About Us

Meet the Team

TEDxPSU 2019 Speakers

Past Talks


Lighting -- an evolving and efficient pathway to cleaner air

Robert Davis,

Originally posted on May 05, 2014

Sustainability Environmentalism Energy

Artificial lighting consumes ~ 20 percent of the electricity used in the USA and most other countries in the developed world. The efficiencies in energy used to "burn" incandescent and fluorescent bulbs are ≤5% and ≤35%, respectively; the remainder of the energy is converted into useless heat. Coal-fired electricity-generating plants in the USA currently emit 110,000,000 tons of CO2/year just for lighting -- the equivalent in weight to ~73,000,000 family cars that would encircle earth ~9 times. The two billion people without access to electricity use diesel fuel and paraffin- and fat-based lighting schemes that are ≤ 2% efficient, provide only 1% of global lighting and are responsible for 20 % of lighting-based CO2 emissions in the amount of 200,000,000 tons/year (~133,000,000 family cars equal in total length to 1.7 trips to the moon). The introduction and continuing evolution of more efficient (≥65%) light-emitting diodes (LEDs) are increasing globally both visibility and commercial opportunity. A new lighting technology, quantum dots (QDs), with efficiencies of ~80% is now being used in ultra-high definition televisions and electronic book readers and soon in computer and telephone displays. QD-based LEDs are a potentially new technology that will allow us to efficiently extend the daylight into the night.
In the spirit of ideas worth spreading, TEDx is a program of local, self-organized events that bring people together to share a TED-like experience. At a TEDx event, TEDTalks video and live speakers combine to spark deep discussion and connection in a small group. These local, self-organized events are branded TEDx, where x = independently organized TED event. The TED Conference provides general guidance for the TEDx program, but individual TEDx events are self-organized.* (*Subject to certain rules and regulations)


A huge thank you to our partners who make all of this possible!

Alumni 26fb1ac5dd6e6937eae340ad3d5c09e93f60c2efd7b0e347065f8557f6bfbbca
Shc 61e3f1ee0cab5c54591ca90e492432f78a7aa55e7a4743018bc39f661857bbf8
Engineering 653b130fb84744c61b8b3899be503f089986fb312c9778156c6f8c403bd51f11

Go2gro 5c5a39d4e35b9026a3fd6e7dbc94967185969b6ab081a66a1655f9f1c9b6ac1a
Cpcvb 881d7acd21eda69611e1926039a19baae9033b648e186708eae8f18f9346dab4

At TEDxPSU, hosted at Penn State University in State College, PA, we combine TEDTalk videos and live speakers to spark deep discussion and connection. TEDxPSU is operated under license from TED.

Questions? Comments? Contact us at info@tedxpsu.com.

© 2016 Creative Jam Design