**Frames Evaluation of Coal, Nuclear, Electric and Alternative Fuels
(CNEAF) Surveys with the Manufacturing Sector of the 2002 Economic
Census and the 2002 Manufacturing Energy Consumption Survey**

**October 2005**

Vicki Haitot and Richard Hough

U.S. Census Bureau

and

Shawna Waugh

Energy Information Administration

**Purpose of Frames Evaluation:**

The Energy Information Administration (EIA) contracted with the U.S.
Census Bureau to conduct five frame evaluations for Coal, Nuclear,
Electric and Alternative Fuels (CNEAF) surveys. Each of these survey
frames contained manufacturing establishments in the 2002 Economic
Census. The agreement was in support of EIA's Strategic Plan 2004-2008.
This analysis was intended to evaluate whether or not EIA has sufficient
coverage of production of solar thermal collectors and photovoltaic
cells and modules, coal consumption, coke and breeze production, fuel
consumption and/or electricity generation in the Manufacturing Sector,
NAICS 31-33.

To date, the Census Bureau has completed all five of the evaluations for
the following surveys:

-   EIA-3, "Quarterly Coal Consumption and Quality Report, Manufacturing
    Plants"

> (See Attachment II for results)

-   EIA-860, "Annual Electric Generator Report" for Combined Heat and
    Power Plants"

> (See Attachment III for results)

-   EIA-5, "Quarterly Coal Consumption and Quality Report, Coke Plants"

> (See Attachment IV for results)

-   EIA-63a, "Annual Solar Thermal Collector Manufacturing Survey"

> (See Attachment V for results)

-   EIA-63b, "Annual Photovoltaic Module and Cell Manufacturing Survey"

> (See Attachment VI for results)

EIA took the opportunity to share data with the Census Bureau to conduct
this statistical analysis because the results of the 2002 Economic
Census and the 2002 Manufacturing Energy Consumption Survey (MECS) were
available to the Census Bureau at this time. The MECS is a sample of
manufacturing establishments within the U.S. This survey was used for
the evaluation of the EIA-3 and the EIA-860. The product detail
collected on the Economic Census defines the Census frames for the
EIA-5, EIA-63a and the EIA-63b evaluations. Coverage was measured using
establishment counts, and volume of consumption from specific products
collected on the 2002 Economic Census and consumption variables
collected on the 2002 MECS. (See Attachment I for summary of EIA and
Census Bureau frame.)

Title 13, US Code, protects individual establishment data for the
Economic Census and the MECS. Therefore, the results of these
assessments are subject to the Census Bureau's disclosure policy. The
Census Bureau has agreed to analyze and provide as much detail as
allowed by law.

**Matching and Analysis:**

The first step in comparing the frames was to identify the
establishments on EIA's frames. The next step was to determine where
those establishments were classified in the Census Bureau's Business
Register. The Business Register is the universe of establishments for
the Economic Census. The MECS draws its sample from the manufacturing
portion of the Economic Census. Business Register classifications of
establishments are based on primary activity performed at the
establishment. This implies that an establishment may have some
manufacturing capabilities but if the primary activity is not
manufacturing then the manufacturing information would be reported as a
secondary activity and thus we would have no detailed information as to
the manufacturing portion of the establishments' total receipts. Only
establishments classified as manufacturing in the Census Bureau's
Business Register are included in the evaluations.

For the 2002 Economic Census, the Business Register contained
approximately 350,000 active manufacturing establishments. For
conducting the manufacturing portion of the 2002 Economic Census, the
Business Register partitions these establishments into "non-mail" and
"mail" groups for processing purposes. Establishments that have fewer
than 5 employees are grouped as "non-mail"; the Census Bureau uses
administrative information obtained from other Federal Agencies to
impute data for these establishments. They accounted for approximately
3% of the total receipts published for the manufacturing sector of the
2002 Economic Census. The MECS sample does not include the "non-mail"
group of establishments.

The second step in the matching process was to compare those
establishments, on EIA's frames, classified as manufacturing in the
Census Bureau's Business Register to establishments that reported to the
2002 Economic Census or the 2002 MECS. The frame for comparison from the
2002 Economic Census was comprised of establishments that reported
production of the product that the EIA frame was measuring. The frame
for comparison from the 2002 MECS was comprised of establishments that
reported consumption of coal for the EIA-3 and those that reported
generation of electricity for the EIA-860. All establishments that were
considered non-matches to the Census Bureau frames were researched for
accuracy and appropriate corrections were made, if necessary.

# 

*Coverage by Counts:* The coverage by number of establishments was
measured as the percent of the total number of matched establishments on
EIA's frames with the total number of in-scope manufacturing
establishments on the frame for the 2002 Economic Census and the 2002
MECS.

