Energy Efficient Lighting
Jul/17

13

Wimbledon goes LED – just in time for finals

THE All England Lawn Tennis Club has ditched the metal halide lighting in Centre Court for LED in time for the 2017 championships.

An American sports lighting specialist has installed LED lighting in the retractable roof that covers Wimbledon Centre Court. The move improves the quality of TV broadcasts and, unlike the metal halides, allows instant striking.

Top: Danish tennis star Caroline Wozniaki was one of the first to play under the LED lights. Pic: Gregg Gorman 2017 Above: The arrangement of the original metal halide luminaires.

‘The purpose of the project was to improve the quality of lighting for broadcasters, whilst simultaneously improving the functionality of the lighting as part of the roof operation,’ AELTC estate director Robert Deatker told Lux.

‘Specifically, this involves reducing the amount of time required by the lights to warm up or cool down, thus making it quicker to resume play,’

The LEDs are a cool 5700K with a CRI of 90. Depending on camera position, the vertical illuminance is 1300–1700 lx and horizontal illuminance is 3000 lx.

The installation is part of growing switch to LED in top-level sports. Many Premier League teams – including Chelsea, Arsenal, Southampton, Bournemouth and Hull City – have already made the switch as have Juventus in Italy and Seville in Spain.

In the US major league baseball teams using solid state lighting including the New York Yankees, the San Diego Padres, Texas Rangers, and Houston Astros.

The lighting firm, working with consultants ME Engineers, created a mockup of the Wimbledon visual setting at its US manufacturing facility to test different CCT and CRI combinations to achieve the optimal combination of direct and indirect light. It also consulted with a UK-based TV crew and professional tennis players to fine-tune the specifications.

The metal halide lighting was installed with the retractable roof in 2009.

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Jul/17

11

Sainsbury’s adds IoT capability in plan to go all-LED

The plan will make the company the first grocery retailer in the UK to power all its supermarkets entirely by LED lighting.

Some 250,000 luminaires will be retrofitted in 250 superstores in the next three years in addition to those already installed during the company’s ongoing roll-out.

The new fixtures are part of a deal with Current, GE’s low-energy technology supplier, which will see energy used by the lighting reduced by 58 per cent.

Sainsbury’s sustainability chief Paul Crewe says  customers expect the retailer to do the right thing on their behalf. ‘They can be reassured that, day or night, when they visit a Sainsbury’s supermarket, we’ve made a significant in-road into creating a greener supermarket for them.’

The lighting retrofit also opens the door to future digital collaboration between the two companies.

The lighting could also be used as a platform for sensors and beacons, allowing interaction with customers. GE’s Predix Internet-of-Things network can transform the lighting into a smart digital infrastructure that uses data and analytics to optimise energy usage, employee productivity and customer interaction.

Sainsbury’s sustainability chief Paul Crewe told Lux: ‘We’ve almost halved the carbon emissions of our stores since 2005, and in the last 12 months we’ve reduced our electricity use by 11.6 per cent despite growing our operation by 54 per cent’.

‘Our customers expect us to do the right thing on their behalf, and they can be reassured that, day or night, when they visit a Sainsbury’s supermarket, we’ve made a significant in-road into creating a greener supermarket for them.’

The project will support Sainsbury’s Sustainability Plan, which calls for carbon emissions by be cut by 30 per cent from 2005 levels. The target has spurred numerous energy efficiency and renewable energy initiatives across its many UK stores, from LED retrofits to solar panels, biomass boilers and ground source heat pumps.  To date, Sainsbury’s has already cut absolute carbon emissions by more than 20 percent and is on track to achieve its 2020 target.

Current is delivering the massive lighting retrofit as a turnkey service, embedding financing with lighting design, product supply, installation and project management services.

LUX VIDEO REPORT: THE BIG SAINSBURY’S LED ROLL-OUT

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Jun/17

12

LEDs to the Rescue – the Grass IS Greener!

