are globally recognized as the benchmark for excellence in the wind energy industry. We are the exclusive provider of IECRE-compliant PTs for the wind energy sector since 2015.

They consist of intercomparison between different technical laboratories’ wind measurements in a determined area of competence, under controlled conditions, to assess their performance.

Throughout, each participant’s identity is kept confidential; they are assigned numerical IDs to guarantee complete impartiality.

Our PTs provide clear, independent validation that participants meet the highest international standards of quality and performance.

Participating in a Measnet Proficiency Test provides independent proof of your organization’s technical competence while supporting accreditation requirements and access to international markets.

It also serves as a reliable quality mark for customers and helps strengthen global recognition and trust in your measurement results.

No, as long as it is an open PT conducted in accordance with IECRE standards for the wind energy sector, described in the OD 551-17. Measnet’s Expert Groups also conduct internal PTs, but these are reserved exclusively for Measnet members.

According to the IECRE OD 551-17 for the wind energy sector, the following types of organizations are eligible to participate:

  • A-Participants: RETLs (Renewable Energy Testing Laboratories) and applicant RETLs in the respective competence area and other TLs (Testing Laboratories) approved by SG551.
  • B-Participants: RECTFs (Renewable Energy Customer Test Facilities), IECRE member organizations (including OEMs, end users, RECBs, other TLs) and other organizations approved by SG551.

They are typically organized into two rounds. Only Type A participants are admitted to Round 1. Type B participants join later in Round 2.

The process is as follows:

  • Round 1: Data distribution>Participants’ results submission>Results analysis by PT Conductor>Discussion and creation of clarification sheets (if applies.)
  • Round 2: Data distribution>Participants’ results submission>Results analysis by PT Conductor>Participants’ report releasing>Final public report releasing

 

Please note that participants in Round 1 DO NOT need to reapply for Round 2.

We encourage you to review the corresponding section on our website for further information.

The frequency may vary, although a new PT is typically announced every three years in each area of expertise.

Please check the calendar for open calls.

Currently, the fees are as follows:

  • All competence areas, except Wind Sensor Calibration: €2,500
  • Wind Sensor Calibration: €1,500

 

These rates exclude VAT. Additionally, these fees do not include shipping costs of devices needed for certain PTs (such as anemometers or samples), which will be covered by the participants.

Please note that these fees may be updated periodically.

Interested organizations must submit their application via the online form on our website, attaching the master agreement provided, duly completed and signed.

Before applying, we encourage you to carefully read the information on our website.

Participants in the IECRE system, or those in the process of joining it (provided they can properly show proof), are entitled to participate in a Correction Plan Phase managed by IECRE. After the successful completion of this phase, the participant will be listed as a positive result in the Proficiency Test.

If the participant does not fall into any of these categories, they must reapply for the next edition of the PT.

Expert Groups

Measnet Expert Groups are the technical core of the association. They bring together member laboratories to share expertise, align measurement practices, and contribute to the development and consistent application of renewable energy standards within specific wind measurement fields.
Each Expert Group is composed of representatives from Measnet member technical laboratories. Every group is led by a Coordinator elected by its members, ensuring structured collaboration and effective technical exchange.

Expert Groups play a central role in shaping Measnet’s technical direction. They support the Executive Board and Council of Members on technical matters, contribute to the definition and revision of procedures, and promote improvements to standards.

They also represent Measnet in selected IEC TC 88 subgroups and support the organization of Proficiency Tests under IECRE rules, helping ensure alignment with evolving industry needs and international standards.