6th January 2022

How airports can tackle their biggest lighting challenges in 2022

How airports can tackle their biggest lighting challenges in 2022

With passenger volumes continuing to make a steady recovery, many in the airport industry will be starting to look forward to what will hopefully be a better year ahead.

While it might not be at the very top of the priority list, apron lighting will undoubtedly be an area of focus for some. As sustainability initiatives become more widespread, and airports continue to look for ways to rebalance costs following a disruptive few years, a fresh approach to lighting offers the chance to make significant progress in both areas at once.

For those who do want to look again at their lighting, one of the first challenges they may face will be in ascertaining how effective their current setup is. The situation might be much better than it was 10 years ago, but many airports still don’t have a clear view of the quality of their existing lighting system. Surveys tend to be conducted relatively infrequently, and the complexity involved means that even when they are, the results don’t always provide an accurate reflection.

That’s a significant problem, because it leaves airports without a clear idea as to whether their lighting setup conforms with ICAO and EASA/FAA standards. Though that might not result in a fine, as it could in other sectors, it does mean that non-compliant stands will end up being limited to use during daylight hours only – something that can be hugely damaging in terms of operational efficiency.

A quick guide to apron lighting

One thing that may help here is Midstream’s own Photometric Measurement guide. It doesn’t avoid the need for airports to undergo a lighting audit, but this free document does provide a step-by-step process which they can follow to test their compliance.

Tackling the infrastructure gap

For those airports that do want to improve the quality of their apron lighting, retrofit solutions can be a cost-effective option. But these too can pose their own challenges, particularly when mast infrastructure hasn’t kept pace with expansion elsewhere.

At many airports, the original lighting masts will have been installed during the 1970s or 1980s. A few may have been added along the way, but usually at a slower rate than new stands. It’s therefore not uncommon for an airport that had three masts and five stands in 1980 to now have six masts split across 15 stands, for instance.

That kind of disparity makes compliance very difficult. New regulations state that every stand now requires lighting from two different directions, something that is mathematically impossible in a scenario like the one described above. Rome Fiumicino provides a great example of what is actually needed in a situation like this; a complete overhaul of the mast infrastructure, resulting in an incredibly well-lit airport and huge energy savings in the process.

While reducing the amount of energy used is obviously helpful from a budgetary perspective, innovations in mast technology can also have a major impact on cost. Midstream’s Modus R1000, for instance, utilises a lightweight luminaire and a series of high-performance, asymmetric optic lenses. This, combined with a remote driver configuration, means that the height of the mast can be vastly reduced – resulting in a cost saving of around 70% over traditional models.

Time to act?

While passenger volumes have shown a strong recovery over recent months, they remain low in comparison to pre-pandemic years. As a result, it can be tempting to assume that apron lighting is something that airports can push further down the to-do list. For those who want to improve their bottom line, however, that isn’t really the case.

In our own experiences, many of the airports that have invested in a new lighting system over the past two years have saved a considerable amount of energy by doing so. While airports locked into old sodium-based systems have needed to leave apron lighting running no matter how many flights are departing, those with LED solutions have been able to power them on and off as needed. With the maintenance costs on those old systems also continuing to increase, waiting for business as usual to resume can actually be a false economy.

The payback time on new systems is also getting shorter by the day. Whether it’s a retrofit solution or a completely new installation, an LED lighting system typically starts to deliver a return on investment within two to five years. Even making the switch from first-generation (c. 2011) LED floodlights to next generation ones can offer significant savings.

The main priority, of course, is to get the advice of a company that specialises in the very specific requirements of modern apron lighting. As well as manufacturing our own series of award-winning aviation floodlight solutions, Midstream also offers a complimentary design and consultancy service covering everything from light levels to wingtip clearance.

See more of our Recent Blogs

Why Are LED Floodlights More Efficient

Find out what goes on under the hood that makes LEDs so energy efficient: read our new blog now

The impact of floodlighting on wildlife

What do you need to know about LED lighting?

Can I swap out my old floodlight bulbs for LEDs?

Jan 3, 2022

Understanding windage

When it comes to designing industrial lighting solutions, windage is something you ignore at your peril. So, we’ve asked our mechanical engineering guru, Andrea Peratello, to explain what it means and why it’s so important.

What is Windage?

Windage can mean different things to different people. In ballistics, for example, it’s the adjustment that needs to be made to keep a missile on target after taking the wind into account.

However, in our industry, we need to consider its engineering definition. This is where windage refers to the area or shape of an object that makes it susceptible to pressure.

Let me put that into an everyday, easy to understand context. If you’re walking down the road on a windy day you get pushed by the pressure of the wind. That pressure pushing you is called drag or drag force.

If you’re walking head on into a constant wind, you’ll find it harder to walk than if you were walking sideways into it – because the drag is greater. The wind speed is the same, it’s just the amount of your body you’re exposing it to – the windage – that’s changed. And if the wind speed and/or your windage goes up – the drag force goes up and you get blown over.

Why is it important and when does it need to be considered?

When you’re building something, like a large mast holding lots of lights, you want it to stay where it is – not sway around or even worse topple over. This explains why engineers have to think carefully about windage when they’re building something. They also need to take into consideration other things that can add to this drag force e.g. the weight and positioning of the mast and lights.

