Showing posts with label electricity. Show all posts
Showing posts with label electricity. Show all posts

Tuesday, February 10, 2015

Why Electricity Costs Spiked in New England: My Op-ed

Why Are the Rates Rising?

A Valley News "Forum" letter writer was speaking for many recently when he asked about the huge electric rate increases this winter and the paltry explanations for them. David C. Montgomery of Hanover said his electricity bill had increased by 72 percent, even as petroleum products have dropped in cost. “All we have seen,’’ he wrote, “is a rather unconvincing claim about the need for more natural gas pipelines in New England and a series of what seem to be diversionary workshops on insulation.”

His letter states the problem succinctly. Oil prices are down. Gasoline prices are down to levels not seen for years. Natural gas prices are still low. “The need for more pipelines” does seem a rather weak claim, compared to the cheapness of the commodity carried in them. Also, why would we need more pipelines now, when we didn’t need them five years ago? The demand hasn’t changed that much.

The answer is that the grid itself has changed in our region. Power plants have been retired: Salem, Mt. Tom, Vermont Yankee. When coal and nuclear plants shut down, existing gas plants run longer and use more fuel, to make up for that power. More gas-fired plants are also being planned for the future.

More Gas Needed

Around 2000, about 15 percent of New England’s electricity was made by burning natural gas. Gas was expensive, and used only during times of peak demand. The rest of the time, electricity was supplied by a mixture of coal, nuclear, oil and hydro. Back then, with only 15 percent of electricity coming from natural gas, pipelines to the Northeast were adequate.

Now, the price of natural gas has fallen, and nearly half of our electricity demand is met with the newly inexpensive natural gas. With increased demand, the pipelines are no longer adequate. Particularly during very cold weather, when homes use more natural gas for heating, there isn’t enough available for power plants.

Last year, when temperatures plummeted and natural gas ran short, power plants burned oil, diesel and even jet fuel. The price on the grid went up as utilities bought power produced with more-expensive fuels. Last year, bulk electricity prices often soared past 40 cents per kWh (kilowatt hour) during times of high demand. (It’s usually 3 to 8 cents per kWh.) You can track realtime prices on the grid operator site (ISO-NE) on the Web.

Other costs also go up when power plants retire, but these aren’t so easy to track. For example, capacity payments go up. So far, I have described prices for kWh . . . that is, for power produced. There’s also something called a “capacity payment”: a payment for a plant to be available to produce power. The capacity payment auction takes place three years in advance. In 2013, the auction yielded $1 billion for power plant operators. Then a number of plants retired. With more scarcity, the 2014 auction brought $3 billion to plant operators. These billions are not as visible as the “price on the grid,” but the money comes from ratepayers and raises everyone’s cost of electricity.

Montreal Snow
from Wikipedia
Winter Reliability

Then there’s the reliability issue. The grid operator will do whatever it must to ensure reliability. For the past two winters, our grid operator has run “winter reliability programs” and frankly, that program saved us last winter. Last winter, the operator paid about $70 million to power plants that could burn oil. The plants used this money to stock up — with a supply on site, they had fuel available when they were called upon. Indeed, when gas-fired plants could not get gas, the oil-burning plants went online.

Last year, the Winter Reliability Program cost $70 million in the Northeast. This year, it is budgeted at $80 million. These multimillion dollar programs get translated into our winter power bills and winter price rises. However, there is a bit of hope for the future. This has been a milder winter, with low oil prices. To date, the grid’s Winter Reliability Program has spent far less than last winter, and that is a hopeful sign for the future.

Renewables

What about renewables? I will not focus much on renewables or their costs, because they are a very small portion of the electricity supply. I have been watching the hourly fuel supply on the grid rather closely, and wind has never been more than 2 percent of the supply. Renewables, including biomass and refuse, are about 6 percent of the supply. Renewables are not the cost-drivers on the grid.

Solutions, Maybe

I’ve explained the reasons for recent price rises, but do I have a solution? Well, a partial solution, maybe. First, I believe in conservation, and I just invested a great deal in improved insulation for my house. (And I want to thank Efficiency Vermont for picking up part of the cost.) To me, workshops on insulation are not merely diversionary. They are terribly important.

Being in favor of insulation is about as controversial as favoring real maple syrup. My second point is a little more controversial. Supposedly, we need more pipelines because gas is the fuel of choice . . . now. It’s abundant and cheap. But I don’t think it will remain cheap. Should we be building more pipelines because of low-priced gas? I am not sure. If the price of gas goes up, the pipelines will not be fully used.

Pipeline Pig Launcher
Wikipedia
Instead of more pipelines, I think we need a diversified grid. If we choose, we can build more renewables with a diversified grid, just as we can build them with a mostly-gas grid. And with a diversified grid (yes, I mean keeping our nuclear, coal, oil, Hydro-Quebec power as well as gas), we won’t have all our eggs in one basket.

If we are going to have a heavily natural-gas grid, we could keep our costs more stable (for now) and our grid more reliable by building more gas pipelines. But I think it would be better to choose conservation and grid diversity. With that, perhaps we could have reliability and prevent further drastic price rises in the future.

