From Jack Wagon to Hobo

31 08 2010

A couple weeks ago, the National Academy of Sciences released a study that summarized the findings of the general public’s perceptions of energy consumption and potential savings from various end-uses in their daily lives.  You can check out the curves in the linked article above and take my word for it or risk brain damage reading the thing.  To me there are several significant findings, none of which surprise me.  These are in no particular order and are only a subset of the findings.

  • Finding #1 – When asked open ended questions about ways to save energy, people overwhelmingly selected curtailment measures over efficiency.  Shut stuff off.  Unplug it.  Drive less.  Relax and take it easy (love that one but don’t watch a 56 inch plasma while lying on the couch).  Conserve energy – so the answer to “What is the single most effective thing you can do to conserve energy?” is conserve energy.  I think I would have yelled at them like the Geico drill sergeant.
  • Finding #2 – People can reduce energy consumption by 30% “without waiting for new technologies, making major economic sacrifices, or losing a sense of well-being.”  Well I don’t know about the “making economic sacrifices” part of this.  Viewing average residential end uses of electricity, the easy stuff is lighting and… lighting.  I don’t see anything else on there that doesn’t require sacrifice, more work, or spending a lot of money.  Lighting accounts for 15% of consumption.  Assuming this is all incandescent, replace it all with compact fluorescent for about 2/3 savings, or 10%.  We’re one third the way there.  Space cooling could be reduced a couple percentage points tops without sacrifice, well, make that 0% without sacrifice.  You would have to set your temperature up all the time.  Setting the thermostat up is going to save practically nothing because heat transfer due to temperature differences outside versus inside are relatively small.  Clothes dryers?  You would have to line dry.  That is a sacrifice if you ask me.  The rest you are either going to be able to do very little or a bunch of nickels and dimes will add up to a few percentage points.The only way to get to 30% is to select efficient equipment when replacement is needed anyway.  Throwing away a working furnace and air conditioner with efficient models won’t pay for itself.  Spending extra for an efficient model when you need a new one anyway will.
  • Finding #3 – Turning off the lights when leaving the room is considered by the general public to produce attractive savings.  The paper says there is actually very little savings from this.  Hide the kids and maybe the spouse too!  I’m not buying this one.  The study is 25 years old coincidently.
  • Finding #4 – People relate to curtailment, using things less more than using efficient stuff by a margin of 5:1.  The top three items are turn off the lights, conserve energy (and call the sergeant), and drive less.  If you’ve ever thought of it, efficient vehicles are more efficient, all else equal.  The Mini Cooper get’s great mileage, comes with leather seats, manual transmission, and is one of the best resellers on the market.
  • Finding #5 – People do not understand which things in their home are energy hogs.  They are fairly accurate with light bulbs, stereos, and computers and they actually think laptops use as much as a desktop.  My laptop uses about 25W.  You can barely read the paper by a 25W compact fluorescent light.  What cracks me up is they think the central air conditioner and electric clothes dryer uses only about two or three time more energy than the laptop!  You see that huge hulking plug for the dryer?  The reality is the dryer uses about 100x more energy.
  • Finding #6 – Tuning up your car twice a year saves 100 times as much energy compared to driving 60 mph rather than 70 mph for 60 miles.  First, this is misleading.  My car wouldn’t even use two gallons in that distance for either speed.  Second, who tunes up a car?  That’s from the 1970s and earlier when engine control was mechanical.  Everything is digitally controlled nowadays.  It works or it doesn’t.  I haven’t “tuned up” my car in the seven years I’ve owned it and it gets 34 mpg now like it did when it was new.  Change air filters and keep the tires a few psi below the maximum shown on the sidewall.
  • Finding #7 – People think a truck uses as much energy to move freight as a train does when in reality trucks use about 20 times as much per ton-mile.  This magnitude surprises me.  What’s the difference?  Rolling resistance.  Trains have almost none while trucks have a lot.  The rest is mainly drag and I’m sure stop and go traffic is a killer for trucks as well.  Airplanes use roughly 200 times more than rail.  Is buying carbon credits getting expensive to buy off your guilt for taking an airplane? – Become a hobo.  And isn’t the checked-bag charge for flying stupid?  Shouldn’t people be charged or not based on their weight plus that of all their crap?
  • Finding #8 – A virgin glass bottle doesn’t require a whole lot more energy than a recycled one but the public thinks it does.  My guess is recycling plastics doesn’t save a lot of energy either.  I would also guess recycling paper saves more, somewhere between aluminum and glass or plastic.  Not generating garbage for the landfill is as important as the energy savings to me.

