Wednesday, August 27, 2014

Gigantic 'Energy Duck' Could Generate Solar and Hydro Power for Copenhagen

The Energy Duck is a submission to the Land Art Generator Initiative (LAGI) 2014, this year held in Copenhagen, Denmark. Designed by the London-based team of Hareth Pochee, Adam Khan, Louis Leger, and Patrick Fryer, the iconic and engaging public is a a

The Energy Duck is modeled on the common eider duck, which is found in the waters of Copenhagen. Unfortunately, the eider’s breeding habitat is at risk from the effects of climate change, so the team decided to use its form to raise awareness of the local impacts of a global issue. The appealing, 12-storey high sculpture is proposed to float in the waters of the city’s harbor. It would be constructed from a lightweight steel frame, with very lightweight steel supporting a skin of photovoltaic panels and dummy panels.

Some of the electricity generated by the low-cost, off-the-shelf PV panels would be stored in the form of gravitational potential energy via water pressure. That is, energy is stored by virtue of the difference in water heights inside and outside the duck. The team states: “At night, when there is no solar radiation, the water pressure can be released through hydro turbines within the duck’s belly providing renewable electricity at all times. The floating height of the duck is an indicator of the amount of city-wide energy use relative to the renewable generation.” Both the solar- and hydro-generated power produced would be fed to the city grid, as per the requirements of the competition, and the energy yield would be 75 percent of that of a fully optimized solar farm on the same site. At night the duck would be lit with very low power LED lamps that change color, with the color pattern undulating in a rhythm proportional to the output of the hydro turbines.

Visitors to the sculpture would be able to move around inside the duck through an enormous honeycomb mesh of lightweight steel. Above would be the pattern of a mesh of PV panels in silhouette, backlit by light streaming in through the gaps. Below, visitors would be able to see the sea water rising and falling within the pressure storage tanks. Of their submission the team states: “Often the prospective negative environmental effects of climate change, brought about by excessive CO2 emissions can seem a removed and distant issue. Energy Duck frames the issue of climate change, ecology and the importance of renewable energy in a local context.”

http://inhabitat.com/conceptual-energy-duck-produces-solar-and-hydro-power-for-lagi-2014-in-copenhagen/

U.S. Lighting Company Cree Invests in Another Chinese LED Manufacturer

Cree (NAASDAQ: CREE) and Lextar (TAIEX: 3698) have announced a business relationship in which Cree will invest in the Taiwan-based LED manufacturer and will source LEDs from Lextar for use in future solid-state lighting (SSL) products. Cree will purchase 83 million Lextar shares and will assume 13% ownership in the company while Lextar will get access to Cree intellectual property and to Cree Lighting as a customer for its LEDs.
 While the summer has been relatively quiet in terms of new LED product announcements, the business side of the sector has been quite busy. In July we saw Epistar acquire Formosa Epitaxy (Forepi) despite the fact that Epistar rival Sanan Optoelectronics owned a large share of Forepi. That acquisition apparently was driven by Epistar's need to ramp capacity amid growing demand for LEDs from the general lighting sector.
The Cree and Lextar agreement could be driven both by capacity concerns at Cree and by the fact that Cree has not invested heavily in traditional mid-power LED product lines. Cree has announced a number of very-small LEDs such as the XLamp XB-H that came to market in March, but the devices exhibit high-power performance and are packaged in high-reliability yet expensive ceramic.
While Cree has insisted that ceramic-packaged LEDs are the best fit for lighting, there are clearly applications such as linear fixtures that are a good match for mid-power LEDs in either plastic or hybrid packages that bring some of the reliability benefits of ceramic. With Cree expanding its presence in the end lighting market, the need for a mid-power source for some products is an expected development.
"We are excited to be strengthening our relationship with Lextar to enable growth in LEDs and lighting," stated Chuck Swoboda, Cree chairman and CEO. "Working with Lextar to supply high-quality, mid-power LED chips enables Cree to focus its resources on the high-performance, high-power LED chips that differentiate Cree LEDs in the market. This approach provides the operational and financial flexibility to help Cree achieve the best return on our people and invested capital."
For Lextar the benefits of the relationship are perfectly clear. The company gets capital that can help it expand production. And the Cree intellectual property cross-license will prove important to the company serving lighting customers other than Cree.
"Lextar has established a strong technology position and customer base in the mid-power back-lighting LED segment, while Cree has had outstanding performance in the high-power LED component and lighting markets," said Dr. David Su, chairman and CEO of Lextar. "We are very excited about this new cooperation with Cree. We strongly believe this new collaboration will increase the competitiveness of our products and technology, enabling both companies continued growth in the LED lighting market. Furthermore, the cross license of LED chip and component intellectual property will afford both Cree and Lextar the benefits from our product and technology development, thereby strengthening our mutual competitiveness in the global LED industry."
Lextar and Cree both just announced quarterly financial results and once again Cree's revenue was up significantly. Lextar also announced an 18% increase in revenue and said it had overcome manufacturing roadblocks that had gated growth and the company pledged to expand capacity.
Cree's investment will help enable the Lextar goal of expansion. Cree will pay NTD 30 ($1) per share for the 13% stake, equating to an $83 million investment. The companies said that both boards have approved the deal and it is expected to close by the end of the year.