LED makes grass on Bundesliga football pitches ‘healthier’

The Greenkeeper LED system in action at the FC Köln ground. Coloured LEDs are used to help spur grass growth.

A wheeled lighting frame stacked with LEDs is being used to improve grass conditions at leading German football club FC Köln (FC Cologne).

FC Köln, which holds a prized place in the German Bundesliga, is using a mobile LED light structure that can move around the team’s training and match pitches beaming LED light onto the field.

The club hopes that the LEDs will speed up the turf’s recovery after taking a bruising during a match.

The areas in front of the goals see a disproportionate amount of traffic during a match and therefore need more treatment from the LED lighting.

The team has found that the system leads to grass filling in gaps damaged by play much more quickly than with the older system. Meanwhile, the LED sources are delivering energy savings at the same time.

Hennef, Germany-based Rhenac GreenTec AG developed the LED lighting system, named Greenkeeper, which uses Tina2 optics from Finland-based LEDiL Oy to deliver the required beam pattern.

The frame uses mainly red LEDs with a smaller number of blue LEDs to cover the well-documented chlorophyll absorption peaks of plants. Furthermore, the system includes an integrated infrared heating system to approximate ideal grass-growing conditions, as reported in LEDs Magazine.

FC Köln has found that the LED system delivers six times more light to the playing surface relative to the older HID system. And the mobility enables the pitch crew to move the system into areas that require extra attention.

Evidence gathered from numerous trials, taking place around the world, seems to prove that plants and crops grown using LED light sources, with spectrums tuned specifically to the individual plant or crop, will not only grow faster, but will generally be healthier and provide greater yields – something that bodes well for the future of the LED lighting industry.

A revolution is happening in horticulture. It’s a seismic shift that will change fundamentally how we grow plants – and it’s all down to lighting. Lux’s Horticulture Lighting Conference

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Jun/17

6

Top US lighting firm bets the house on IoT

Acuity Brands is placing its faith in the Internet of Things as the future of lighting, by making a major investment in the technology.

The company is hoping to expand its catalogue of IoT offerings, by bringing luminaires and building management controls together.

IoT sensors implanted in LEDs have the ability to collect analytical information on the behaviour of the people that use a building, offering information on how long people stay in a room, for example, and during what hours of the day.

Acuity has devised software that  will offer an array of capabilities, including indoor positioning, asset tracking, space utilisation, spatial analytics and energy management.

The company unveiled its new product, Atrius, at Lightfair in Philadelphia, which, the firm hopes will advance Acuity’s IoT products, making them much more sensory.

‘Lights are installed throughout most of our indoor and outdoor spaces. In addition, lights are powered and connected, and with the emergence of LED lighting, they now feature onboard intelligence.’

Greg Carter, vice president and general manager of Atrius

The product can help employees find available meeting rooms, empower travelers to navigate busy airports, guide shoppers to a specific product on a store shelf or permit a retailer to receive an alert that a customer needs sales assistance.

‘Lights are installed throughout most of our indoor and outdoor spaces. In addition, lights are powered and connected, and with the emergence of LED lighting, they now feature onboard intelligence,’ commented Greg Carter, vice president and general manager of Atrius.

‘That’s why we believe LED lighting is the best and least expensive infrastructure for delivering a sensory network that feeds IoT platforms to connect systems, spaces and people.’

Atrius IoT applications utilise LED lighting infrastructure rather than requiring additional equipment like stand-alone beacons or dedicated IoT networks, bringing a faster return-on-investment.

As IoT technology improves, upgrades are simple and cost effective. Further, the conversion of conventional lighting to LED lighting can provide the energy savings to help fund evolving IoT capabilities.

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May/17

25

Bright morning light cuts stress in office workers

The subjects who received sufficient light – either daylight or artificial – to stimulate their body’s natural sleep-wake cycle, or circadian rhythm, were able to fall asleep more quickly at bedtime, and experienced better quality sleep.

