Albany Airport Lighting Retrofit to Save $66,000 a Year


Albany International Airport expects to save $66,000 annually in utility costs from a lighting retrofit, The Business Review reports.

Some 1,969 fixtures are being replaced with high-efficiency LEDs in the baggage claim, third-floor terminal offices, the art and culture exhibit area, observation level, a conference room, vendor areas and restrooms.

Work is slated for completion by Feb. 22.
The Business Review says airport officials expect the project to pay for itself in five years, and save $1.2 million in 20 years.

CPS Energy Retrofits 20,000 Street Lamps to LED


LED Luminaires will replace over 20,000 high-pressure sodium (HPS) street lamps in San Antonio, Texas.
CPS Energy selected LED products that will be communications-enabled, allowing for connection to the Smart Grid and other communications technologies.
San Antonio’s pre-existing 250-watt HPS luminaires consume 310 system watts and are being replaced by LED luminaires.
Conventional HPS luminaires produce a low color rendering, which may make it difficult to discern true colors of cars or surroundings, whereas LED luminaires produce a more accurate color rendering. Additionally, LED luminaires produce superior light uniformity, which means the light is directed where it’s needed with less light loss or misdirected light and more uniform light levels with better average to minimum footcandles, as compared to HPS luminaires. The monochromatic nature of HPS also makes the ability to detect contrast difficult. This affects a driver’s ability to see small objects or obstructions on the road, which could represent a safety hazard.
The LED Luminaire is a direct replacement for high-intensity discharge (HID) lighting, such as HPS or metal-halide. The LED luminaire has a rated life of 100,000 hours L85, and the photocells have a rated life of 15 years, which means the luminaire lasts up to 5 times longer with a lower lumen depreciation than metal-halide and twice as long as high-pressure sodium products.

Good Design Key to Savings with Occupancy Sensor Controlled LED Systems


Occupancy sensor controlled LED lighting — if done correctly — can enhance savings from an already efficient lighting system as much as an additional 76 percent, after those gained by the initial conversion to LED, according to a U.S. Department of Energy report.
The DOE Gateway Solid-State Lighting Technology Demonstration Program, which evaluates LED products in real-world applications, reviewed motion detection systems at two parking structures and two parking lots. It found a broad range of outcomes (see table) and several issues that affected savings, including product design deficiencies. In some cases, these problems stemmed from inexperience deploying occupancy sensors; in one case the products weren’t designed to sustain exposure to the environment, DOE reports.
Using technology that is not adapted to an individual site can also bring additional energy savings down to virtually nothing, according to the study. Problems here include inadequate or incorrect sensor coverage.
Additionally, widely varying time delay settings between sensors at a single site, and low power settings producing more light than needed during periods of non-activity made occupancy sensor systems less efficient. Overlapping controls over the same lighting system also cut savings.
In one of the report’s case studies, DOE reviewed an underground parking garage in Washington, DC. The project replaced 19 ceiling-mounted 100 W (129.5 W including ballast) HPS fixtures with LED lighting.
The parking garage, located under an office building, is lighted 24 hours per day, 365 days per year; it sees little traffic at nights, weekends and holiday. Most of the spaces are assigned, which means drivers don’t spend much time searching for parking. DOE says the parking garage’s consistent schedule makes is an ideal facility to use motion detectors.
The study found energy savings relative to the original HPS baseline was 74 percent when the sensors’ time delay was set at 10 minutes. It increase to 88 percent at the 2.5-minute setting. DOE says is the initial 10-minute LED setting is used as the baseline (instead of the HPS, yielding a projected 134 kWh/yr per fixture at 2.5 minutes versus 293 kWh/yr per fixture at 10 minutes), the increase in savings from adjusting the occupancy sensor delay is 54 percent.

LED Lighting Saves Brookshire Brothers ‘$235,000 in Annual Operating Costs’


