Energy Efficiency
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Case Studies
Installation is the Innovation: Unlocking Heat Pump Performance
Case Studies
By integrating customer insights and system performance data, ILLUME helped Georgia Power uncover how installation practices determine whether inverter-driven heat pumps…
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Articles
A Future Without ENERGY STAR: What’s at Risk and How We Can Respond
Articles
At ILLUME, many of us have built our careers around energy efficiency. For some, like our Co-Founder Sara Conzemius, that journey…
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Webinars
Energy Changemakers
Webinars
Regional Energy Efficiency Organizations (REEOs) play a pivotal role in enabling energy efficiency initiatives across the United States. In this webinar,…
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Case Studies
The Intersection of Food Deserts and Energy Efficiency
Case Studies
The ILLUME team led a research study to support the launch of SoCalREN’s new Food Desert Energy Efficiency Equity (FDEEE) program.
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Case Studies
Addressing Challenges in Heat Pump Water Heater Adoption
Case Studies
ILLUME conducted an ethnographic research study to explore the magnitude of installation challenges for heat pump water heaters (HPWHs) in cold-climate…
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Articles
Rethinking Energy Efficiency Programs for Cooking Electrification
Articles
ILLUME’s recent participation at the 2023 Behavior, Energy, and Climate Change (BECC) conference showcased Director Dr. Liz Kelley’s presentation on induction…
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Reports
Cold Climate Installation & Water Heater Installers
Reports
NEEA hired ILLUME Advising to pursue two concurrent studies around water heater installers. The first was intended to focus on observational…
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Case Studies
Heat Pump and Integrated Controls Performance Review
Case Studies
Heat pumps are on the rise in the Northeast, with Massachusetts offering incentives for electrifying home heating and reducing reliance on…
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Magazine Articles
Georgians Transforming the Lives of Neighbors: An Interview with Eric Arnold
Magazine Articles
Georgia Power’s approach to energy efficiency is redefining how to engage, one neighborhood at a time.
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Magazine Articles
Heat Pumps Take Center Stage
Magazine Articles
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Magazine Articles
COVID-19 is Making Us Sick, Energy Efficiency is Part of the Cure
Magazine Articles
Energy efficiency has many benefits. Air quality is one of them. In a new era of pandemics, our old resource gets…
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Articles
Cooking With Gas (Or Not)
Articles
In this blog by ILLUME Founder, Sara Conzemius, she talks about how became an induction cooktop convert after loving a gas…
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Case Studies
Eliminating Energy Program Participation Barriers
Case Studies
An ILLUME study reveals that homeowners are nearly 20% more likely than renters to be aware of their utility’s energy efficiency…
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White Papers
Beyond Awareness
White Papers
Engaging nonparticipants can be challenging, and in some cases can seem nearly impossible. Yet doing so is increasingly important as we…
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Case Studies
Testing the Efficacy of Home Energy Reports
Case Studies
Drawing on statistical methods from biomedical research, ILLUME applied meta-analysis techniques to measure savings from home energy report (HER) programs to…
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White Papers
Addressing Multifamily Hesitance to Participation in Energy Efficiency Programs
White Papers
This paper will build from the research and experience in three northeastern states to identify barriers to participation related to housing…
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Reports
Behavioral Programs Come of Age: A Final Report
Reports
This report first describes the research methods used, then summarizes the results, and finally concludes with a brief discussion of reporting…
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Articles
Time Well Spent: Empowering Contractors As Trusted Messengers Of Innovation
Articles
At ILLUME, we are researchers and experts on how to save energy through programs. We are also homeowners and utility customers,…
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Articles
Translation or Transcreation?
Articles
As the energy efficiency industry continues to emphasize equitable program engagement, we’re learning what utilities can do to better serve customers…
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Case Studies
From Energy Efficiency to Demand Impacts
Case Studies
As the need for demand mitigation increases, how can utilities and program administrators extend energy efficiency portfolios to increase demand impacts?
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Articles
Workforce Development as Economic Agency
Articles
Much of our recent research has explored how vulnerable communities lag behind affluent communities in receiving benefits from distributed energy resources,…
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Magazine Articles
CenterPoint Doubles Down on Data to Deliver Smarter Programs
Magazine Articles
How does a utility, operating across multiple verticals, create an intelligence platform for decision making?
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Podcasts
Interview with Terrilyn Simmons
Podcasts
Sara Conzemius talks with Georgia Power’s Terrilyn Simmons about the utility’s efforts to promote energy efficiency, diversity, and the importance of…
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Case Studies
Residential Nonparticipant Market Characterization and Barriers Study
Case Studies
ILLUME conducted primary research for the Massachusetts Program Administrators and EEAC to characterize Mass Save residential nonparticipants, investigate barriers to participation,…