Again, its all math, a seperate system, inverters, batteries, array will
cost more than the conduit, most likely alot more. Only you know if the
island can even be trenched so start there, this will determine if you even
have a choice. The existing system may need upgrading as it is and add that
Especially when one considers that an island off the coast of Maine is solid
rock and ragged/jagged. Just imagine that rock-sawing!
Separate system!
Scot Arey
Solar CenTex
-Original Message-
From: RE-wrenches On Behalf Of
Hilton Dier
Sent: Monday, January 10, 2022 4:37 PM
To:
I have a question about the high voltage transformer costs.
I’ve never sized or costed one out.
What does the 480v vs say a higher voltage one cost? And if you go higher what
does that high voltage rated wire wire cost vs 600v?
It’s an interesting question and like someone said, let’s see
I didn’t really register the distance on the first look. These days, 3,600 feet
of 3” PVC conduit is going to knock you back ~$18,000 to start, plus trenching
and cable on top of that. I agree with prior comments that it would be cheaper
to put in a new system.
Hilton Dier III
Renewable
I also have a new (7 month old) PAE system with 2-4448 Inverters (stacked) that
we are having some strange issues with. The most troublesome issue is the new
Rheem wall-hung LP instant water heater/boiler is throwing an Error Code 12
which is supposedly a “Flame Failure”. It’s a brand new
Aluminum wire…….
> On Jan 10, 2022, at 2:53 PM, August Goers wrote:
>
> 3600 feet is 0.68 miles. That's a long distance. I totally agree with Ray's
> suggestion that a second system is probably a better option.
>
> August
>
>
> On Mon, Jan 10, 2022 at 11:49 AM Tump mailto:t...@swnl.net>>
>
Transformers is the way to go boost and buck, but do a cost analysis for
wire vs transformer, go even more than the 480
Jerry
On Mon, Jan 10, 2022, 3:34 AM Foxfire Energy wrote:
> Hi Guys, Got a good one for you.. We were tasked to refurbish a Stand
> Alone (aka Off Grid) power system on a 100
3600 feet is 0.68 miles. That's a long distance. I totally agree with Ray's
suggestion that a second system is probably a better option.
August
On Mon, Jan 10, 2022 at 11:49 AM Tump wrote:
> Hey this is exactly everything I was going to say. Ahh the new owner, the
> dentist he’s a real piece
Hey this is exactly everything I was going to say. Ahh the new owner, the
dentist he’s a real piece of work. You got your spring vacation, on him, you
got paid and now you want to go back? Hummm lets see installation for a MR.
know it all, 500+ miles from home and you’re now going to use a
I find they drop out over time due to networking issues and eventually
will reconnect and catch up on data. Right now, about 20% of my systems
installed in the past 5 years are having some issue with a microinverter
or network. In a couple of days, they probably will reconnect and the
emails
The decision to use transformers, to step the voltage up and down,
rather than larger wire for a long circuit is more complicated than
simply comparing the cost of the wire to the cost of transformers and
smaller wire. Even with good toroidal transformers, the transformer pair
is adding about
That's a long enough run that you really need to weigh the cost of a
separate system. I'm not seeing the advantages of keeping a single
system for the whole island.
Ray Walters
Remote Solar
303 505-8760
On 1/10/22 9:43 AM, Chris Mason wrote:
I would use a 6,600V single phase outdoor pad
I would use a 6,600V single phase outdoor pad mounted transformer pair and
deep bury a single #2 direct burial cable. Easy and quick.
On Mon, Jan 10, 2022 at 7:34 AM Foxfire Energy
wrote:
> Hi Guys, Got a good one for you.. We were tasked to refurbish a Stand
> Alone (aka Off Grid) power system
Yes, i agree, with others, DC has lower losses when at higher voltage, when
i was involved with similar project, we took transformer cost plus wire
cost did some simulations, (added wire and transformer for different
configurations) and selected lowest cost.
On Mon, Jan 10, 2022, 5:34 AM Foxfire
So you have a client with clever ideas - my deepest sympathies. The five most
frightening words from a client are “I am a retired engineer.”
DC transmission is theoretically more efficient due to the surface conduction
effects of AC. However, this is only true in a practical sense at
Hi Guys, Got a good one for you.. We were tasked to refurbish a Stand Alone
(aka Off Grid) power system on a 100 acre private resort island off the New
England coast a few years back.. The system has a 12kW(AC)/ 48VDC power center
(@120/240VAC) with a 10kW Bergey wind turbine, 3kW of Solar and
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