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Meredith Angwin of Wilder is a physical chemist who worked for electric utilities for more than 25 years and now heads the Energy Education Project of the Ethan Allen Institute.

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This op-ed appeared in the Valley News Sunday, January 18, 2015. I have edited it slightly (such as explaining that "Forum" is the Valley News letters section.)

It was illustrated with a very nice picture of Vermont Yankee.  The op-ed has appeared other places, also, including Vermont Digger, where it began to have a lively comment stream, but then a well-known anti-nuclear activist took over the comments.

I don't think it is worth duking it out with trolls, especially after they insult me.  For example, this line: Ms. Angwin still fails to acknowledge, however, that her basic premise is simply false: it is simply not a “fact that electricity prices are soaring all over the region.”  

In cheerier news about this op-ed, Don Kreis wrote a letter to the Valley News about my op-ed. Kreis is a former professor at Vermont Law School and a hearing officer with the Vermont Public Service Board. (His letter is not on the web, so I can't link to it.)  I am proud to quote the first sentence of Kreis's letter:

Meredith Angwin of the Ethan Allen Institute is a rock star among energy analysts, and she hits the right chord by blaming the recent run-up in electric rates on our big regional embrace of natural gas as a generation fuel.




Wednesday, September 15, 2010

Prosperity and Energy and Convenience Revisited. Warning: Feminist Angle

Prosperity

I wrote a post about how access to energy improves lives in in the third world-- It's the Energy. Why I Love Nuclear. Karen Street, of A Musing Environment blog, read that post. She suggested that I should probably say that I did not mean to encourage rich people to be wasteful of energy. In her opinion, while energy is essential for people in the third world, many people in developed countries use it wastefully.

I thought about her comments and realized that energy makes life better, even if you already use a fair amount of energy. In my answering blog post, Prosperity for Rich Folks, I said that something that looks like "waste" to one person can be very important to the life of another person. The example I used was big refrigerators. I honestly can't imagine how I would have worked and raised two kids without an American-size refrigerator, though many would consider it wasteful.

In response to my post, Karen posted an excellent argument for conservation and moderation in Are we richer if we make perceived convenience the priority?

Karen defined the problem clearly, and I planned to answer her post. Yet...time went by, as it so often does. I didn't get around to writing an answer. However, this morning, Rod Adams posted about efficiency versus abundant energy, and that made me think about the subject again.

Can Nuclear Do It?

The crux of the matter is whether nuclear can provide enough energy for rich people to live a life we consider convenient. If nuclear can provide abundant energy, then everything is fine. If not, I am burning the world's limited supply of fossil fuels for my lifestyle. Karen points out that there is no peer-reviewed study that shows nuclear can provide this level of power for everyone.

I think nuclear can provide large amounts of inexpensive power to everyone in the world. I cannot prove this. Perhaps others can. One could argue that I should live a life of deep energy frugality until it is proven.

By the way, about deep energy frugality. Karen absolutely walks the talk. She has not owned a car since 1991. I have the greatest admiration for her. Karen not only lives a careful life, but she is a clear thinker. As she pointed out, the crux of the matter is whether inexpensive, low-emission power is abundantly available. Or not.

What is Convenience, Anyway?

Back to my fridge. I can't prove that nuclear can provide enough energy, but I do want to talk a little about word choice. I don't like the words Karen used in her essay title: Are we richer if we make perceived convenience the priority?

In my opinion, "convenience" and "perceived convenience" are pejorative terms for people's choices. I chose certain material things (a big fridge, say) because then I could live the life I wanted to live: a scientist AND a wife and mother. My desire to be a scientist and a mommy may have been inappropriate according to some people's ideas. Perhaps it it took too much energy (my own car! a big fridge!) But it was, indeed, what I wanted to do with my life. This is beyond mere "convenience."

So, it boils down to this. If energy is abundant, then my choices were all right. If not, I would have had to choose. I could work, or I could have kids. I believe it is truly as stark as that. Being a working mom is tough enough, using every possible support you can get. If I had to hang the laundry in the morning and take it in if it looked like rain, if I had to shop every day for my family, it would have been impossible to combine motherhood and career.

Aside: I read an early interview with Dr. Chu right after he became Energy Secretary. He talked about biking to work every day at Berkeley. Someone asked him if his wife also biked. He answered something like: "No. She doesn't bike. She needs a car to carry the kids and groceries." My feminist antenna went on full alert. I thought: "Ah, he stays on his bike, riding along on the moral high ground, while she does the schlepping. So admirable! Or maybe, not so admirable?" Yeah. I'm cynical. End Aside.

The Bottom Line

In poor countries, women are liberated from lives of poverty and endless childbearing by access to energy. In rich countries, women are liberated to have both children and careers by having abundant energy. Nuclear power can provide that energy. That's how I see it. I don't have the statistics to back this up, but that's how I see it.

To some extent, a blog is a set of opinions. This is my opinion on women and energy.

The image is a painting by Albert Anker: "Excess" From Wikimedia.