Regional Technical Forum Meeting

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Puget Sound CFL Saturation Study

• Regional Technical Forum Meeting
• November 9, 2007

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Presentation Overview

• Study Review
• Research Objectives Questions
• Approach Process
• Research Outcomes
• Key Findings
• Key Opportunities Recommendations
• Where We Go From Here

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STUDY REVIEW
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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.

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Research Areas

• Remaining Potential
• What is the remaining potential for CFLs by
  household, room, fixture type and control type?
• How much of this is technical potential and how
  much is attainable?
• Future Program Design
• How can the data and information collected
  through this study be used to plan future utility
  programs focused on residential lighting?

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Defining Potential

• Attainable Potential the number of CFL bulbs
  individuals are willing to install today
• Achievable (long term) - could be influenced by
  programs or media messages
• Attainable (short term) - willingness to install
  CFLs today
• Technical Potential the number of CFL bulbs
  individuals could install today

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Study Approach

• Secondary Research Review (Sept Nov 06)
• Identified key research questions to ask
• Identified methodology pros and cons
• Mail-Based Survey (Nov 06 June 07)
• Expert consult, pre-test pilot-test
• Response bias check (telephone interviews)
• Data accuracy check (in-home audits)

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Survey Implementation Process

• Introductory letter mailed to sample (Week 1)
• Survey packet mailed (Week 2three days later)
• Cover letter
• Survey booklet
• Reference card
• Return envelope
• Incentive request card
• Reminder postcard mailed (Week 3)
• Respondents provided two weeks to return
  materials

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Response Bias Check

• Telephone interviews conducted with 14 of (n39)
  pilot non-respondents (285 out of 375 sent
  survey)
• In comparison to respondents, non-respondents are
• 10 years younger
• Slightly more likely to own their house
• The same on income, education, housing type and
  gender
• Determined that no survey changes were required,
  survey implementation began

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Sample Disposition
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Data Accuracy Check

• In-home audits conducted with 10 SnoPUD pilot
  survey respondents
• 40 under-reporting of sockets and CFLs
  installed
• Saturation levels unaffected
• Potential positive effect of utility staff
  presence on willingness to install CFLs
• Manual review of data
• From pilot small change made to instruction card
• From full survey threw out 4 of (n70) surveys
  for bad data

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KEY FINDINGS RECOMMENDATIONS
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Key Finding 1

• Opportunity exists for more CFL installations

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Sockets, CFLs CFL Saturation Levels
Average Household Saturation Avg of all
reported household saturation levels (HH1Sat
HH2Sat HH1488Sat) / 1488 Total Service
Area Saturation ( of all CFLs in service
territory) / ( of all sockets in service
territory)
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Recommendation 1

• Encourage installation of additional CFLs
  throughout the house.

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Remaining Potential, Household
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Remaining Potential, Rooms (weighted)
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Remaining Potential, Fixtures
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Remaining Potential Planning Estimates
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Remaining Potential Planning Estimates, Puget
Sound Energy
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Remaining Potential Planning Estimates, Seattle
City Light
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Remaining Potential Planning Estimates, Snohomish
County PUD
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Recommendation 2

• Continue to facilitate consumer purchases through
  utility CFL rebate and coupon programs.

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Consumer Purchasing Preferences - Coupons
Rebates
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Key Finding 2

• CFL programs should be targeted

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Recommendation 3

• Develop a strategy that focuses on encouraging
  individuals in the multifamily sector to try CFL
  bulbs for the first time.

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Distribution of CFLs in Households
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Zero CFLs - Demographic Comparison
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Recommendation 4

• Promote the use of CFL bulbs in low saturation
  rooms in marketing messages.

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Average Saturation Level by Room
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Remaining Potential, Rooms (weighted)
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Recommendation 5

• Promote and provide information on all specialty
  bulbs currently available and continue efforts to
  promote development of specialty bulbs not yet
  available in the market.

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Specialty bulbs anything but standard screw
base CFLs
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Sockets per Fixture Type, Household

• 18 of sockets are in recessed cans
• Surface mount or hanging fixtures and table or
  floor lamps may also require specialty bulbs

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Saturation per Fixture Type, Household

• Recessed can fixtures had saturation levels of
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• Saturation levels for sockets requiring specialty
  bulbs could not be calculated through this study

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Sockets per Control Type, Household

• 20 of sockets are controlled by either dimmer,
  sensor or 3-way switches
• Specialty bulbs may be required to function with
  these controls

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Sockets per Control Type, Dining Room

• High energy use, low saturation room
• 45 of sockets controlled by dimmers
• Over 25 of household dimmer-sockets are located
  in the dining room

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WHERE WE GO FROM HERE
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Utility Collaboration

• Research
• Lighting Research
• CFL Saturation Update
• Other Research
• Other Programs
• Marketing
• Program Design/Delivery
• Product Development
• Specialty Bulbs
• Other
• Other?

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