> Anyone using or considering using a gas turbine instead of diesel to run > their generators? Yeah, we talked quite a bit with Caterpillar, and looked at a bunch of their installations. That's actually Solar Turbines, which they bought. Also, we looked at the Capstone units (www.microturbines.com) for small installations. Both looked like big wins. Both exhaust hot enough to run a thermal transfer unit to take care of the chillers, although on radically different scales, of course. Running full-time on natural gas, they both amortize themselves in 18mos-24mos vis a vis the cost of utility electricity. Obviously the AQMB paperwork for cogen is more of a hassle than for backup, and that's where we sit right now. -Bill