Posted on 02/24/2014 5:18:11 AM PST by thackney
A lie.
CapeWind Spokesman Mark Rodgers said that's one aspect of offshore wind that many overlook when they think about the high cost of deploying an offshore wind farm.
A big f'ing lie.
Good luck New England, you are going to need it.
When the solar supply is depleted (and it won’t be from too large of consumption) there will be bigger issues...
Actually I was referring to the Northern Pass. The Northern Pass is a proposed high tension electric power line to bring electricity generated in Quebec down through New Hampshire to Ma and CT. They need the approval for a new right of way through the northern most two counties in the state. The fight is that nobody wants these 150’ high towers in their back yard or ruining their view. Therefore, they may have to bury them to get the approval with the state. That would of course cost the utility more money.
Sorry, I should have checked the name.
Buried electrical transmission lines are many times more costly than overhead lines. Faults are not quickly repaired and have much shorter lifespan (time between faults).
As an electrical engineer, specialized in power system, I must say you know not what you request.
It may be cheaper to build a nuclear power plant instead. Sadly, I'm only slightly kidding.
The NEW right of way is only about 35ish miles. They MAY bury only a portion of this. The remainder 3/4 of the state will transit along existing right of ways. It will not be buried.
The big problem, at least for Eastern Mass is the pipe line chock point in RI. In 2004 or 5 I don't remember I got in to a huge pissing match with ISO NE who wanted my 800 MW on line which I couldn't give them because Algonquin blew up a compressor house up in RI.
Can you show one line they installed buried at over 1,000 WM?
Or half that size?
Or half of half of half that size?
Pages 3 through 6 give some indication of the challenges of burying large electrical transmission lines. Note this is a line of approximate 1/2 the power flow.
http://www.nstaronline.com/docs3/openaccess/roe-volume-4.pdf
I made electricity for 40 years and I get sick of people who think that it flows from the light switch.
Thanks, I would like to read anything technical you have about that line. I'm not saying it is impossible, but it is tough to make any economics work for that.
Most of NSTAR's distribution is underground
12.47kV, 13.8kV and 34.5kV are a whole different animal than 345kV
talk about something you have some idea about
Well, I've only been on the design, construction and start up for buried 69kV. All my 345kV design and construction activities have been above ground.
I think I see the line you are describing. Not a single 1500MW line but three parallel circuits due to the power limitations of available technology. Still a single functioning line, just not what I was imagining.
As I linked in post 49, they used High-Pressure Fluid Flow (“HPFF”) 345 kV transmission line technology. All three phase cables (per circuit) are installed inside a
single steel conduit. The conduit is filled with a pressurized dielectric fluid. It requires cooling systems with fluid flow / heat exchangers to dissipate heat.
We have a similar concept but lower power system here operating between Houston and Galveston, but it is 69kV in an oil bath. I’ve been in the building for the Houston end of the line.
These type installations would be significant complicated through some of the more mountainous terrain required for parts the Northern Pass Line.
Examples:
http://northernpass.us/assets/south%20kinsman%20south%207.03.13%20optimized.pdf
http://northernpass.us/assets/community-pdfs/bald%20peak%20south%20%20optimized.pdf
120 KV from K St to Mystic Station, 345 KV to Dorchester Switch Yard, 345KV Jamaca Plain to Kst.
Go to ISO NE for details.
I have heated exclusively with wood pellets for the last 5 years as have many people in my Town. This is the first year that local suppliers have run out, Lowe’s, Home Depot, Tractor Supply, Walmart and a number of others.
Mostly East Vermont, Mass, and Conn.
If they cam run a gas line from Nova Scota I don't think a power line would be that difficult if the telemetry is in place.
They can, but I don’t believe they should. Too great of an expense.
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