Transcript Puget Sound CFL Saturation Study: Storage Rate Eric Brateng/Bobbi Wilhelm

Puget Sound CFL Saturation Study:
Storage Rate
Eric Brateng/Bobbi Wilhelm
RTF Meeting, May 5, 2009
Nov 9, 2007 RTF Presentation Overview
Study Review
Research Objectives & Questions
Approach & Process
Research Outcomes
Key Findings
Key Opportunities & Recommendations
Where We Go From Here
Research Objectives
To quantify standard (one-inch) screw-base
sockets and the current placement of CFL bulbs,
by room, fixture type, and control type; and
To quantify the saturation of CFL bulbs and
assess consumer likelihood of installing
additional CFL bulbs where they have not
already done so.
The Survey
Mail survey
PSE, SCL, and SnoPUD service areas
Methodology
Pre-survey letter
Survey Packet
Reminder Postcard
$10 gift card
21% response rate
n=1,488
Another Finding not Shared in 2007
We asked…
When did you last buy CFL bulbs?
How many of those CFL bulbs did you buy?
How many of those CFL bulbs did you
Install in your home?
Put in storage for later use?
Install at your place of work or business?
63% of purchased CFL Bulbs installed
Placement of Last Purchased CFL Bulbs
C FLs Put
in
Storage
37%
C FLs
Installed
at Work
1%
C FLs
Installed
in Home
62%
n=1,064
12% Removal Rate imbedded in current 33 kWh
Since the 12% removal rate was
adopted…
CFL quality improved dramatically
Product availability and variety have
increased
Consumer acceptance is more widespread
Consumers are now purchasing CFLs like
how people purchased incandescent bulbs
37% Storage Rate
Proposal to substitute removal rate with a 37%
storage rate
Effect would drop CFL savings from 33 kWh to
about 24 kWh
Perhaps a shelving rate is more applicable?
Discussion…
If you want a copy of the report…
Send email to [email protected]