Office workers who receive bright light in the morning have better sleep and lower levels of stress than those who receive low light levels, scientists have discovered.

The subjects who received sufficient light – either daylight or artificial – to stimulate their body’s natural sleep-wake cycle, or circadian rhythm, were able to fall asleep more quickly at bedtime, and experienced better quality sleep. They also reported lower levels of stress and depression.

The finding was consistent during both summer and winter. The scientists, working at the Lighting Research Center at Rensselaer Polytechnic Institute in New York state, recorded each subject’s daily circadian stimulus or CS, the calculated effectiveness of light’s impact on the circadian system. It ranges from 0.1, the threshold for circadian system activation, to 0.7, the response saturation.

The team, led by  Dr. Mariana Figueiro, found that office workers receiving a morning CS of at least 0.3, regardless of source, had stronger circadian rhythms, than those receiving a morning CS of 0.15 or less.

At bedtime, participants receiving low CS lay in bed for approximately 45 minutes before they could actually fall asleep, which can lead to reduced sleep duration for those with a fixed wake time.

The study included 109 participants at five office buildings across America. Each study participant wore a Daysimeter, a research tool developed by the LRC in 2004, and used in frequent studies to measure the amount of CS a person actually receives, along with their activity patterns. Each participant was asked to wear the Daysimeter as a pendant for seven consecutive days during data collection periods in winter, between December and February, and again in summer, between late May and August. Data collection was conducted between 2014 and 2016.

‘Our study shows that exposure to high CS during the day, particularly in the morning, is associated with better overall sleep quality and mood scores than exposure to low CS,’ Figueiro told Lux. ‘The present results are a first step toward promoting the adoption of new, more meaningful metrics for field research, providing new ways to measure and quantify circadian-effective light.’

‘We are supporting this type of research so we can learn more about the connections between lighting and health,’ said Bryan Steverson with GSA. ‘The data from this research will help support our efforts in developing new lighting practices that can optimize health benefits for federal employees working in our federal buildings.’

The results will be seized on by proponents of so-called human-centric lighting, in which artificial lighting levels and colour are manipulated during the day to better harmonise with our natural circadian rhythms.

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Apr/17

20

Chiltern Railways zaps energy binge with LED overhaul

Chiltern Railways was in desperate need of a cost slashing innovation to reduce energy usage and an inventive application of LED technology offered the answer.

The Arriva owned company has updated the internal and external lighting at three major stations, Wembley, Aylesbury and Stourbridge in the south of the UK.

Energy-intensive 400W highbays at the Wembley and Aylesbury maintenance depots were replaced with hooked LED highbays in a range of wattages and a sustainable, higher efficiency, longer lamp life replacement for traditional 2D bulk heads, was installed in the staff shower and toilet facilities at Wembley.

The offices on both sites were kitted out with ultra slim ceiling panels that deliver high performance and attractive LED lighting. Fluorescent tubing has also been removed and replaced with highly efficient non-corrosive LED fittings, to act as a lower energy consumption alternative.

The LED highbays installed at the Wembley and Aylesbury maintenance depots delivered a 67 per cent and 48 per cent saving in energy consumption respectively. Both sites also realised a further 64 per cent reduction in energy usage thanks to the new ceiling panels.

A mix of LED amenity, street and area lighting products were also installed to deliver optimum illumination in a number of outside areas, including pathways around and access roads to the railway tracks.

A further thirty flood lights were installed to illuminate the tracks at the Stourbridge site and another 285 replaced the legacy 40W twin CFL lights along the pathway running adjacent to the railway track at Wembley.

In all three locations, this provided Chiltern Railways with a low power, high quality LED replacement for the incumbent energy-intensive flood lighting.

Emergency lighting at Wembley which had proved to be problematic, was also upgraded.