*Coverage by Volume:* The coverage by volume was measured as the percent
of the total product value for matched establishments with the total
number of in-scope manufacturing establishments on the frame for the
2002 Economic Census and the 2002 MECS.

Attachment I:

### 

### Summary of EIA and Census Bureau Frames

+---------+-----------------+--------------------+-------------------+
| **S     | **Name and      | **Population**     | **Frame size**    |
| urvey** | frequency of    |                    |                   |
|         | survey**        |                    |                   |
+---------+-----------------+--------------------+-------------------+
| EC      | *Economic       | The 2002 Economic  | There are         |
|         | Census*         | Census covers      | approximately 7   |
|         |                 | nearly all of the  | million           |
|         | Conducted every | U.S. Economy in    | establishments    |
|         | 5 years         | its basic          | contained in the  |
|         |                 | collection of      | Census Bureau's   |
|         |                 | establishment      | Business          |
|         |                 | statistics.        | Register,         |
|         |                 | Censuses of        | approximately     |
|         |                 | agriculture and    | 350,000           |
|         |                 | governments are    | establishments    |
|         |                 | conducted at the   | are classified as |
|         |                 | same time.         | manufacturing.    |
+---------+-----------------+--------------------+-------------------+
| MECS    | *Manufacturing  | Manufacturing      | Sample Frame of   |
|         | Energy          | sector of the 2002 | 15,500 drawn from |
|         | Consumption     | Economic Census    | the 200,000       |
|         | Survey*         |                    | mailed            |
|         |                 |                    | establishments in |
|         | Conducted every |                    | manufacturing     |
|         | 4 years         |                    | sector of         |
|         |                 |                    | Economic Census.  |
+---------+-----------------+--------------------+-------------------+
| CIR     | *Current        | This survey covers | Approximately     |
|         | Industrial      | the manufacture of | 3,000             |
|         | Report*         | semi-conductors,   | manufacturing     |
|         | (MA334Q)        | printed circuit    | establishments    |
|         | *Annual Survey  | boards,            | report to the     |
|         | of              | connectors,        | MA334Q. (This     |
|         | Semiconductors  | capacitors and     | includes          |
|         | and Electric    | other              | establishments    |
|         | Components      |                    | that produce      |
|         | Manufacturers*  |                    | photovoltaic      |
|         |                 |                    | cells and         |
|         |                 |                    | modules.)         |
+---------+-----------------+--------------------+-------------------+
| EIA-3   | *Quarterly Coal | Census of          | 507 reporting     |
|         | Consumption and | manufacturers      | units that        |
|         | Quality Report, | which consume coal | include single    |
|         | Manufacturing   |                    | establishments    |
|         | Plants*         |                    | and companies.    |
+---------+-----------------+--------------------+-------------------+
| EIA-860 | *Annual         | Combined Heat and  | 645 CHPs          |
|         | Electric        | Power Plants in    |                   |
|         | Generator       | manufacturing      |                   |
|         | Report*         | sector, NAICS 31   |                   |
|         |                 | to 33              |                   |
+---------+-----------------+--------------------+-------------------+
| EIA-63a | *Annual Solar   | Census of          | 20 reporting      |
|         | Thermal         | manufacturers,     | units that        |
|         | Collector       | wholesale,         | include single    |
|         | Manufacturers   | import/export of   | establishments    |
|         | Survey*         | solar thermal      | and companies.    |
|         |                 | collectors         |                   |
+---------+-----------------+--------------------+-------------------+
| EIA-63b | *Annual         | Census of          | 19 reporting      |
|         | Photovoltaic    | manufacturers,     | units that        |
|         | Module and Cell | wholesale,         | include single    |
|         | Manufacturers   | import/export of   | establishments    |
|         | Survey*         | photovoltaic       | and companies.    |
|         |                 | modules and cells  |                   |
+---------+-----------------+--------------------+-------------------+
| EIA-5   | *Quarterly Coal | Census of active   | 19 reporting      |
|         | Consumption and | coke plants        | units that        |
|         | Quality Report, |                    | include single    |
|         | Coke Plants*    |                    | establishments    |
|         |                 |                    | and companies.    |
+---------+-----------------+--------------------+-------------------+

> **Attachment II: Report on Frames Coverage for EIA-3**

The EIA-3 is a quarterly survey that publishes data on coal consumption
within the manufacturing sector of the U.S. There are 507 establishments
in 45 states on the EIA-3 frame.

**Methodology**

**Matching**:

During the first phase of the matching, we determined that 470 of the
507 EIA-3 establishments were classified in manufacturing. The Business
Register had 23 establishments classified in the mining sector, four
establishments classified in utility, three establishments classified in
government, four were classified in some other sector other than those
listed above, and three establishments did not match to any Business
Register establishment. These 37 establishments accounted for 14% of the
total consumption of coal reported to the EIA-3. They are not included
in the tables below.

