To avoid these ads, REGISTER NOW!

Using Large Generator To Power Shop

Bobcat753

Well-known member
Joined
Feb 24, 2014
Messages
1,487
Location
New Hampshire
I will be moving shortly and will have a detached 25'-25' 2 car garage for my work space. The problem is there is only sufficient wiring run to it to power lights and a few 110v outlets. I want to be able to use 220v and some heavy duty 110v outlets.
I'm wondering if it is possible to have a breaker panel that can be wired to a plug outside that I can plug into my welder/generator into, to power the outlets. I will only be running one 220v machine at a time. My generator can put out 15,000W. A qualified electrician will do the work.
 
To avoid these ads, REGISTER NOW!

wyliesdiesels

Well-known member
Joined
Aug 14, 2012
Messages
20,006
Location
Modesto, CA
I will be moving shortly and will have a detached 25'-25' 2 car garage for my work space. The problem is there is only sufficient wiring run to it to power lights and a few 110v outlets. I want to be able to use 220v and some heavy duty 110v outlets.
I'm wondering if it is possible to have a breaker panel that can be wired to a plug outside that I can plug into my welder/generator into, to power the outlets. I will only be running one 220v machine at a time. My generator can put out 15,000W. A qualified electrician will do the work.

Did u want to have both the utility power and generator power available at the same time?

Is the generator gonna have its own panel?

What kind of outlets does the generator have?
 

matt_i

Well-known member
Joined
Mar 14, 2008
Messages
10,726
Location
SE Michigan
The only problem is generator power and thus internal combustion power is only around 25% efficient. The power company gets a lot more out of their turbine processes, I'm guessing around 75%. Thus lower cost.

If gas gets back to $4 and copper wire doubles in price I think it might be (have been?) a good choice to run a dedicated service now rather than later.
 

CNGsaves

Well-known member
Joined
Sep 26, 2012
Messages
13,233
Location
KS and OK
OP . . . if it's going to be powered by your Miller Trailblazer, then I'd just put in new "subpanel" that is isolated from the existing wiring. Homerun your 240v circuits and 20A 120v circuits to the new "Trailblazer subpanel" and have it's only power come from TB sitting outside with appropriate plug..

Later when proper large buried wire is done to shop, connect the subpanels together and discontinue using Trail Blazer, along with removing that plug.
 

tyme2par4

Well-known member
Joined
May 16, 2016
Messages
571
Location
NH
It can very easily be done.
Unless the garage is over 100' away from the house, I wouldn't hesitate to just run new wire and conduit to a new sub panel in the garage.
The cost of gas for a generator is going to add up really fast.
 
OP
B

Bobcat753

Well-known member
Joined
Feb 24, 2014
Messages
1,487
Location
New Hampshire
I know I could trench in new wire from the house but that would mean upgrading the house's subpanel, currently 100A, and ripping up half the driveway. Also the trailblazer uses a 14-50R plug. It is very good on gas and puts out power that is very clean. Yes it will also have its own panel.


CNGSaves- That is what I was kinda thinking, I can do electrical but for insurance purposes don't want to have to pay if there is an electrical fire somehow.
 
To avoid these ads, REGISTER NOW!

mike93lx

ALLIANCE MEMBER
Joined
Dec 9, 2013
Messages
37,507
Location
Richmond, VA
I know I could trench in new wire from the house but that would mean upgrading the house's subpanel, currently 100A, and ripping up half the driveway. Also the trailblazer uses a 14-50R plug. It is very good on gas and puts out power that is very clean. Yes it will also have its own panel.


CNGSaves- That is what I was kinda thinking, I can do electrical but for insurance purposes don't want to have to pay if there is an electrical fire somehow.

Why do you need to upgrade the house's panel? You could easily run a 60+ amp sub off a 100 amp main.
 

A_Pmech

Well-known member
Joined
May 8, 2007
Messages
8,002
Location
IL
Powering somethimg from a generator is never ever a good option if utility power is available.
 

wyliesdiesels

Well-known member
Joined
Aug 14, 2012
Messages
20,006
Location
Modesto, CA
I know I could trench in new wire from the house but that would mean upgrading the house's subpanel, currently 100A, and ripping up half the driveway. Also the trailblazer uses a 14-50R plug. It is very good on gas and puts out power that is very clean. Yes it will also have its own panel.


CNGSaves- That is what I was kinda thinking, I can do electrical but for insurance purposes don't want to have to pay if there is an electrical fire somehow.

How did u come up with needing to upgrade the house service?

What loads do u have in the house?

How far away is the garage?
 

sberry

Banned
Joined
Jun 18, 2005
Messages
35,747
Location
Brethren, Michigan
If I can save myself money and work by digging a ditch I am all over it. Takes all the maintenance, service, fuel and becomes a capitol improvement almost immediately. I will dig a ditch to save dragging extra garden hose if it is regular and you do have some line power but in this case is well underserved and you would be done with an upgrade most likely.
For out building I have added some extra wire and went back to a main on occasion.
 
Last edited:

sberry

Banned
Joined
Jun 18, 2005
Messages
35,747
Location
Brethren, Michigan
It takes a lot of work for a hobby type to put a welding hour in real field service on a welding machine expecially if they have electric in a shop. While you been putzing around with it the cost has been marginal and a tank of fuel last a long time and the hr meter spins slow, run a little aux power and that will get real old in a hurry as will starting that sucker to make a tack weld or fabricate from.
Don't take a week or so and a guy starts to see he could buy a little Maxstar for free.
 
To avoid these ads, REGISTER NOW!
Top Bottom