Sign-In  or  Create a Free Account
Sign-in with:
 
World's #1 Renewable Energy Network for News & Information
 
Renewable Energy Solar Energy Wind Energy Geothermal Energy Bioenergy Hydropower
 

Putting Our Utilities on an Energy Diet

By Alison Wise, Clean Economy Network
December 3, 2010   |   24 Comments

Do you like this opinion & commentary?

 
 

The information and views expressed in this article are those of the author and not necessarily those of RenewableEnergyWorld.com or the companies that advertise on its Web site and other publications.

24 Reader Comments
Comment
1 of 24
December 4, 2010
And who are the rats?
No image available
Comment
2 of 24
Anonymous
December 4, 2010
Alison claims: "We are only 13% energy efficient in this country..."

This sounds like a dubious statistic, perhaps she would like to provide a reference for it or a discussion about how it was calculated.
Steven
Comment
3 of 24
December 5, 2010
I've seldom heard so much verbiage that contained so little content. The claim that we only "need" 13% of the energy we now use can be dismissed as pure nonsense. We will ALWAYS need more and more energy, unless we can find some way to eliminate
population/economic growth, and we've got a couple of billion folks who can only go up the economic scale. And again the snake oil claim that we only have to "smarten up" the grid and we can somehow manage to satisfy on-demand consumption with uncontrollable supplies of renewable energy. Small wonder savvy grid operators laugh out loud at some of the self-proclaimed experts on grid management.
Comment
4 of 24
December 5, 2010
I like this article. I found it well thought out and; being a student of Energy Services and Technology, I appreciate the description of a decoupling paradigm that I can easily comprehend.
@theBike; I may be wrong but I think the only issue is the use of the word need. You are correct about demand constantly rising in our society but currently the means we use to generate electrons is highly inefficient, the way we get electrons to the end user is also very wasteful and in these processes, we lose 87% of the energy contained in a fuel/resource. So 13% of the inherent energy is delivered for use.
Comment
5 of 24
December 6, 2010
Interesting analogy with diets but not really sure about the percentage figures, would need to see concrete evidence to support this. I agree with the continuous rising demand but that is aligned with growth and the increase in population.
Comment
6 of 24
December 6, 2010
Editor's note: I was unable to find the link that Alison suggested we use after her statement about America being only 13% efficient. She has now pointed me to it. I urge interested readers to take a look here: http://www.aceee.org/press/2010/04/americas-anemic-13-percent-economy-experts-warn-us-risks or click the (now active) link in the reference above.
Comment
7 of 24
December 6, 2010
From the referenced ACEEE document
"America's economy has tripled in size since 1970 and three-quarters of the energy needed to fuel that growth came from efficiency advances – not net new energy"

Although energy use habits of the past were reprehensibily wasteful we should not overlook how much has been accomplished over 30 years with energy efficiency technology piggy-backed on advances in power semiconductors and computing power.
Comment
8 of 24
December 7, 2010
Excellent article. We can and should be on an energy diet! We simply use too much energy. Studies show that by simply monitoring our electrical usage (and not trying to change any habits) we automatically and unconsciously reduce our electrical usage by 5% to 15%. That is significant. Much more of a reduction can be seen if and when we try to change our "wasteful habits."

On the other hand, every time we use energy some energy is "wasted." So, I am not really sure what the 13% "inefficiency" number is telling me. For instance, whenever energy changes form or mass changes to energy some is "wasted". None is ever lost, it simply is not used for the specific purpose intended. No motor can ever be 100% efficient. It is impossible with friction, etc.

25% efficiency might be a super high number, so 13% efficiency may not necessarily be all that bad. We are not comparing 13 with 100 we should compare 13 with some other reasonable (but much better than where we are) number.

It would be interesting to parse that 13% and see exactly what it means and how countries compare. The reference article says Japan and several European countries are at 20%.

Randy
SimpleEnergyWorks.com
Comment
9 of 24
December 7, 2010
From the generation side of the equation, simply looking at efficiency can be somewhat misleading, as fuel and investment costs are also major considerations, although more efficient is generally better than less efficient. In any case, utilities inherently have a powerful reason to increase generating plant efficiency as that allows them to make more money. No particular need for government "help" in that area.

At the user level, I think the fundamental premise of increasing utility involvement in energy efficiency (and conservation) is not the best approach.

