To avoid these ads, REGISTER NOW!

Generator garage

Stuart in MN

Well-known member
Joined
Sep 8, 2005
Messages
23,157
Location
Minneapolis
This isn't the usual type of garage posted here but I thought people would be interested anyway...

These are photos of a municipal water treatment plant that I did the electrical design for. I was out there today doing a final walkthrough after construction was completed. We included a storage garage in the building for a 200kw portable generator set, that can be used by the city to power this building as well as other facilities.

This is a view of the water plant. The generator garage is to the left. There's also a covered area on the far left, it's a picnic table pavilion for an adjacent park. That's my little BMW 325iX in the foreground. :) edit: I forgot to mention earlier, I spec'd that decorative light pole out by the curb as well.

attachment.php


Looking into the garage. Inside dimensions are about 12' wide x 24' deep x 14' high; the overhead door is 10' wide by 12' high. There's a gas unit heater overhead. The horizontal duct on the upper left goes to a thermostatically controlled exhaust fan, the vertical duct in the rear corner on the right is an air intake with a motorized damper interlocked with the fan. On the back wall there's a 240vac receptacle for the generator's engine block heater and battery charger; they are left plugged in whenever the generator is not in use to keep it warmed up and ready to go. There's also a smaller connector that hooks up to a leak detector that's built into the generator's double walled fuel tank (since this is a municipal water plant they will want to know right away if there's any diesel fuel leaks.)

attachment.php


Inside view of the garage, looking towards the back.

attachment.php


Inside view of the garage, looking towards the front. The light fixtures are 2 x 48" T8 fluorescents with vaportight covers mounted on angle brackets. These particular lights are made by a company in Wisconsin called LDPI ( http://wetdamp.ldpi-inc.com/376.html ) but most lighting manufacturers have similar products. They're good for damp areas - it should stay pretty dry in there, but they have a hose bib for washing down the area so there's the possibility of water spray. We also used them in the rest of the building so there's commonality. It's not a huge amount of light fixtures, but it's enough - this space is for storage only, they won't use it for maintenance.

attachment.php


This is the generator that will be stored here, it's a 200kw, 480vac, three phase Cummins.

attachment.php
 

Attachments

  • water plant.jpg
    water plant.jpg
    121.9 KB · Views: 1,057
  • garage.jpg
    garage.jpg
    117.7 KB · Views: 1,064
  • inside.jpg
    inside.jpg
    50.1 KB · Views: 1,055
  • inside 2.jpg
    inside 2.jpg
    78.7 KB · Views: 1,046
  • generator.jpg
    generator.jpg
    83.6 KB · Views: 1,052
Last edited:
To avoid these ads, REGISTER NOW!

A_Pmech

Well-known member
Joined
May 8, 2007
Messages
8,002
Location
IL
I like the electrical, nice work!

Pretty good sized generator for a portable unit, too. I'm surprised it isn't on a heavier trailer, actually. What does it weigh?
 
OP
S

Stuart in MN

Well-known member
Joined
Sep 8, 2005
Messages
23,157
Location
Minneapolis
I like the electrical, nice work!

Pretty good sized generator for a portable unit, too. I'm surprised it isn't on a heavier trailer, actually. What does it weigh?

The electrical contractor on this job is one of the best ones in town - I always breathe a little easier when I know they're working on my projects. They know what they're doing and they're great to work with.

I don't recall the weight of the genset off the top of my head, I'd have to look it up. However, the trailer is up to the job. This is actually a pretty average size unit for my line of work, though...I've done a few for some of the other local municipalities that are 450kw or 500kw. Those honkers are BIG, you're not going to tow them around with a pickup truck. :)
 

ert01

Well-known member
Joined
Jun 26, 2011
Messages
151
I am an industrial electrician by trade and I have spent the last 10ish years working at water treatment plants around western Canada... We've installed a few of those gensets and we have had good experience with them. Ours aren't installed in a garage though. Just an elevated cement pad outdoors in the elements. They stand up well so I'm sure that one will last a lifetime if it's sheltered inside.
 

rlitman

Well-known member
Joined
Oct 18, 2010
Messages
24,651
Location
Long Island
i like this generator http://www.turbinemarine.com/generators.html
1.1MW in a 5ft x 12ft package.... I think it needs a fire hose plumbed directly from an oil refinery for fuel supply though.

edit: yeah. 140GPH #2 diesel @ 1MW

Wow, that's pretty inefficient. At work, our 1MW generator is rated to use just under 65GPH of #2 diesel per hour. Of course it's the size of a short semi-trailer, I can't just choose to feed it diesel one day, gasoline the next, and natural gas the next, and it can't just be delivered by helicopter either.
http://www.generac.com/SpecSheets/0173810SBY.pdf

There's a reason I love my Honda 1000W unit. Under 30lbs to carry, and it consumes just over 1 gallon per day.
 
