case study


March 2023
ILLUME investigated the market actors that have the power to influence electrifying the residential sector to better understand the barriers that exist for market transformation and the intervention opportunities available. Read our findings in this case study.

March 2023
To reach our industry’s ambitious carbon reduction goals, technology has to work for the environment and for people. In this case study posted last year, ILLUME explores how integrated controls foster beneficial electrification and what contractors and residents need to adopt these technologies.

February 2023
ILLUME was commissioned by a utility client to conduct research on their customers, with a particular focus on renters, that are not participating in their programs to understand the barriers to participation. In this case study, read ILLUME’s recommendations for how the utility might extend its reach and engage those customers more.

January 2023
Disadvantaged communities face numerous barriers when accessing clean energy and climate adaptation services. To overcome these barriers, NYSERDA enlisted ILLUME to understand these barriers and transform them into opportunities. Read about our findings and recommendations in this case study.

December 2022
Are Home Energy Reports (HERs) still an effective source of energy savings for residential customers? Drawing on statistical methods from biomedical research, ILLUME applied meta-analysis techniques to measure savings from HER programs to answer this question. Read about our findings in this case study.

November 2022
Utilities have a competitive advantage in offering new technologies to customers. In this ILLUME case study, we share tips to identify new technology value propositions and share a systematic approach to understand the market.

November 2022
Determined to find better ways to connect with underserved customers in the Chinese, Korean, Vietnamese, and Latine communities, a utility company hired ILLUME to help them understand the best approaches towards understanding customer attitudes towards energy efficiency equipment, programs, and offers. Read the case study to find out how.

September 2022
When thinking about EVs, range anxiety continues to be one of the main concerns for adoption. Is adding more chargers the solution? ILLUME led research to evaluate and understand the market impact of National Grid’s EV charging incentive program in 2020. Read our findings in this case study from last year.

August 2022
As folks continue to consider heat pump water heater adoption as a source of energy efficiency and savings, we look back on this case study from last year. Read how ILLUME found valuable learnings about the customer experience in our evaluation of a pilot to assess the magnitude of demand impacts and energy savings from water heater-based demand response (DR).

August 2022
ILLUME is proud to support KIGT by conducting a case study of opportunities and barriers to equitable infrastructure investment through the lens of KIGT’ s experience building and installing electric vehicle charging equipment.

July 2022
How can utilities bring new technologies to customers and create a more positive customer experience? Read one of our 2021 case studies to learn how ILLUME provided a client visibility into the customer’s journey – from the initial point of interest to the adoption – to create an improved and integrated new technology adoption experience.