11

- i 

### CHAPTER 11 . CONSUMER SUBGROUP ANALYSIS

TABLE OF CONTENTS

11.1 INTRODUCTION

................................ ................................ ................................ ......... 11

- 1

11.2 SUBGROUPS DEFINITION

................................ ................................ ........................ 11

- 1

11.2.1 Senior

- Only Households

................................ ................................ ................................ 11

- 1

11.2.2 Low

- Income Households

................................ ................................ ............................... 11

- 1

11.3 INPUTS TO THE LIFE

- CYCLE COST AND PAYBA CK PERIOD SUBGROUP

ANALYSIS

................................ ................................ ................................ .................... 11

- 2

11.4 RESULTS

................................ ................................ ................................ ...................... 11

- 3

11.4.1 Senior

- Only

................................ ................................ ................................ .................... 11

- 3

11.4.2 Low

- Income

................................ ................................ ................................ ................... 11

- 4

LIST OF TABLES

Table 11.2.1 RECS 2005 Definitions of Low

- Income Households by Yearly Income

.......... 11

- 2
Table 11.3.1 Household Population

................................ ................................ ........................ 11

- 2
Table 11.3.2 Weighted

- Average Annual Energy Use for Microwaves and Countertop
Combination Ovens

................................ ................................ ........................... 11

- 3
Table 11.3.3 Weighted

- Average Annual Energy Use for Over the Range Combination

Ovens

................................ ................................ ................................ ................. 11

- 3
Table 11.4.1 Microwave and Countertop Combination Ovens: LCC and PBP Results
for Senior

- Only Households

................................ ................................ .............. 11

- 3
Table 11.4.2 Over the Range Combination Ovens: LCC and PBP Results for Senior

Only Households

................................ ................................ ................................ 11

- 4
Table 11.4.3 Microwave and Countertop Combination Ovens:: LCC and PBP Results
for Low

- Income Households

................................ ................................ ............. 11

- 4
Table 11.4.4 Over the Range Combination Ovens: LCC and PBP Results for Low

Income Households

................................ ................................ ............................ 11

- 411

- 1 

### CHAPTER 11. CONSUMER SUBGROUP ANALYSIS

11.1 INTRODUCTION

Chapter 8 describes the life

- cycle c ost (LCC) and payback p eriod (PBP) analyses that

examine impacts of energy conservation standards on the U.S. population. In analyzing the potential impact of new or amended standards on residential consumers, DOE further evaluates the impact on identifiable groups of consumers (i.e., subgroups) that may be disproportionately aff ected by a

national standard level. The consumer subgroup analysis evaluates impacts by analyzing the LCC and PBPs for subgroups of residential consumers.

For microwave oven 

### standby mode and off mode , DOE identified two consumer subgroups that warranted further study: (a) households composed of people 65 years of age or older (senior

only) ; and (b) households at or below the poverty line (low

- income)

.



### DOE determined the impact on consumer subgroups for microwave and comb ination

ovens using the LCC Spreadsheet Model, which allows for the examination of particular consumer subgroups. Chapter 8 explains in detail the inputs to the model u sed in determining
LCC and PBPs

.

This chapter describes the subgroup identification in further detail and gives the results of the LCC and PBP analyses for the considered subgroup s

.



### 11.2 SUB G ROUPS DEFINITION

11.2.1 Senior

- Only Households

Senior

- only households have occupants who are all at least 65 years of age. Based on the

DOE Energy Information Administration (EIA)’s Residential Energy Consumption Survey of 200 5 (RECS), senior

- only households comprise 17 percent of the country’s households

. 1



### 11.2.2 Low

- Income Households

As defined in the RECS survey, low

- income households are considered to be those at or below the “poverty line.” The “poverty line” varies with household size, head of household age, and family income. Table 11.2.1 summarizes the income level baselines for selecting low

income households from the RECS sample. The RECS survey classifies 15 percent of the country’s households as low

- income.11

- 2 

### Table 11.2.1 RECS 200 5 Definitions of Low

- Income Households by Yearly Income Average Income in $

Household Size 48 Contiguous Stat es and D.C. Alaska Hawaii

1 9

, 570 11

, 950 11

, 010



### 2 12

, 830 16

, 030 14

, 760


### 3 16

, 090 20

, 100 18

, 510



### 4 19

, 350 24

, 190 22

, 260



### 5 22

, 610 28

, 270 26

, 010


### 6 25

, 870 32

, 350 29

, 760



### 7 29

, 130 36

, 430 33

, 510


### 8 32

, 390 40

, 510 37

, 260


### 9 35

, 650 44

, 590 41

, 010


### 10 38

, 910 48

, 670 44

, 760



### 11 42

, 170 52

, 750 48

, 510



### 12 45

, 430 56

, 830 52

, 260


### 13 48

, 690 60

, 910 56

, 010



### 14 51

, 950 64

, 990 59

, 760


### 15 55

, 210 69

, 070 63

, 510



### 11.3 INPUTS TO THE LIFE

- CYCLE COST AND PAYBA CK PERIOD

SUB G ROUP ANALYSIS

Table 11.3.1 summarize s the household population for microwave and combination ovens

, while T ables 11.3. 2 and 11.3. 3 summarize the weighted

- average annual energy use for the households analyzed in the cons umer subgroup analyses

. 