How do you calculate windage?

In general terms, engineers are less concerned with calculating windage itself – but more with the drag force it can contribute towards. It’s this drag force that can cause damage.

Drag force is easily calculated with this formula:

DRAG= ½ X V2 X ρ X EPA

Where:
V – is the air velocity.
ρ – is the air density.
EPA – is the Effective Projected Area.

And EPA is calculated with this formula:

EPA = Cd X FPA

What’s the difference between EPA and FPA?

Let me try to put this into everyday terms again. Imagine an oblong box with different dimensions on each side. The top, front, and end of the brick each have a different surface area, which is effectively the FPA for that side. And the greater the FPA, the greater the drag. That’s why we need to consider the largest FPA of an object as our worst-case scenario in any calculations we make.

However, we need to consider an object’s aerodynamics also to calculate it’s EPA.

Now imagine a ball and a cylinder of the same diameter. If the wind were blowing directly on the ball and the end of the cylinder, they’d have the same FPA. But because the ball is more aerodynamic the drag force against it is less than the cylinder and it has a lower EPA. That’s why we need to use an object’s drag coefficient and its FPA to get to its EPA, so we can calculate the actual drag.

So, floodlight manufacturers usually characterise the aerodynamics of their products with the maximum EPA value under the Windage tag of the datasheet as a worst-case scenario.

Andrea Peratello, Head of Engineering, Midstream Lighting.

A mechanical engineer, production manager, project leader, and inventor Andrea’s career has been broad and varied. He’s worked in the chemical, mechanical, and electromechanical sectors – where he’s been responsible for the design of products and production equipment.

Andrea holds a Master’s Degree in Mechanical Engineering from the Politecnico di Torino.

With over 10 years of experience in LED lighting design and delivery, Andrea has boosted the development of all Midstream products inside our Engineering and R&D teams. He’s also responsible for overseeing the product manufacturing process of all our products.

16th December 2021

Lighting up the world’s ports – a year in review

During my first year as Midstream’s Maritime Manager, there has been a major shift in how port and terminal operators are reviewing their operations. The drivers? Put simply, this is down to tackling two significant challenges – improving both sustainability and resilience. The net result is a growing demand for energy efficient, robust and high-quality lighting.

While the primary reasons for investing in lighting are still focused on providing safe and efficient operations, over the last 12 months, improving the sustainability and resilience of operations are starting to come to the fore. And, this isn’t going to go away any time soon.

Developing a brighter, sustainable future

As seen at COP26, every element of our global supply chain is being scrutinised, with the pressure to decarbonise also becoming more multifaceted from across consumer, commercial and political groups. Aside from this, there is a greater acceptance on a personal level that it’s simply the right thing to do to protect our planet. Everyone is under the spotlight and with lighting accounting for around 5% of global emissions, it is one area where we are seeing greater re-evaluation.

The relationship between high performing LED lighting and sustainability is something that Midstream has been advocating for some time and it’s an area that our team is particularly passionate about. Through working in partnership with customers to slash energy output (for example, improving energy efficiency by up to 70%) and thereby tangibly reduce carbon emissions whilst ensuring the best quality lighting provision, we can make a significant contribution to improving the environmental performance of ports and terminals. As a fundamental part of the global supply chain, the decarbonisation of ports and terminals, will in some way impact us all.

Supply chain shocks – the port and terminal sector’s ‘new normal’

In parallel, owners, operators, shippers and governments, are looking to find new ways to manage record breaking congestion in ports and terminals. The disruption has caused huge economic ripple effects and whilst most of the congestion has been caused by issues further up the supply chain, it has also highlighted the need for ports to find ways to provide the efficiency and resilience required to manage these ‘shocks’. Especially with congestion forecasted to become more frequent and severe. Alongside this, owners and operators are facing a juggling act to drive efficiency measures, such as managing just in time operations, that can potentially compromise resilience without the necessary support in place.

We are seeing steps to address this, for example, UN agency UNCTAD launched a course to build port resilience against pandemics, while President Biden recently announced a set of steps to speed up investment across US ports, waterways and freight networks as part of a $1.2trn bipartisan infrastructure bill. Measures laid out by the US government include grants for new construction projects and port infrastructure. However, whilst such initiatives are encouraging, not only do such government incentives need to be more widespread and carefully targeted, but the success will be realised by the implementation.

A new outlook for lighting

The new global challenges are bringing about fresh opportunities for those who can find the right solutions. At Midstream we are pleased to be having more conversations with companies who are shedding legacy approaches and looking to innovate to shape a better future. We look forward to having even more of those discussions during 2022.

To summarise the last 12 months, 2021 has been the year that port lighting has started to be seen as an increasingly strategic tool. In 2022 we predict that LED lighting will continue to have a bigger impact on helping to fulfill the ambitions of more sustainable and resilient ports.

Mark Nailer, Maritime Manager EMEA - Midstream Lighting
Mark Nailer, EMEA Maritime Manager at Midstream Lighting

An experienced Sales and Marketing professional, Mark has an extensive maritime background, both in the UK and internationally, covering over 11 years. With a wide-ranging background in Network Partner Management, Mark is also responsible for helping all Midstream Partners across EMEA achieve their business goals.