Thursday, August 21, 2014

Solar Boom Drives First Global Panel Shortage Since 2006

Ehren Goossens, Bloomberg 
August 20, 2014

 The solar industry is facing a looming shortage of photovoltaic panels, reversing a two-year slump triggered by a global glut.

Wednesday, August 20, 2014

Perfect Example of Choosing the Wrong LED Solution in Wisconsin

The ThedaCare Health System located in Wisconsin has been a leader in sustainability initiatives and late last year also recognized that outdoor area lighting at a number of its facilities were in need of an upgrade -- both due to excessive maintenance requirements and uneven light quality. The organization has performed a thorough evaluation of LED lighting and upgraded two of its facilities to solid-state lighting (SSL). The healthcare provider projects $40,000 annually in electrical and maintenance savings based on its first outdoor SSL projects.
The ThedaCare outdoor areas and parking lots have been lit by a mix of metal-halide (MH) and high-pressure sodium (HPS) lighting
BEFORE
Wisconsin healthcare provider slashes energy costs with LED retrofit

AFTER
The ThedaCare outdoor areas and parking lots have been lit by a mix of metal-halide (MH) and high-pressure sodium (HPS) lighting with the result being non-uniform light levels and disparate color temperatures as the top photo illustrates. The light quality caused concerns across the organization. "Security staff was very concerned about light levels for safety," said Steve Jencks, construction project manager for ThedaCare. "They wanted to make sure the new lighting would provide better visibility both on-site, as well as through security cameras."
And of course energy conservation was also a concern. "From my perspective, healthcare organizations must lead the way in reducing fossil fuels," said ThedaCare sustainability leader Paul Linzmeyer. "The first thing we are working on is to reduce demand. If we reduce demand, that is less pollution going into the environment. While some of sustainability work is about saving money, it is really about reducing the amount of greenhouse gases going into the environment. Healthcare's first obligation should be to do no harm to our environment -- for health and safety reasons."
The organization turned its attention to two of more than 30 hospitals and facilities in Wisconsin. The Theda Clark and Appleton Medical Center (AMC) have large parking lots measuring 861,000 and 916,000 ft2, respectively. Moreover, the Theda Clark facility is adjacent to a residential area and had generated complaints about light pollution.
ThedaCare partnered with Elan Lighting to evaluate the impact that a lighting retrofit might have o the operational costs. The analysis revealed that lighting would deliver relatively quick return on investment (ROI) and identified LED lighting as the most efficient option. "LEDs are the best solution right now for lighting in general," said Mark Zelten, application and sales manager at Elan Lighting. "It is certainly going to be the light source for decades to come. LED was the way to go for the Theda Clark and AMC campuses, and we wanted to maximize their investment."
Still, the organization wanted assurance that the SSL option would deliver on its quality goals. ThedaCare and Elan Lighting worked together to select the Acuity D-Series LED luminaires from the Lithonia Lighting brand. The project primarily relied on the area lights for parking lights although it also includes lesser numbers of D-Series wall packs, flood lights, and parking garage luminaires.
The first two projects will deliver numerous benefits. The lumen output and uniform beam of the LED products allowed the organization to reduce the total number of luminaires. For instance, at the Theda Clark facility, 60 LED luminaires replaced 84 legacy fixtures.
Still, the lighting is much improved. "You can see a vast difference between newly lit lots with a more even distribution, and the yellow from the old lights that cast an ugly glow," explained Jencks. "When we have foggy, frosty mornings, you can really tell the improvement of the LED."
The light-spill problem was also mitigated. "The new lighting in the parking ramp at the AMC campus looks very nice at night," said Jamie Coenen, a ThedaCare security officer at AMC. "The new lighting is not too bright for the neighboring houses and makes it so much easier to see inside the ramp. The lights are mounted high enough that it does not affect your sight or disperse light outside of the ramp."
In the Theda Clark project alone, the healthcare provider projects that its will save $89,500 in energy costs and $58,600 in maintenance costs over ten years. Meanwhile, the LED lighting is projected for 10,000 hours of life. The projected ROI is five years.

