Jennifer Chiodo

Recent Posts

Using Market Smarts to Enhance Energy Efficiency Program Evaluation

Posted by Jennifer Chiodo on May 30, 2018 2:30:00 PM

Generating Market Demand

The purpose of energy efficiency programs is to cost effectively generate market demand for energy efficiency that would not be achieved without market intervention. An energy efficiency process evaluation investigates the effectiveness of programmatic interventions through qualitative and quantitative analysis. Marrying the analytical engineering-based approach of impact evaluation with the typically more social science orientation of traditional process evaluation can generate useful, actionable results to help program administrators improve market interventions to increase participation, depth of savings, and market transformation.
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Topics: Energy Efficiency, Evaluation Measurement & Verification (EM&

Earth Week - It's Not Enough

Posted by Jennifer Chiodo on Apr 25, 2018 10:00:00 AM

First, let me acknowledge that my own life is harming the planet on which we live. I drive a car, I buy stuff packaged in plastic, I have pets – all things that I know to have a negative impact on the planet that sustains me, my family, my friends, and everyone else.

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Topics: Sustainability

Who is Responsible for Low Energy Code Requirements for Lighting?

Posted by Jennifer Chiodo on Mar 14, 2018 2:00:00 PM

I have repeatedly blogged about my concerns with the current and future energy codes because the codes are not keeping up with technology for lighting efficiency (see my previous blog posts titled “Why are Lighting Energy Standards Decreasing” and “More Issues with the Energy Code – Lighting is Running Rampant”).  The graphs below, developed by our friends at Optimal Energy, show some comparisons of Department of Energy (DOE) predicted efficacies for lighting technologies and the efficacy needed to meet code for some common space types.

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Topics: Public Policy, Standards and Metrics, Building Performance & Technology

Building Retrofits: The Retrocommissioning Approach

Posted by Jennifer Chiodo on Feb 21, 2018 1:28:36 PM

If you're the owner or manager of an older commercial building, you may wonder if retrocommissioning is right for your building retrofit. You are not alone.

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Topics: Building Performance & Technology

Designing Buildings for Resiliency To Accommodate Power Failures

Posted by Jennifer Chiodo on Nov 1, 2017 10:00:00 AM

I’m writing this blog from the floor of the Andover Public Library in Andover, MA. After a major windstorm, power is out all over New England and people are scurrying for the few available power outlets and sources of internet.

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Topics: Building Cx & Design Review, Public Policy

An Energy Efficiency Horoscope

Posted by Jennifer Chiodo on Jul 26, 2017 10:00:00 AM

Imagining an energy efficiency horoscope for three of its most promising players …

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Topics: Energy Efficiency

Dangers of TMY3 Data in an Era of Changing Climates (Part 2)

Posted by Jennifer Chiodo on Mar 8, 2017 12:00:00 PM

Hi, it’s me again – two blog posts in a row!  I still haven’t had the time to compile the full TMY3 comparison picture that I envisioned when I started this rant. (See my last post if you want to learn the TMY3 basics.)

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Topics: Standards and Metrics, Evaluation Measurement & Verification (EM&

Is Typical Meteorological Data Relevant for Energy Analysis? (Part 1)

Posted by Jennifer Chiodo on Mar 1, 2017 10:00:00 AM

When we undertake energy analysis for commercial building energy retrofits, retro-commissioning, and even new construction projects, we normalize the energy savings to try to reflect average savings over the life of the measures.  For measures like HVAC upgrades, savings are usually weather-dependent.  The industry has used Typical Meteorological Year (TMY) data as the basis for weather normalization.  These TMY data are generated by the National Renewable Energy Labs (NREL) and include actual weather data that is determined by NREL to be representative of typical weather over time for each month.

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Topics: Sustainability, Evaluation Measurement & Verification (EM&

More Issues with the Energy Code – Lighting is Running Rampant

Posted by Jennifer Chiodo on Jan 18, 2017 10:00:00 AM

I’ve been writing for a few years about the deficiencies in current energy codes regarding commercial and industrial (C&I) lighting efficiency requirements.  The problem isn’t fixed, even though I hear people decrying how the code is so stringent, they won’t be able to design buildings that exceed it. 

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Topics: Standards and Metrics, Energy Efficiency

LED Lighting as the Future of Demand Management

Posted by Jennifer Chiodo on Nov 30, 2016 10:00:00 AM

I had hoped to share my recent sci-fi story about future decisions that might need to be made around a demand-constrained grid in the era of extreme heat waves and self-driving electric vehicles.  But, fiction is not the point of this blog.  If you want to receive a copy of the story, feel free to request it – we monitor comments.  In this post, I’ll discuss a little of the back-and-forth we’ve been having regarding the New England Grid [PDF] and demand constraints. 

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Topics: Sustainability, Energy Efficiency

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