See more of our Recent Blogs

Why Are LED Floodlights More Efficient

Find out what goes on under the hood that makes LEDs so energy efficient: read our new blog now

Why high-quality LED lighting is the secret to lower costs at ports

The impact of floodlighting on wildlife

What do you need to know about LED lighting?

10th December 2021

The advantages of LED Floodlighting in Sports

We spoke to our UK Sales Manager, Patrick Daly, about the advantages of using LED floodlighting in Sports compared to older outdated systems like metal-halide lighting or sodium-vapour lamps.

LED Lighting is more energy efficient and helps facilities cut costs:

With older lighting systems, such as metal-halide or sodium-vapor lamps, the majority of the energy used isn’t converted to ‘useful light’. Some of the energy used to power the light is converted to heat and some of the light you don’t even see. Metal-halide lamps throw out light in all directions. This adds to their inefficiency. Most of the light they produce doesn’t go to where it’s needed without reflectors to guide it, and these reflectors aren’t nearly as efficient as the optical systems, such as lenses, used in LEDs. So, straightaway with metal-halides you’re looking at a light loss of 20% to 50%.

When you put this into a sporting context, where the lighting makes up a very significant part of a venue’s overall energy bill, the savings to be made are huge. These savings can be as much as 70-80% when comparing LED to metal-halide lighting.

Metal-halide lighting also degrades at a far greater rate compared to LED floodlighting. After around six months over 20% of a metal-halide bulb’s lumen output will be lost as it degrades, and they only have a life span of around 3-5 years. It will still be consuming the same amount of energy, meaning it’s getting more and more inefficient and you’re getting less actual light for that energy.

A well-built LED will achieve around 110 to 130 lumen per watt. Whereas with metal-halides, after taking optical losses into consideration, you’re looking at only 70 lumen per watt. That’s going to cost you twice the installed power to achieve the same lighting levels.

Using LED lighting has helped many sports venues cut maintenance costs:

LED lighting lasts far longer than traditional lighting – at least four to five times as long because of the rapid speed at which metal-halides and other older lights degrade.

Because of their ‘solid-state’ construction, LEDs are more robust too. They’re not compromised in the same way metal-halides are by things like vibrations on masts. They cope far better with other environmental factors, such as rain and heat. As you can imagine cold water hitting an extremely hot bulb is not a good thing – especially if it happens during an event. More reasons why LED lights last longer.

With LEDs, you won’t need to pay for someone to come out as much to change the luminaires.

LED lighting has superior light quality compared to older systems:

Whether you’re watching an event live or on TV you expect and need everything to be crystal clear. LED lighting will give you that clarity from day one and every day after that. This isn’t so true of traditional lighting. With sodium-vapour lamps for example, the colour rendering index will probably be fine to start with, but it starts to change quickly.

When a metal-halide light fails it can cause problems with light uniformity across the field of play too. This can lead to problems with meeting a sports regulatory lighting requirement.

LED lighting also means broadcasted events are 100% ‘flicker-free’. This isn’t so achievable with traditional lighting.

You have more control with LEDs:

LED floodlighting turns on and off at the flick of a switch. This isn’t true of traditional lighting that can take around 15 minutes to reach full brightness. That warm-up time, or expensive restrikes, needs to be factored into when a competition takes place – and obviously it uses up energy and ramps up bills.

Dimming LED floodlights is a big benefit over traditional lighting. For example, you could light a pitch or indoor stadium to just 50% before an event begins and during any breaks and only go to full power when play takes place. Training sessions can be run without the need to have your lighting on full and still maintain the same level of uniformity overall. To do this with metal halides you’d need to turn off different lamps which can cause uniformity issues. You can introduce a level of dimming control with standard lighting – but only by investing in very expensive voltage regulators. But you’ll also need to pay for and install a separate power line so your lighting can be dimmed independently of any other systems.

LED lighting helps you minimise your environmental impact:

Being greener is rapidly moving up the agenda for everyone: players, spectators, sponsors, and is something all sporting venues need to be aware of. This is another area where LED sports floodlighting outshines traditional lighting.

Their reduced energy needs, and control functions mean less CO2 is released into the atmosphere.

When they eventually come to the end of their lifespan, LEDs are fully recyclable and contribute to the circular economy. They don’t contain any toxic, environmentally damaging materials that you’ll find in other forms of lighting either.

At a local level LEDs can prove more environmentally friendly for your neighbours too. If you’ve ever walked past a large sports stadium, you’ll understand why – light spill. Even with reflectors to try to aim light where it’s needed, old lighting systems still send a huge amount of bright light all around. LEDs keep light where it’s needed – in the venue.