Brookshire Brothers expects to reduce its annual operating costs more than $235,000 after installing energy-efficient lighting at its retail supermarkets in Texas and Louisiana, according to the companies.
The company launched a facility-wide lighting update at its 72 stores including in-store, parking lot, exterior signage and refrigerated case fixtures. Using several new linear fluorescent lighting (LFL) and LED technologies, Brookshire Brothers expects to cut its annual electricity use by 2.4 million kWhs, and eliminate more than 3.8 million pounds per year of CO2 emissions, the companies say.Brookshire Brothers has completed re-lamping of linear fluorescent lighting (LFL) fixtures at 69 locations, replacing its older 32-watt bulbs with more energy-efficient 28-watt T8 in some 450 four-lamp fixtures per 30,000-square-foot supermarket.
This saves the company more than $220,000 annually based on a $0.09 kWh electricity rate and 12 hours use per day.
Additionally, five supermarket parking lots including company headquarters have been retrofit with LED area lights. These 210-watt lights replaced 400-watt high-intensity discharge (HID) fixtures in two lots; the other three lots used 270-watt area lights to replace 1,000-watt HIDs. Brookshire Brothers says this retrofit will save more than $14,000 annually in electricity costs.
The supermarket chain installed LED lighting in refrigerated display cases in four Brookshire Brothers locations, which house 100 frozen food doors on average. these lights eliminate glare, reduce energy use by 60 percent and are rated for 50,000-hours life, which is four times longer than the fluorescent lights they replaced.
Additionally, wine displays in two stores have been lit with energy smart LED replacement lamps. 10-watt PAR30 LED floodlights (500 lumens) replaced 45 75-watt halogen lamps (940 lumens) in each store. This will save Brookshire Brothers $3,200 in combined annual energy and maintenance savings; the wine display lighting will pay for itself in 13 months.
In late November, Sheetz retail gasoline/convenience stores installed LED lighting at some 130 locations, which is delivering a 45 percent reduction in energy costs for interior lighting and a 50-55 percent reduction in exterior lighting compared to the lighting it replaced.

LED Lights Reduce Energy Costs More Than 45% at Sheetz Gas Stations


More than 130 locations of Sheetz retail gasoline/convenience stores now feature LED lighting.
The energy-efficient lighting at Sheetz store locations is delivering a 45 percent reduction in energy costs for interior lighting and a 50-55 percent reduction in exterior lighting compared to the lighting it replaced.
LED area and flood luminaires and 227 Series canopy luminaires replaced the exterior metal halide lighting fixtures. Additionally, 46 of the 131 upgraded Sheetz stores are illuminated with CR14 linear luminaires and CR6 downlights, updating the original fluorescent and compact fluorescent lights.
According to Sheetz, LED lighting makes its stores appear brighter and safer. Also, LED lighting provides 50,000 hours of longevity, and Sheetz expects a reduction in maintenance costs and a considerably lower amount of kilowatt-hours of electricity used annually.
Sheetz is planning to open new locations in its six-state footprint and to use LED lighting at those new facilities.

Big tenants, landlords switch to greener lights


Ernst & Young expects new LED lights to yield annual savings of $1 million. SL Green will replace 8,000 bulbs at four properties by the end of the month, hoping to reap similar gains.

In an effort to lighten its energy bill, accounting giant Ernst & Young announced Tuesday that it had installed LED (light-emitting diode) bulbs throughout its Times Square office building. The firm calculates that as a result of the switch-over at 5 Times Square, its energy consumption will nearly be halved, for an annual savings of a cool $1 million. Mayor Michael Bloomberg and many others have long beaten the drum for greater energy conservation in commercial buildings, and many new towers have won Leadership in Energy and Environmental Design, or LEED, certification for their green-ness in recent years, but making similar strides in existing buildings has proven harder. Famously, the Empire State Building has spent millions on new windows,
lighting and more to lower energy use. Ernst & Young, in a far younger building, now joins that group. Meanwhile, the city’s largest commercial landlord, SL Green Realty Corp., is also on board. It expects to finish retrofitting four of its Manhattan buildings with 8,000 LED lamps by the end of the month, having completed a similar effort in its suburban office properties back in the spring. In retrofit projects like these, installation can proceed quickly without the tenants moving out, said Zia Eftekhar, chairman of Philips Lighting North America. which was installed around the structural footprint for the previous florescent and halogen lighting. The effort’s quick payback also helps. Mr. Eftekhar placed the annual rate of return at 50%. And then there are the government incentives to be considered. Of the $2.5 million total that SL Green spent on its two LED installations, it expects to receive $200,000 back from state and utility incentive programs. That cash comes on top of projected savings of $750,000 a year, which are shared by tenant and landlord, according to Jason Black, director of sustainability at SL Green. Savings extend beyond paying smaller bills to the utility companies. Unlike even efficient compact florescent bulbs, LED lights rarely need replacing, which cuts maintenance costs on both labor and materials.

