Earth Day 2014 – Companies Get Greener

Walmart goes for LEDs

Walmart goes for LEDs

In honor of Earth Day 2014, we’ll take a look at how some companies are leveraging LEDs to save energy, bring new aesthetics to their businesses and even save that other valuable resource, money.

Starbucks is committed to using LED lighting in their coffee houses globally. By 2010, Starbucks was able to complete installation in more than 7,000 company-owned stores in the United States, Canada, the UK, China and Singapore. According to Starbucks, This effort has helped reduce the company’s electricity consumption by 3.3 percent since 2008 along with other measures. In FY2011, the company said that electricity use had decreased by more than 7.5 percent since 2008 with a goal of 25 percent by 2015.

Most recently worldwide discount chain Walmart, along with their lighting vendor GE, announced that Walmart will convert to energy-efficient LED ceiling lighting fixtures for new supercenters in the United States, stores in Asia and Latin America, and Asda locations in the United Kingdom. The new fixtures will use 40 percent less energy than lighting sources historically used in stores, and will help the retailer achieve a 20 percent reduction in the kilowatt hour (kWh) per square foot of energy required to power Walmart’s buildings globally by 2020.

Philips worked with Harrods to convert their Wedgewood display to LED lighting in their famous department store in Knightsbridge, London. LEDs replaced halogen lamps in the chandeliers bringing the sparkle back to the Wedgwood area. The LED lighting provides a 74% reduction in installed electrical load, considerably lower heat gains and reduced maintenance requirements. “The chandeliers now look brilliant and the floor staff is very happy with the new candle lamps. We will be specifying them for all of the chandeliers throughout the store in the future,” said Mark Fleming, Harrods Engineering Technical Manager, in a Philips case study about the project.

The New England Aquarium (NEAQ) in Boston recently installed over 160 LED fixtures from Lumenpulse, a leading manufacturer of high-performance, architectural LED lighting solutions.  The project, by Lighting design firm Available Light, enhanced the overall visitor experience, improved animal care with a more naturalistic lighting approach, and even helped biologists curb the growth of algae in the NEAQ’s Giant Ocean Tank (GOT) through LED lighting.

Part of a six-year renovation of the NEAQ, the goal of the lighting project was to bring a sense of theatricality to the aquarium, highlighting the animals and coral reef with new dynamic lighting based on a unique WGB color mixing system that uses white, blue and green LEDs to show off the water while inhibiting algae growth.

“We learned that higher color temperatures are less conducive to algae growth,” said Matt Zelkowitz, Assoc. IALD, LC Principal at Available Light, in a press release. “Red light did not really penetrate or affect the water, while blue and green were magical in manipulating tonality.”

For Further Reading

LEDs Magazine, Starbucks converts US stores to LED lighting, http://www.ledsmagazine.com/articles/2009/11/starbucks-converts-us-stores-to-led-lighting.html

Walmart, Walmart and GE Transforming Retail Lighting with Energy-Efficient LEDs Globally, http://news.walmart.com/news-archive/2014/04/09/walmart-and-ge-transforming-retail-lighting-with-energy-efficient-leds-globally

Philips, Harrods, UK, http://www.lighting.philips.com/main/projects/harrods.wpd

LEDs Magazine, New England Aquarium recaptures spotlight with Lumenpulse LED lighting fixtures, http://www.ledsmagazine.com/content/leds/en/ugc/2013/10/new-england-aquarium-recaptures-spotlight-with-lumenpulse-led-lighting-fixtures.html

Sochi Olympic Venues Light Up with LEDs

The Winter Olympics in Sochi, Russia begin in just a few weeks on February 7th with the Opening Ceremonies.  The buzz about the Olympics is only just beginning.  This week Clearlysapphire focuses on the lighting for the games. Unlike many Olympic cities, Russia’s Sochi had to start from scratch and build their entire Olympic infrastructure from scratch. This did allow organizers to focus on building green, including installing green lighting using standards developed by the Russian Federation.  In total 200 buildings were built according to these standards, the first applied to construction in Russia, for the Games.

Organizers selected LEDs for lighting several key venues including Fisht Olympic Stadium, Bolshoy Ice Dome, Shayba Arena, and the Iceberg Skating Palace.  We’ll focus on two of them here.