The Manufacturing Energy Consumption Survey (MECS) collects data
regarding consumption of coal for both fuel or non-fuel purposes. The
establishments that reported consuming coal as either a fuel or non-fuel
made up the frame used to compare establishments on the EIA-3 frame. The
MECS survey, which is a sample, had 97 more establishments reporting
coal consumption than the EIA-3 and was 27% of the total consumption of
coal in short tons reported to the MECS. There were 28 establishments on
the MECS consuming less than 1000 short tons, which were removed from
this evaluation because the EIA frame has a threshold of 1000 short tons
for establishments to be in the survey.

**Coverage:**

Coverage by Counts: For the EIA-3, the following equation applies to
percentage of coverage by count:

*0.79 =* [Number of Matched Establishments on MECS that consume
Coal]{.underline}

Number of Active Establishments In-scope on MECS that consume Coal

**Table I: Regional Counts**

  --------------- --------------- --------- ----------- --------- --------- ------------
  **Region**      **EIA-3         **MECS    **MECS and  **On MECS **On      **Coverage
                  Manufacturing   Sampled   EIA-3**     and Not   EIA-3 and by Count**
                  Plants**        Cases**               on        Not on    
                                                        EIA-3**   MECS**    

  Region 1 --     48              46        36          10        12        **78%**
  Northeast                                                                 

  Region 2 -      180             173       143         30        37        **83%**
  Midwest                                                                   

  Region 3 -      204             188       145         42        60        **77%**
  South                                                                     

  Region 4 - West 38              45        31          14        7         **69%**

  **Total**       **470**         **452**   **355**     **97**    **116**   **79%**
  --------------- --------------- --------- ----------- --------- --------- ------------

Table II: State Counts

  --------------- --------------- --------- ----------- ---------- --------- ------------
  **States**      **EIA-3         **MECS    **MECS and  **On MECS  **On      **Coverage
                  Manufacturing   Sampled   EIA-3**     and Not on EIA-3 and by Count**
                  Plants**        Cases**               EIA-3**    Not on    
                                                                   MECS**    

  Alabama         20              24        19          5          2         79%

  Arkansas        3               5         3           2          0         60%

  Arizona         4               3         3           0          1         100%

  California      10              10        9           1          1         90%

  Colorado        3               4         3           1          0         75%

  Delaware        1               2         1           1          0         50%

  Florida         7               7         5           2          2         71%

  Georgia         20              18        12          6          8         67%

  Hawaii          1               1         1           0          0         100%

  Iowa            15              11        10          1          5         91%

  Idaho           4               5         4           1          0         80%

  Illinois        19              18        14          4          5         78%

  Indiana         22              19        16          3          6         84%

  Kansas          4               4         4           0          0         100%

  Kentucky        15              16        8           8          7         50%

  Louisiana       1               2         1           1          0         50%

  Massachusetts   2               6         2           4          0         33%

  Maryland        5               5         5           0          0         100%

  Maine           2               2         2           0          0         100%

  Michigan        28              30        24          6          4         80%

  Minnesota       9               9         8           1          1         89%

  Missouri        10              13        10          3          0         77%

  Mississippi     2               1         1           0          1         100%

  Montana         2               3         1           2          1         33%

  North Carolina  30              20        17          3          13        85%

  North Dakota    3               4         3           1          0         75%

  Nebraska        4               4         4           0          0         100%

  New Jersey      1               1         1           0          0         100%

  New Mexico      1               0         0           0          1         \-\-\--

  Nevada          2               3         2           1          0         67%

  New York        8               7         4           3          4         57%

  Ohio            45              38        31          7          14        82%

  Oklahoma        4               5         4           1          0         80%

  Oregon          1               5         1           4          0         20%

  Pennsylvania    35              30        27          3          8         90%

  South Carolina  20              19        13          6          7         68%

  South Dakota    2               1         1           0          1         100%

  Tennessee       23              17        16          1          7         94%

  Texas           16              19        15          4          1         79%

  Utah            4               4         3           1          1         75%

  Virginia        26              20        18          2          8         90%

  Washington      2               3         1           2          1         33%

  Wisconsin       19              22        18          4          1         82%

  West Virginia   11              8         7           1          4         88%

  Wyoming         4               4         3           1          1         75%

  **Total**       **470**         **452**   **355**     **97**     **116**   **79%**
  --------------- --------------- --------- ----------- ---------- --------- ------------

## Table III: NAICS3 by State

  ---------------------------- -------- ----------- ----------- ------------ --------- ------------ ------------ -------------- --------- ------------ ------------- -----------
  **[NAICS]{.underline}\-\--   **311    **312       **313       **314        **322     **324        **325        **327          **331     **332        **335         **Total**
  [States]{.underline}**       Food**   Beverage &  Textile**   Textile      Paper**   Petroleum &  Chemical**   Non-metallic   Primary   Fabricated   Electrical    
                                        Tobacco**               Products**             Coal                      Mineral        Metal**   Metal**      Equipment,    
                                                                                       Products**                Products**                            Appliance,    
                                                                                                                                                       and           
                                                                                                                                                       Component**   

