Get in touch
ZX Lidars
Want to know more?

Get in touch to find out more about our Lidars or services.


+44 (0) 1531 651 000
ZX Lidars Willow End Blackmore Park Rd Malvern WR13 6BD
Back to top
 
14/01/14 -

ZephIR 300 verified against IEC compliant Lelystad met mast

ZephIR Lidar, the industry-leading wind lidar manufacturer, is proud to announce that its flagship system, ZephIR 300, has been successfully verified against a fully IEC compliant met mast at the Lelystad Test Site.

The verification, carried out by Ecofys WTTS in parallel with three other ZephIRs, deems that ZephIR 300 “is suitable for field measurements as a replacement of cup anemometers in flat terrain.”

Figure 1: ZephIR 300 deployed at Test Site Lelystad during its verification.

The 81 meter MM02/03 mast is equipped with cup anemometers at heights of 40 m, 60 m and 81 m. It also has vanes at heights of 76 m and 79.5 m for wind direction measurement. The ZephIR 300 was collecting wind data at 40 m, 60 m and 80 m between 19th March 2013 and 11th April 2013.

The results show “consistent, highly-correlated measurements with slopes near unity,” said Ecofys’ official report. It continued: “The calculated uncertainty in the lidar wind speed measurements is … in line with high quality anemometry. The calculated uncertainty tables can be used directly in wind resource assessments, together with the classification uncertainty and site-specific uncertainty components.”

It also states that “the lidar measurements were also validated against the NORSEWInD (Northern Seas Wind Index Database) criteria which stipulate thresholds for the quality of the correlation. The lidar meets the majority of the NORSEWInD criteria … The overall high correlations and excellent linear regression fit indicate that the lidar is functioning properly with high accuracy.”

ZephIR 300 was also found to be insensitive to external conditions: “Sensitivity tests of the wind speed deviation revealed that the wind speed deviation shows no significant linear correlation to external conditions: vertical wind speed, horizontal wind speed, turbulence intensity or rain. This indicates that the lidar is relatively insensitive to these factors.”

Ian Locker, Managing Director of ZephIR Ltd, said: “ZephIR 300’s successful verification against this fully IEC compliant mast adds to the substantial body of evidence gathered by ZephIR Lidar, our clients and industry leading organisations such as Ecofys. The independent report’s statement that ‘the [ZephIR] is suitable for field measurements as a replacement of cup anemometers in flat terrain’ is an important step forward for lidar technology as a whole. It shows beyond doubt that our lidar is capable of delivering met mast quality data, and that verification is very exciting.”

Erik Holtslag, Ecofys WTTS Operational Manager said: “The verification report shows that the uncertainty at all heights measured by ZephIR is low after comparing it with the IEC compliant TSL-MM02/03 met mast. Ecofys WTTS deems that the ZephIR 300 is suitable for field measurements as a replacement of cup anemometers in flat terrain. We are happy to furthermore see our 81 m mast has been replaced by a tailored 120 mast including full test pad functionality for plug and play LiDAR verification and validation.”

ZephIR 300 measures wind characteristics onshore and on fixed or floating platforms offshore from just 10 metres (33 feet) up to 300 metres (984 feet) from installed position to inform wind regime and quality studies during the development and operation of wind farms onshore and offshore. ZephIR 300 is accurate, reliable and affordable, adding value to wind energy projects at every stage – from pre-planning, through development and on to operation. Every system is uniquely subjected to an industry-approved validation process, part of which occurs at the UK’s Lidar and Sodar test site, ensuring repeatable finance-grade data.

Notes for Editors

About ZephIR Ltd.

In 2003 we released the first commercial wind lidar, ZephIR®, exploiting decades of research at UK government Research & Development establishment QinetiQ. Designed specifically for the wind industry ZephIR has paved the way for many of the remote sensing devices seen in the market today. Our original lidar technology continues to innovate with world firsts such as taking measurements from a wind turbine spinner and being the first to deploy an offshore wind lidar, both fixed and floating. ZephIR has also now amassed more than 3 million hours of operation across 650+ deployments globally spanning a decade of commercial experience. For wind measurements onshore, offshore and in turbine-mounted applications, ZephIR provides accurate, reliable finance-grade wind data.

ZephIR Ltd. is a wholly owned subsidiary of Fred. Olsen Ltd. – established in the UK in 1963 with business interests primarily focussed on renewable energy, including ZephIR. Visit www.zephirlidar.com for more information.

