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SgurrMetMast: designed for purpose, built to last

We understand how important accurate data collection is for your project.

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SgurrEnergy has utilised its significant expertise within the wind energy industry to provide a portfolio of meteorological (met) masts for wind measurement.

The SgurrMetMast portfolio includes:

• A guyed tubular met mast design with heights of up to 80m

• A guyed lattice tower met mast design with heights of up to 200m

• A permanent free standing lattice tower met mast design with heights of up to 200m.

All met masts are installed with wind monitoring instrumentation to provide bank grade wind data and have multiple mounting options.

These innovatively designed met masts, coupled with our measurement and analysis services, will ensure you have the highest quality, IEC compliant wind data for your site.

SgurrMetMast fabricators are ISO 9001 accredited and independently audited.

All SgurrMetMasts can be installed on varying complexity of terrain, including:

• Arable land• Forestry• Deforested land• Hillside• Mountainous• Offshore (permanent mast only).

Temporary guyed tubular SgurrMetMastsThe temporary guyed tubular met mast can be installed with all necessary monitoring instrumentation to suit the requirements of your wind farm project.

Temporary guyed tubular met masts offer the following features and benefits as standard:

• High quality material• Reaching heights of up to 80m• Short 3m section for ease of deployment• Independently verified by Ramboll and assessed in accordance with Eurocode 3

Tubular tilt up mast specifications

Mast height Up to 80m

Steel baseplate and temporary dig-in or rock anchors

Installation method Tilt-up using 15m ginpole

Material All steelwork S355/J2 hot dip galvanised to EN ISO 1461

6mm - 8mm steel wire rope

Max wind loading with no ice 58.7m/s @ 80m, max ice loading with no wind 25mm, CE marked

Foundation

Guy wires

Design standard

Design life 50 years

Side booms Side booms are designed in accordance with IEC 61400-12-1 for tower flow distortion of 1.0%

Section dimensions 3m length, 219/168mm diameter, 4mm wall thickness

Instrument uprights Instrument uprights are designed in accordance with IEC 61400-12-1 for boom flow distortion of 0.5%

SgurrMetMast type Tubular tilt-up, circular cross section

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Guyed lattice tower SgurrMetMastsThe guyed lattice tower met mast design allows climbing of the mast structure, reducing the cost of maintenance in the event of instrumentation failure.

This particular mast can be installed without the need for large cranes, reducing the required plant machinery associated with installation.

The guyed lattice tower met mast design allows for high wind and ice loadings so is ideal for remote locations and low temperature conditions. The design offers the following features and benefits as standard:

• High quality materials for ease of maintenance• Reaching heights of 200m• Installation by multiple methods • Four guy directions

Page 03/06 Our objective when selecting SgurrEnergy was to make sure we get a bank grade wind

resource assessment. The met mast and Galion Lidar wind measurement campaign proved to be a cost effective combination and was

designed and delivered as proposed.

Harald Dirdal CEO, Havgul Clean Energy AS

Guyed lattice tower mast specifications

Mast height Up to 200m

Concrete or rock foundation, dig-in or rock anchors

Installation method Lifting derrick, mobile crane or helicopter

Material All steelwork solid S355/S460 hot dip galvanised to EN ISO 1461

9.2mm - 17.6mm steel wire rope

Site specific design carried out to Eurocode standards for wind and ice loading, CE marked

Foundation

Guy wires

Design standard

Design life 50 years

Side booms Side booms are designed in accordance with IEC 61400-12-1 for tower flow distortion of 1.0%

Section dimensions 2m length, 600mm - 1050mm side width, 25mm - 60.2mm frame leg diameter

Instrument uprights Instrument uprights are designed in accordance with IEC 61400-12-1 for boom flow distortion of 0.5%

SgurrMetMast type Guyed lattice, square cross section

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SgurrEnergy has utilised its significant expertise within the wind energy industry to provide a portfolio of ideal meteorological masts for wind measurement.

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Permanent freestanding lattice tower SgurrMetMasts

Permanent freestanding mast specifications

Mast height Up to 200m

Reinforced concrete foundation

Installation method Small mobile crane for section assembly, large mobile crane for mast lift

Material Tower legs: steel S355/J2

Not required as struture is free standing

Site specific design carried out to Eurocode standards for wind and ice loading, CE marked

Foundation

Guy wires

Design standard

Design life 50 years

Side booms Side booms are designed in accordance with IEC 61400-12-1 for tower flow distortion of 1.0%

Section dimensions Variable section lengths, side widths and frame leg diameter

Instrument uprights Instrument uprights are designed in accordance with IEC 61400-12-1 for boom flow distortion of 0.5%

SgurrMetMast type Freestanding lattice, triangular cross section

Tower lattices: steel S235/JR (solid sections) / S355J2 (hollow sections)

All steelwork hot dip galvanised to EN ISO 1461

The permanent freestanding lattice tower mast is specifically designed for each site location, resulting in the ideal met mast for your project.

This permanent mast can be erected either on or offshore and its small footprint means there is a low impact on the surrounding environment.

This mast has integrated rest platforms and climbing anchor points. Instrumentation can be maintained easily and cost effectively due to the climbable structure.

Permanent freestanding lattice tower masts offer the following features and benefits as standard:

• High quality climbable materials for ease of maintenance

• Reaching heights of 200m• Installation by multiple methods• Site specific design• For use on and offshore• Rest platforms incorporated• Various fall arrest systems.

