Articles by Rebecca Thatcher Ellis, P.E.

Commissioning: On-Board Equipment Controls Integration

February 1, 2010
Design engineers need to step up how their specs sort out sequencing details.
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Commissioning: Controls Design Timing

January 1, 2010
There’s a right stage for every delivery method, but it may be sooner than you think.
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Commissioning: LEED®, Commissioning and Energy Conservation

December 1, 2009
Most versions of the USGBC’s LEED® rating system include prerequisites for minimum energy performance and for commissioning. These two critical criteria, however, are not explicitly linked, and I believe LEED certification may be more meaningful and effective if they were.
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Commissioning: Commissioning & Energy Conservation

October 1, 2009
Having the first doesn’t guarantee the second, but the second is much more difficult without the first.
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Commissioning: Testing Frustrations

September 1, 2009
Face time and prep time might have kept this test on course.
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Commissioning: Trend Log or Ongoing Monitoring and Optimization

August 1, 2009
Pick your points and select your scope to avoid getting overwhelmed.
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Commissioning: Trend Log Analysis II

July 1, 2009
In which a mysterious five-degree difference is a $4,400/yr anomaly.
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Commissioning: Commissioning And Incomplete Design Documents

May 1, 2009
What if the building starts before the design is finished?
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Commissioning: Trend Log Analysis

May 1, 2009
How to spot performance problems hidden beneath the surface?
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Commissioning: When There Is No O&M Representative

April 1, 2009
At the least, determining what general maintenance model will be used can pay off later.
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