At Stourbridge, replacing the energy-intensive legacy lighting alongside the tracks with flood lights resulted in a 62 per cent reduction in energy consumption. Furthermore Chiltern Railways will achieve an average 61 per cent reduction in CO2 emissions.

In addition, Chiltern Railways no longer has to factor in time or budget for maintenance. Chiltern Railways estimate they will benefit from a further reduction in spend of around £10,000 per annum, the amount it previously cost to maintain the lighting infrastructure.

Another benefit has been a dramatic improvement in the quality of light. The external areas are now brighter, more secure and offer safer working environment for the company’s employees.

The superior uniformity of light and improved illumination within the offices, has also been well received by Chiltern’s staff.

Visit us at www.novelenergylighting.com to explore our range of LED high bays, LED Bulkheads, and LED Floods, or call us: 0208-540-8287

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 The potential decision to sell of the firm’s prestige lighting business will come as a surprise to some, especially as lighting, in the early days of the company, defined GE.

 

GE is thought to be considering selling its lighting buisness so it can concentrate on producing large complex equipment such as aircraft engines.

GE, the company credited with inventing and mass marketing the lightbulb, is reportedly plotting to sell of its lighting division.

The Wall Street Journal reports that the firm has been talking to a number of investment banks about a potential deal.

GE was co-founded by Thomas Edison, the inventor of the first viable incandescent lamp, over a century ago and the jettisoning of the firm’s lighting business a century later could net the company up to $500 million.

The Boston based company has been gradually selling off businesses since 2004, including its insurance, credit card, plastics and security divisions.

It is thought that GE is taking these actions so it can concentrate on producing large complex equipment such as power turbines, aircraft engines, health-care equipment and trains, while gaining a considerable income stream from the very lucrative service contracts that go alongside developing these machines.

Nevertheless, the potential decision to sell of the firm’s prestige lighting business will come as a surprise to some, especially as lighting, in the early days of the company, defined GE.

GE has so far refused to comment on the rumours.

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Apr/17

13

LEDs found to increase yields in wide range of plants

Research found that 32 days after they were planted and nourished under LED light, tomato plants showed a 45 percent increase in height and a 28 percent increase in weight.

Improvements in weight, morphology, flowering, root development and flavour have been spotted in plants grown under supplemental LED lights in greenhouses.

Tomato plants have been found to show a 45 per cent increase in height and weight when cultivated under LED lights.

The new research, which was conducted by LumiGrow, who develop LED technology for use on farms, noted an increase in flowering observed in cucumber plants, as well as a reduction in the spread of powdery mildew, which is a common problem.

Increased flowering rates were also found in tomato and cannabis plants. The research also aimed to pinpoint the optimum supplemental LED light intensity for strawberry production.

The research was presented by Dr. Xiuming Hao and Shalin Khosla of Harrow Research and by Dr. Melanie Yelton, who is vice president of research at LumiGrow, to an exclusive grower’s council at Harrow Research and Development Centre.

A broad range of growers made up the audience, including vegetable, floriculture and cannabis producers, all looking to take full advantage of the LED revolution in horticulture.

The research found that 32 days after they were planted and nourished under LED light, the tomato plants showed a 45 percent increase in height and a 28 percent increase in weight.

Improvements in weight, morphology, flowering, root development and flavour were also spotted.

LumiGrow’s inventive Grow Light Sensor technology was also displayed and discussed at the meeting. The sensor is able to measure and monitor ambient light from the sun and then analyses this collated information to decide how much supplemental LED light is required in the greenhouse to keep conditions consistent.

www.novelenergylighting.com

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Apr/17

11

Here comes the moon: CoeLux launches night version

 ‘The moon, unlike the sun, lets you look at her, it seems she wants to be looked at’, commented Paolo Di Trapani, CEO of CoeLux, who is behind the latest innovation.

 

CoeLux Moon aims to create a comforting and relaxing ambience and less light is used to produce the final effect than the original sunlight CoeLux uses.