  Alabama                      1                                                                                 2              2                                    5

  Arkansas                                                                                                       1              1                                    2

  California                   1                                                                                                                                     1

  Colorado                                                                                                                      1                                    1

  Delaware                                                                                                                      1                                    1

  Florida                                                                    1                                   1                                                   2

  Georgia                                           1           3            2                                                                                       6

  Iowa                         1                                                                                                                                     1

  Idaho                                                                                                          1                                                   1

  Illinois                     1                                                                                 2              1                                    4

  Indiana                                                                                                        1              2                                    3

  Kentucky                              3                                                           2            1              1                      1             8

  Louisiana                                                                  1                                                                                       1

  Massachusetts                                                                        2                         2                                                   4

  Michigan                     1                                             3                      2                                                                6

  Minnesota                                                                                                                               1                          1

  Missouri                                                                                          1            2                                                   3

  Montana                                                                                                        2                                                   2

  North Carolina                        1                                    1                                                  1                                    3

  North Dakota                                                                                      1                                                                1

  Nevada                                                                                                         1                                                   1

  New York                                                                                                       1              2                                    3

  Ohio                         1        1                                                           3            1              1                                    7

  Oklahoma                                                                                                       1                                                   1

  Oregon                                                                                            1             1             2                                    4

  Pennsylvania                                                                         1                         1              1                                    3

  South Carolina                                    1                        1                      2            1              1                                    6

  Tennessee                                                                                                                                            1             1

  Texas                                                                                                          3              1                                    4

  Utah                                                                                                           1                                                   1

  Virginia                                                                                          1                           1                                    2

  Washington                                                                                                     2                                                   2

  Wisconsin                                                                  3                                   1                                                   4

  West Virginia                                                                                     1                                                                1

  Wyoming                                                                                           1                                                                1

  **Total**                    **6**    **5**       **2**       **3**        **12**    **3**        **15**       **29**         **19**    **1**        **2**         **97**
  ---------------------------- -------- ----------- ----------- ------------ --------- ------------ ------------ -------------- --------- ------------ ------------- -----------

Co*verage by Volume:*

*0.89 =* [Unweighted Quantity of Shipments of coal consumed Matched Mfg
Estabs on MECS]{.underline}

Unweighted Quantity of Shipments of coal consumed All In-Scope Active
Mfg Estabs on MECS

**Table IV: Regional Volumes** (Quantity of Short Tons)

+-----------------------------------------------------------------------+
|   --                                                                  |
| ------------ ---------------- ------------------------ -------------- |
|   *                                                                   |
| *Regional     **Matched Cases  **All In-Scope Coal      **Coverage by |
|                                                                       |
| Volumes**      on MECS**        Consumption Cases on     Percentage** |
|                                   MECS**                              |
|                                                                       |
|   (Short Tons)                                                        |
|                                                                       |
|   Region 1 -     3,190,022        3,675,150                87%        |
|   Northeast                                                           |
|                                                                       |
|   Region 2 -     17,979,414       20,481,094               88%        |
|   Midwest                                                             |
|                                                                       |
|   Region 3 -     25,302,991       27,644,908               92%        |
|   South                                                               |
|                                                                       |
|   Region 4 -     3,490,409        4,348,030                80%        |
|   West                                                                |
|                                                                       |
|   US Total       49,962,836       56,149,182               89%        |
|   --                                                                  |
| ------------ ---------------- ------------------------ -------------- |
+-----------------------------------------------------------------------+

**Table V: US Volumes by Consumption** (Quantity of Short Tons)

  ---------------------- ---------------- ----------------- --------------
  **Fuel Uses**          **Matched        **All Cases**     **Coverage by
                         Cases**                            Percentage**

  (Short tons)           ** **            ** **             ** **

  **US Total**           **34,943,775**   **40,868,511**    **86%**

                                                            

  **Non-Fuel Uses**      **Matched        **All Cases**     **Coverage by
                         Cases**                            Percentage**

  (Short tons)           ** **            ** **             ** **

  **US Total**           **15,019,061**   **15,280,671**    **98%**
  ---------------------- ---------------- ----------------- --------------

**What are potential reasons for differences between EIA and the 2002
MECS?**

-   The EIA frames include utilities, construction, and government. For
    the purpose of these evaluations, these establishments were excluded
    from the comparison.

