Finally a government green program that is not a waste of
money. The US DOE reported today that
Los Anegeles has undertaken the largest project in the world to replace old
street lamps with new light emitting diode (LED) ones. Here is the US DOE press release.
By Jim Brodrick,
lighting program manager
The world's largest
light emitting diode (LED) conversion project to date is under way in Los
Angeles, California.
In the project’s first
phase alone, the city retrofitted over 141,000 streetlights, reducing energy
use by 63% and saving the city $7 million a year in electricity costs. The
project is expected to reduce carbon emissions by 47,583 metric tons annually,
which is equivalent to removing about 10,000 cars from Los Angeles roadways per
year.
Lessons learned from
this project were discussed during the Energy Department’s Municipal
Solid-State Street Lighting Consortium (MSSLC) webinar in September. More than
560 attendees gained insight from Ed Ebrahimian, director of Los Angeles’
Bureau of Street Lighting. To date, more than 370 municipalities, utilities,
and government agencies have signed on as primary members of MSSLC. For the
complete story, see the EERE Blog.
I say Bravo LA. I wrote my book on energy and sustainability
in 2003, ten years ago. In my book I
opined that LED technology would become a widespread methos to lower power consumption
in lighting. Ten years ago we had just
started to covert traffic lights to LED.
Now cities around the world are converting street lights. Home owners are also switching to LED lights.
LED’s are solid state
devices. Just as the transistor (solid
state) replaced vacuum tubes in radios in the 1950s and just like LCD TVs
(solid state) replaced tube TVs over the past decade, LEDs will replace
incandescent light bulbs in the coming decade.
The US has one very successful company in the LED space. This company is Cree who are located in North
Carolina. Many Asian manufacturers have
entered the LED lighting market and China in particular is making a strong push
into LED manufacturing.
The LED’s are
fabricated on sapphire wafers.
Integrated circuits are fabricated on silicon wafers, but manufacturing
methods are similar. The emerald is the
green stone but the sapphire is truly the green precious stone. Another US company GT Advanced Technology has
leading edge technology in ultra-pure sapphire crystals. Apple just announced a very large deal with
GT to supply Apple with unique crystals.
My guess is that Apple needs curved sapphire crystals for their new
curved handheld devices. Yes the flat
iPhone and the flat iPad are to be replaced by curved devices that are far
easier to hold.
The green machine
applauds companies like Cree and GT Advanced Technology that actually offer
green products that do help the world.
They don’t get the press that Tesla does but they deliver green goods
that are not pyrophoric. It certainly
looks like Tesla Motors has a lot of explaining to do about their self-igniting
Model S that only achieves 22 miles per gallon equivalent if the real world
data for power generation and distribution efficiencies are used. In ten
years time Tesla will be long forgotten and the LEDs installed on LA streets
will still be burning bright.
This news from
Digitimes
LED lighting market value in 2014 to
reach US$17.8 billion, says LEDinside
Press release, November 20; Alex Wolfgram, DIGITIMES [Wednesday 20
November 2013]
According to data from LEDinside, the LED lighting market
value in 2014 will come to US$17.8 billion, and the total shipments of LED
lighting products will reach 1.32 billion units, representing 68% on-year
growth.
LEDinside pointed out that the global
LED lighting product replacement tide is caused by falling LED product prices.
With replacement lamps being the most obvious, bulbs and tubes are the most
popular ones in the market, which account for 38% and 24% of LED lighting
product demand in 2013, respectively. In addition, the demand for LED
luminaires in the future will gradually rise, the firm said.
According to the data, the growth rate of LED lighting
market demand volume in North America is expected to reach 72% in 2014. In
addition, in Latin America the LED lighting market is growing rapidly,
especially the LED commercial lighting market, with the growth rate of LED
lighting market demand volume expected to reach 64% in 2014. The growth rate of
LED lighting market demand volume in Europe is expected to reach 69% in 2014.
LEDinside also estimated the growth
rate of LED lighting market demand volume in China to reach 86% in 2014.
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