Here are just a few examples of the benefits of LED floodlighting in sports and how they make your facility shine brighter:

  • In the case of everyday sporting venues subject to daily use, reliability and cost are paramount in delivering efficient, economic, and reliable long-term lighting solutions.
  • Professional and high-level sports stadiums need the very best LED technology and sophisticated lighting solutions. After all, when you’re watching any great event – live or on TV – it must be crystal clear.
  • For aqua centres, leisure pools, indoor and outdoor training pools a different set of challenges can arise due to their demanding atmospheric conditions. These facilities need lighting that’s high-quality, trouble-free, waterproof, and long-lasting. It also needs to be robust enough to withstand both humidity and the potentially corrosive effects of chlorinated water.
  • Golf driving ranges are frequently a key supplementary source of income for many golf clubs. Effective, low-cost, and low-maintenance lighting is essential to maximising the ranges’ availability to customers and the club’s revenue.
  • Show jumping, evening race meets, gymkhanas, dressage, and many other equestrian disciplines demand artificial LED lighting solutions that give them more time for hosting events and training. This helps them be more flexible when it comes to scheduling and helps increase their revenue too.
  • Ice rinks and indoor arenas require high quality lighting that emits the least heat and can deliver high definition and colour rendering. With no natural light, lighting is used during the day as well as the evenings and the light spectrum must remain stable throughout the lifetime of the luminaire.
  • Motor Sports events continue to evolve with many organisations running night races on a more frequent basis. Only the best LED lighting technology can be used for these challenging sporting spectacles. With the safety of drivers being paramount, glare must be eliminated completely, whilst the entire track must be perfectly lit. Add in TV audiences around the globe and only the most advanced and experienced solution will do.

Patrick Daly, UK Sales Manager at Midstream Lighting.

Got any questions for Patrick or want to know more about LED Lighting fill in your details below
More of our sports blogs you may like.

When it comes to finding football floodlight funding – leave it to the experts

Football floodlighting funding – This short blog is essential reading if you’re looking for help with your floodlight funding.

Football Pitch Lighting: England, Scotland, Wales, and UEFA

Depending on where a club is based and what level it plays at the rules governing the quality of pitch lighting needed can vary greatly.

The Football Association (FA) has its own rules. As do the Scottish Football Association (SFA), and the Football Association of Wales (FAW). And all clubs in each of these associations playing at a premier level are governed by the Union of European Associations (UEFA) regulations.

The Midstream Lighting & England Athletics Floodlighting Guide

We’ve created a new, comprehensive Athletics Floodlighting Guide. It’s aimed at athletic club and their facilities managers and will help them understand more about the seemingly complex and daunting world of lighting.

The importance of partnerships for England Hockey

We’ve been working with GB & England Hockey as their Official Lighting Partner for five months now. So, we’ve asked Rich Beer, Development Director at England Hockey, to tell us more about the role partnerships play in the development of hockey in England.

5th December 2021

The effective use of crane lighting: it’s what hits the ground that matters

Just yesterday I saw another tender calling for 40,000 lumen crane lights. Here’s why there are better ways to perceive lighting capabilities:

While the tender asked for floodlights in terms of their lumen output only, it failed to request the Lux level on the ground, which is the most important parameter for practical use, as well as the only relevant value requested by safety normative.

This is despite it being the light that reaches the ground, the containers, the people, that creates a safe working environment. Lumen is a measure of the output of the light, while Lux level is what’s actually reaching the operational area, and it only partially relates to lumen output.

Specifying a particular lumen output, in this case 40,000lm does not guarantee any Lux level on the ground as it doesn’t take into consideration the quality and efficiency of light distribution.

You can have a 40,000 lumen floodlight with inefficient lenses, resulting in a much lower lux level on the target area compared to a 35,000 lumen floodlight from Midstream that uses optimal distribution specifically developed for this application. Such comparison has been proven in the past in numerous trials.

So, don’t be misled by the appeal of a “bigger is better” approach to lighting. The ultimate goal is to maximise efficiency, using the least amount of power, and therefore lumens, to reach the only metric that actually matters, which is visibility, in the form of Lux level and uniformity.

At the end of the day, safety is too important, and if an accident occurs as a result of poor lighting, it won’t matter where the responsibility for missing the crucial distinction between lumen and Lux rests.

Lux v lumen

Taking all this into consideration, lumen levels are only helpful when also considering Lux levels. The output of the floodlight will mean nothing if you fail to consider its performance once it hits the ground. Similarly, uniformity is also a vital metric that is often overlooked when considering safe and effective lighting. Uniformity, in this instance, refers to how evenly the lighting is distributed once it reaches the ground.

What we often see when assessing existing lighting infrastructures are cases of unequal lighting distribution, with bright spots that raise the average of Lux level measurements on the ground, hiding the presence of dimmer areas – and therefore failing to illuminate potential safety risks. This disparity in Lux levels is often caused by poor quality lighting equipment.

With no International Maritime Organization (IMO) standards currently in place for Lux levels on cranes used within ports or terminals, we endeavour to guide the industry and tailor our solutions to be effective and durable.

While safety is one of the primary focuses when considering lighting, it is important that it also delivers good value for money. For example, LED lights often have a 10-year lifecycle, but on a terminal crane, some can be rusted or rattled to pieces within a year due to the volatile and highly saline conditions.

This is why Midstream products are built using marine-grade steel, ensuring they are light-weight and engineered to avoid early failure. We conduct vibration tests to 100,000 cycles and salt water immersion tests for 1,000 hours. We have inbuilt moisture and particulate protection and bespoke bracketry. All this should boost the operational lifecycle beyond 10 years – we estimate up to 15 years – but could even go beyond this.

The plug-and-play design means they are easy to install. Downtime is minimised which is a huge benefit for port performance especially when you are dealing with pandemic-related backlogs.

