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Feb 08
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Indestructible Code Compliance Villains

By Energy Rant No Comments
In case you missed last week’s post, you’ll need to go back and review the setup for this week’s demonstration of code challenges and mistakes. To summarize, I have an installed ENERGY STAR-qualifying 95% AFUE (efficient) boiler with a brazed plate heat exchanger, hot water reset control, and a variable firing rate that ranges from 20% to 100%. That firing range is even better than code requirements. The system is a duded-out energy code breaker in theory. Let’s look at what went wrong in order. I have a Nest cam in the backyard and a Nest thermostat for the boiler.…
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May 29
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Tele-Phoney Nincompoops; Efficiency Pros – Your Jobs are Safe

By Energy Rant 2 Comments
There is more computing power in your pocket than we used to put a man on the moon. Have you heard this lately? I heard it last week at the closing plenary for AESP’s spring conference. Doesn’t it sound grand? Aren’t we smart? Not really, and not so much. Do Smart Phones Make us Dumb? Do smartphones and their apps make us dumb? Maybe not, but unlike the fairy tale that coffee stunted our growth as children, the drones do stunt cerebral, intellectual, and social growth for sure. For example, people consult with their bestie drones 80 times per day…
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Jul 13
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Evaluation, Measurement and Verification; From a Neander Cave

By Energy Efficiency, Energy Rant No Comments
A title like Lies, Damned Lies and Modeling: Energy Efficiency’s Problem With Tracking Savings sounds like a natural fit for The Energy Rant, and in this regard, it did not disappoint.  Contributions to the article can be summarized as follows: professionals serving the evaluation, measurement and verification (EM&V) business are Neanderthals.  Having just discovered the open flame, these grunting upright creatures appear to be working on their next great discovery: rolling objects. Okay smarty pants.  The challenges for EM&V professionals can be boiled down to two words: Money Access  Little Money The article describes the fact that too much EM&V…
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Jun 23
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Cooling System Temperature Control- No Savings

By Energy Efficiency, Energy Rant 5 Comments
Let’s skip the energy supply side this week and talk about thermostats used for cooling. Let’s broaden the discussion to include both programmable thermostats and “smart” or “learning” thermostats. The Nest falls into the latter group. Speaking for the Nest, which I have controlling my heating and cooling, it will learn user patterns by when, and to what level, the user changes temperature setpoints. It also secretly learns the users’ occupancy patterns by keeping an infrared eye on them. For instance, if the thermostat is in a heavy traffic area, it will learn to expect a lot of traffic, and…
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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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