Utilities make more money by selling more power while efficiently getting electricity to the end user. How the user consumes the power is not their specialty. As such, utilities are inherently reluctant middlemen partners in any effort to reduce electricity consumption.

I think a better approach is for the government to provide tax rebates to end users, with heating & ventilation equipment manufacturers as well as local contractors heavily involved in the effort (including receiving reduced taxes on the good and services they provide). These folks inherently have a strong vested interest in providing more efficient equipment.
Comment
10 of 24
December 7, 2010
Excellent point, but flip the coin over. Reducing the need for 13% with distributed solar has a disproportionate effect on the 87%.

Old solar technology is available to do just that. Yes, old technology: daylighting and thermal. No, not PV, CSP or windmills. Right on the various buildings including commercial & industrial, low profile buildings. The preceding generation of sawtooth roofing proves that much. Bundling additional (thermal) benefits brings the technology from the turn of the provious century to the dawn of this one.
No image available
Comment
11 of 24
Anonymous
December 7, 2010
A press release that also does not cite a source does not really qualify as a suitable reference for this "13% efficiency claim". The claim is almost certainly without basis. A significant percentage of US energy usage is for space and water heating and most of this is done with natural gas, propane, or fuel oil--and the use of these fuels for heating is probably well above 80% efficient on average.

A significant percentage of energy usage in the industrial sector is actually feedstocks (used to make plastics, fertilizer, etc.) and by any reasonable measure these processes have efficiencies well above 13%.

I bet that once one accounts for feedstocks and heating usage even if one assigns a lower bound of essentially 0% efficiency for all other uses, you would get an aggregate efficiency of more than 13%....

In most studies on energy efficiency a large percentage of "lost" efficiency is due to waste heat. In principle, some of this could be used for district heating, etc., but in most locations that is cost prohibitive and much of the year heating needs are minimal anyway.

In short, no one should be confused into thinking that we could improve energy utilization by anywhere near the factor of 7+ that this dubious statistic might imply. It would be quite interesting to see what some achievable energy efficiency improvements are but this 13% figure is not useful.
Steven
Comment
12 of 24
December 8, 2010
Steven - The link shows the 13% statistic being referenced to a symposium on energy efficiency which information was summarized by "John A. 'Skip' Laitner, director, Economic and Social Analysis, American Council for an Energy-Efficient Economy and Robert U. Ayres, emeritus professor, Economics and Political Science and Technology Management, European Institute of Business Administration (INSEAD)..."
I have the impression these guys would know what they're talking about.
Oh, and your comment about "much of the year heating needs are minimal" seems relative. Head out to Alaska anytime, or check out Maine from October to April, and talk to me about minimal heating needs.
Comment
13 of 24
December 8, 2010
My Chinese doc would also not recommend heating needs as minimal, if health is an objective, even in Oregon where needs are lower than in much of the continental U.S.

Considering the health challenges to our current budget issues, I want to bring up the issue of more healthful methods of HVAC in addition to more efficiency.

Safety and maintenance experts are now counseling CO monitors for every living space that heats with gas. Every year a family here either dies or almost dies from CO.

Getting better efficiency might reduce adverse-event statistics as well.

The use of radiant heat is increasing because of the comfort factor. Those selling radiant systems are well advised to talk this factor up, especially with those clients who have enough disposable income to make comfort a sales point.

More heart attacks happen in winter. The blood thickens. In addition, those poofy parts left around the joints of poodles were to keep the joints warm. Cold joints are more subject to injury.

Yet people turn thermostats way down if they are worried about budgets, as many are in these times, especially people on fixed or reduced incomes. This is not so much a problem for hyper young people, but it is an issue for other cohorts.

On the other hand, people also burn more biomass, which from a physiological point of view can be a heat-twice advantage, but from an air-quality point of view, has possible down sides in urban areas.

I read the article and the comment thread with much interest. I will track back to see what else gets said.
Comment
14 of 24
December 8, 2010
This is an interesting analogy comparing America's "obesity" to our laziness associated with energy use. But, we have had no luck encouraging people to be "healthier" and we keep getting fatter and fatter. Obesity is the number one cause of preventable death in America and the largest contributor to our healthcare costs, yet we continue to ignore the problem.

Turn that into energy use (electricity) and the conversation is even more difficult to manage.

The solution to the problem is to make clean, affordable energy - not just enough to replace coal-electricity-generation, but enough to double our electric generation in the US. Only then can we enjoy electric transportation.