Friday, August 15, 2014

Meet Harley Davidson's First Electric Motorcycle


Harley-Davidson Project Livewire 
Courtesy Harley-Davidson

harley-04


For 111 years, the Harley Davidson has been known for many things—freedom, leather, and, most of all, its rumbling V-twin engine. This summer, Harley took a step in a new, quieter direction when it introduced Project Livewire, its first battery-powered bike. The Livewire has a lightweight aluminum frame rather than the classic tubular-steel version, and a 74-horsepower electric motor. With nearly 100 percent of its 52 foot-pounds of torque available instantly, it can hit 60 mph in under four seconds. 
Several niche companies have marketed electric bikes over the past few years, but Harley’s entry into the market is telling. The manufacturer sees the technology as a way to court new riders. This fall, before the motorcycle goes into production, Harley will take it on a tour of 30 dealers on both coasts to get feedback. If customers approve, the company will sell the bike, or some version of it—a move that could shape the industry for years to come. What remains uncertain: Can anyone still rock a bandanna on a plug-in?

Harley-Davidson Project LiveWire

Engine: Clutch-less electric motor
Horsepower: 74
Fuel economy: n/a
Price: n/a
Range: 53 miles
Charge time: 3.5 hours from a 220-volt outlet
Top Speed: 92 mph

Car News You Should Care About

1) Ford will add adaptive steering into some models in 2015. The technology, thus far limited to luxury vehicles, varies the steering ratio with the speed, making parking easier and adding stability at high speeds.
2) Toyota has donated 208 used Camry Hybrid batteries to Yellowstone National Park, which when paired with solar panels and onsite micro-hydro turbine systems will power a cluster of five remote outbuildings. 
3) San Francisco startup Cruise Automation is making a $10,000 sensor system (due out next year) that mounts to the roof of Audi A4 and S4 sedans, and enables semi-autonomous driving on highways.
4) Honda has started using 3-D visualization technology co-developed with tech firm 3DX CITE for crash simulations. Originally created for animated film, the software also allows for easier design changes.

This article originally appeared in the September 2014 issue of Popular Science.

http://www.popsci.com/article/cars/meet-harley-davidsons-first-electric-motorcycle

Thursday, August 14, 2014

Not All LED Lights Are Created Equal

This article is an introduction to the world of LED Lighting and Controls. I will follow-up with more articles specific to various lighting and control issues that you may have in your environment. The technology discussed is truly leading to a sustainable lighting environment guiding away from the consumption model.
In 2007 anyone who could put a white LED onto a Printed Circuit Board tried to sell a light bulb replacement. Having been involved with laser diode design and in specific blue lasers in their early stages I had a high curiosity whether those devices could replace the light bulb or fluorescent tube.
Like others we attempted to make a light bulb replacement only to find out that the cost of the technology is still very high and in order to justify that cost the device would have to be more efficient than a fluorescent tube and keep its light output for a very long time to get a return of investment.
Deeply understanding the quantum physics involved I knew that the junction where the light is created, that is deep in the solid state structure, had to be kept rather cool to not get damaged over time by heat and to perform with high-efficiency.
When we saw all players not to care about efficiency or keeping their devices cool but try to develop a light bulb with a slightly longer life but not too much longer, the opportunity arose to make a very long-lasting light fixture. We are talking 10 years plus without light degradation or change in color.
Fortunately we also came from the networking arena so we developed a protocol of communication between the light fixtures that allows uniform dimming over an infinite number of devices by one low-cost dimming device.
Imagine that in future a supermarket does not have to change its' light fixtures every 3 years but can leave them in place for 15 years or more, no more light bulbs or tubes to be replaced and have no light loss.
Oh by the way, LEDs do not have Mercury like fluorescent tubes and "Energy Saving" lamps. The wattage on the fixture is the actual wattage consumed unlike your "Energy Saver" bulb that consumes between 30% and 50% more energy than advertised.
To further cement commitment to the environment manufacturers should recycle all their product as long as the user finds a way to get it to a recycling center and guarantee to pay back to the customer a recycling value on return.
However, it is difficult for the non-specialist person to understand that not all LED devices are created equal and to recognize what is marketing hype and what is real. The DOE or Energy Star are not helping as they lag years behind technology and generally support the consumption model brands rather than lasting and really efficient technology to the point of being hostile to new and better technologies.
Klaus Bollmann is a 30 year veteran in energy conservation, resource saving innovative products for a sustainable environment. Click the link If you are interested in ActiveLED high performance lighting products. All parts of ActiveLED light fixtures are 100% recyclable and in fact the aluminum used in ActiveLED lights is 100% recycled aluminum.