So, why are so many ports and terminals tendering for crane lighting at this time? Improved lighting enables crane operators to work faster and smarter. It improves visual definition of, for example, the alignment of the spreader with container when engaging twistlocks. In more automated environments, cranes also need this improved visual definition to interpret symbols and barcodes correctly.

Safety and efficiency are obvious motivating factors for upgrading lighting systems, but COP26 is another: Around 1% of the world’s carbon emissions come from lighting. That may not sound like much, but it is significant, and as other industries reduce their emissions to meet 2050 targets, it will become more so. Upgrading heritage systems to quality LED lighting can reduce energy consumption by over 70%.

Ultimately, we understand that operators need cranes to operate efficiently. They need lighting that keeps people and cargo safe whilst improving environmental performance – all with a favourable total cost of ownership.

My final words of advice would therefore be:

  • Be clear on what you want to achieve and work with a solution provider who genuinely understands your objectives from a technical perspective.
  • Don’t sacrifice tomorrow for a few hours today. You don’t have to do an upgrade all in one go, and it often makes better sense to break your goals down into multiple steps.
  • Do the maths. Look at your energy savings versus the cost of the project, and you will find a great avenue for building further on your business plans.

With Midstream, lighting is about collaboration and quality. Your objectives are our objectives, and we will work to provide the most efficient, reliable and cost-effective solutions possible to ensure the safety of your workers and the highest ROI.

More of our Maritime blogs you may like.

Aug 4th, 2021

Top 5 tips to optimise your port and terminal lighting

High performing lighting is fundamental to ensuring safe and secure operations at ports and terminals around the world, with the continuation of global trade relying on robust and resilient systems. Despite this, many ports and terminals still use inadequate and poor performing lighting solutions, such as high-pressure sodium, metal halide, or other similarly dated technologies.

We spoke with our Global Sales Manager, Maritime, Rory McBride, to find out his top 5 tips for owners and operators looking to evaluate and optimise the performance of their lighting to secure cost, safety and sustainability benefits.

1. Check your energy output

The first step to optimising your lighting system is to assess its energy consumption against its performance. With many ports and terminals requiring huge lighting infrastructures, and as a necessary annual expense, lighting should be evaluated every six months for its energy efficiency. At present, most owners and operators aren’t aware of the benefits of having regular audit procedures in place. This can lead to poor performing, energy-sapping solutions being routinely applied. When operators do look at performance more closely, the savings can be tangible. For example, upgrading outdated lighting solutions to high quality LED lighting can reduce energy consumption as much as 70%, saving important costs and carbon emissions. Because the individual costs of maintaining each light in an antiquated system are low, they often go unnoticed. This is a common trend in ports, a focus on the ‘big ticket’ items, and why routine audits of best practices is a critical component to a successful operations.

2. Prevent time intensive and costly maintenance

Are you constantly having to replace broken bulbs?

Although initially cheaper, high-pressure sodium, metal halide, or other similarly dated technologies, lack durability or quality – lasting one to two years at most. The maintenance required to continuously replace broken fixtures resulting in unnecessary costs.

For example, while a replacement bulb may initially be the cheaper option ($20-50 per bulb) the labour required to repeatedly replace broken lighting, cost of new fixtures and the avoidable safety risk, means in the long term, it is cost ineffective.

As many ports and terminals do not have a process in place to cohesively track and report maintenance on lighting, or the replacement of singular bulbs, the cost of replacing hundreds of lights can often go unnoticed.

With solutions like LED lighting lasting for a minimum of ten years, assessing the entire product lifecycle is key to increasing safety standards and reducing avoidable maintenance costs.

3. Review the design of your bulbs

The size and design of a lightbulb directly impacts the security of a port or terminal and the safety of workers. Outdated lighting solutions, and even inadequately designed LED lighting, can increase glare, reduce visibility and cause eye strain and fatigue for workers. Bulbs that are designed to effectively funnel light can dramatically reduce glare and increase colour recognition – an element that is also important in enhancing other technologies, such as CCTV systems, for example.

Traditional light bulbs are orb-shaped, meaning that light is emitted from every possible direction. So if you can see the light bulb, then its shining back at your eyes, creating glare. The proprietary optics Midstream Lighting utilizes channels the light to the specifically designated area, dramatically reducing glare perceived from outside the lighted area

4. Work smartly with sophisticated control systems

Investing in a sophisticated control system to automate lighting is fundamental for those looking to reduce energy consumption, increase efficiencies and subsequently save costs.

Control systems can allow you to better define the level of power output, notify workers when a light goes out and create zones to ensure lighting is only on in specific areas of the port or terminal when required.

Similarly, the data from such systems can be utilised to further optimise operations. The greater potential for data amalgamation and analysis enabling owners and operators to identify where further efficiency gains can be made. Through working smartly, owners and operators are not only able to reduce costs through optimising daily operations but increase the efficiency of infrastructure in the longer term.

5. Evaluate if your lighting fulfils its purpose

Lighting is purchased with the primary purpose of creating a safe operating environment. However, following installation, many owners and operators fail to check the performance of their lighting on a regular basis. In fact, around 90% of ports and terminals are not carrying out routine checks – resulting in inadequate lighting that reduces visibility and increases the risk of accidents and occurrence of crime.

