BUILDING ENERGY SAVING ORDINANCE(BESO)

DECEMBER 7, 2016

Findings through Nov. 2016

BESO Basics

■ Update to RECO/CECO requiring tailored energy assessment at time of sale or

periodically, based on building size

■ The BESO process should be:

– EASY

– AFFORDABLE

– VALUABLE

■ Home Energy Score required for homes at time of sale or within 12 months.

■ Exemptions for high performing buildings

2

Berkeley Building Stock

■ Approx. 30,000 buildings total

■ 21,000 single-family

– 49% of square footage

■ 4,400 multifamily

– 22% of square footage

■ 2,800 commercial & mixed-use

– 29% of square footage 74%

16%

10%

49%

22%

29%

Single Family Multifamily Commercial

Square Footage

Count

3

BESO Compliance – Year 1

■ 921 single-family

– 4% of total stock

■ 108 small/medium

– 61 multifamily

■ 43 commercial

-1%

19%

39%

59%

79%

99%

2015 2017 2019 2021 2023 2025 2027 2029Year

Total Buildings under BESO Compliance

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BESO Basics

■ 712 buildings are fully

compliant

– 198 qualify as high

performance

■ 338 buildings have active

one-year deferrals

42%

19%

33%

6%

Breakdown of Compliance Types

Report Submitted High Performance Exemption

TOS Deferral Other Exemption

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Time of Sale Trends

0

20

40

60

80

100

120

140

160

180

200

Oct-15Nov-15

Dec-15Jan-16

Feb-16Mar-16

Apr-16May-16

Jun-16Jul-16

Aug-16Sep-16

Oct-16Nov-16

Monthly transactions by form type

Reports High Performance Exemption TOS Deferrals Construction Exemption

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Enforcement Process

■ 14% of buildings receive Courtesy Letter

■ 57% comply after Courtesy Letter; 99% after Notice of

Violation

■ 5 buildings pending citations

– Citation fee of $200, max of $1000

Courtesy Letter

Violation Warning

Notice of Violation

Citation Warning

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The Home Energy Score

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HEScore Basics

■ DoE program created to allow comparison of estimated energy use

between homes on a 1-10 scale

■ Each score corresponds to a range of energy uses, adjusted for

climate. Homes are compared to a national average, not a reference

home of similar size.

■ Easy to produce; takes less than an hour

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HEScore Cover

10

11

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Recommendations

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Home Energy Score Basics

■ 431 assessments

performed so far

■ Average score 5

■ 62% below 6;

contacted by Upgrade

Advisor

– 66 contacted

– 23 active or

complete

upgrades

18%

7%

13%12% 12%

11%

9%

7%

5% 5%

.

10.

20.

30.

40.

50.

60.

70.

80.

1 2 3 4 5 6 7 8 9 10

Co

un

t

Score

Distribution of Home Energy Scores

High

Performing

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HEScore Map

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How Building Age & Size Affect Score

■ Building age has little to no bearing on a home’s score

■ Large homes score lower than small homes

– Especially influenced by window area

■ Small homes score across the 10-point scale

1880.

1900.

1920.

1940.

1960.

1980.

2000.

2020.

. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10.

Initial Score vs Year Built

.

1000.

2000.

3000.

4000.

5000.

6000.

7000.

8000.

. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10.

Flo

or

Are

a

Score

Initial Score vs Floor Area

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Berkeley Homes – Building Envelope

■ Majority are poorly insulated

– 33% have no attic insulation

– 83% have no floor insulation

– 50% have no wall insulation

■ Very few have insulation up to code

– 8% have attic insulation to code

– 0% have floor or wall insulation to code

■ 63% have single paned windows.

17

Berkeley Homes – HVAC

■ Most houses are heated by natural gas

■ Heating Efficiency: Annual Fuel Utilization Efficiency

– Code is 78% AFUE, best available 96% AFUE

– Average: 76% AFUE

– 12% of houses are at or above 90% AFUE

– 64% are below code

■ 25% have natural gas wall furnaces

■ 5% have AC

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Feedback

0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%

Overall satisfaction

Ease of assessment

Quality of service of City of Berkeley staff

Quality of service of Energy Assessor

Energy efficiency information provided

Please rate your experience based on the following:

Very satisfied – Satisfied – Neutral – Dissatisfied – Very dissatisfied –19

Feedback

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Feedback

■ 62% find HES easy to

understand

■ 35% find it motivational

– Priority area: how to

motivate residents?

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Plans Moving Forward

■ Reconvene the BESO Technical Advisory Committee

■ HEScore Wish List:

– Include “upgrade” score

– Account for PV in Score, coming 2017

■ Increase conversions from HEScore to Energy Upgrade

■ Measure conversions

– Monthly Energy Upgrade California participation

– PACE – Property Assessed Clean Energy loans

– Building Permits

– Community-wide consumption data

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Questions?

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