Article Source: http://EzineArticles.com/7104043

LED lamps poised for steep growth

Off-Grid Lighting and DC Systems for Performance During and After a Disaster

Up and until now there were no good lighting solutions that could survive a shock, vibration or prolonged periods of being in high humidity environments or submerged in water, yet fully functional once the adverse conditions subside.
Conventional Lighting
Conventional lighting often use metal-halide or some form of mercury laden bulb or tube technology that can easily break due to vibration, concussion or shock. As a result conventional lighting is more likely to be not available in an emergency in addition adding insult to injury poisoning the environment, humans and animals nearby with unhealthy amounts of mercury. Conventional lighting requires larger generators or grid power to operate.
LED Lighting designed for Emergencies and Disasters
State-of-the-art LED lighting can offer a real alternative as the best performing technology during disasters. When designed appropriately, certain LED lighting fixtures lend themselves to be more robust light fixtures outperforming any conventional lighting technology, during and after a disaster.
Unlike any other conventional lighting technology, LED light sources that are appropriately protected, do not suffer from vibration, power fluctuations or humidity. They are able to start immediately at extreme temperatures from -55°C (-56°F) to +60°C ambient temperatures.
As LED light sources are generally driven by low voltage power drivers they lend themselves to be driven from DC power sources like batteries, solar panels or wind mills in addition to being driven from grid power or conventional generators. Due to their much lower power consumption they can provide adequate lighting for a longer period when driven from emergency power sources like generators or batteries.
LED lighting systems can be designed so that they do not lose any light-output with use nor do they change their correlated color temperature (CRI). Although, many main stream lighting brands design for obsolescence, some less mainstream players do provide 10 year warranties on their drivers and guaranteed light output without restrictions, those will be the best lighting fixtures to use for emergency and disaster proof lighting.
Of course quality products that are made from better heat transporting materials are more expensive to make, yet their return of investment (ROI) is normally better than a conventional built-to-fail and therefore cheap lighting product. The better ROI is also due to the high cost of identifying, monitoring and replacing failed lighting bulbs or fixtures which obviously is not required for a lasting and highly reliable light fixtures.
Most importantly in a disaster or after energy sources may be scarce, LED lighting designed for the purpose can run four times longer from a generator producing the same light output of conventional technology. Conventional technology is not suitable to be run off batteries while LED technology can be run with 5 times the efficiency compared to conventional lighting that is run from batteries.
Conclusion
Until a better and even safer way to produce light more efficiently comes along, one can make the now reasonable assumption that LED lighting will be the lighting technology for some time to come.It makes sense to invest into the higher performance LED lighting which saves between 15% and 50% more energy compared to its cheaper and disposable LED equivalent and will perform significantly better during and after a disaster than any other conventional lighting.
Every organization wanting to ensure staying in business through and after a disaster has struck or municipalities that have to provide services during or after a disaster need to look into the latest technologies that can give them the edge on recovery. ActiveLED lighting is better suited to sustain vibration, shock and humidity than conventional HID, Fluorescent or Induction Lighting. ActiveLED can run directly off 48V batteries or DC sources as well as a wide range of grid power. See http://www.activeLED.com