One conclusion out of all this is we need to do a better job of informing end users that saving energy doesn’t mean freezing in the dark or taking a shower once a month.  I would say these concepts apply at least ten times more for commercial and industrial energy efficiency.  There is all kinds of waste in these facilities that do zero to provide better anything.

written by Jeffrey L. Ihnen, P.E., LEED AP





Law of Gravity, Repealed

18 05 2010

Yay!  I’m outside working on my computer for the first time this year.  Alright, who cares?

Every week I plow through news-clipping services to see what is going on, to build my topic list, which is piling up faster than the weeks pass.  This week I had to shelve 4-5 great topics to again take on the recently arisen climate bill.

Many huge utilities and other giant energy users and associations are lauding the Kerry-Lieberman-Graham bill.  These institutions include the American Wind Association, Duke Energy, Dow Chemical, Florida Power and Light, T. Boone Pickens, National Resources Defense Council, Steelworkers Union, Shell Oil, and Westinghouse. 

Support from some of these groups is obvious.  What stinks to high heaven though is the for-profit giants who support this bill.  Company motives are driven by profit.  Per news accounts, I’ve read Dow has done a fantastic job at reducing energy consumption.  My guess is they are stockpiling carbon credits, like AEP has been doing.  Buy low and sell high.  A climate bill will greatly increase the value of carbon credits.  Rest assured, I would say these companies are positioning themselves to make a killing, not save the planet.

Florida Power and Light is a major wind power company.  You may not realize it, but a huge portion of the wind energy generation in Iowa, Texas and all over the place is owned by FPL – probably by their unregulated arm.  They aren’t building wind farms in Iowa and Texas at a loss so they are jockeying for more of the same.

Westinghouse is poised to tee off on the nuclear power business.  I support nuclear power as it is the only realistic ultra-low carbon source of electricity.  Did you know Westinghouse is 77% owned by Toshiba of Japan?  I didn’t think so.

General Electric ditto both FPL and Westinghouse.  T. Boone’s mind changes direction with the wind.  I’m not sure whether he thinks or talks first.  He was going to invest a bazillion dollars in wind power and then reneged for some reason.  Perhaps it was because it costs more to produce than it costs from conventional plants and he realized there aren’t enough Volvo/Subaru/Prius driving boutique energy buyers.  I.e., not enough demand.  Or maybe he thinks cap and trade isn’t going to happen anytime soon.

I have no idea what the steelworkers are thinking.  Actually, most likely it isn’t the steelworkers that are behind this.  The union bosses are probably peddling this and it looks like a pure political play.  Like many environmental groups, unions are political first, and serve their members second.  Why in the world would they want to raise the cost of making steel in the U.S.?  It’s not good for the steelworker.  It IS good for crony politics.

The common thread in all this is: if we just enact this federal bill it will generate millions of jobs and the land will flow with milk and honey.  I can see water running uphill again.  Washington now has power to repeal the laws of gravity.  I was always skeptical of Mr. Newton.  He is Gordon Gekko with long hair.  Just look at them.

I can’t disagree that it will create jobs.  We would have thousands of workers building and installing wind turbines and a bunch of other junk.  But on the macro level, capital will be pouring into these projects rather than real wealth-generating enterprises.

Alternative energy costs more than conventional energy sources, but an electron is an electron.  It doesn’t taste better, look better, do more work, last longer, or drive better.  People will be paying more for energy, which takes spending money out of their pockets.  Artificially making a commodity more expensive cannot increase net prosperity.  Why don’t we just turn off all the aqueducts and canals that feed California and drain the reservoirs?  Instead, build desalination plants to make fresh water.  Creates jobs right?  Just ask the pecan and almond farmer in the valley.

At least with energy efficiency, even lousy projects, consumers pay less, not more.  And the same “benefits” of “creating jobs” exist because somebody somewhere is making stuff for and implementing these projects.

Here is something 99% of the populous probably doesn’t know: the free market has done an amazing job with energy efficiency.  From 1990 through 2005, the U.S. economy has increased energy efficiency to produce an equal quantity of goods and services using 44% less energy!  Energy intensity in Btu per dollar of gross domestic product dropped 44%.  You may be thinking, “Well duh, half our manufacturing has moved overseas and we’ve become a service economy.” Moved where overseas?  China, you may be thinking?  China’s economic energy  efficiency has increased by 66%!  Of about 150 countries reporting, only 4 became less efficient over the period: Congo, Haiti, Saudi Arabia and someplace I can’t pronounce.

The world as a whole has increased economic energy efficiency by 39%, in just 15 years.  That’s about 2.2% per year.  Real demand for power isn’t rising that fast (in the US).  I don’t think there’s an energy efficiency program in the country that saves that much.  There’s no question programs contributed to this, but I know of no programs driving savings in China.

Competition with some nudging from utility programs seems to be doing a fine job driving energy efficiency.  We don’t need a bunch of clueless Washington bureaucratic hacks who wouldn’t survive in the private sector for 6 months telling us what is good for us.