The Bolshoy Ice Dome, to be used for hockey, features an innovative aluminum roof studded with 38,000 LEDs. Inspired by an ice drop, the roof will light up at night in vibrant colors like this photo. The facility will seat 12,000 people and will be used for concerts and sporting events after the Olympics. Fact:  Bolshoy means “major” in Russian.

Bolshoy Ice Dom, Sochi, Russia, lit up with LEDs, is home to ice hockey.

Bolshoy Ice Dom, Sochi, Russia, lit up with LEDs, is home to ice hockey.

The second building we’ll focus on is the Shayba Arena, also one of the ice hockey venues for the Olympics.  It features the latest in LED scoreboard technology installed by ColosseoEAS, a Slovakian company and a European leader in sports arena technology.  Shayba’s aluminum exterior features 45,000 programmable LEDs.  After the Olympics, the 7,000 seat Shayba will be dismantled and transported to another city in Russia for use as an ice sports facility.  Fact:  Shayba means “puck” in Russian.

Shayba Area is also home to Olympic ice hockey.

Shayba Area is also home to Olympic ice hockey.

For Further Reading

Official Web Site for Sochi 2014, http://www.sochi2014.com

Sports Illustrated, All-new Sochi Olympics venues a spectacle of lights, ice, http://sportsillustrated.cnn.com/-olympics/news/20140106/sochi-winter-olympics-stadiums/

Sports Illustrated, First look: Sochi Olympic hockey will live in lights and ice domes, http://nhl.si.com/2014/01/09/first-look-sochi-olympic-hockey-will-live-in-lights-and-ice-domes/

 

 

 

 

 

LED Applications – Celebrating the Royal Birth in LEDs

London and the world celebrated the birth of the latest heir to the British throne, Prince George Alexander Louis, in style with LEDs.  A number of landmarks in London turned blue to celebrate the occasion and even a few outside of the UK turned blue in honor of the future king.  For a video, go to this BBC story.

The 600 foot tall BT Tower used more than 500K LEDs for the announcement:

royal baby BT Tower

 

 

 

 

 

 

 

 

The famous London Eye ferris wheel turned red, white and blue:

Royalblu_381

 

 

 

 

 

 

The fountain at Trafalgar Square marked the occasion in blue:

Trafalgar square

 

 

 

 

 

Even the London Bridge turned blue:

London Bridge in Blue

 

 

 

 

 

Not to be outdone, North America celebrated too with Niagra Falls turning blue:

Niagra Falls Blue

 

 

 

 

 

Toronto’s CN Tower:

Toronto CN Tower

 

 

 

 

 

Christchurch Airport in New Zealand turned blue too.

Christchurch Airport NZ

 

 

 

 

 

For Further Reading and Viewing

The BBC, Royal baby: London landmarks turn blue for birth, http://www.bbc.co.uk/news/uk-23416932 (video)

The Daily Mail, The world turns a Royal shade of blue, http://www.dailymail.co.uk/news/article-2374793/Kate-Middleton-gives-birth-Royal-baby-boy-landmarks-globe-illuminated.html

Benefits of LED Lighting for Cows and Bees

CowsMany industries are looking at using LEDs, but researchers may have found some unexpected benefits of LED lighting for cows and bees.

Iowa Farmer Today reported that dairy cows produce more milk with LED lighting.  While it is still early, a 2010 Oklahoma State study comparing LED lighting to traditional light in dairies resulted in a 6% bump in milk production for the cows exposed to LED lighting.

The experiment compared a 500-cow free-stall barn outfitted with LEDs on one side and traditional metal halide lighting on the other.  Researchers found that cows responded positively to LED light with increased milk production.  Researchers observed that the directional light from LEDs provided the cows with a boost in feed intake.  The researchers don’t know if the increase in milk production is from the feed intake itself, or a possible increase in hormones that promote milk production. In order to prove that LED light increases milk production researchers will need to study further.  They’ll need to determine the effects of increased light, intensity and other variables as well as replicate the study at different facilities.

Pollination by bees is a necessary part of growing flowers and crops.  But bumble bees suffer from poor vision and sensitivity to certain wavelengths of light. In fact, northern climates have shorter growing seasons in part due to the lack of available natural light for pollinator bumble bees.  Use of artificial light sources in horticulture has been an issue due to the bumble bee’s limited vision under UVB, blue and green light.  Finding an artificial light source that works with pollinator bees will help horticulture in areas with limited natural light.

