Case Study 31: DVOR Interference Investigation, Indian Ocean

Case Study 31: DVOR Interference Investigation, Indian Ocean 

Pager Power was recently contacted by the operator of a large onshore wind farm who had received a letter from the national civil aviation authority. The concern related to a DVOR (Doppler VHF Omni Range) aeronautical navigation beacon which was found to be operating erroneously following a routine calibration flight. Pager Power was commissioned to undertake an investigation to determine whether the wind farm was to blame.
Pager Power’s findings lead to the conclusion that the observed interference was not due to the wind farm and could well have been due to recent developments built in the vicinity of the DVOR. Any risk of the wind farm having to shut down was removed.

 

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Case Study 30: Tullamore Solar Farm, ROI

Case Study 30: Tullamore Solar Farm, ROI 

In 2016, Elgin Energy commissioned Pager Power Ltd to investigate and assess the possible effects of glint and glare from a proposed solar photovoltaic (PV) development located northwest of Tullamore in County Offaly, Ireland. The results of Pager Power’s Glint and Glare Assessment were accepted by the local planning authority and Offaly County Council subsequently awarded planning permission for the Tullamore Solar Farm in mid-2017.

 

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View Building Development, London, UK Case Study

Case Study 29: Building Development, London, UK 

Pager Power was engaged by a building developer to manage the television and wireless communication considerations for a proposed building development in north London, UK. This related predominantly to potential disruption to terrestrial television services for residents and potential interference to microwave links operated by private companies.

Pager Power’s analysis was submitted to the council in order to address their concerns regarding television reception and related impacts. The development was consented in 2016.

 

 

 

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View Tall Building Development, Manchester, UK Case Study

Case Study 28: Tall Building Development, Manchester, UK 

Pager Power was engaged by a building developer to manage the aviation safety considerations for a proposed tall building development in central Manchester, UK. This related predominantly to operational implications for Manchester Airport and NATS. Pager Power's assessments suitably addressed all issues raised by Manchester Airport and NATS. The aviation objections were lifted and the development was able to proceed.

 

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View Clochnahill Wind Farm Claim for Compensation Case Study

Case Study 27:Claim for Compensation, Clochnahill Wind Farm, Aberdeenshire, Scotland

The owner of the Clochnahill Wind Farm made a compensation claim against the National Grid as gas pipelines across the site were limiting the area on which wind turbines could be erected. The claim was heard at the Lands Tribunal for Scotland with Pager Power providing both written and verbal evidence. The Land Tribunal made an award amounting to around 10% of the amount claimed by the land owner.


 

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View Hadlow Solar Photovoltaic Development Case Study

Case Study 26: Hadlow Solar Photovoltaic  Development, Kent, England

A developer proposing a solar photovoltaic development adjacent to a railway line engaged Pager Power to undertake a glint and glare assessment to overcome concerns raised by Network Rail. The analysis confirmed that there was no significant impact upon Network Rail infrastructure and safety expected due to the presence of the proposed solar farm. As a result Network Rail had no objection to the development, planning permission was granted and the solar farm became operational in 2015.


 

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View Holy Isle Wind Development Case Study

Case Study 25: Holy Isle Wind Development, Scotland

Pager Power was engaged to assess the impact of the Holy Isle Wind Development, a six-turbine scheme located on Holy Isle in Scotland. There were a number of prominent challenges associated with this project including finding locations where a turbine would not be visible or detectable to the PSR at GPA. The planning application for the Holy Isle Wind Development was then submitted in July 2016 and subsequently gained planning permission.
 

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View Tower Hayes Solar Photovoltaic Development Case Study

Case Study 24: Tower Hayes Solar Photovoltaic Development, England

A developer proposing a solar development adjacent to and east of a railway line required a glint and glare assessment to overcome initial concerns raised by Network Rail on the grounds of glint and glare. Pager Power was engaged to investigate the effects on Network Rail infrastructure by undertaking geometric solar reflection calculations. The analysis demonstrated that no significant impact upon Network Rail infrastructure and safety was expected due to the presence of the proposed solar park. Planning permission for the solar park was granted in July 2015 and it became operational in mid-2016. 


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View DHale Farm and Woodtown Farm, Bournemouth Case Study

Case Study 23: Hale Farm and Woodtown Farm, Bournemouth, England

The proposed solar farms located close to and in line with the runway at Bournemouth Airport came up against a significant objection on the grounds of glint and glare. Pager Power was engaged to investigate the effects of glint and glare by undertaking geometric solar reflection calculations. After the initial assessment, a meeting with Bournemouth Airport was arranged to discuss the results and the ways forward. The challenge was to design a layout that would be economically viable whilst also producing solar glare within acceptable limits. Both solar farms subsequently obtained planning permission and became operational in 2015.


