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energy consumption

Power Factor, Beer, Homes, Buckets, Bridges, and Ladders

By Energy Rant One Comment
The mélange of terms in the title of this post have been used by others to explain power factor. Most of them are awful analogies, and that is what sparked me to attempt to figure this out for myself and explain it, both with more relevance and clarity. But first, why does power factor matter? Because, contrary to what most people would say, bad power factor wastes energy and requires a larger capacity for generation and delivery of electricity. Mathematical Power Factor A couple weeks ago in Power Factor and Toenail Fungus, I provided a brief overview of what causes…
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Grid Power Generation – Stories Untold

By Energy Rant 2 Comments
Most of you reading this owe your lives to the phenomenon described in this post. Therefore, it is worth understanding precisely how grid power is generated, and what it looks like. And of course, you will not find this anywhere else. Rant topics are inspired by reader comments. At AESP National, a young gentleman approached me to say the Rant provides good information that is easy to understand and read. He referenced a Greentech Media Energy Gang podcast, which explained as much. At the ~50 minute mark of the podcast, they explain that learning how things work, and being able…
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Energy and Demand Resource Soup

By Energy Rant 2 Comments
The AESP 2017 National Conference is in the rear view mirror. While I was, unfortunately, not able to attend many sessions, most of that time was spent talking with a lot of people. I absorbed a lot of information and hopefully some wisdom. This post discusses the increasingly complex and intertwined electric grid. Shifting Role to Grid Managers My findings from the conference jive with a recent article I read in Public Utilities Fortnightly (PUF). The subject of that article was the Power of Innovation, a utility executive’s roundtable that included representatives from Edison International, Exelon, Duke Energy, Oncor, Southern…
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Benchmarking Clowns

By Energy Rant One Comment
It’s Halloween. Hundreds of thousands of people have to figure out a different costume because a clown plague has infected the country. While I don’t consume tabloid news, I did hear that in some cities, the clowns are getting beat up. I thought, now that isn’t a bad idea, but I wouldn’t advise that. When I was a kid, Halloween antics included dozens of mushy tomatoes and cucumbers left behind in the garden. These have the impact of water balloons, and they make a fine mess. For this post, I referenced my program booklet for ACEEE’s 2016 Summer Study on…
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Automated M&V – In Your Dreams

By Energy Rant No Comments
Last week, we explored the state of EM&V 2.0 and its considerable, to say the least, constraints. This week, we look more intensely at fallacious “automated M&V”. Automated M&V is an oversold and over-hyped concept. When something is automated, it takes inputs (data) from various sources, often hundreds of sources, with high frequency, maybe by the second or on a Hertz (many times per second) scale. Then the brains of the automated doohickey compute and translate the data into solutions or outcomes. For buildings of all types, from single family homes to large commercial and industrial facilities, automated systems are…
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Commercial Code Compliance and New Construction Program Failures

By Energy Rant 3 Comments
Earlier this year, the Energy Information Administration (EIA) released its Commercial Building Energy Consumption Survey of 2012. The prior release was 2003. The data do not paint a pretty picture for energy code effectiveness. Other data we are accumulating indicate new construction programs are failing to deliver. Regress At first glance, it seems substantial progress may have been made between 2003 and 2012. The first chart is from the EIA website. As EIA states, “the only statistically significant changes since 2003 are for office buildings, education buildings, and commercial buildings overall.” That is weak, especially considering that the data cover all…
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Building Energy Models – Less Useful Than You Think

By Energy Rant One Comment
The convergence of several issues, and AESP’s Summer Conference, Technology – The Great Game Changer, gave me no choice. I have to do this – talk about the many issues involving building energy models, which are used for everything from single family homes to high rise office and apartment buildings. I prefer the term simulation over model for these detailed and very complex computer models. In this post, Simulation = Energy Model. A Good Excuse for a Simulation The best use of an energy simulator is when there is nothing else to work with. When is there nothing to work…
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monitoring

Customer Success and Satisfaction – Monitoring Required

By Energy Rant No Comments
The source of this post is a report by Northeast Energy Efficiency Partnerships (NEEP), Next Generation Energy Efficiency. The direction of things going forward, as described in the report, is boiled down to a few key themes noted in the introduction: Deep comprehensive cost-effective savings for all fuels Controls and other intelligent efficiency technologies Advanced building designs with superb installation, operation, maintenance and control Integration of energy efficiency, demand response, and distributed energy Engagement of the private sector to deliver high efficiency products and solutions No widgets. A Bulbous Barrier First, I want to discuss a substantial, bordering on major,…
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Distributed Energy; Batteries and Bread Machines

By Energy Efficiency, Energy Rant 3 Comments
The Association of Energy Services Professionals (AESP) Summer Conference included interesting bookend plenary discussions for this post.  The opening plenary featured motivational speaker, Murray Banks; not to be confused with Matt Foley: “eating a steady diet of government cheese and living in a van down by the river”.  Actually, if triathlons and mountaineering were auto racing, the Banks family would be the Andrettis. The closing plenary featured representatives from SolarCity, Opus One Solutions, and Enbridge, Inc.  SolarCity is the Elon Musk-owned photovoltaic manufacturer/installer.  Opus One is a smart grid software company with ties to Tesla as well.  Enbridge is a…
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HVAC’s Cure for Cancer

By Energy Efficiency, Energy Rant 2 Comments
In January, I wrote about code compliance and that while energy codes keep ratcheting down energy intensity in theory, reality is misery.  That post was a thinly veiled advertisement for my AESP National Conference session in the Lion’s Lair, and that presentation can be seen here.  My Lion’s Lair proposal was a thinly veiled pitch to fix what would be the equivalent of curing cancer for commercial HVAC systems. The cancer is the widely used variable, air volume system.  Another boondoggled application of one such system triggered this post.  The boondoggle was part of an evaluation we are doing on…
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