LEDs Cut Rooms To Go Energy Use Up To 45% Per Store


Furniture company Rooms To Go has converted 115 of its retail stores to LED lighting, reducing energy use an average of 35-45 percent in each store.
The switch to energy efficient 16-18 W LED track lamps from the 60 W halogen track lamps previously in use by the retailer started in 2010. Rooms To Go expects a project investment payback in less than 12 months.
Rooms To Go has also further reduced energy consumption by selecting a wider optical beam-spread for the LED lamps, using a 25-degree angle instead of the 12-degree angle employed for the halogen lamps. This change has allowed the retailer to decrease the number of lamps per store by as much as 10 percent, resulting in further energy savings. And since the LED lamps produce less heat, a decrease in air-conditioning demand has contributed to increased energy efficiency as well.
Rooms To Go worked with, an energy management company, to take advantage of more than 16 utility rebate incentive programs to help cover the initial cost of switching to LED lighting. Using Energy Star Certified LED lamps helped in the rebate application process, the company says.
More than 45 Rooms To Go store locations were awarded rebate program incentives for deploying energy efficient LED lighting. Participating utility partners include: Progress Energy, city of Austin, Duke Energy, Electric Power Board of Chattanooga – TVA, Middle Tennessee Electric Corp – TVA, Nashville Electric Service – TVA, Knoxville Utilities – TVA, Gulf Power, Georgia Power, CenterPoint Energy, AEP Texas, Lakeland Electric & Water, Pineville Electric, South Carolina Electric & Gas, and Gainesville Regional Utilities, CPS Energy.
According to Yolanda Slade, project manager for the CenterPoint Energy Commercial Standard Offer Program, which provided Rooms To Go with its single largest utility rebate, the conversion to LED lighting will also benefit utility companies. Lower energy consumption at the site means less stress on the electricity grid, which helps utility avoid building new power plants.

Portland Gets LED Streetlights


January 4, 2013 by Linda Hardesty

In February, Portland General Electric will begin switching 25,000 of its high-power sodium lights to more energy-efficient LEDs.
Five counties and 47 cities are slated to get the lights in 2013 and 2014, with Clackamas County, including Portland, getting them first, according to Oregon Live. Following its regular light-replacement schedule, PGE will then install LED lights in these cities: Oregon City; West Linn; Lake Oswego; Milwaukie; Wilsonville; Molalla; Gladstone; Sandy; Estacada; Barlow; Johnson City; and in unincorporated areas.
PGE is able to afford the retrofit with the help of federal grants. In December, the Oregon Public Utility Commission approved the replacement of the lights, which comes at no cost to the municipalities. The new bulbs are expected to use about 60 percent less energy.
Other cities switching to LED streetlighting include San Francisco, the Borough of Tarentum in Western Pennsylvania, and San Antonio, Texas.
There are differing views as to whether the whiter light of LEDs is an improvement. Some claim the LEDs cause more light pollution and the white light is harder to block with curtains and shutters. But others claim the LEDs make it easier to see detail such as road signs, as well as stars in the night sky.

Pet Retailer Installs LEDs


Virginia pet retailer Care-A-Lot Pet Supply installed more than 200 indoor and outdoor LED luminaires and poles and digital controls in its new 20,000-sq-foot facility in Virginia Beach, Va.
A combination of LED lighting and controls work together to light the store with reduced energy usage. It is estimated the store will save $5,000 annually in energy costs compared to typical HID and fluorescent lamp sources.
Challenges included lighting a space and merchandise effectively with 30-foot-high-ceilings, as well as achieving optimum lighting and minimal glare for the aquarium displays. On the exterior, Care-A-Lot needed a solution to provide lighting in its large parking lot, while minimizing light pollution to the neighboring residential community.
RT5 volumetric recessed lighting fixtures integrated with ceiling and wall controls from Sensor Switch were installed in the veterinary exam rooms, kennel rooms, washrooms, offices, break rooms, hallways and restrooms. For aesthetics and energy savings, Care-A-Lot installed LED downlights as well as recessed LED luminaires to minimize glare on aquarium tanks.
On the exterior, LED luminaires help keep light within property lines to eliminate light spill and light pollution in the neighboring residential area.

Atlas Box Reduces Energy Consumption by 55%


February 6, 2013 by Linda Hardesty

Atlas Box & Crating Company and Groom Energy are implementing multi-measure energy efficiency retrofits at two Atlas facilities totaling nearly 1 million square feet, in Sutton, Mass.
Collectively, the upgrades will reduce the total energy consumption at these locations by 1.25 million kWh or 55 percent of their total energy consumption.
Atlas engaged Groom Energy to perform building energy assessments looking for energy savings opportunities. Following their recommendations, Groom Energy engineers completed upgrades in compressed air, LED lighting and vending machine energy controls. Atlas and Groom Energy are next planning HVAC related improvements that include adding variable frequency drives to ventilation systems and intelligent controls for packaged rooftop units.
For Atlas’s interior warehouse lighting, installed intelligent LED lighting, replacing existing fluorescent lighting that had no control system capabilities. The new system enables occupancy-based lighting in both facilities, reducing energy by operating only when necessary and enabling Atlas to track and manage the system through Digital Lumens’ LightRules software.