Extending main power feed on property.

[hightech]

At my ETX place I had Oncor install a 320 amp service and spit off to two 200 amp panels. 200' from pole w/transformer.

Question is my shop and house building spot is another 220' down the hill.
Would it be more beneficial or cheaper to extend the initial service/move meter or extend the 200 amp mains to the shop and house.


Shop and house will be 20' apart and 220' from current.
Picture is from 10/2017, it is energized now.

[splitbeam145]

is shop and house sharing one 200amp panel or they gonna have their own 200amp panels?

[CJ776]

If your current place is running off 1 of the two existing 200amp panels and you want to run new shop and new house off the 2nd existing 200amp panel, just from secondary off 2nd 200 amp panel to your new build.

I wouldn’t run a new service or set another meter for your new build if you have a spare panel ready to go...

Secondary from panel to house will be cheaper than extending primary from transformer to new meter/service


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[Mike D]

I would do a cost comparison.

Ask the utility company for a price to expend the service drop to the new location.

Then have your electrician quote to extend the 2 new branch circuits to the house and shop respectively. 200’ on the downstream side of the meter isn’t necessarily a problem provided the raceway and wire are sized properly but it can get costly.


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[hightech]

is shop and house sharing one 200amp panel or they gonna have their own 200amp panels?

House and shop will each have a dedicated 200 amp panel.

Currently the only thing I am running on it is a 30 amp RV plug.
Nothing has been extended and not concerned if I lose the 30 amp where it is.

[RonRon]

Extend power to the shop and house from the existing rack. You will experience little or no voltage drop at that 450' distance. Everything electrical is built so efficient nowadays that the amp load on your service will be at a minimum.

I have 7 mobile homes at my lease,[ 5 are all electric, 2 have propane appliances], all on a 200 amp service. I have never tripped a main breaker...…….and it's been there for 28 years.

I'm also an electrical contractor, [51 yrs. in the business]…….I would not lead you astray.

[hightech]

So run a new feed from my existing panel to the shop and another to the house.
What gauge wire would I use in buried conduit.

I am wanting to prep the site and have an electrician do the connections.

[Mike D]

Extending main power feed on property.

So run a new feed from my existing panel to the shop and another to the house.
What gauge wire would I use in buried conduit.

I am wanting to prep the site and have an electrician do the connections.

Do you need 200 Amps at each location? You’ve paid for the utility infrastructure installed you may as well use it.

There are a couple of different ways you can do it even downstream of utility.

Also which is going to built and complete first; house or shop or will they go at the same time?


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[friscopaint]

So run a new feed from my existing panel to the shop and another to the house.
What gauge wire would I use in buried conduit.

I am wanting to prep the site and have an electrician do the connections.

My trench had to be min 36 inches deep and forgot how wide but had to use larger trencher. Mine wasn't far though and they laid rubber coated line in didn't run conduit but that was going to the meters. I guess if you have the meters set you can run it however you want, should actually be pretty simple especially if it's trenching ground which mine is.

[Quackerbox]

I have similar set up. 400 amp pedestal at the road with 2 200 amp breakers.

I planned on 200 for the shop that's built and 200 for the house (at a later date). At the moment the plan is direct bury but in conduit. Shop is 250 ish feet from the service

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[MadHatter]

I would run a stranded Aluminum 4/0 URD for each 200amp panel. May call for 250 at that distance, I'm not sure.
It will save you time and money. You can get away with not using conduit as well.
Put your disconnect on the outside of the structure and then run copper inside.
You can buy the spool of wire yourself, dig the trench yourself, and lay the wire.
Mount your panels, and extend conduit down to the trench.
Terminating all 4 ends is about 2 hrs worth of work, which should be the only thing you need to pay someone to do.

[hightech]

Do you need 200 Amps at each location? You’ve paid for the utility infrastructure installed you may as well use it.

There are a couple of different ways you can do it even downstream of utility.

Also which is going to built and complete first; house or shop or will they go at the same time?


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Plan to leverage 200 amp at each (shop and house)

Shop is going up first and adding small living quarters to live in while house is going up.

[hightech]

I would run a stranded Aluminum 4/0 URD for each 200amp panel. May call for 250 at that distance, I'm not sure.
It will save you time and money. You can get away with not using conduit as well.
Put your disconnect on the outside of the structure and then run copper inside.
You can buy the spool of wire yourself, dig the trench yourself, and lay the wire.
Mount your panels, and extend conduit down to the trench.
Terminating all 4 ends is about 2 hrs worth of work, which should be the only thing you need to pay someone to do.

Many thanks.

Ready to get rolling.
Drove out there and met with builder today.
Waiting on final draft.



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[hightech]

Made some progress yesterday, finalized design and signed the contract for the shop. 60'x40' with a 10'x60' porch.

Oncor came out and said they cant extend the main.
He stated that 200' from the transformer is their max.

He did say that I could either extend it myself or run two separate 200 amp feeds.

Any other input on wire gauge and type needed for to extend a 200 amp feed 220'

Would like to get the wire buried soon so I can get an electrician out once shop is dried in.

Thanks.

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