LED grow-light manufacturer Valoya demonstrated the functionality of their lights in a tomato trial at PlantResearch in Made, Netherlands.  The company compared pollinator bee activity in two compartments: one with LED lighting and another with only natural light. The bees in the LED compartment started flying out to flowers immediately when the AP67-LED lights were turned on.  The bees in compartments with high pressure sodium lights on (and an open hatch) only started to move 4 hours later when some natural light became available through the open hatch.  More study is needed, but LED-grow lights may prove effective to increase pollination time in areas with limited amounts of natural light.

For Further Reading

Iowa Farmer Today, Milking lighting to boost production, http://www.iowafarmertoday.com/news/dairy/milking-lighting-to-boost-production/article_4b824b94-028a-11e2-8a2d-001a4bcf887a.html

Valoya Press Release, Valoya’s Horticultural LED Lights Enable Pollinator Bees to Operate without Natural Light, http://www.valoya.com/document-repository/press-releases/document/valoyas-horticultural-led-lights-enable-pollinator-bees-to-operate-without-natural-light?format=raw

LEDs Magazine, Valoya claims additional benefits for LEDs in horticulture, bees like SSL, http://ledsmagazine.com/news/10/6/13

Industrial LED Lighting Gains Momentum

 

LED lighting in an industrial location (source, Greenbiz.com, http://bit.ly/YZFMbE)

IDC Energy Insights reports that the industrial market for LEDs is picking up momentum as companies looking to build new “smart” facilities or retrofit old ones choose energy efficient LED lighting.  Adoption of LEDs for industrial lighting is good news for the commercial sapphire market and others in the LED supply chain. More LED lighting means more demand for sapphire.

First, let’s start with some background.  Warehouses are particularly fertile ground for LED lighting since instant-on LED lights provide virtually no cycle time compared to traditional industrial lighting sources like HID (high-intensity discharge lamps) along with lower lifetime costs (including maintenance), higher efficacy and local utility incentives among others.

For those who watched the recent Super Bowl in New Orleans, the HID lights may be familiar.   After the electricity loss during the second half, the lengthy delay in the game – more than 20 minutes — was partially due to the cycle time of the HID lighting for the interior of the stadium.  In a warehouse situation, HID cycle time becomes a big issue as no one wants to wait for the lights to cycle and as a result, many warehouses just keep the lights on, running up energy costs.

IDC Energy Insights research analyst Casey Talon commented in her clean energy blog that LED lighting and “smart building” will be the disruptive technology for energy efficiency over the next three years.

Talon highlighted two big announcements in early January 2013 that demonstrate the momentum of smart building with LED lighting.  First, lighting leader Acuity Brands acquired Adura Technologies.  Adura’s Zigbee wireless mesh architecture enables individual fixture controls for cost and energy savings.  Secondly, Digital Lumens, a leader in the industrial lighting solutions market, announced new growth numbers and funding, that demonstrates the viability of the emerging smart building technology segment.  The company secured a new round of $10 million in financing and reported a footprint of 500 ‘large-scale’ installations representing 150% growth.

She notes in the blog that “fundamentally this news demonstrates that end users are increasingly aware of the benefits of energy efficiency to both their bottom lines and corporate goals.  The activity in these markets illustrates a growing acceptance of upfront costs to achieve longer term benefits.”

LED lighting combined with lighting control and management software offers the ability to track and manage the benefits of LED lighting.  Wireless controls and analytics help building managers understand when to have lighting on or off when employees are present, measure “free” ambient light from outside to cut down reliance on lighting, and know when and where to adjust brightness in areas when high precision work is needed.

Using analytics already is paying off.  According to one case study from Digital Lumens, Vector Aerospace Helicopter Services North America, a worldwide leader in helicopter maintenance, repair and overhaul for Sikorsky, Eurocopter, AgustaWestland and Boeing helicopters, saved more than 72% on their annual energy costs with a Digital Lumens retrofit.

According to Talon, “If these early announcements are a signal, then 2013 may mark a tipping point in the smart buildings marketplace as customer awareness and investment begin to converge for broader adoption of intelligent energy management solutions.”

Further Reading

IDC Energy Insights, Illuminating the Smart Building, https://idc-insights-community.com/energy/clean-energy/illuminatingthesmartbuilding

Greenbiz.com, LED lighting gaining traction in commercial retrofits, http://www.greenbiz.com/news/2013/02/05/led-lighting-gaining-traction-commercial-retrofits