Is anyone working on harvesting the energy of lightning? [more inside]
posted on Jun 24, 2008 - 13 answers

I'm a senior software developer, and I'd like to start working in the green energy sector. What are the opportunities in this area? [more inside]
posted on Apr 13, 2008 - 3 answers

I can't stop thinking about fridges and winter. Would it save much energy to freeze gallon containers of water outdoors and put those in the fridge now and then? It's Minnesota winter over here and I want to make the most of it ;)
posted on Feb 21, 2008 - 17 answers

What's the best CFL or similar for recessed lighting? A previous question didn't quite provide the direct recommendation I'm looking for. [more inside]
posted on Jan 5, 2008 - 5 answers

Chemistryfilter: I'm looking for a solution (colliod? emulsion? gel? resin?) of a few inexpensive and non-dangerous ingredients whose composition can be adjusted to create a melting point near to room temperature (and moderate pressures). [more inside]
posted on Nov 6, 2007 - 21 answers

Since December 2006, my electricity bill has shown at least a 1,000 KWH increase over the same period a year ago. We haven't purchased any new appliances, or done anything appreciably different. This month, we didn't use our air conditioning/heating unit at all, and our bill still came in 25% higher (500 KWH) than a year ago. We're at a loss. What could be the reason? We ordered a Kill-a-watt, but till it arrives, we are trying to figure it out. Any thoughts? [more inside]
posted on May 9, 2007 - 34 answers

Would it be feasible (/cost efficient) to put small wind turbines on existing utility poles to generate power? [more inside]
posted on Feb 28, 2007 - 23 answers

I'm interested in exploring options for building a "green" home, and I would like some advice about where to start. [more inside]
posted on Jan 11, 2004 - 17 answers