Skip to main content
Tag

technical reference manuals

Energy Program Evaluation Tales from the Dark Side

By Energy Rant No Comments
The Energy Rant is not for the weak-kneed who prefer to live in the land of unicorns, fairy dust, and lollipops. This week is no exception.This Rant is brought to you by the recent ACEEE paper, Recent Developments in Energy Efficiency Evaluation, Measurement and Verification. Burned on the Alter of 90/10 A major objective of most evaluation contracts is to punch the 90/10 ticket. To recap, 90/10 simply means there is a 90% chance that the results of the population, if evaluated in full, will be within plus or minus 10% of the results for the sampled, studied projects. As…
Read More

Program Evaluation – Most Excellent Avocado Practices

By Energy Rant No Comments
Everyone has applied for health insurance, and many of you have applied for life insurance. Anyone over, oh, 40, 50, or for sure 60, knows health flaws start to accumulate like the dumpster’s worth of unwelcome gifts, used shoes, and outdated clothes for those of you who stay current with the style trends of the day.Come to think of it, all you digital natives, back in the day before weddingregistry.com (where you shop and make other people fill your house with stuff you want), we just took whatever the aunts, uncles, or more especially, great aunts and uncles, decided to…
Read More

Deemed Savings and the Variable Frequency Drive

By Energy Rant No Comments
In recent years, there has been a push by some intervenors and program implementers to move larger and larger, and riskier measures from custom efficiency into prescriptive buckets.  These include air handling system replacements, control system replacements, and of course, the variable frequency drive. To make sure everyone is on board, prescriptive savings are determined for a specific piece of equipment, or determined by preset formulae with some combination of stipulated (assumed) values and project-specific information.  This is opposed to custom savings calculations that are estimated by an engineer/philosopher according to the project specific application. Uncertainty If there are two…
Read More

Energy Efficiency Professionals – FIFA V NFL

By Energy Efficiency, Energy Rant One Comment
I remind and inform people from time to time that my career in this industry consists of three distinct eras.  In the first era, lasting about five years, I was running, climbing, crawling, and digging around in commercial and industrial facilities for comprehensive energy assessments and studies.  This included gobs of energy analyses, simulations, and fairly complex cost estimating.  The second era included essentially mentoring others to do the same, plus reviewing thousands of calculations and hundreds of reports.  The third includes business development, program development, implementation, and evaluation – with a much grander view of the industry.  In the…
Read More