It is therefore vital that safety is central to the evaluation of performance, optimisation and upkeep. It should after all not take a major accident, and huge insurance claim, for lighting to be upgraded.

Rory McBride, US Maritime Manager at Midstream Lighting

Rory brings to Midstream a decade of experience earned in the maritime industry for companies all over the world. This has allowed him to get involved in key lighting projects for some of the largest ports worldwide. Having been exposed to countless types of operations, Rory’s background empowers him to meet all Midstream maritime clients exactly where they are and provide the deepest level of consultancy and precision problem-solving.

Want to know more? Get in touch.

See more of our Recent Blogs

June 15th, 2021

Why port and terminal owners must invest in energy-saving lighting solutions now

Have you ever tried to load a ship in the dark?

That is one of the first questions we pose to port and terminal owners and operators asking how important investing in lighting is. A fundamental yet often overlooked asset, lighting underpins the safety, security and continuation of operations. Taking this into consideration, and despite it being a significant annual expense, economically and environmentally adverse lighting solutions, such as high-pressure sodium, and metal halide, remain the predominant solutions in ports and terminals across the world.

The reason for this often being a lack of awareness by owners and operators of the significant and easily accessible efficiency gains that upgrading lighting solutions can incur.

However, the argument for investing in energy-saving lighting solutions is two-fold. Firstly, with lighting accounting for nearly 5% of global CO2 emissions, with a proportion of these existing within logistics operations, lighting must be factored into port and terminal decarbonisation strategies. While there is currently no set regulation for the energy efficiency of lighting, European environmental initiatives such as EcoPort, which comprises of 102 different members from 25 nations, highlight energy efficiency in the top three environmental concerns for ports in its 2019 and 2020 report.

Upgrading outdated lighting solutions to LED lighting can result in over a 70% reduction in energy consumption. Owners and operators can therefore massively increase the energy efficiency of their maritime hubs, and as a result generate fewer CO2 emissions, by re-evaluating one of their most important assets. Likewise, LED light bulbs last up to 20 times longer than standard forms of lighting, in turn, reducing waste.

A prime example of a port successfully including lighting in its decarbonisation strategy is the Port of Tyne. With an investment in LED lighting, alongside a suite of other proven energy-saving solutions targeted in it its clean energy plan. The investment in a range of energy saving technologies saw the port win two clean energy awards at the Maritime UK 2020 Awards. The port also cut its carbon emissions by 700 tonnes in 12 months, with LED lighting highlighted as fundamental in achieving this.

Secondly, significantly increasing energy efficiency significantly reduces cost. While the initial cost of traditional lighting solutions can be higher, and an initial deterrent for some owners and operators looking to invest, LED lighting is undoubtedly the most cost-effective solution. Its durability, and the energy efficiency savings it realises, meaning that the technology pays for itself over a very short period of time. .

Not only this, but as an enabler technology, LED lighting can pave the way for performance gains in other areas of port operations, such as safety, security, and operational performance. For example, LED lighting delivers greater visibility when compared to other lighting solutions, increasing light levels by up to and above 50%. This in turn can increase the performance of CCTV systems and safety of vessel loading equipment – capitalising on existing assets.

The answer as to why port and terminal owners must invest in energy-saving lighting solutions boils down to reducing OPEX, supercharging operations, and increasing energy efficiency. As the maritime industry, and wider society, seeks to reduce GHG emissions in line with the energy transition, every element within the supply chain must be scrutinized. And lighting is an incredibly fundamental element.

Mark Nailer, Maritime Manager EMEA - Midstream Lighting
Mark Nailer, EMEA Maritime Manager at Midstream Lighting

An experienced Sales and Marketing professional, Mark has an extensive maritime background, both in the UK and internationally, covering over 11 years.

Mark’s a strong networker, with a track record of building lasting relationships. His role here at Midstream is, with our in-house lighting design and engineering teams, to help prospects and customers achieve and maintain the perfect lighting solutions for their operations.

With a wide-ranging background in Network Partner Management, Mark is also responsible for helping all Midstream Partners across EMEA achieve their business goals.

See more of our Recent Blogs

January 19th, 2021

Yellow light vs white light in fog

One general view about yellow vs white light in fog is based on the theory that scattering, by anything at all, is always greater at the short-wavelength end of the visible spectrum than at the long end. It must be true because the nineteenth-century British scientist Lord Rayleigh showed this in his paper of 1871 on the dispersion of electromagnetic radiation. This explained, amongst other things, why the sky is blue. This is because when the pure white light from the sun passes through the gases and extremely small particles in the atmosphere it’s scattered. Blue, and violet, light is dispersed the most because they travel as much shorter waves. So, the sky looks blue.

You’d assume therefore to get the greatest penetration of light through fog, you should use the longest wavelength possible. Red, being the longest, is obviously unsuitable however because it is used for traffic stoplights. So, you compromise and use yellow light instead.

This view is flawed though when it comes to light penetrating through fog. Rayleigh scattering – as it’s known – applies only to ‘scattering’ particles that are smaller than the wavelength of light and at wavelengths far from absorption. Fog droplets are huge compared with the wavelengths of visible light. This means that the scattering of light by fog is essentially wavelength independent. See Reference Articles 1 below.

