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May 28
Love83

Portfolio Struggling? Paradigm Revolution

By Energy Rant No Comments
I have detected a pattern unfolding across multiple large energy efficiency portfolios: commercial and industrial prescriptive programs are struggling mightily. Why is this? My hypothesis was that we cycled through two or three rounds of lighting upgrades: From T-12 lamps and magnetic ballasts to T-8 lamps and electronic ballasts From once ubiquitous A19 incandescent bulbs to buzzing and dim compact fluorescent To mainstream and end-of-the-road (or world, if reaching goals is life or death) A19 LED bulbs and linear fluorescent lamps Lighting has endured for thirty-plus years for three reasons. First, it’s visible and a simple technology. How many “How…
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Mar 04
Love69

Four Steps to Energy Code Flatline

By Energy Rant No Comments
Energy efficiency program administrators can be quite conservative regarding change and innovation. I love hearing, “Bring us new ideas that have been successful in three or four other programs.” There you are! The pinch is on. Energy efficiency codes and standards have raised the bar consistently such that incremental savings from one code change to the next are exceedingly scarce. The gravy-train days of incremental widget-efficiency improvements, including lighting efficacy and heating and cooling equipment efficiencies, are quickly closing. Vehicles A nice parallel to diminishing returns on efficiency is vehicle mileage. The following chart shows fuel energy consumed per thousand…
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Feb 15
Love0

Specious Beliefs in Code Gods

By Energy Rant No Comments
I received a lot of feedback on last week’s Code Compliance Villains, which described blunders that occurred as part of my high-efficiency boiler installation. Such mistakes would likely erode 50% of the estimated savings claimed in a deemed savings document. Efficiency issues included: Improper outdoor temperature sensor location giving false inputs to the controls. High boiler water temperature setpoints resulting in lower operating efficiency. Heat exchanger piped in parallel, rather than counterflow, resulting in higher boiler water temperatures and less efficiency. The problem with efficient equipment and energy codes is that equipment is tested in the lab, and hands are…
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Feb 11
Love0

Stop Conforming to Waste

By Energy Rant 4 Comments
Two weeks ago, I wrote that efficiency programs are designed to be evaluated. They are not designed to be effective. That quote, or paraphrase, came from the great Val Jensen, Exelon’s Senior VP of Strategy and Policy, as spoken at AESP’s 2019 Annual Conference. Val is great because he is genuine, authentic, and tells it like it is, at least as far as a utility spokesperson can take it. I’d love to hear him if we could remove his utility filter. That would be fantastic. There would be sufficient material for thousands of Rants. Like many things with which I…
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Aug 13
Love0

Modern Efficiency and the Disappearing Clapping Seals

By Energy Rant One Comment
A couple of weeks ago I was directed to an article in AESP’s magazine discussing ways to improve efficiency program cost-effectiveness.  Although it wasn’t about avoided-cost and benefit-cost tests, it provides good stuff for elaborating in this blog. “Cost effective” in the context of the article means lowering the cost per unit of energy or demand saved.  Certainly, this helps to improve benefit-cost ratios, for most of the convoluted tests, that must have been concocted by graduate students under the influence of mind-altering chemicals.  Boy, do I wish we could dial back forty years so we could simply compare the…
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May 09
Love0
program

Program Adoption Curves – Telephones and Televisions

By Energy Rant No Comments
There are certain energy efficiency programs that we are never going to pursue – all those that are in the late majority and laggard stages. Those ships left the pier 10-15 years ago, and we are not going to attempt to catch them. In two words, they are widget programs, up, down, mid, over, under-stream programs of all stripes, including direct install. The previous chart shows theoretical adoption and market share curves. Of course, in reality, adoption isn’t nearly as pretty, as shown in the next chart, which is fascinating. You will want to get your own version of that…
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Mar 07
Love0
DOE

DOE Pumping Standards – Can-a-Corn

By Energy Rant 2 Comments
Apparently, the nauseating term “low-hanging fruit” is not even a relevant idiom. According to Priceonomics.com, low-hanging fruit is all there is these days. Priceonomics says growers have for centuries been developing the modern Frankenfood-producing apple trees of today, but this miserable term lives on anyway. Priceonomics produced the following chart showing the use of four idioms for “easy” in recent decades. First, I must ask, why is pie easy? Making a good crust is as easy as dunking two basketballs at once. And why are fish in a barrel? My choice for replacing the miserable “low-hanging fruit” is “can of…
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Dec 07
Love0

Energy Audits – Segmenting ASHRAE’s Jello, Mashed Potatoes and Gravy

By Energy Rant No Comments
Just about every energy efficiency portfolio offers customers some sort of energy audit. They practically all feature home audits, audits with direct installation of measures, level II audits, feasibility studies and retro-commissioning studies. What are the differences between these audits? As evaluators, implementers, regulators, utilities, and energy users (i.e. everyone reading this), you need to know. Like energy codes themselves, ASHRAE is the source for defining various levels of audits. Audit levels 1, 2, and 3 simply define the rigor and depth of investigation and analysis provided by the audit. I have never liked the ASHRAE definitions because they are…
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Aug 25
Love0

Energy Code (non) Compliance; Could it be… SATAN?

By Energy Efficiency, Energy Rant No Comments
I spent last week at ACEEE’s Summer Study for Buildings, and one topic area I maximumly followed was energy codes and code compliance.  In past years, I would rank codes and standards second to the bottom, just above lighting for my priorities.  The reason for my sudden interest is the vaporizing gravy train of widgets, especially lighting and the need for other savings mechanisms.  Why not code compliance?States are updating energy codes willy nilly to the next rounds of ASHRAE 90.1 / International Energy Conservation Code.  As the Church Lady used to say, “Isn’t that special?”  The problem is the…
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Jul 22
Love0

Energy Efficiency in the USA

By Energy Efficiency, Energy Rant One Comment
Over the weekend I was reading this white paper by ACEEE, and as almost always, a number of responses came to mind.With the passing of years I observe that as people age, they fall into perhaps three categories: (1) the curmudgeons  - the glass is ¾ empty and don’t tell me it isn’t (2) cynical cranks with ideas and (3) Chrissy Snows.  Engineers, for example, fall into the first two groups – or they go to law school, get into politics, and turn into a Chrissy Snow.  Chrissy Snows, as with everyone, are mostly good people, but they live in…
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We talk a lot about energy – from the serious to the satirical.

All things energy. That’s our jam.

We talk a lot about energy – from the serious to the satirical.

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