Posts Tagged ‘GE’

Weekend Links

October 14, 2011


Creating a new business model for utilities: a white paper 

* Texas Instruments now offers new integrated circuits targeted at AC power lighting applications such as LED retrofit lamps.

* GE enters the LED retrofit market. The LED chips seen in their video are not GE products; the company sold their LED division years ago.

* Hydraulic fracturing interest groups, both pro and con, have set up a site where you can track individual wells.


* Lessons we learned in Physics 3C explain why those CERN neutrinos really did not go faster that C.

Lighting and Wind

June 10, 2009



In the May 13 post, reference was made to NYSERDA Existing Building Program providing funding for lighting upgrades. This is on a per kWh saved per year, a one-time payment. The rebate for Orange and Rockland (Con Edison) customers is $0.12/kWh saved/year, for the first year only.

In response to my question, yesterday the agency ConEd PM clarified the links for the spreadsheets required for the calculations:

“A description of our electric incentive program is here:

“You can download the lighting form by clicking on the link under the “lighting” bullet point.


Go here for assistance with calculations.


It is reported today that climate change is having a negative impact on midwest US wind speeds of as much as 10%, negative in relation to wind generation potential.


The photo at the top is taken near shore off Maui. There are 12 GE 2.0 MW turbines on the ridge. Can you spot them? No Photoshop was used, it’s our photo.

Maybe turbines can enhance the landscape, depending on the skills of the design team.


March 6, 2009


Light-emitting diodes (LED) are compound semicondutor devices that convert low-voltage electricity to light. General Electric scientists invented the first application of LED in the 1960s. Unlike conventional lamps that can shatter,  LED are resistant to shock and vibration. The solid-state nature of LED means no filaments to break or moving parts to fail.

The advantages of the technology vary with the application. Features of LED include 90% energy savings over similarly-bright incandescents, lamp-life minimum of 50,000 hours, and excellent cold weather start-up and performance. The disposal issue faced with mercury vapor and fluorescent lamps and ballasts is obviated.

Early applications included traffic signals replacement; the technology offers color rendering choices and significant lamp replacement and energy usage advantages over legacy incandescent traffic signals.

Applications have expanded to include parts for televisions, building interior and exterior lighting, signs, focused retail displays, flashlights, elevator call buttons, commercial and residential fixtures (those changing colored lights in your hot tub are LED), and transportation and street lighting.  The LED industry is estimated to have grown 50% year on year between 1995 and 2004, and for the period 2004-2009 the US market is expected to grow from US$3.7 B to US$7.3 B, the highest growth being in transportation uses (projection courtesy Oppenheimer research).

Use in transportation infrastructure continues, South Korea and Los Angeles, Califonia having recently announced major LED initiatives.

Remote monitoring capability facilitate “smart grid” applications; flashing street lights on the curb will one day signal emergency responders regarding the location of a call.

Photo of exterior fixture