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View Dengie Crop Wind Turbine, Essex Case Study

Case Study 22: Dengie Crops Wind Turbine, England

The proposed wind turbine raised concerns from London Southend Airport surrounding the impact of the development on the Primary Surveillence Radar (PSR). After radar line of sight analysis showed that the turbine would likely be visable to the radar, Pager Power provided an overview of the suitable mitigation options and engaged with the airport. A mitigation strategy was agreed, leading to the planning objection being removed subject to a condition agreed between the airport and the developer. Planning permission for the turbine was granted in August 2015.


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View Case Study 21: Dunbeg Wind Farm, Northern Ireland

Case Study 21: Dunbeg Wind Farm, Northern Ireland

Pager Power was commissioned to complete the communications analysis as part of the Environmental Impact Assessment (EIA) for the Dunbeg Wind Farm. Two communications links were identified as running across the planned development site, and it was discovered that two turbines had the potential to affect the operation of both links. Following consultation with the link operators, a viable mitigation option was agreed. Dunbeg Wind Farm became operational in 2016.


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View Case Study 20: Lilbourne Wind Farm, England

Case Study 20: Lilbourne Wind Farm, England

While in the planning stages, Lilbourne wind farm was objected to by Coventry Airport. Concerns were raised regarding the impact of the development on its radar, and the fact that the development would lay beneath an airport approach route. Pager Power advised the developer, negotiated with the airport and provided expert evidence for the public inquiry. The 5 turbine wind farm has been operational since 2014.


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View Fallago Rig Wind Farm Radar Public Inquiry Case Study

Case Study 19: Fallago Rig Wind Farm, Scotland

The planning application for 48 wind turbine project was opposed by the Ministry of Defence (MOD) due to potential impact on the Brizlee Wood Air Defence radar. Pager Power was commissioned to technical support, advice and expert evidence. Fallago Rig received planning consent in 2010, and has been operational since 2013. 


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View West Coast One South African Wind Farm Case Study

Case Study 18: West Coast One Wind Farm, South Africa

While in the planning stages concerns were raised, regarding the forty-seven turbine West Coast One development, by the South African Air Force (SAAF) over the potential impact on aviation.  Pager Power was instructed to carry out an assessment to model the potential technical impacts on radar, Instrument Landing Systems and Radio navigation beacons. The report was made available to SAAF. The military was able to remove it's objection to the wind farm, and the project has been commercially operational since June 2015.


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Wind Turbine 4G Interference

Case Study 17: Wind Turbine Development, England

Pager Power looked into a new wind turbine development in South Yorkshire when local residents complained of television (TV) reception interference. Following two Post-Construction Television Reception Surveys, it was still predicted that the wind turbines were unlikely to be the cause. After conducting a further Television Interference Investigation, Pager Power concluded that 4G signals were much more likely to be the cause of the TV reception interference. This finding removed the wind developer’s obligation to provide costly mitigation solutions, and potential future issues with the local planning authority.

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Major Building Scheme North West England

Case Study 16: Major Building Scheme, England

Pager Power completed a Television (TV) Impact Assessment and Post Construction Survey, for a building development that was blocking TV signals in an area of a nearby city. After determining that most of the complaints were genuine, mitigation measures were implemented. Pager Power's work enabled the developer to be confident in the limited area where the building was causing interference, and to manage complaints and publicity effectively going forwards.

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Glint and Glare Assessment, Case Study, Sowerby Lodge Solar Development

Case Study 15: Sowerby Lodge Solar Development, England

During the planning stages of the solar development in Cumbria, glint and glare concerns were raised from the nearby Walney Island Aerodrome. Pager Power was asked to carry out desk-based modelling of the potential effects and engage with the aerodrome. The concerns were subsequently resolved and the solar development received planning consent. 

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Wind Farm TV Reception Survey, Case Study, Burnfoot Hill Wind Farm

Case Study 14: Burnfoot Hill Wind Farm, Scotland

A television (TV) planning condition was imposed as part of the planning consent for the Burnfoot Hill Wind Farm in Scotland. To discharge the condition TV reception analysis and a baseline survey were required. Pager Power was commissioned to undertake a study regarding TV impacts in order to address any potential issues. The project has been operational since September 2010.

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Solar Glint and Glare Assessment, Case Study, Tate Modern London

Case Study 13: Tate Modern Rooftop Solar Array, England

The Tate Modern, in conjunction with Solarcentury, installed solar PV panels on the roof of the gallery under Permitted Development rights. In line with the guidance, the planning authority requested a Glint and Glare Assessment which Pager Power was subsequently commissioned to complete. Our assessment was accepted, and the rooftop solar array has been operational since late 2015.

