I’m not sure anyone else is saying this, so I will: I think **there is a clear and unambiguous scriptural mandate to reduce our current energy consumption**. Now before you dismiss this post, this author and this blog as just another bible-thumping fanatic, remember that in certain countries, certain political parties profess strict adherence to […]
Here is how you compute the thermal coupling between a room’s indoor temperature and the outdoor temperature due to infiltrations. The equation governing the exchange of heat is as follows: Cair × dT/dt = g × Δ T where Cair is the indoor air thermal mass [J/K], T is the indoor air temperature [K], g […]
Automating buildings costs money. Lots, lots of money. The return on investment (ROI) is usually very low, and it takes a long, long time (on the order of 5 to 10 years) for such an investment to pay for itself. To make matters worse, people who rent the home or apartment they live in have […]
The energy demand of computers—including PCs, peripherals, and corporate data centers—produced about 830 million tons of CO2 in 2007, according to a report by the the Global eSustainability Initiative (GeSI), a group of technology firms interested in the potential impact of information and communication technologies on climate change. But they can also help us save […]
At long last I’ve pasted together the videos taken during by PhD defense. Here they are, raw and unedited. 1/8 2/8 3/8 4/8 5/8 6/8 7/8 8/8
Wattwatt is a user-contributed website related to the efficiency of electrical energy in all its forms. It’s a place to read blog entries, share ideas, and more generally participate in a growing community of energy-conscious people. I got this link through Make magazine‘s blog.
If you can measure it you can control it, and that is also true of your energy consumption. Two energy-monitoring devices have recently been brought to my attention that are not only easy to use, but also to install. The first one is the OWL, and consists of a wireless clip you put around your […]
Philip Greenspun has written a nice report on a MIT meeting whose theme was energy. You can find it here.
CS Lewis called this person the “embarassing enthusiast”. A person very committed and very verbal about your common religion, yet someone who occasionally discredits your own views by advancing weak arguments to support it. What to do with such a person’s views? You cannot oppose them—for that would work against your own. Yet you cannot […]
Top Ten is a well-designed and user-friendly website that carries information on energy-efficient appliances and other equipment. It is mainly targeted at the swiss audience but I am sure most of these products can be found all over the european market. On this site one can also find information on alternative energy sources and pointers […]