We don’t need to consult scientific papers to understand this is true though. Just look at cars on the road at night. Designers of vehicle headlights have known for a long time that there is no magic colour that gives greater fog penetration. That’s why most headlights are white and why, for example, EU regulations require all new vehicles to have white lights. See Reference Articles 2 below.

So, for light penetration and perception in fog, the colour of light is unimportant. Yellow light. White light. There’s no difference.

Reference Articles 1

Bohren C. F, & Fraser A. (1985) – Colours of the Sky in The Physics Teacher pp 267-272. And Bohren, C. F. & Huffman, D. R. (1998) – Particles Small Compared with the Wavelength, in Absorption and Scattering of Light by Small Particles, Wiley-VCH Verlag GmbH, Weinheim, Germany.

Reference Articles 2

Nelson, J.H. (1938) – Optics of headlights in The Journal of Scientific Instruments Vol. XV, pp. 317-322. Also see the more recent Schreuder, D. A. (1976) – White or yellow light for vehicle head-lamps? In the Dutch Institute for Road Safety Research SWOV.

Commercial Director & Co-Founder

As an entrepreneur, Yuli has worked across sectors as diverse as Finance, Oil & Gas, Music, Real Estate and Electronics. His passion in business is challenging the status quo, disrupting markets, building first-class teams, and solving complex challenges with creative solutions.

Yuli trained in Finance and Economics in London, with postgraduate studies in Law (LLM) and Engineering (MEng) in Scotland and Australia. He’s also been appointed as an Export Champion by the UK Government’s Department of International Trade.

Recent Blog Posts

December 10th, 2020

Thinking Metal Halide? Think again, again, again, and again…

There are quite a few ‘cheap’ deals on the market for Metal Halide lighting at the moment. If you’re being tempted by them, we’d really recommend you think again.

You might be saying to yourself, ‘Midstream are world-leading pioneers in LED. So, they would say that. They’re biased.’ We are. But only because of the facts. Let’s explain just a few reasons why – without blinding you with any science because that’s not our way.

Energy savings

We won’t dwell on this one too much. Let’s face it though, LED lighting has been proved time after time to cut energy use – massively. In fact, you can make savings of 50% or sometimes even more.

Maintenance

Again, another area where LEDs have been shown to beat Metal Halides hands down.

Metal Halide lamps degrade much, much faster than LEDs. So they often need replacing, even before a lamp has failed totally. That’s not all. Because of the way they’re built, Metal Halide lamps can’t cope well over time with things like vibrations on cranes and high masts. This can lead to components breaking and the lamps dying. Not a problem at all with solid-state LED systems.

What does this all mean for you? You’ll have to pay several hundred Euros for each new lamp you need. You’ll also need to pay for someone to replace them. You might need to get in specialist equipment too like cherry pickers to reach them – yet another big cost. And we’ve not even mentioned yet the problems and costs caused by downtime, or an immediate failure, you could incur.

Efficiency and efficacy

At the start of its life, a Metal Halide lamp can deliver a high lumen output. Obviously, this lumen output is related to efficiency. However, give it six months or so and 20% of that lumen output will be lost as the bulb degrades. It’ll still be consuming the same amount of energy though, meaning it’s getting more and more inefficient. And by the time it’s reached its half lifetime it’ll need replacing because it won’t deliver the quantity and quality of light needed.

The way Metal Halides cast their light, compared to LEDs, can lead to further inefficiencies. Metal Halides throw light in all directions and to focus it on a target they need reflectors. These reflectors aren’t nearly as efficient as the optical systems, such as lenses, used in LEDs. So, straightaway with Metal Halides you’re looking at an effective light loss of 20 to 50% depending on the photometrics you want to achieve.

Just remember too… A well-built LED will achieve around 110 to 130 lumen per watt. Whereas with Metal Halides, after taking optical losses into consideration, you’re looking at only 70 lumen per watt. That’s costing you twice the installed power to achieve the same lighting levels! What’s there to think about?

Light quality and CRI

All the light emitted from LEDs is in the visible spectrum. But when it comes to Metal Halide lamps, as well as visible light, they emit both infrared (IR) and ultraviolet (UV) light. The IR emitted is one of the reasons Metal Halides are so inefficient compared to LEDs as you’re wasting energy on heat. The UV light emitted doesn’t waste much energy. Too much exposure to it in a confined space could cause skin damage and health issues, however.

Metal Halides don’t fare well compared to LEDs when it comes to their colour deviation and Colour Rendering Index (CRI) values. With a well built LED system both colour deviation and CRI changes don’t really come into play. As Metal Halide lamps age though, you’ll get colour deviation, and the CRI value won’t be stable. In fact, with Metal Halides you can only be sure of the CRI when it’s very first installed – it starts to change very soon after.

Controls

LEDs can be turned on and off thousands of times a second with no impact on lifetime or performance. Which makes them perfect for things like light shows in places like large sporting venues. It also means they can be used with controls such as motion sensors to dim or turn them on and off instantly when required – helping save money lighting areas when they’re not needed.

Because they’re electromechanical Metal Halide lamps need time to reach full power. And when they’re turned off, you’ll need to wait fifteen minutes or more for them to cool and restart before they can reach full power again. So in terms of controls, the best you can do is dim them with voltage regulators – which are very expensive. You’ll also have to invest in having a separate power line for them so they can be dimmed independently of any other systems.