-   The MECS frame included establishments consuming less than 1,000
    short tons of coal. For the purpose of this evaluation, these
    establishments were excluded from the comparison

-   Coke Plants were removed from MECS before matching, except for the
    five coke plants that reported on EIA-3 and EIA-5.

-   Changes in ownership, including joint ownership of a single coke
    plant.

**What are the characteristics of missing establishments?**

-   30% of missing establishments were classified in NAICS 327
    (Non-Metallic Mineral Products).

-   Possibly not sampled in the MECS survey for 2002.

> **Attachment III:** **Report on Frames Coverage for the EIA-860**

The EIA-860, "Annual Electric Generator Report" is an annual survey that
publishes data collected from electric power producers. The EIA-906,
"Power Plant Report" is a monthly survey that publishes data collected
from regulated and unregulated electric power plants in the U.S.

The following analysis will evaluate coverage of the combined heat and
power plants in the manufacturing sector, which is a subset of the
EIA-860 frame. There are over 5,700 establishments on the EIA-860 frame
of which 2,562 are non-regulated establishments on the EIA-906 frame in
2002. The non-regulated portion of the electric power industry consists
of Combined Heat and Power Plants (most, though not all of which are in
the manufacturing sector) and Independent Power Producers. The following
analysis will focus on the 645 combined heat and power plants (CHPs)
self-classified in the Manufacturing Sector, NAICS 31-33 in the U.S. For
the remainder of this paper, the combined heat and power plants will be
called the CHP frame.

**Methodology**

**Matching**:

During the first phase of the matching, we determined that 617 of the
645 establishments on the CHP frame were classified in manufacturing.
The Business Register had 8 establishments classified in the utility
sector, 3 establishments classified in government and 17 establishments
did not match to any Business Register establishment, often because it
appeared there could be several establishments which might match. The
618 manufacturing establishments are the only ones that were included in
the tables.

The Manufacturing Energy Consumption Survey (MECS) collects data
regarding generation of electricity onsite by either cogeneration or
some other process. The establishments that reported generating
electricity by either of these processes made up the frame used to
compare establishments on the CHP frame. The MECS survey is a sample of
establishments from the Economic Census.

The CHP frame includes plants whose nameplate capacity is 1 megawatt or
greater for the sum of the generators. In order to exclude establishment
whose nameplate capacity was less than 1 megawatt, we analyzed the
relationship between nameplate capacity and electricity generation for
those establishments on the EIA frame whose nameplate capacity was close
to 1 megawatt. From this analysis, we decided to exclude establishments
on the MECS whose electricity generation was less than 2,000
megawatthours.

**Coverage:**

Coverage by Counts: For the CHP, the following equation applies to
percentage of coverage by count:

*0.70 =* [Number of Matched Establishments on MECS that generated
Electricity]{.underline}

Number of Active Establishments Inscope on MECS that generated
Electricity

Table I: State Counts

  --------------- -------- --------- ------------- --------- ----------- ------------
  **States**      **On     **MECS    **EIA Frame** **On MECS **On EIA    **Coverage
                  MECS and Frame**                 and Not   and Not on  by Count**
                  EIA**                            on EIA**  MECS**      

  Alabama         13       16        16            3         3           81%

  Alaska          0        2         7             2         7           0%

  Arizona         2        2         3             0         1           100%

  Arkansas        5        9         8             4         3           56%

  California      32       55        48            23        16          58%

  Colorado        1        2         2             1         1           50%

  Connecticut     5        7         5             2         0           71%

  Delaware        2        3         3             1         1           67%

  Florida         19       26        30            7         11          73%

  Georgia         13       16        24            3         11          81%

  Hawaii          2        3         3             1         1           67%

  Idaho           4        5         6             1         2           80%

  Illinois        21       29        37            8         16          72%

  Indiana         10       12        18            2         8           83%

  Iowa            3        3         6             0         3           100%

  Kansas          2        3         6             1         4           67%

  Kentucky        2        7         2             5         0           29%

  Louisiana       33       43        41            10        8           77%

  Maine           11       15        17            4         6           73%

  Maryland        3        4         3             1         0           75%

  Massachusetts   12       15        20            3         8           80%

  Michigan        12       27        20            15        8           44%

  Minnesota       11       12        13            1         2           92%

  Mississippi     7        7         9             0         2           100%

  Missouri        2        4         3             2         1           50%

  Montana         1        1         2             0         1           100%

  Nebraska        2        2         2             0         0           100%

  Nevada          2        2         2             0         0           100%

  New Hampshire   3        6         9             3         6           50%

  New Jersey      11       19        15            8         4           58%

  New Mexico      2        3         2             1         0           67%

  New York        8        14        21            6         13          57%

  North Carolina  13       14        21            1         8           93%

  North Dakota    4        4         4             0         0           100%

  Ohio            10       14        14            4         4           71%

  Oklahoma        3        5         5             2         2           60%

  Oregon          5        10        8             5         3           50%
  --------------- -------- --------- ------------- --------- ----------- ------------

Table I: State Counts Cont.

