FWIW I purchased a new CAT 125KW diesel genset with a 420 gallon base tank and transfer switch for ~33k last year. I think 10k might be a little low, but not too far off.
Mark > On Dec 2, 2016, at 9:39 PM, Chuck McCown <[email protected]> wrote: > > It is more than a half mile away. Primary build. Not sure they would even > do it as that is at the end of a crappy line feeding a center pivot > irrigation pump and system. Up where I need it everything is underground. > > Right now I am paying about $2K/month at a different site for a similar load. > They really screw you on the demand charge. > I figure I can get a decent $100K NG 3ph generator for $10K. > > From: George Skorup <> > Sent: Friday, December 02, 2016 7:29 PM > To: [email protected] <> > Subject: Re: [AFMUG] generator fuel > > OK, but what would be the cost to have your power co bring 3phase to you? > More or less than a 3-phase generator? Or can they simply not do it? > > On the other hand, what would it then cost you for 3-phase service from said > power co? I know of a couple grain handling sites around here pay about > $1200/mo. But that's cheaper over the long haul than buying, maintaining and > paying fuel cost for a 100kW genset, even NG. > > On 12/2/2016 8:18 PM, Chuck McCown wrote: >> Not bad considering my NG is going to cost half or less than diesel. And it >> will be periodic use, not constant. >> I need to make a boatload of 3 phase 480 where only single phase exists an >> the loads will be highly variable. >> I could use a big ass rotary phase converter but based on the cost of fuel >> alone, I will save money just running the generator when needed. >> Especially true if they charge me a demand charge. >> >> From: Eric Kuhnke <> >> Sent: Friday, December 02, 2016 7:11 PM >> To: [email protected] <> >> Subject: Re: [AFMUG] generator fuel >> >> Looking at it another way, I have calculated previously that the cost per >> kWh for 24x7 power from a diesel generator is in the range of $0.35 to $0.49 >> per kWh. That's including the purchase cost of the generator, maintenance, >> expected lifespan, cost of fuel, etc. >> >> If you want to see prime power examples of diesel used for islanded grid >> power, each town in Nunavut has its own set of diesel generators and tanks. >> There is no long distance transmission setup or inter-city grid. >> >> http://www.qec.nu.ca/home/ <http://www.qec.nu.ca/home/> >> >> >> On Fri, Dec 2, 2016 at 5:57 PM, Chuck McCown <[email protected] <>> wrote: >>> I agree, but my application is primary power, not emergency. >>> >>> From: Eric Kuhnke <> >>> Sent: Friday, December 02, 2016 6:53 PM >>> To: [email protected] <> >>> Subject: Re: [AFMUG] generator fuel >>> >>> I don't think it's fair to directly compare diesel fuel to natural gas, >>> because one is portable in just about any container (in a real emergency), >>> the other is not. >>> >>> http://www.datacenterknowledge.com/archives/2012/10/31/peer-1-mobilizes-diesel-bucket-brigade-at-75-broad/ >>> >>> <http://www.datacenterknowledge.com/archives/2012/10/31/peer-1-mobilizes-diesel-bucket-brigade-at-75-broad/> >>> >>> On Fri, Dec 2, 2016 at 5:49 PM, Chuck McCown <[email protected] <>> wrote: >>>> I am assuming a BTU of fuel will make so many Wh of energy. >>>> >>>> If perfectly efficient 1M BTU =292.3 kWh >>>> That would cost me $35 from the power utility. >>>> >>>> A gallon of diesel is abou $3.25 around here. 139000 btu. >>>> Diesel then is about $23 per 1M btu. >>>> However diesel engines are only 30% efficient so it will cost me $76 in >>>> fuel to make that 292.3 kWh >>>> >>>> If that assumption is approximately correct: >>>> I pay about $7.80 per decatherm in the winter for NG. A decatherm is 1 >>>> million btu >>>> About half that in summer. >>>> >>>> $7.80/.3= $26/293.3 kWh for NG not considering depreciation and maint of >>>> the generator. >>>> >>>> It seems to me that NG is the hands down fuel cost winner? Anyone see >>>> mistakes in this? >>>> >>> >>> >> >> >
