The Northwest Energy Efficiency Alliance (NEEA) is updating its estimate of the market size for residential televisions in the Northwest. To conduct the assessment, NEEA contracted with Cadeo Group to review two underlying assumptions that are incorporated in the estimate: the useful lifetime of televisions (that is, the amount of time a product is in use before it is replaced) and the percentage of television sales attributed to commercial applications. Between November 2020 and January 2021, Cadeo reviewed secondary sources, NEEA’s calculations and resulting estimates to assess whether NEEA’s assumptions are reasonable given available data.
The review determined that NEEA’s current useful lifetime estimate of seven years is appropriate. In addition, findings suggest that while NEEA’s approach to estimating the proportion of television sales attributed to commercial applications is appropriate, there are newer data inputs available that warrant NEEA updating its assumption for commercial sales from 7.2% to 6.1%. NEEA plans to update its planning assumptions based on these recommendations.
This report was updated on February 14, 2024. A previous version included an assumed lifetime for televisions from a 2017 Fraunhofer CTA Report. Its inclusion was an error because the Fraunhofer report referred to the average age of televisions in the installed stock, not the average lifetime of televisions. This reference has been removed. The correction does not change Cadeo’s conclusion that “NEEA’s current estimate of a 7-year lifetime for televisions is within the reasonable range of current assumptions in the available literature and consistent with RBSA data reviewed by the team.”