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Solar Glint and Glare Assessment, Case Study, Republic of Ireland

Case Study 12: Coolroe Solar Energy Development, Republic of Ireland

Glint and Glare concerns were raised during the planning stages of the first large scale solar photovoltaic park in the Republic of Ireland. We were asked to undertake a Glint and Glare Assessment to address any potential issues. We also attended an oral hearing held by An Bord Pleanála to explain our investigation and answer questions put forward by local residents. Following the hearing, our results were part of the planning application which was consented in summer 2015.

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Solar Glint and Glare Assessment

Case Study 11: Burnham Wick Solar Farm, England

After consultation with a nearby airport, concerns were raised regarding the possibility of reflections from the proposed Burnham Wick Solar Farm affecting aircraft on an approach/departure path. We were commissioned to undertake a Glint and Glare Assessment. The development gained consent and is the first large utility-scale solar farm in the area approved by the local council. 

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Microwave Link Analysis and Survey Seychelles

Case Study 10: Port Victoria Wind Farm, Republic of Seychelles

Up against concerns over possible interference with microwave communication links, we assisted by undertaking a Desk Based Communications Links Report in addition to a Communications Link Survey. The Port Victoria Wind Farm is the first-large scale renewable energy project in the Republic of Seychelles. It gained consent and has been operational since June 2013. 

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Microwave Link Analysis Met Radar

Case Study 09: Westfield Wind Farm, Scotland

Facing concerns over the potential impacts on the meteorological radar, airport and nearby communication links, we assisted by undertaking technical analysis as well as attending meetings. Analysis consisted of a Briefing Note and Aviation Impact Assessment. Westfield Wind Farm gained consent in September 2011 and has been generating since March 2013. 
 

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Case Study 07: Hameldon Hill Extension, England

The Northern section of the proposed Halmeldon Hill extension was constrained by point-to-point communications links. As a result we carried out detailed radio communication assessments, in order to define stand-off distances. Having identified a suitable location, the extension layout was revised to accommodate three turbines instead of two.

 

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Case Study 06: Blackstone Edge Wind Farm, England

We identified that the Blackstone Edge development would be visible to a nearby Primary Surveillance Radar (PSR). Investigating further, a cumulative impact assessment was carried out on operational and consented wind farms in the nearby area. The cumulative study proved essential in constructing and implementing a mitigation technique. Blackstone Edge was consented. 
 

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MoD Radar Wind Farm Case Study

Case Study 05: New Albion Wind Farm, England

Virtually unobstructed; 30km from the Primary Surveillance Radar (PSR) at RAF Cottesmore to the proposed wind farm, there were potentially significant planning issues. This was later to be confirmed by the Ministry of Defence (MOD). Incorporating all factors into their line of sight model we were able to determine that the height of the radar relative to the turbines, combined with the distance, the earth’s curvature, and likely radar signal attenuation meant that radar detection would be marginal at worse. The MOD withdrew its concerns.
 

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Wind Turbines & Unmanned Aerial Systems (UAS)

Case Study 04: Pen Y Bryn Wind Turbine, Wales

We were involved in a wind turbine public inquiry in Wales regarding interference caused by wind turbines on Unmanned Aerial Vehicles (UAVs). Following the public inquiry the wind turbine was given the go ahead and is now operational. The appeal was quite unusual because the turbine was small and had already been built. Situated next to the runway at West Wales Airport where Unmanned Aerial Vehicles are tested, the turbine was also in range of MOD radar at their Aberporth test facility run by QinetiQ.
 

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Microwave Link Mitigation Case Study

Case Study 03: Wessex Water Avonmouth Wind Power Project, England

As part of the Environmental Impact Assessment we were commissioned as an independent consultant on both communication and aviation issues. Ofcom consultation and our analysis identified various communication links that constrained the development. It was identified that mitigation would be required to satisfy the relevant stakeholders.
 
 

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Offshore Radar Case Study Sheringham Shoal Wind Farm

Case Study 02: Sheringham Shoal Wind Farm, England

The proposal for 88 offshore turbines in an area where low flying military fast jets operate, not surprisingly, was the cause of some concern. The operator of Cromer secondary surveillance radar (SSR) objected on the grounds that there would be a technical impact on the radar, and the development was stopped. Using our custom built software, we were able to assess radar detectability and the shielding effect of the towers. We determined it highly unlikely that low flying aircraft would not be detected as a result of the wind farm. Wind farm and radar now safely coexist. 
 

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Pager Power Case Study 01 Whitelee Wind Farm

Case Study 01: Whitelee Wind Farm, Scotland

We facilitated enough power for almost every home in Glasgow, and an emission reduction of over 650,000 tons. Our challenge – to identify a radar location, from which none of the turbines would be seen, but aircraft using Glasgow airport would. Using customised software and researching an area of over 25,000 km, this case study shows our solution to a potentially development ending problem. The result - 322 MW of power.

View our video about this case study here.
 

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