  -------------- --------- --------- ------------- --------- ----------- ------------
  **States**     **On MECS **MECS    **EIA Frame** **On MECS **On EIA    **Coverage
                 and EIA** Frame**                 and Not   and Not on  by Count**
                                                   on EIA**  MECS**      

  Pennsylvania   16        27        22            11        6           59%

  Rhode Island   0         0         1             0         1           \-\--

  South Carolina 4         8         4             4         0           50%

  Tennessee      12        14        15            2         3           86%

  Texas          45        58        62            13        17          78%

  Utah           0         2         1             2         1           0%

  Vermont        0         1         1             1         1           0%

  Virginia       10        12        16            2         6           83%

  Washington     9         11        10            2         1           82%

  West Virginia  4         5         6             1         2           80%

  Wisconsin      15        23        21            8         6           65%

  Wyoming        3         4         3             1         0           75%

  **Total**      **409**   **586**   **617**       **177**   **208**     **70%**
  -------------- --------- --------- ------------- --------- ----------- ------------

**Table II: Regional Counts**

  ------------ --------- --------- ------------- --------- ----------- ------------
  **States**   **On MECS **MECS    **EIA Frame** **On MECS **On EIA    **Coverage
               and EIA** Frame**                 and Not   and Not on  by Count**
                                                 on EIA**  MECS**      

  Region 1     66        104       111           38        45          **63%**

  Region 2     92        133       144           41        52          **69%**

  Region 3     188       247       265           59        77          **76%**

  Region 4     63        102       97            39        34          **62%**

  **Total**    **409**   **586**   **617**       **177**   **208**     **70%**
  ------------ --------- --------- ------------- --------- ----------- ------------

Table III: NAICS3 by State

  --------------- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- -------
                  311   312   313   321   322   323   324   325   326   327   331   333   334   335   336   337   Total

  Alaska                                  1                 1                                                     2

  Alabama                                 2           1                                                           3

  Arkansas        1                 2     1                                                                       4

  California      3                 1     4     2     4     1     3     1     1           2           1           23

  Colorado                                                  1                                                     1

  Connecticut                             1                 1                                                     2

  Delaware                                                  1                                                     1

  Florida         2                       2                 3                                                     7

  Georgia         1                       2                                                                       3

  Hawaii          1                                                                                               1

  Idaho           1                                                                                               1

  Illinois        1                       2                 1     1                 2                 1           8

  Indiana                                                                     1                       1           2

  Kansas                                              1                                                           1

  Kentucky                          2     1                 1                 1                                   5

  Louisiana       1                       2           3     4                                                     10

  Massachusetts                                             1           1     1                                   3

  Maryland                                1                                                                       1

  Maine                                   4                                                                       4

  Michigan        3                       8                 2                                         1     1     15

  Minnesota                               1                                                                       1

  Missouri              1                                                                             1           2

  North Carolina                                                        1                                         1

  New Hampshire                     1     1                                                     1                 3

  New Jersey      1                       2           1     3     1                                               8

  New Mexico                                                            1                                         1

  New York        4                       1                                               1                       6

  Ohio                  1                 2                       1                                               4

  Oklahoma                                            1                 1                                         2

  Oregon                            3     2                                                                       5

  Pennsylvania    2                       3           1     1           1     2                       1           11

  South Carolina                          3                                                           1           4

  Tennessee                         1                                                                       1     2

  Texas                                               2     10                1                                   13

  Utah                                                                        2                                   2

  Virginia                    1                             1                                                     2

  Vermont                                 1                                                                       1

  Washington                              2                                                                       2

  Wisconsin             1                 7                                                                       8

  West Virginia                                             1                                                     1

  Wyoming         1                                                                                               1

  Total           22    3     1     10    56    2     14    33    6     6     9     2     3     1     7     2     177
  --------------- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- -------

  ----------------------------------- -----------------------------------
  311 --- Food                        326 --- Plastics & Rubber Products

  312 --- Beverage & Tobacco          327 --- Nonmetallic Mineral
                                      Products

  313 --- Textile                     331 --- Primary Metal

  321 --- Wood                        333 --- Machinery

  322 --- Paper                       334 --- Computer & Electronic
                                      Product

  323 --- Printing                    335 --- Electrical Equipment,
                                      Appliance & Component

  324 --- Petroleum & Coal Products   336 --- Transportation Equipment

  325 --- Chemical                    337 --- Furniture
  ----------------------------------- -----------------------------------

Co*verage by Volume:*

*0.75 =* [Unweighted Quantity of Generated Electricity Matched Mfg
Estabs on MECS]{.underline}

Unweighted Quantity of Generated Electricity All In-Scope Active Mfg
Estabs on MECS

