A process, marketing and outcome evaluation was undertaken of Boston Edison's WattBusters program.
This program is aimed at fostering water heating, lighting and other types of electric energy efficiency
among residential customers.

The approach and data collection methods used to conduct the evaluation were multifaceted including:
participant and nonparticipant surveys, on-site inspections of households, and billing analysis.

The findings indicated that the program was successful in a number of ways: it reached a broad range of
the target market, most measures targeted for the program were installed and are still in place in good
working order, participants are satisfied and believe the program has saved them energy, and,
corroborating participant's beliefs, statistically reliable evidence of the program's energy impact exists
based on independent analysis of utility billing records.