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cali

(114,904 posts)
Thu Jul 25, 2013, 06:22 AM Jul 2013

Hmm. New England power demand peaks. Grid operator tells wind farm to cut output

while ordering polluting sources to ramp up.

As Power Use Peaked, GMP Ordered To Cut Lowell Wind Output

Last week, when electricity demand hit a near all time high in New England, the operator of the regional electric grid ordered the Lowell, Vt. wind project to cut its power output.

The move baffles the utility and wind developers. They question why a renewable energy project was scaled back when polluting power plants everywhere in the region were told to run full blast.

<snip>

But it issued a contrary order to Green Mountain Power. The utility was told to cut power output from its 21 turbine wind project in Lowell. GMP spokeswoman Dorothy Schnure said utility executives were perplexed by the order since ISO also wanted GMP to put its rarely used fossil-fuel generators on line.

“Last week, the ISO actually was telling people to use less power at the same time that it was telling us to turn on our diesel fuel units and limiting what we could generate at our wind plant,” she said.

Schnure said the utility was asked to curtail output from the Lowell project by 15 to 30 megawatts. Lowell has a maximum capacity of 63 megawatts. She said GMP asked ISO New England for a reason for the cut-back order, but has not been given one.

<snip>

http://digital.vpr.net/post/power-use-peaked-gmp-ordered-cut-lowell-wind-output

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Hmm. New England power demand peaks. Grid operator tells wind farm to cut output (Original Post) cali Jul 2013 OP
Because they can charge more for fossil fueled electriciity. hobbit709 Jul 2013 #1
The article claims that the lines at Lowell could not carry the load, Progressive dog Jul 2013 #2
and it also explains the power could have been used locally cali Jul 2013 #4
That wasn't clear to me from the article. Progressive dog Jul 2013 #5
right here cali Jul 2013 #7
The phase correction has to go on the load end Progressive dog Jul 2013 #9
The PTB make money off fossil fuels. That's why the US military is the biggest user of fossil fuels. valerief Jul 2013 #3
One reason I could think of The Straight Story Jul 2013 #6
Corruption? Perish the thought... Junkdrawer Jul 2013 #8
Conspiracy?? It's too scary for many to admit. chimpymustgo Jul 2013 #10
Shhhh... n/t Junkdrawer Jul 2013 #11
If you are running the grid close to 100%, you only want well controlled sources of energy FarCenter Jul 2013 #12

Progressive dog

(6,905 posts)
2. The article claims that the lines at Lowell could not carry the load,
Thu Jul 25, 2013, 08:02 AM
Jul 2013

without being specific about why. The operator of Lowell is going to install a synchronous condenser near the Lowell plant. Apparently this would be used to correct the line power factor and increase it's capacity. The correction would only be on the line between the generators and the condenser.

 

cali

(114,904 posts)
4. and it also explains the power could have been used locally
Thu Jul 25, 2013, 08:50 AM
Jul 2013

without having to stress carrying capacity.

 

cali

(114,904 posts)
7. right here
Thu Jul 25, 2013, 09:17 AM
Jul 2013

But David Blittersdorf, a wind energy developer, said last week’s cutbacks on Lowell don’t make sense since the demand for electricity was high both region-wide and in the Northeast Kingdom.

“The idea behind the curtailment on Lowell is that they have this system problem and a weak grid. But if your load’s right there, that doesn’t matter,” he said. “You want to supply it with the generation that’s right there. It’s not going hundreds of miles away, which a weak grid would have a problem with. So I consider what they’re doing really bizarre.”

Progressive dog

(6,905 posts)
9. The phase correction has to go on the load end
Thu Jul 25, 2013, 09:22 AM
Jul 2013

and the wind operator says the synchronous condenser would be near Lowell.

valerief

(53,235 posts)
3. The PTB make money off fossil fuels. That's why the US military is the biggest user of fossil fuels.
Thu Jul 25, 2013, 08:42 AM
Jul 2013

The Straight Story

(48,121 posts)
6. One reason I could think of
Thu Jul 25, 2013, 09:00 AM
Jul 2013

If they are reaching max output other sources are not as easy to shut down and restart (turbines also have less staff generally that would be idled in such a case).

We had a lot of controls in place to monitor usage and shut down windmills automatically given certain conditions (and based on a maintenance schedule which tied into rotations/etc).

In hydro/coal vs wind it takes a lot less work to shut down a few turbines.

Just my experience.

Junkdrawer

(27,993 posts)
8. Corruption? Perish the thought...
Thu Jul 25, 2013, 09:21 AM
Jul 2013

That would require two humans to talk and you KNOW what that is...

chimpymustgo

(12,774 posts)
10. Conspiracy?? It's too scary for many to admit.
Thu Jul 25, 2013, 09:26 AM
Jul 2013

Because if this could be, what else might be? Never mind - don't go there!

 

FarCenter

(19,429 posts)
12. If you are running the grid close to 100%, you only want well controlled sources of energy
Thu Jul 25, 2013, 09:42 AM
Jul 2013

you do not want sources which vary with wind speed which would cause other generators to have to throttle up and down to compensate for wind variability.

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