**Table IV: Regional Volumes** (Quantity of Kilowatt Hours)

+---------------+----------------+-------------------------+----------+
| **Regional    | **Matched      | **All Quantity of       | **       |
| Volumes**     | Cases on       | Generated Electricity   | Coverage |
|               | MECS**         | Cases on MECS**         | by       |
|               |                |                         | Perc     |
|               |                | **In\--Scope**          | entage** |
+---------------+----------------+-------------------------+----------+
| (kwh)         |                |                         |          |
+---------------+----------------+-------------------------+----------+
| Region 1 -    | 7,440,661,216  | 11,460,686,707          | 65%      |
| Northeast     |                |                         |          |
+---------------+----------------+-------------------------+----------+
| Region 2 -    | 9,655,144,849  | 12,734,347,167          | 76%      |
| Midwest       |                |                         |          |
+---------------+----------------+-------------------------+----------+
| Region 3 -    | 66,067,474,046 | 84,758,657,088          | 78%      |
| South         |                |                         |          |
+---------------+----------------+-------------------------+----------+
| Region 4 -    | 8,397,457,290  | 12,571,585,147          | 67%      |
| West          |                |                         |          |
+---------------+----------------+-------------------------+----------+
| US Total      | 91,560,737,401 | 121,525,276,109         | 75%      |
+---------------+----------------+-------------------------+----------+

**Table V: Volumes for Non-Matched Establishments (NAICS3 x Region)**

  ------------ ------------- ------------ --------------- ------------- ---------------- ----------------
  **Regional   **311 Food**  **321 Wood** **322 Paper**   **324         **325 Chemical** **Total**
  Volumes**                                               Petroleum &                    
                                                          Coal                           
                                                          Product**                      

  (kwh)                                                                                   

  Region 1     195,602,234   W            1,946,920,354   W             475,124,394      4,020,025,491

  Region 2     W             0            1,688,830,429   W             W                3,079,202,318

  Region 3     458,995,558   56,147,993   5,422,242,217   662,079,347   11,787,941,779   18,691,183,042

  Region 4     147,174,501   76,494,757   2,086,822,271   W              W               4,174,127,857
  ------------ ------------- ------------ --------------- ------------- ---------------- ----------------

NOTE: W -- Withheld to avoid disclosing data for individual
establishments.

**What are potential reasons for differences between EIA and the 2002
MECS?**

-   Boundaries of the facility may be different.

-   NAICS Codes are self-determined on the EIA frame.

-   The EIA frames include manufacturing and non-manufacturing
    establishments. For the purpose of this frame we looked at only
    manufacturing.

-   Removed plants that we determined were outside the 1-megawatt
    capacity threshold for EIA frames.

-   Data collected on the generation of electricity is measured
    differently on each survey.

**What are the characteristics of missing establishments?**

-   Having multiple owners for a single facility made matching difficult
    and could result in some non-matches.

-   Possibly not sampled in the MECS survey for 2002.

Attachment IV: Report on Frames Coverage of EIA 5

The EIA-5 is an annual survey that publishes data collected from coke
plants within the United States. There are 19 establishments in 10
states on the EIA-5 frame[^1].

# **Methodology**

**Matching:**

During the first phase of the matching, we determined that all 19
establishments were classified in manufacturing. The establishments that
reported in the following ten digit product codes[^2] made up the frame
used to compare establishments on the EIA-5 frame.

> 3241991111 Coke oven products, coke (excluding screenings and breeze)
> made in coke oven establishments
>
> 3241991121 Coke oven products, screenings and breeze, made in coke
> oven establishments
>
> 3311111101 Coke oven products, coke (excluding screenings and breeze)
> made in steel mills

3311111103 Coke oven products, screenings and breeze, made in steel
mills

**Coverage:**

*Coverage by Counts:* For the EIA-5, the following equation applies to
percent of coverage by count:

0.83 = [Number of Matched Mfg Establishments that produced Coke and
Breeze]{.underline}

Number of Active Mfg Establishments that produced Coke and Breeze

There are 4 establishments on the EC frame missing from EIA's frame and;
there is one establishment on EIA's frame missing from EC frame.
Addresses were used based on EIA's frame.

