We interrupt this rant for this special announcement. Our cold spring in the northern plains is wreaking havoc in the form of tornadoes in the southern and middle parts of the country. I think the weather phenomena had a lot to do with my interest in mechanical engineering. Growing up on the farm in the flatlands, I had seen a great many black clouds approaching on the horizon. As they drew closer, they would either brighten to a lighter gray and rain, or they get ugly. If the approach is led by a dark band of clouds followed by blue-green…
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Back in August I came close to posting a blog “Enough of the Empire State Building Already” but that one faded away. In case you never read anything about energy savings and sustainability, the building is undergoing a $20 million renovation to improve energy efficiency. The project would shave the facility’s $11 million energy bill (a cool $4 per square foot) by 38%. Johnson Control ran ads in every trade magazine I get and various publications, including major newspapers, ran articles by the dozens. Coming in a close second to the Empire State Building was the Northland Pines High School…
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I was pretty much like every other 12 year old boy. I liked fire, explosions, and crashes. If you think I’m crazy, why are movies sometimes beginning to end filled with the same? Enough said. Growing up on the farm there were always plenty of things to burn. One time I asked my dad if I could burn an old cattle feeder that we no longer used. No problem. You never see these things anymore but they were wood structures, like a weekend cabin that could withstand an F4 tornado, except it was all wood, nails and fasteners – solid…
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Many posts ago, I wrote “The More You Spend, The More You Save” explaining how poor system control wastes energy but results in even greater energy savings for efficient equipment. For example, consider an air handling system that wastes heating energy provided by an efficient boiler. The boiler saves x% versus a conventional model, so x% multiplied by greater use (wasted energy) results in “more” savings. Recently I picked up on buzz that argues greater efficiency results in greater energy consumption. At one point I recall reading in the Wall Street Journal an editorial that argued more efficient vehicles just…
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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…
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A couple weeks ago I beat up electric automobiles for being overpriced and unpractical due to their short driving ranges and cripplingly long charge times. This week I present a saner approach to substantial energy and emissions reductions. The electric car is the equivalent of installing renewable energy sources before making conventional systems and technologies as efficient as possible in buildings. Like buildings, we can cost effectively cut personal transportation energy consumption substantially, without sacrificing anything with readily available technologies - rather than pouring gobs of money into technologies that are just five years away from prime time; like they…
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I hate electricity. I love what it allows me to do but I just don’t understand it. I sat through an in-house safety training session on arc flash, which I actually understood – there is a huge burst of energy through a “fault” that melts and actually vaporizes the copper conductor, which expands 7,000 times at Mach 2 and 1 million degrees F (made up numbers but the premise is correct). It’s one heck of an explosion. During a break I was asking our electrical engineers what the difference between a neutral and ground was, the flow of electrons, the…
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Talk about an oxymoron. Years ago this was a favorite saying of my roommate and I as we lambasted dopey ads on TV, on paper, or over the airwaves. Fewer years ago, once I got into this energy efficiency profession, I was speaking with a utility energy-efficiency program guy who frequently interacts with regulators. This was during a stakeholder meeting for quantifying energy saving potential by sector and by technology. (technology = lighting, furnaces, chillers, etc.) Knowing buildings systems rarely work as they are supposed to, I asked, “Have you considered retrocommissioning (RCx) as an energy efficiency program?” His answer…
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My mother used to tell me I ought to be a lawyer because I would argue and/or complain about everything. I think I still get under her skin sometimes, even as she has passed her 75th birthday. She SAYS she still likes me to visit anyway. The thing is, my brain is hardwired to make everything as efficient as possible. Perhaps this is due to my growing up on a large farming operation where there was always more things to do than time to do it. Let’s see…, sounds like my present job. Some past and present obsessions: Save as…
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