CoeLux’s artificial skylights have rocked the industry due to their convincing reproduction of sunlight. Now the company has launched a new version that aims to be just as successful at recreating the night sky.

CoeLux Moon is being launched at Euroluce 2017, which is currently taking place in Milan.

‘The moon, unlike the sun, lets you look at her, it seems she wants to be looked at,’ commented Paolo Di Trapani, CEO of CoeLux, who is behind the latest innovation.

CoeLux chose last year’s LuxLive to launch the second generation of the CoeLux daylight range, which is comprised of smaller less costly fittings.

‘By rebuilding the physical mechanisms that happen in the atmosphere we have ended up with a product that allows people to feel the same as they do when they look up at the real sky.’ Di Trapani continued.

CoeLux Moon aims to create a comforting and relaxing ambience and less light is used to produce the final effect than the original sunlight CoeLux uses.

The potential health benefits that might be derived from using CoeLux are still being investigating by the company.

CoeLux claims to have psychological and physiological data on the capacity of people to relax and feel calmer when using CoeLux and it might even possibly be used to improve post-operation recovery times in hospitals.

‘We have evidence from the psychological ward at the San Raffaele Hospital in Milan, that people who have a room on the sunny east side recovered 20 to 30 percent faster from operations than those on the west side of the building,’ Di Trapani told Lux Magazine.

It will be interesting to see if CoeLux Moon has the same effect on wellbeing as the company’s original skylight.

Watch the orginal CoeLux in action here:

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Apr/17

10

Has Amazon conquered lighting control by stealth?

Amazon’s voice technology ‘Alexa’ forms the backbone of the firm’s Echo platform, but Alexa is also finding its way into a string of third party innovations.

The Amazon Fund have invested in a number of start-ups that aim to improve voice technology used in the home. The Fund  has already invested  in firms such as Musaic, a smart HiFi that allows users to integrate lighting with their playlists.

Amazon has launched a $100 million strong fund to fuel voice technology innovation, with the intention of ensuring it becomes the key tool used in home lighting control.

Named the Alexa Fund after the voice that assists users on the company’s Amazon Echo platform, the venture capital stream aims to fundamentally improve the way that people use voice technology, including to control lighting.

The Alexa Fund will offer financial help to independent developers and device-makers who wish to advance voice technology, be that through creating new Alexa capabilities, or by expanding the boundaries of voice technology through development and research.

As part of the Fund, Amazon has launched the Alexa Accelerator, which aims to encourage start-ups to bring their voice technology aspirations into a concrete reality.

Companies are chosen after a rigorous selection process and are then invited to take part in a 13-week program in Seattle, where they get the opportunity to work with leading technologists and product leaders from Amazon and Techstars.

The Alexa Fund has already helped a number of start-ups, including Musaic, a voice activated, wireless HiFi system that allows users to integrate smart lighting to react to a particular playlist or song.

Amazon were not present at the Consumer Electronics Show in the US last year, but Alexa could be found in numerous third party innovations that the company has invested in.

The Fund has also invested $35 million in the smart thermostat system Echobee, £5.6 million in the Alexa powered video intercom Nucleus and has made a further million-dollar investment in Rachio, a smart sprinkler system.

The Alexa Fund has been labelled as a ‘stealth takeover’ of the smart home market by Amazon and it is possible that future smart lighting apps and devices may be developed with Amazon money.

At major technology shows, such as the Consumer Electronics Show in the United States, Amazon were not obviously present. However, Alexa technology could be found in numerous third party devices from lighting systems, to home security cameras and cars.

Nevertheless, despite Amazon’s surreptitious attempts to conquer the smart lighting market, the company does face stringent opposition from the likes of Apple’s Homeworks, Google’s upcoming Brillo and Samsung’s SmartThings.

But for now, Amazon is the logical choice for third party Internet of Things start-ups looking for investment and that doesn’t look likely to change any time soon.

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