Housing Stock

Areas of opportunity

Estimated Savings

Estimated Cost per Household

Housing Stock Energy Savings Opportunities

Education

5% to 20%

?

Low Cost Improvemen

ts

7% to 20%

$300 to $900

Retrofitting

10% to 25%

$13,600 to $23,050

Alternative(Solar?)

10% to 95%

$5,000 to $45,000

Housing StockInvest in Conservation First

Actions1. Educate2. Address Low Cost Improvements3. Address Envelope & Energy Efficient

Components (retrofit)4. Alternatives (solar?) implementation (Solar, for example, will cost less if a smaller system is required

as a result of actions 1, 2 and 3)

Education: Est. Savings 5% to 20% Est. Cost: TBD

• Affordable• Community Involvement• Limitless• Bold• Access to Schools• Everyone can suggest new ideas• Everyday savings

Low Cost Improvements: Est. Savings 7% to 20% - Est. Cost $300 to $900 per household

• Facts: 90% homes built before 2000 Newer homes are also part of the equation 51% owner occupied 49% household income less than $35,000

• Affordable• Everyday Savings• Weapons

Minimum energy standards prior to RE listing Rebates & Incentives Low income program

Average Home?

• 1700 SF• 3 Bed• 2 Bath• Year built?

Cost of Low Cost Improvements• 2 Low Flow showerheads• 3 sink aerators• 40 cfls• Water heater timer (if electric wh)• Water heater blanket• 2 door weather-strip• Attic hatch insulation• Caulk windows• Outlet and switch gaskets• Programmable thermostat

Cost: $300 to $900Estimated Savings: 7% to 17%

Jun Jul Aug Sep Oct Nov Dec15

20

25

30

35

40

45

50

55

6058.26

57.0759.32

47.7

38.28

34.9736.58

43.69

53.55 52.94

35.79

24.72

18.24

22.71

Electricity Daily consumption 2006 vs. 20073515 NW 108th Blvd

2006 E2007 E

KWH

/per

day

Jun Jul Aug Sep Oct Nov Dec0%

5%

10%

15%

20%

25%

30%

35%

40%

45%

50%

25%

6%

11%

25%

35%

48%

38%

Electricity Savings in 20073515 NW 108th Blvd

Average Savings24.25%

Retrofitting: Est. Savings 10% to 25% Est. Cost $13,600 to $23,050 per household

• Facts: 89% homes built before 2000 62.4% single units (53.2% Single family, 9.2% Mobile Homes)

63% household income less than $50,000 49% renter occupied

• High Cost• Landlords do not invest because there is not benefit for them• Not affordable for a high percent of homeowners• Long payback• Mainly seasonal savings• People address if a damage occurs and generally choose by cost

• Weapons Rebates & Incentives Low income program Regulation (for landlords) Loans for Retrofitting

Costs for retrofit average home

• HVAC Seer 16 or better: $5,000 - $9,000• Double pane windows: $4,000 - $7,000• Water Heater: $600 - $850• Attic Insulation to R-30: $600 - $1,000• Radiant barrier: $1,200 - $1,800• ES Refrigerator: $600 - $1,200• ES Washer: $600 - $800• ES Dryer: $600 - $800• ES Dishwasher: $400 - $600• Duct Sealing: $300 - $1,000

Estimated Total Cost: $13,600 - $23,050Estimated Savings: 10% to 25%?

Alternative (Solar?): Est. Savings 10% to 95% Est. Cost $5,000 to $45,000 per home

• Facts: 89% homes built before 2000 62.4% single units (53.2% Single family, 9.2% Mobile Homes)

63% household income less than $50,000 49% renter occupied

• High Cost• Landlords refuse to invest because there is not benefit for them• Not affordable for a high percentage of homeowners• Long payback• System will cost less if Conservation and efficiency were addressed before

• Weapons– Rebates & Incentives– Regulation– Financing

Recommended ActionsResidential Sub-Committee

1. Gather Information: Consumption, demographics, social, economic, housing, costs, etc.

2. Determine Indexes (Actual ) KWH/sf/day – KWH/pc/day3. Analyze information4. Identify opportunities5. Design Action Plan6. Select Weapons7. Set reduction Goals8. Execute plan9. Follow-up

Follow up

• KWH/SF/day: Today (Goal: in one year/two/five/ten)

• KWH/per capita/day (Goal: in one year/two/five/ten)

• Agreement with google, zillow-like platforms to make this info available to the public

Other Data

1. Information Gathering

A. Megawatts Total Residential Consumption yearB. KWH/SF/Day (For every month)C. KWH/pc/Day (For every month)D. Total residential sqft (heated area)E. Demographics (age, households by type)F. Social (disability, educational, language)G. Economic (income, occupation, education)H. Housing (occupancy, units in structure, year structure built,

housing tenure)I. Average home characteristicsJ. Estimated costs (retrofitting, Low Cost Improvements,

Certification/inspection)

GRU’s - Gainesville Residential Average Consumption

798 KWh per 1,000 sq. feet per month=

0.798 KWh per sq. feet per month=

0.0266 KWh per sq. feet per day

It is important to have this index for every single month.

Source GRU Customer Bulletin – August 2007

(2005 census data)Alachua County Population= 210,323

Age: Less than 10 24,375 11.6%10 to 19 26,095 12.4%20 to 34 66,495 31.6%35 to 54 51,712 24.6%55 and older 41,646 19.8%

(2005 census data)Housing Stock Total UNITS= 104,613

Year Structure:Built Before 2000: 92,884 89%

Type of structure:Single 55,622 53.2%Mobile Home 9,672 9.2%Two units 3,483 3.3%Three to nine units 18,286 17.5%10 or more 17,550 16.8%

Occupied units: 94,960 90.77%

(2005 census data)Housing Stock: Occupied UNITS= 94,960

Housing Tenure:Renters 46,913 49%Owners 48,047 51%

Occupancy: family owners 32,672 34.4%non family owners 15,375 16.1%family renters 15,528 16.4%non family renters 31,385 33.1%

(2005 census data)Housing Stock: Households= 94,960

Income:Less than $35,000 46,934 49%$35,000 to $49,999 13,298 14%$50,000 to $74,999 14,739 16%$75,000 and Up 19,989 21%

Type of Households: Family with own children under 18 21,092 22.2%Married couple with NO children under18 20,557 21.6%Non Family living alone under 65 24,129 25.4%Non Family living alone 65 and over 6,492 6.9%Other 22,690 23.9%