This product is complemented by a SgurrEnergy permanent met panel which allows direct connection to wind farm fibre optic SCADA systems.

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SgurrEnergy’s expertise has been invaluable to empowering

the Government of Malawi’s priority to advance large scale

wind energy in the country.

Peter DauenhauerMREAP programme manager

Case studies

Client: University of StrathclydeLocation: MalawiCapacity: 4-5MWService: Guyed tubular SgurrMetMast

installation and measurement campaign

SgurrEnergy completed the installation of two SgurrMetMasts in Malawi for the Wind Energy Preparation Programme (WEPP), part of the larger Malawi Renewable Energy Acceleration Programme (MREAP).

Our scope of work involved installing and commissioning two 70m masts, including all instrumentation, data logging, communication and power systems, using local plant and haulage companies in Malawi.

A satellite communication system fed the data back to SgurrDataPortal where, following detailed analysis, two energy yield reports were delivered to the Scottish and Malawi governments, the first of their type in Malawi.

The overall project scope is extensive and includes wind resource mapping, site selection, met mast supply and installation, as well as data download and analysis. Further stages of the WEPP project include detailed feasibility study work, capacity building and bank-grade energy yield assessments.

Wind Energy Preparation Program (WEPP)

Client: ScottishPower RenewablesLocation: ScotlandCapacity: 38MWService: Guyed tubular SgurrMetMast

installation and measurement campaign

SgurrEnergy was appointed by ScottishPower Renewables to install a 70m SgurrMetMast at their Beinn an Turic site as part of a measurement campaign for the proposed third phase of the site. The installation, which will gather data for 24 months, was conducted on challenging site topography and undulating terrain. Our expert mast installation team undertook detailed logistical planning for safe movement around the site identifying a number of access issues due to deep peat and large peat hags in the area. Our management of the installation included identifying access track upgrading for delivery of personnel, plant and vehicles to the mast location and the safe, timely installation of the tubular mast.

Our scope of work included:• Pre-construction site visit to assess site access, ground conditions and met mast location• Supply and installation of 70m SgurrMetMast and instrumentation• Operation and maintenance of the met mast for the duration of the campaign• 24 month data recovery and monthly wind data reporting campaign via SgurrDataPortal.

Tonstad measurement campaign

Client: Havgul Clean Energy ASLocation: NorwayCapacity: 200MW (planned)Service: Guyed lattice

SgurrMetMast installation and measurement campaign

Norwegian developer, Havgul Clean Energy AS appointed SgurrEnergy to design and implement a comprehensive measurement campaign for a proposed 200MW wind farm in Tonstad, Norway.

As part of the project, the SgurrEnergy team installed an 80m guyed lattice met mast at Tonstad in June 2014. The mast was safely and efficiently installed by helicopter at this inaccessible mountain site. Other challenges during the wind measurement campaign were heavy snowfalls and icing conditions but the met mast continues to provide reliable and consistent wind data beyond the initial 12 months period.

A Computational Fluid Dynamics (CFD) model was used to identify the areas of the site with the greatest uncertainty, helping to design an optimised wind measurement campaign. Wind measurements were collected by Galion Lidar, also deployed safely by helicopter, at two additional locations within the site during the six month long campaign, reducing uncertainty across the complex terrain.

Scheduled to start production in 2018, the Tonstad project will feed into the Norwegian central grid at the connection point of the two new interconnectors to Germany and England.

Beinn an Turic Phase III

SgurrEnergy successfully managed the installation of a 70m tubular guyed met mast on an area of Sgreadan Hill, involving peat hags. The project was completed within the anticipated timescales based on the difficulties introduced by the undulating ground. ScottishPower Renewables was pleased with the project.

David MalinsSenior Energy Yield AnalystScottishPower Renewables

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SgurrMetMast products and services are supported by the expertise of renewable energy consultancy, SgurrEnergy.

Operating from our network of 17 offices across Europe, North and South America, Africa and Asia, our global team of over 300 engineers and consultants has extensive international experience and an impressive track record – having assessed more than 160GW of renewable energy projects in over 90 countries, spread across six continents. We are part of Wood Group, an international energy services company with extensive experience across the global energy services sector.

We provide advice on renewable energy projects from small off-grid power systems, specially designed for remote locations, right up to some of the world’s largest renewable energy developments, with capacities of hundreds of MW, across all terrains and environments - from the Galapagos Islands to Mongolia.

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AccreditedWe’re committed to quality.

We hold triple certification in British quality standards and are committed to delivering the very highest standards of Quality, Environmental and Health & Safety Assurance.

This commitment is demonstrated by our continued certification to OHSAS 18001 (Health & Safety Management), ISO 9001 (Quality Management) and ISO 14001 (Environmental Management) standards.

Our technical skill set has also been accredited to UKAS ISO/IEC 17025:2005 standard. This achievement reflects our ability to perform power curve analysis on wind turbines to the standard, IEC 61400-12-1 (Laboratory Testing), making us one of the few renewable consultancies in the world to achieve this certification.

This award compliments our triple accreditation and further emphasises our commitment to enhancing standards through continuous quality improvement practices and underlines our dedication to the provision of technical excellence.

No part of this document or translations of it may be reproduced or transmitted in any form or by any means, electronic or mechanical including photocopying, recording or any other storage retrieval system, without prior permission in writing from SgurrEnergy. All facts, figures, product and service provisions correct at time of print.

All rights reserved. © Copyright SgurrEnergy Ltd 2016. SgurrEnergy: A Wood Group Company. Version: B3

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