The "stick" of punishment hasn't worked for obesity and it won't for energy use, either. Focus on carrots (healthy) by finding a breakthrough for clean, affordable electricity. Sadly, solar and wind are not a solution. Keep looking.
No image available
Comment
15 of 24
Anonymous
December 8, 2010
Douglas writes in comment #13:
"I have the impression these guys would know what they're talking about.
Oh, and your comment about "much of the year heating needs are minimal" seems relative. Head out to Alaska anytime, or check out Maine from October to April, and talk to me about minimal heating needs."

I am not easily impressed by credentials in lieu of facts. Perhaps there is a set of definitions (probably unusual ones) and a way of posing a question so that "13% efficiency" is a reasonable response. It would be nice to know what those are because it is hard to interpret this claim without such context. For instance, perhaps the remark referred to electricity usage rather than all energy. Or maybe the claim is just nonsense--press releases (even involving well credentialed people) often contain quite a lot of that. Why use such flimsy and ill-defined claims when clearer ones are surely available?

Regarding waste heat, I did have a caveat in my claim (i.e., "but in most locations") which was intended to exclude obscure special cases such as Alaska (most energy usage occurs in climate zones that don't require extensive heating year round). The fact is that in many situations there is no useful purpose to which one can use waste heat. If you want to call this a form of inefficiency that is fine, but one needs to understand the semantics to fully appreciate the meaning--waste heat is a very different type of inefficiency than, for instance, what occurs in a poorly designed electrical appliance.
Steven
Comment
16 of 24
December 8, 2010
@Anonymous Steven Comment#12
No matter how the 13% are calculated, it can be assumed that the number is calculated the same for the countries and regions it is compared with. So no matter how you put it, the US is way behind other developed nations.
As for efficiencies and "waste heat": there is co-generation (heat and power) and then there is tri-generation (heat, power and cooling). Either heating or cooling is required at almost any time everywhere, and hence the utilization of that energy would improve efficiencies.
Comment
17 of 24
December 8, 2010
There is a tremendous amount of waste heat at power plants and other industrial facilities that can be turned into electricity. Check out WOW Energies, Electratherm, Calnetix Power Systems, Ormat, Ener-G-Rotor. My suggestion is give electricity from waste heat the same tax incentives as wind, which I think is a PTC of $0.02/kwh for 10 years.
Comment
18 of 24
December 9, 2010
The "waste" heat at a power plant is a consequence of thermodynamics and not easily recovered because of the relatively low temperatures involved. Improved efficiencies generally occur when the working fluid (e.g. steam in a turbine or air in a combustion turbine) temperatures are increased. Material capabilities will limit how hot the fluids can be made.

Cogeneration at both industrial and power facilities is generally difficult to pull off because of the absence in the US of nearby facilities that can use heat or chilled water.

Densely populated European regions are generally more efficient at energy use than widely dispersed US cities. Case in point is "district heating" which is only economical in densely populated cities (underground steam piping is very expensive. Also, European homes/apartments are also smaller than those in the US, hence less energy use.

As I noted earlier, efficiency in and of itself is somewhat misleading as the cost of the fuel (energy) is also very important. If your fuel is cheap, spending large amounts of money for efficiency improvements does not make economic sense.
Comment
19 of 24
December 9, 2010
For folks interested in all of the verbiage, full article at HuffPo: http://www.huffingtonpost.com/alison-wise/the-clean-economist-the-u_b_787733.html

Thanks for the feedback-- to the debate about our actual efficiency, I believe in the research at ACEEE. That said, the analogy still holds true in that we are using a firehose, whether it is on Mach 13 or slightly less...
Comment
20 of 24
December 9, 2010
One other note about "cheap" energy. The value of the millions of years it takes to fossilize sunshine (hydrocarbons in coal and petroluem we burn are the same energy feedstock as the "carbs" we access in carbohydrates in biofuels, just in a fossilized form that works in internal combustion engines) is NOT monetized so we don't really have good information in our free market. Price that value accordingly, and we all have a much more even playing field...
Comment
21 of 24
December 9, 2010
@ AlisonWise: The solution is clean, affordable electricity. We haven't found that yet. Keep looking.
Comment
22 of 24
December 9, 2010
My sense in Portland is that line workers, the guys closest to the customers, really do want to integrate renewables.

They are sent to the meetings where advanced adopters ask them 6 zillion questions and keep the pressure on.

What I am not sure about is whether that pressure transfers up the chain as well as it might.