Article Source: http://EzineArticles.com/7789488

Make Your Business Ready for an Electricity Blackout

30 years ago, everyone hoped that the world would get more and more advanced and more politically stable. Today it looks as there has been a lot of technological advancement but the supply of energy is getting more uncertain.
This is partly because the world dynamics have presented us with a much more destabilized oil supply and governments have an interest in increasing taxes on energy and water not because there is a severe shortage of resources but to feed their ever-increasing spending habits.
One strategy for every small business to consider, when you own your habitat or intend to remain at location for the next 10 plus years, is to get more independent and reduce the dependence on grid delivered energy.
With Solar Panels at rock bottom prices and battery technology ever improving, today's technology allows to move to operations largely powered by alternative energy that use the grid as a backup. For example a Light Fixture that has 48 Volt DC and 100 to 277 Volt AC grid supply can be connected to both systems, a Battery Backed Up DC system supplied by solar or wind energy, and the grid.
Why 48Volts DC and not any other voltage?
When deciding what the best DC voltage is to use around your home or factory we came to the conclusion that it had to be:
  • within the internationally accepted Low Voltage Directive (LVD) and hence below 75 Volt and
  • it also wants to be the highest safe voltage so as to reduce cost of copper wiring. When running with half the voltage (24 Volt) the current requirement would double and with it the conductor size, doubling the cost of the wiring infrastructure.
Therefore the most practical and safe voltage is 48 volt nominal which happens to be 60 Volt fully charged without an electrical load and still be below the 75 Volt of the LVD.
There are suggestions in the Server Farm arena to use much higher DC voltages which I recommend against in a small environment, mainly due to their dangerous nature to electricians and users. Their attraction lies in much lower wiring cost, however the safety factor should be given the higher consideration.
What else is essential?
Off-the-shelf affordable and canned Energy Management Systems are an essential part of using alternative energy wisely. They allow optimal management of energy while providing maximum user convenience by using occupancy, temperature and daylight sensors to avoid using energy when it is not required.
Can Air Conditioning run off DC?
Yes it can. There are solid state air conditioning systems that can run straight off a 48V DC source. They often do require a water loop to transport heat in and out of the building and may be more practical on a re-model or new-build rather than a straight retrofit. Those systems also rely on heavily insulated rooms as they typically do not have the overcapacity of conventional air conditioning systems.
Klaus Bollmann is a 30 year veteran in energy conservation, resource saving innovative products for a sustainable environment. Click the link If you are interested in Ringdale DC Systems high performance 48V DC products or ActiveLED 48V DC capable lighting systems.


Article Source: http://EzineArticles.com/8028856

Ringdale Debuts Expanded Line of ActiveLED Recessed Can Lights

GEORGETOWN, TX – Ringdale, Inc., an innovator of solid-state technology and manufacturer of commercial LED lighting fixtures, today introduced the ActiveLED® CLP4 Series 4-inch (98mm) recessed can light. As the newest addition to the ActiveLED portfolio of recessed fixtures, the smaller CLP4 is ideal for new or retrofit applications and rounds out the Hospitality and Retail Spot Light portfolio of 60mm, 135mm, 6-inch, 7.25″ and 8″ energy-efficient LED fixtures.
“Can lights are a mainstay in lighting and can be found in just about every commercial, municipal and residential building. At Ringdale, we are continually rolling out new products to meet our customers’ requirements in form and function,” said Klaus Bollmann, President and Founder of Ringdale. “By expanding our line of recessed can lights, customers can convert to long-lasting, sustainable ActiveLED technology throughout their facility without compromising variety of delivered lumens, color temperature, and management controls.”
The ActiveLED CNP4 light consumes 50-85 percent less energy than conventional lighting and additional energy savings can be achieved with the optional lighting management. ActiveLED CNP4 is available in 6-watt or 12-watt versions with a selection of CCT2700K, CCT3500K or CCT5500K color temperature, dependent upon the application. Machined from solid Aluminum billet for maintenance-free operation, the CNP4 is aesthetically pleasing and lends itself to applications where the fixture is also on display.
The device can be driven by any of Ringdale’s UL-Listed Class-II programmable and dimmable LED drivers using Ringdale EDSaP dimming technology. Multiple units can be driven by one power source as well as seamless dimming over multiple power sources using EDSaP is a unique feature of Ringdale LED drivers for ActiveLED fixtures.
ActiveLED CNP4 Light — like its predecessors — carries the ActiveLED’s 10-year Performance Warranty that ensures L90 for 90,000 hours, a warranty protecting the customer’s investment with a no light loss guarantee made possible through patented design and core components engineered and manufactured by Ringdale in the United States. Ringdale produces over 80 application specific ActiveLED light fixtures that are currently the most energy efficient lights in each of their classes.
Availability: Ringdale’s ActiveLED products are available directly through Ringdale or approved resellers. Each ActiveLED fixture includes the 10-year ‘no light loss’ performance warranty.
About Ringdale
Ringdale, established 1986, focuses on helping organizations incorporate green savings into their business environments. Ringdale provides ActiveLED® luminaires with patented, solid-state lighting control and thermal management technology. Ringdale, Inc. is based in the United States with offices in the United Kingdom, France, Germany, Japan and Singapore and is part of the Network Technology PLC Group of Companies. For more information on ActiveLED Lighting, contact Ringdale at 512-288-9080. www.ActiveLED.com.
EDSaP stands for Ringdale’s patent pending ‘Electrical Device Signaling and Protocol’.

