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Seattle City Light Residential Sector

“C”. Seattle City Light Residential Sector. Background: Key Facts from the RCCS February 2013. Residential Customer Characteristics Survey.

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Seattle City Light Residential Sector

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  1. “C” Seattle City LightResidential Sector Background: Key Facts from the RCCS February 2013

  2. Residential Customer Characteristics Survey • Data from the 2009 Residential Customer Characteristics Survey (RCCS) is summarized below. The RCCS was a mail-out survey to randomly selected residential customers. A total of 2,356 surveys were returned. • Provided below is data relevant to some of the specific questions posed by the Review Panel and additional examples of the data found in the RCCS (available on the web) • http://www.seattle.gov/light/Conserve/Reports/Evaluation_15.pdf and http://www.seattle.gov/light/Conserve/Reports/Evaluation_16.pdf

  3. Accounts & Building Types Total Residential Accounts: 100% 360,000 (approx) (Source. 2011 Annual Report.) Single-Family 51% 183,600 Multiplex (2- to 4-unit) 11% 39,600 Multifamily (5+ units) 38% 136,800 3

  4. Electric Space Heat Saturation % of living units that use electricity as their primary source of space heat Single-Family 22% Multiplex (2- to 4-unit) 54% Multifamily (5+ units) 85% 4

  5. Water Heat Saturation % of living units that use electricity as their primary source of water heat Single-Family 54% Multiplex (2- to 4-unit) 60% Multifamily (5+ units) 76% 5

  6. Water Heat Saturation: Trends 1978-2009 6

  7. Appliances & Electronics 32% of single-family customers have more than one refrigerator Computers 1.7 per household 12% reported none 7

  8. Lighting: CFLs Only 10% of single-family customers reported having no CFLs, compared to 24% of multifamily customers. 8

  9. CFLs: Increased Saturation 2007 - 2009 CFL Bulbs Installed: From 2007 CFL Saturation Study & From 2009 Residential Survey 9

  10. Windows & Insulation Customers reporting having all double pane windows, by space heat source 62% electric 60% natural gas 58% fuel oil Customers reporting having crawl space/basement ceiling fully insulated, by space heat source 48% electric 36% natural gas 24% fuel oil 10

  11. Electric Energy Use Per Household Average consumption, kWh per year All Fuels Single Family (SF) 11,165 Multiplex 9,549 Multifamily 7,119 Electric Space Heat Single Family (SF) 16,215 Multiplex 11,896 Multifamily 7,523 SF - electric space heat 16,215 SF - non-electric space heat 9,689 11

  12. Electric Energy Use Per HouseholdTrends 12

  13. Electric Energy Use Per HouseholdAll Electric vs Non-Electric ALL-Electric Home (Elec. space + Elec. water) & NON-Electric Home(gas-oil space + gas water) 13

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