best practices for realizing the energy savings potential ...savings potential of multifamily...
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Best Practices for Realizing the Energy
Savings Potential of Multifamily
Buildings
Kate Johnson, Senior Policy Analyst
Presented at the 2013 ACEEE National
Conference on Energy Efficiency as a Resource
September 24, 2013
Multifamily Energy
Savings Project • Three-year project to improve the energy
efficiency of multifamily housing nationwide
• GOAL: Expand the number of utilities offering
multifamily energy efficiency programs and
increase spending and savings for these
programs by at least 25% by the end of
2015
• Focus on building partnerships between the
housing community, utilities, and state and
local governments
www.aceee.org/multifamily-project
Presentation Overview
1. Opportunity for energy
savings
2. Current landscape of
multifamily programs
3. Best practices for
overcoming barriers
4. Results from leading
programs
The Multifamily Efficiency Opportunity
The Multifamily Efficiency Opportunity
The share of households living in multifamily buildings is rising.
Source: U.S. Energy Information Administration, Residential Energy
Consumption Survey; www.eia.gov/consumption/residential
The Multifamily Efficiency Opportunity
Source: www.aceee.org/multifamily-project
Annual Potential Savings from Multifamily Buildings by State
At 15% electricity and 30% natural gas efficiency improvement
Current Landscape of Multifamily Programs
40% of the 50
metropolitan areas
analyzed are not served
by multifamily energy
efficiency programs
Source: ACEEE, Scaling Up Multifamily Energy Efficiency Programs: A
Metropolitan Area Assessment (2013).
Major Metropolitan Areas With One or More Multifamily Energy
Efficiency Programs (2012)
2011 Multifamily Program Spending
$0.78 $0.65
$1.12
$0.70 $0.69
$0.30
$1.81
$0.15
$4.08
$0.75
$0.08
$0.69
$8.74
$0.84
$0.44
$1.16
$0.20
$1.91
$1.25
$0.00
$1.00
$2.00
$3.00
$4.00
$5.00
$6.00
$7.00
$8.00
$9.00
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
$ p
er
Resid
ne
tia
l C
us
tom
er
Targeted Multifamily Spending per Residential Customer ($)
Source: ACEEE, Scaling Up Multifamily Energy Efficiency Programs: A Metropolitan Area Assessment (2013).
Median: $0.75 per Residential Customer
2011 Multifamily Program Share of Residential Spending
5%
3%
11% 11%
9%
2%
18%
5%
17%
11%
3%
9%
26%
3% 2%
19%
1%
12% 12%
$0.00
$1.00
$2.00
$3.00
$4.00
$5.00
$6.00
$7.00
$8.00
$9.00
0%
5%
10%
15%
20%
25%
30%
35%
40%
$ p
er
Resid
ne
tia
l C
us
tom
er
Mu
ltif
amily
Sh
are
Targeted Multifamily Spending per Residential Customer ($)
Targeted Multifamily Share of Residential Spending (%)
Source: ACEEE, Scaling Up Multifamily Energy Efficiency Programs: A Metropolitan Area Assessment (2013).
2011 Multifamily Program Spending and Multifamily Share of
Housing Units by Metropolitan Area
37% 36%
32%
28% 28% 27%
26% 26% 26% 25% 25% 25%
23%
20% 19%
17% 16%
15%
12%
$0.00
$1.00
$2.00
$3.00
$4.00
$5.00
$6.00
$7.00
$8.00
$9.00
0%
5%
10%
15%
20%
25%
30%
35%
40%
$ p
er
Resid
ne
tia
l C
us
tom
er
Mu
ltif
amily
Sh
are
Targeted Multifamily Spending per Residential Customer ($)
Multifamily Share of Housing Units (%)
Targeted Multifamily Share of Residential Spending (%)
Source: ACEEE, Scaling Up Multifamily Energy Efficiency Programs: A Metropolitan Area Assessment (2013).
Current Landscape of Multifamily Programs
In the 50 metropolitan areas with the greatest number multifamily units, ACEEE identified 50 targeted multifamily programs.
16 direct installation of no-cost measures
38 prescriptive and custom rebates for individual measures
20 comprehensive whole-building new construction & retrofit programs
28 integrate both electric & gas saving measures
Full report: http://www.aceee.org/research-report/e135
Multifamily Program Challenges
Best Practices for Overcoming Multifamily
Program Challenges
Capital Constraints
Offer On-Bill Repayment or
Low-Cost Financing
Serve both Low-Income and Market-
Rate Multifamily Households
Align Utility and Housing Finance
Programs
Provide Multiple Pathways for Participation
Best Practices for Overcoming Multifamily
Program Challenges
Split Incentives
Integrate Direct Install and Rebate
Programs
Provide Performance Incentives for
Achieving Greater Savings Levels
Incentivize in-unit measures and target
equipment replacement
Limited Capacity
and Technical Expertise
Provide a
“One-Stop-Shop”
Coordinate Electric and Gas Programs
Streamline Rebate Applications
Partner with the Local Multifamily Housing Industry
Best Practices for Overcoming Multifamily
Program Challenges
Results From Leading Programs First-Year Annual Electric Savings per Unit
All results are preliminary. Do not cite.
433
650
2,222
731
1,098 1,179
786 810
1,667
0
500
1,000
1,500
2,000
2,500
AustinEnergy
CNTEnergy
DC SEU EnergyTrust ofOregon
LEAN NYSERDA PSE PSE&G SMUD
Ele
ctr
ic S
avin
gs p
er
Un
it (
kW
h)
Median: 810 kWh/unit
Results From Leading Programs First-Year Annual Gas Savings per Unit
All results are preliminary. Do not cite.
240
33
4
139
107
2
153
0
50
100
150
200
250
CNT Energy DC SEU Energy Trustof Oregon
LEAN NYSERDA PSE PSE&G
Gas
Sav
ings
per
Un
it (
ther
ms)
Median: 107 therms/unit
Results From Leading Programs
Average participant
savings in whole-
building programs:
19-29%
Average Measure Life:
6-22 years
All results are preliminary. Do not cite.
Results From Leading Programs
Cost-Effectiveness
Benefit-Cost Ratios (Range)
Total Resource Cost: 1.3 - 2.9
Utility Cost Test: 1.3 - 2.96
Societal Cost Test: 1.88 - 4.7
All results are preliminary. Do not cite.