So why are Metal Halide systems going cheap?

We’re not going to ‘pull any punches’ here. Basically, because of all the reasons above, the Metal Halide era is coming to or has already reached its end. And to clear their stocks, manufacturers are cutting their prices. An added issue that’s starting to emerge is that once those stocks are cleared, finding replacement parts is going to become impossible.

Paolo Corno, Technical Director & Co-Founder, Midstream Lighting

With over ten years of LED lighting industry experience, Paolo is an invaluable and highly regarded member of our core leadership team.
Coming on board as one of the company’s co-founders in 2013, Paolo’s responsible for overseeing our Lighting Design, Engineering, and R&D Teams. He personally leads the design and development of Midstream’s comprehensive product portfolio – including the Atlas, Titan and Modus Floodlight Series – which are installed in over 85 airports globally.

An experienced designer, who holds a degree from Bocconi University in Milan, Paolo has led the design of over 100 LED lighting solutions in the aviation, maritime, sports and horticultural markets. ensuring that all national, local, industry and customer requirements are met.

Recent Blogs

November 17th, 2020

Understanding colour shift… made easy

If you trawl the internet for ‘colour shift’ you’ll come up with hundreds of results. The problem is though, whilst they’re all talking about the same thing, they often approach it from different angles. In most cases, you’ll need a Ph.D. in Physics to understand what they’re saying too.

So, in true Midstream style, we’re going to keep this really simple. And if you’ve got any questions, or want to learn more, no problem. Just contact us.

What is colour shift?

Colour shift is a deviation from the originally selected colour which happens on the LED chip. Generally, this shift usually goes to the blue end of the spectrum – so you lose the spectrum outside of the blue emissions. However, this deviation can affect green and red emissions too. Different chips will deviate to a different colour depending on the characteristics of the phosphorus used in the LED chip.

Perhaps the easiest way to think of colour shift is that it’s effectively lumen depreciation in specific parts of the LED’s colour spectrum.

Why does it happen?

Colour shift can happen for a number of reasons.

One of the most common is caused by defects in the chip during the production of the LED. Another reason is due to a problem with the application of the chip’s phosphors coating. This coating converts the invisible, pure UV emissions into visible light and can change its characteristics over its lifetime.

The biggest cause though is nothing to do with the chip itself but is due to its misuse by the luminaire manufacturer. This can be because:

  • They’ve mounted the chip on the board incorrectly.
  • They’re driving the LED too hard beyond its effective design parameters.
  • Or, because of luminaire design issues, it isn’t being cooled sufficiently.
How do you recognise it?

Easily. You can see it with the human eye and measure it with the right equipment, such as a spectroradiometer. The extent to which you can recognise it – by sight or measurement – depends on how bad the colour shift is. This in turn can depend on how poor the product quality is, or how much the chip is being overheated. Either way, a rapid colour shift will usually result in the complete failure of the LED board in a very short time.

How can you prevent it?

A good place to start is chip selection. Using the right chip for the required application will help stop any colour shift. So, when you choose this crucial part of your luminaire you need to assess its lifetime depreciation by looking at its LM80 data. This will give you a good guide as to how a chip will age. You can find out more about LM80 here.

Also, make sure the PCB board manufacture has good quality assurance systems in place and follows the chip manufacturer’s mounting instructions to the letter.

The best way to prevent it however is by putting extra care into the heat management of the luminaire. A well cooled, quality LED, even if it’s being driven by high currents, will rarely suffer from colour shift. This is why when we’re developing a new product, we always put heat management at the top of our key considerations – unlike some companies we won’t mention.

How does it differ from lumen depreciation?

General lumen depreciation is where the total light emission decreases across the whole spectrum. And, as we’ve already said, colour shift is in a way is lumen depreciation that happens more in certain parts of the spectrum. For example, a shift to blue just means you’re losing more flux from the rest of the spectrum and not an increase in the blue area.

Does it affect all the luminaires in the same location in the same way?

It depends on the cause of the shift. If it’s due to a production defect, the luminaires may be affected in different ways in the same location.

If it’s a result of poor heat management or poor chip choice, then all the luminaires in the same location will be affected in the same way.

Does it only concern high-temperature climates?

No. But it is more likely to happen in them because the high working temperatures will cause it to happen faster. A light that may show colour shift in Finland will almost certainly suffer from it in Qatar. So high-temperature climates in a way are the ultimate test in terms of quality and heat management.

Paolo Corno, Technical Director & Co-Founder, Midstream Lighting

With over ten years of LED lighting industry experience, Paolo is an invaluable and highly regarded member of our core leadership team.
Coming on board as one of the company’s co-founders in 2013, Paolo’s responsible for overseeing our Lighting Design, Engineering, and R&D Teams. He personally leads the design and development of Midstream’s comprehensive product portfolio – including the Atlas, Titan and Modus Floodlight Series – which are installed in over 85 airports globally.
An experienced designer, who holds a degree from Bocconi University in Milan, Paolo has led the design of over 100 LED lighting solutions in the aviation, maritime, sports and horticultural markets. ensuring that all national, local, industry and customer requirements are met.

Recent Blog Posts

Midstream Lighting