OP
S

Stuart in MN

Well-known member
Joined
Sep 8, 2005
Messages
23,157
Location
Minneapolis
Out of curiosity I checked the Caterpillar website, we work with their generator people quite a bit. Their 1MW diesel generators are rated at 70 to 72 gallons/hour at full load, depending on which one you get.
 
To avoid these ads, REGISTER NOW!
OP
S

Stuart in MN

Well-known member
Joined
Sep 8, 2005
Messages
23,157
Location
Minneapolis
Nice garage. I guess the cities are the only ones with any money left.

I'm not sure if you're insinuating we built this just to spend the taxpayer's money or what, but the city didn't have much choice. The old structure on this site was in bad condition, and additional filtering equipment was required to meet water quality standards.
 

Slaman37

Well-known member
Joined
Aug 12, 2011
Messages
51
Location
North Florida
Well it's really not portable, but it does make about 670 Gross MW... depending on the time of year, sometimes more...

1110091720a.jpg


Steve
 

Coyote Red

Well-known member
Joined
Jul 9, 2011
Messages
130
Location
Gold Country, CA
I'm not sure if you're insinuating we built this just to spend the taxpayer's money or what, but the city didn't have much choice. The old structure on this site was in bad condition, and additional filtering equipment was required to meet water quality standards.

I'm sure someone developed a solid justification for why a building was necessary to house a mobile genset for this city. Maybe it's truly justifiable. On the other hand, if it really is a waste of taxpayer money, it wouldn't be the first time a government blew taxpayer money foolishly and/or fraudulently. It's easy to be cynical in these times. And everyone has their own idea on how the money should be best spent. So there's that too.

Is it common practice for a city to own a mobile genset?
 
OP
S

Stuart in MN

Well-known member
Joined
Sep 8, 2005
Messages
23,157
Location
Minneapolis
I'm sure someone developed a solid justification for why a building was necessary to house a mobile genset for this city. Maybe it's truly justifiable. On the other hand, if it really is a waste of taxpayer money, it wouldn't be the first time a government blew taxpayer money foolishly and/or fraudulently. It's easy to be cynical in these times. And everyone has their own idea on how the money should be best spent. So there's that too.

Is it common practice for a city to own a mobile genset?

This is a water treatment plant, with a well pump and large filters and chemical feed equipment inside, that just happens to have a storage space for a generator. The additional 240 square feet required for the garage was a small fraction of the cost of the building and equipment.

After having built a couple hundred of these types of faciities, in my experience it's uncommon for a city not to have a standby generator. There's only so much water in reserve stored in water towers or reservoirs, typically 24 hours' worth. In the event of a long term power outage (due to weather, natural disaster, or whatever) life would be pretty hard without water for drinking, sanitation and fire protection.

To be honest, I'm pretty offended that you think I would be involved in some fraudulent project, and then have the gall to post photos of it.
 

Coyote Red

Well-known member
Joined
Jul 9, 2011
Messages
130
Location
Gold Country, CA
This To be honest, I'm pretty offended that you think I would be involved in some fraudulent project, and then have the gall to post photos of it.

First. I never made such an accusation.
Second: I believe you're a straight guy.
Third: Governments blow money both foolishly and fraudulently, and that has nothing to do with you or me (necessarily). In this case, at least from my perspective, it's just intardnet fodder.

But please, let's not talk about governments anymore. I apologize for injecting that foolishness into this portion of the forum.
 

Red Leader

Well-known member
Joined
May 15, 2011
Messages
2,689
Location
Denver, CO
Stuart,

You are a talented man. I'm just glad I can get lights wired up without shocking myself (every single time) :lol:

:beer:
 

slip knot

Well-known member
Joined
Mar 22, 2010
Messages
2,861
Location
Texas gulf coast
In Texas we are required to have onsite backup power at all treatment facilities. Most municipalities get trailer mounted gensets so they can be used thru-out the system. A lot more versatility that way.
If you think these gensets are a waste of taxpayer money start asking the folks on the east coast over the next few days if they want their tax money back or running water.

I've worked in public utilities for the past 20 yrs and can tell you that these guys work their butts off day in and day out for a batch of spoiled ungrateful citizens who dont have a clue what is involved in keeping a city moving. If ya think its easy come on down and get you some. I've got crews putting in 70-80 weeks fixing water leaks in the 103F heat. Our water department is only 13 people short right now cause everyone wants one of these cushy goverment jobs.

OK ,rant over, back to your regularly scheduled programming!
 

ambenz

Well-known member
Joined
Dec 12, 2010
Messages
4,237
Location
NW Chicago Suburbs
slipknot is right on ...our town has the same manpower issues as I hear about it from my wife that works for the public utilities dept in our town.
Some of the calls she fields made your head spin!!!
Those people "do" work their butts off!
Our town citizens can be sooo dopy..one guy wanted PW to come into his house, shut the water off, and fix his leaky bathtub!
 
To avoid these ads, REGISTER NOW!
Top Bottom