About Ecofys WTTS

Ecofys WTTS provides high quality wind measurement services based on its 15-year experience. Since its foundation in 2010, Ecofys WTTS is also the operator of the largest site for wind turbine prototyping testing and certification in Europe, located in Lelystad in the Netherlands. Ecofys WTTS is a subsidiary of Ecofys, a consultancy company with an international track record of 30 years in the wind energy sector. Our aim is to serve our clients with cutting edge wind measurement technology prepared for future international standards. With safety and quality first, we provide front running solutions to our clients. Ecofys WTTS is accredited by DNV according to ISO 9001:2008 quality standard for all its activities.

Visit www.ecofyswtts.com for more information.

Find The Right Lidar for you

We can help you find the right Lidar for your needs by answering a few questions

Find The Right Lidar for you

What do you need wind data for?

Image Caption 1

Site Assessment

Image Caption 2

Operational Measurements

Image Caption 3

Other

Find The Right Lidar for you

Where do you need to gather data?

Offshore

Onshore

Both onshore and offshore

Find The Right Lidar for you

How long do you need this data for?

<1

PERFECT FOR:

Small scale projects

Temporary events

Less than 1 year

1-2

PERFECT FOR:

Small scale projects

Temporary events

1-2 years

3+

PERFECT FOR:

Long term projects

Operational measurements

3 years +

5

Our Recommendation
ZX Lidars - ZX Measurement Services

Learn more
Our Recommendation
ZX Lidars - ZXTM

Validate your wind turbine performance and reach financial close with nacelle based Lidar Power Performance Testing. Optimise asset performance with operational power curve and yaw measurements. Develop wind farm Lidar control strategies with wake steering and load control.

Power Performance Measurements and Testing to IEC standards including IEC 61400-50-3:2022

Accepted by all major turbine OEMs

Unique measurements of wakes and complex flow

True wind shear and wind veer measurements across the whole rotor

Learn more
Our Recommendation
ZX Lidars - ZX300M

Reduce your offshore wind farm project and financial uncertainty by measuring wind characteristics higher than a met mast and by mobilising measurements across a whole site with wind Lidar. Integrated in to all major Floating Buoy platforms.

Wind resource assessment and measurements offshore

Responsible for 95%+ of all new offshore wind measurements globally

£150bn of finance invested in clean energy from ZX 300M data

10-300m range - the widest range available of any Lidar

Learn more
Our Recommendation
ZX Lidars - ZX300

Reduce your onshore wind project and financial uncertainty by measuring wind characteristics higher than a met mast and by mobilising measurements across a whole site with wind Lidar. Be flexible within your planning applications by using a low visual impact, low height device.

Wind resource assessment and measurements onshore

Bankable standalone wind data in simple and complex terrain

Extreme environments, proven operation for 10 years

10-300m range - the widest range available of any Lidar

Learn more

Thank you for your interest in our products.

It looks like we need more information to be able to help you.

If you click on the button below and leave your information, one of our support team will get in touch to help you find the right product.

This website uses cookies
This site uses cookies to enhance your browsing experience. We use necessary cookies to make sure that our website works. We’d also like to set analytics cookies that help us make improvements by measuring how you use the site. By clicking “Allow All”, you agree to the storing of cookies on your device to enhance site navigation, analyse site usage, and assist in our marketing efforts.
These cookies are required for basic functionalities such as accessing secure areas of the website, remembering previous actions and facilitating the proper display of the website. Necessary cookies are often exempt from requiring user consent as they do not collect personal data and are crucial for the website to perform its core functions.
A “preferences” cookie is used to remember user preferences and settings on a website. These cookies enhance the user experience by allowing the website to remember choices such as language preferences, font size, layout customization, and other similar settings. Preference cookies are not strictly necessary for the basic functioning of the website but contribute to a more personalised and convenient browsing experience for users.
A “statistics” cookie typically refers to cookies that are used to collect anonymous data about how visitors interact with a website. These cookies help website owners understand how users navigate their site, which pages are most frequently visited, how long users spend on each page, and similar metrics. The data collected by statistics cookies is aggregated and anonymized, meaning it does not contain personally identifiable information (PII).
Marketing cookies are used to track user behaviour across websites, allowing advertisers to deliver targeted advertisements based on the user’s interests and preferences. These cookies collect data such as browsing history and interactions with ads to create user profiles. While essential for effective online advertising, obtaining user consent is crucial to comply with privacy regulations.