Ringdale® ActiveLED® Brings Maintenance-Free LED Lighting to Religious Buildings Struggling to Manage Energy and Repair Costs

ActiveLED Lighting Eliminates Scaffolding and Other Issues Common to Maintaining Light Levels in Places of Worship
PR Newswire
GEORGETOWN, TexasMay 29, 2014 /PRNewswire/ -- Ringdale®, Inc., Texas-based manufacturer of USA-made ActiveLED® luminaries, announces increased growth of its religious buildings customer base due to the lighting's proven energy-savings and near elimination of maintenance. ActiveLED luminaries provide beautiful illumination in multiple color temperatures with all the advantages of intelligent controls, efficiency, and customization. Since entering the LED lighting market in 2007, ActiveLED has seen a surge of new installations in places of worship: churches, synagogues, and mosques lighting the sanctuary, office, reception, landscape, architectural features and parking areas. Customers attribute the 10-year No Light Loss warranty as a primary contributor to their decision to buy ActiveLED.
ActiveLED is the only line of LED lighting worldwide to offer the unique 10-year warranty that covers power source, light loss and color retention. Supported by Ringdale's patented technology, the 90,000 lumen hour warranty eliminates the risk many buyers are concerned about during the selection process. 
"The architecture in religious buildings often has striking high ceilings, decorative alcoves, and other features that present a tremendous maintenance challenge. The usual process of replacing bulbs in cathedral ceilings while you have pews or chairs requires hazardous and expensive scaffolding," states Klaus Bollmann, Ringdale president. "ActiveLED reduces that burden and related safety issues to a minimum."
Ultra-violet rays and heat are a threat to buildings that house relics, works of art, and other articles of significance.  This is an issue not commonly thought of when selecting fluorescent, HID, HPS, or incandescent. ActiveLED is free from hard UV and produces very nominal heat whereby preventing scorching or fading. Due to the lower heat emitted, it also reduces the cost of a building's cooling.
ActiveLED is ideal for new and retrofit projects. The ActiveLED portfolio has over 120 interior and exterior luminaries, in addition to the ability to retrofit historical fixtures. St. Peter's Roman Catholic Church in Colorado has been a customer since 2010. Reducing energy demand has proved beneficial for the 105-year-old church in addition to improving light quality.     
Jason Sikes, a deacon at Andice Baptist church in Texas said, "We were pleased at how Ringdale ActiveLED lighting was bright yet not as intrusive to the eye" Sikes recalled, "It was quite different and better than any other lighting". The committee was also surprised at the return on investment that LED lighting will give them over conventional lighting with virtually no maintenance costs. A calculation of the LED lighting's ROI estimates it will save the church 75% in energy costs over a 10-year period.
ActiveLED is available directly from Ringdale or its network of resellers. For more information, visit the company online at www.ActiveLED.com.  
About Ringdale
Ringdale, established 1986, is an expert in solid-state technology and focuses on helping organizations incorporate green savings into their business environments. Ringdale provides ActiveLED® luminaries with patented, solid-state lighting control and thermal management technology.  www.ActiveLED.com