I think it does to some extent because my son is at MIT because of a PGE engineer he interviewed when he was still in high school, more than ten years ago. PGE has some engineers who deal with geothermal, and that was it for my son. Yup, I want to do this was his conclusion.

My son did a one-year master's at MIT, then went to Los Alamos. A lot of the guys in the lab there were working on seismic stuff but really wanted to be working on geothermal. They started working there in the 70's. Some of them were doing their own own work on the side, but they were frustrated that there had been so little national interest. It's important to know if people are testing bombs somewhere or what will happen to a water table if there is an earthquake above cities, but if we had had these guys working on renewables, we might be in better shape now.

The professor at MIT best versed on geothermal does not work on it much. It seems such a shame. People end up working on what gets the funds.

What gets the funds and the interest is changing, but S L O W L Y. Will the glaciers survive?
No image available
Comment
23 of 24
Anonymous
December 10, 2010
MartinT writes in comment 17: "No matter how the 13% are calculated, it can be assumed that the number is calculated the same for the countries and regions it is compared with. So no matter how you put it, the US is way behind other developed nations."

This is an invalid assumption; for instance, a computation riddled with mistakes often does not even predict qualitative trends correctly. I would also remark that nebulous claims to the effect that "we are falling behind X, Y, and Z so we had better hurry up" may work on lemmings but I require rational arguments to be convinced. Those with solid proof of their claims are rarely shy about sharing it.

In comment #21, AllisonWise remarks "I believe in the research at ACEEE."

Interesting, but well-meaning people make mistakes all the time and blind faith in them is rarely wise. If there is a sound basis for this 13% claim, why is it so hard to find?
Steven
Comment
24 of 24
December 10, 2010
The basic analogy of this article should still resonate with people who like to solve problems, no matter what the final percentage is that one haggles out for how one sees the harvestable leftovers of grandfathered processes.

Perhaps in the course of figuring out new uses, one would get a better idea of how much energy formerly went by without being creatively used.

U.S. utilities waste energy when highly paid professional people have a different attitude about what it is cost-effective to do than do people on fixed or limited incomes or people who are unemployed and who are used to duct-tape fixes and creations.

Let's take the flaring of "excess" gas as an example.

The We've Got Time people, who organize unemployed people to do things needed in community, probably have an engineer or 10 who could come up with a way to grow greens (say collards) or something with heat that could be produced from those flares when the weather is cold.

While used windows stack up at Habitat for Humanity and the Rebuild Center and other places that work to make use of stuff cast off by those who can afford to remodel, communities could be making better use of things that used to go in landfills, before Habitat, etc.

There are places in Brazil (e.g., Curitiba) where authorities think like this.

U.S. authorities have not seemed to think about this much, but an enterprising new official might seek to climb the ladder with this kind of project to champion. Think of the pr with formerly unconnected and disjected people, who might newly decide to vote!

The U.S. could use some better pr than what we get when just our heavy-handed repression and corruption stuff gets out, maybe to cut into Putin's glee at hearing Hilary Clinton go on about Julian the Famous, who isn't even a U.S. citizen. We are the world's class clown right now. Maybe we can turn it around, briefly, by turning our stereotyped behaviors on their heads?
Add Your Comment

Registered users, please make sure to Sign-In. We and others want to know your ideas and opinions. If you are not yet Registered -- it's quick and easy. Just click below.
Thanks!

Register Now   Sign-In

Alison Wise

View Alison Wise's Profile
About: Alison Wise, VP of Strategic Development at Elementa Group, brings more than 20 years devoted to working on environmental and socially responsible business and... more »

Advertise With Us

Planet Solar Inc The Interstate Renewable Energy Council, Inc. DNV KEMA Energy & Sustainability Prudent Living, Inc. PLANSEE SE Sunetric RBI Solar Inc.
World's #1 Renewable Energy Network
PennWell
Renewable Energy World Magazine International Renewable Energy World Conference & Expo North America Renewable Energy World Conference & Expo Europe Renewable Energy World Conference & Expo Asia Renewable Energy World Conference & Expo India Renewable Energy World Conference & Expo Africa
RenewableEnergyWorld.com Solar Power Gen Conference & Expo Hydro Review Magazine Hydro Review World Magazine
HydroVision International HydroVision Brazil HydroVision India HydroVision Russia
Twitter Facebook Linked In RSS Feeds e-Newsletters