### These values are compared against the weighted

- average values for the national sample

.



### Table 11.3.1 Household Population

All Models

Count Weight

National 3835 97,672,832

Senior

- Only 596 16,420,843
Senior

- Only % 15.5% 16.8%

Low

- Income 633 13,556,627

Low

- Income % 16.5% 13.911

- 3 

### Table 11.3.2 Weighted

- Average Annual Energy Use for Microwaves and Countertop

Combination Ovens (kWh)

All

Households Senior

- Only Low

Income
Baseline 34.75 34.69 34.74

CSL 1 17.38 17.35 17.37

CSL 2 13.03 13.01 13.03

CSL 3 8.69 8.67 8.68

CSL 4 0.17 0.17 0.17

Table 11.3.3 Weighted

- Average Annual Energy Use for Over the Range Combination

Ovens (kWh)

All

Households Senior

- Only Low

Income
Baseline 39.10 39.03 39.08

CSL 1 32.15 32.09 32.13

CSL 2 23.46 23.42 23.45

CSL 3 19.11 19.08 19.11

CSL 4 0.35 0.35 0.35

11.4 RESULTS

Tables 11.4.1 through 11.4. 4 below summarize the LCC results for microwave and
combination ovens . The LCC results provide the average installed price ; average lifetime operating

cost (discounted) ; average life

- cycle cost ; average life

- cycle cost savings ; the percentage of consumers that are burdened with net costs, realize net savings, or are no t impact ed ; and the median payback period.



### 11.4.1 Senior

- Only

Table 11.4.1 Microwave and Countertop Combination Ovens : LCC and PBP Results

for Senior

- Only Households

Standby (W) Life

- Cycle Cost ( 2010 $) Life

- Cycle Cost Savings Payback
Period

Average

Installed

Price Average Operating

Cost Average

LCC Average Savings ( 2010 $) Households with Median (years) Net
Cost No Impact* Net
Benefit

4.00 $223 $31 $254 NA 0% 100% 0% NA

2.00 $224 $15 $239 $7 0% 54% 46% 0.2

1.50 $224 $12 $236 $10 0% 19% 81% 0.4

1.00 $225 $8 $233 $12 0% 0% 100% 1.0

0.02 $230 $0 $230 $15 0% 0% 100% 2.4 * “No impact” means that the base case product assigned to the household has greater efficiency than the level indicated, so the household is not affected.11

- 4 

### Table 11.4.2 Over the Range Combination Ovens : LCC and PBP Results for Senior

Only Households

Standby (W) Life

- Cycle Cost ( 2010 $) Life

- Cycle Cost Savings Payback

Period

Average

Installed

Price Average Operating

Cost Average

LCC Average Savings ( 2010 $) Households with Median (years) Net

Cost No Impact* Net

Benefit

4.50 $482 $35 $517 NA 0% 100% 0% NA

3.70 $482 $28 $511 $6 0% 0% 100% 0.0

2.70 $486 $21 $506 $10 0% 0% 100% 2.0

2.20 $496 $17 $513 $4 25% 0% 75% 6.4

0.04 $490 $0 $490 $27 0% 0% 100% 1.8 * “No impact” means that the base case product assigned to the household has greater efficiency than the level indicated, so the household is not affected.



### 11.4.2 Low

- Income

Table 11.4.3 Microwave and Countertop Combination Ovens : : LCC and PBP Results

for Low

- Income Households

Standby (W) Life

- Cycle Cost ( 2010 $) Life

- Cycle Cost Savings Payback

Period

Average

Installed

Price Average Operating

Cost Average

LCC Average Savings ( 2010 $) Households with Median (years) Net

Cost No Impact* Net

Benefit

4.00 $223 $31 $254 NA 0% 100% 0% NA

2.00 $223 $15 $239 $7 0% 54% 46% 0.2

1.50 $224 $12 $236 $10 0% 19% 81% 0.4

1.00 $225 $8 $233 $12 0% 0% 100% 1.0

0.02 $230 $0 $230 $15 0% 0% 100% 2.4 * “No impact” means that the base case product assigned to the household has greater efficiency than the level indicated, so the household is not affected.



### Table 11.4.4 Over the Range Combination Ovens : LCC and PBP Results for Low

Income Households

Standby (W) Life

- Cycle Cost ( 2010 $) Life

- Cycle Cost Savings Payback
Period

Average

Installed

Price Average Operating

Cost Average

LCC Average Savings ( 2010 $) Households with Median (years) Net

Cost No Impact* Net

Benefit

4.50 $482 $35 $516 NA 0% 100% 0% NA

3.70 $482 $28 $510 $6 0% 0% 100% 0.0

2.70 $485 $21 $506 $10 0% 0% 100% 2.0

2.20 $496 $17 $513 $4 25% 0% 75% 6.4

0.04 $489 $0 $490 $27 0% 0% 100% 1.8 * “No impact” means that the base case product assigned to the household has greater efficiency than the level indicated, so the household is not affected.11

- 5 

### R EFERENCES

1. U.S. Department of Energy

- Energy Information Administration, Residential Energy Consumption Survey: 2005 Public Use Data Files, 2005.

< http://www.eia.doe.gov/emeu/recs/recspubuse05/pubuse05.html >