# 

# Table I: States counts

  ------------------- -------- -------- -------- -------- -------- -------- -------- -------- -------- -------- ---------
  **Counts**          **AL**   **IL**   **IN**   **KY**   **MI**   **NY**   **OH**   **PA**   **VA**   **WV**   **U.S.
                                                                                                                Total**

  On both EC and      3        1        4        1        1        1        2        4        1        1        19
  EIA-5 Frames                                                                                                  

  EC Frame (Product   3        1        5        1        3        1        2        5        1        1        23
  Codes 3241991111,                                                                                             
  3311111101,                                                                                                   
  3241991121, and                                                                                               
  3311111103)                                                                                                   

  EIA-5 Frame         3        1        5        1        1        1        2        4        1        1        20

  On EC and Not on    0        0        1        0        2        0        0        1        0        0        4
  EIA-5                                                                                                         

  On EIA-5 and Not on 0        0        1        0        0        0        0        0        0        0        1
  EC                                                                                                            

  Coverage by count   100      100      0.80     100      0.33     100      100      0.8      100      100      0.83
  ------------------- -------- -------- -------- -------- -------- -------- -------- -------- -------- -------- ---------

*Coverage by Volume:* Manufacturing establishments on the EIA-5
accounted for 98% of the total shipments reported to the Economic
Census.

NOTE: There is a 6% imputation rate on the total volumes for coke and
breeze from the Economic Census non-response.

0.98 = [Unweighted Quantity of Shipments of Coke and Breeze Matched Mfg
Establishments on EC]{.underline} Unweighted Quantity of Shipments of
Coke and Breeze All active Mfg Establishments on EC

**Table II: Total Volumes** (Quantity of Shipments for Coke and Breeze
in Short Tons)

  -------------------------------------------------- --------------------
  **Volume (Short Tons)**                            **U.S. Total**

  Matched Cases on EC                                13,238,329

  All Cases on EC                                    13,503,791

  Coverage by Volume                                 0.98
  -------------------------------------------------- --------------------

**What are potential reasons for differences between EIA and Economic
Census?**

-   Steel companies are contracting out coke production.

-   Changes in ownership, including joint ownerships of a single coke
    plant.

## Attachment V: Report on Frame Coverage for EIA-63a

The EIA-63a is an annual survey that publishes data collected from
manufacturers of Solar Thermal Collectors within the United States. The
frame consisted of 20 establishments in 10 states.

**Methodology:**

**Matching:**

During the first phase, we determined that 13 of the 20 EIA-63a
establishments were classified as manufacturing. The BR had 3
establishments classified in the wholesale sector, 2 establishments
classified in construction, 2 did not match to any Business Register
establishment. Also 1 establishment in manufacturing went out of
business in 2002 and had reported no value to the EIA-63a. These 8
establishments accounted for 10% of the total product value reported to
the EIA-63a. They are not included in tables below. After subtracting
out the value of the 8 establishments, the EIA-63a total product value
was 90% of the total product value reported to the Economic Census for
Solar Thermal collectors. The Economic Census had 3 more establishments
reported than did the EIA-63a and the value reported by these
establishments was 6% of the total product value reported to the
Economic Census. For each of the 3 establishments, Solar Thermal
Collectors were not the primary product manufactured. The EIA-63a
surveyed all 4 establishments that reported Solar Thermal Collectors as
the primary product. These 4 establishments accounted for 83% of the
total product value reported to the Economic Census.

The manufacturing sector of the Economic Census has production of these
Solar Thermal Collectors in NAICS industry 333414, Heating Equipment
(Except Warm Air Furnaces) Manufacturing. The Solar Thermal Collectors
producers report code 333414A136, Solar Energy Collectors (Water or
Air). The establishments that reported code 333414A136 make up the frame
for comparison.

When the file for product code 333414A136 was initially created, we
found 6 establishments in the EIA-63a frame were non-mailed
establishments within the manufacturing sector of the 2002 Economic
Census. We researched these establishments and verified that they were
manufacturing Solar Thermal Collectors and added the detailed data from
the EIA-63a to the product code 333414A136. These additions to product
code 333414A136 brought the number of establishments to 14. One
establishment was found to have incorrectly reported in product code
333414A136, this establishment was corrected and the total number of
establishments in the frame for the 2002 Economic Census for Solar
Thermal Collectors producers was 13.

**Coverage:**

*Coverage by Counts:* For the EIA-63a, the following equation applies to
percent of coverage by count:

0.77 = [Number of Matched Mfg Establishments that produced Solar Thermal
Collectors]{.underline}

Number of Active Mfg Establishments that produced Solar Thermal
Collectors

Table I: State counts

<table>
<colgroup>
<col style="width: 3%" />
<col style="width: 40%" />
<col style="width: 6%" />
<col style="width: 6%" />
<col style="width: 6%" />
<col style="width: 5%" />
<col style="width: 6%" />
<col style="width: 6%" />
<col style="width: 6%" />
<col style="width: 11%" />
</colgroup>
<tbody>
<tr class="odd">
<td></td>
<td><h4 id="counts">Counts</h4></td>
<td><strong>CA</strong></td>
<td><strong>FL</strong></td>
<td><strong>ME</strong></td>
<td><strong>MI</strong></td>
<td><strong>NJ</strong></td>
<td><strong>NV</strong></td>
<td><strong>TX</strong></td>
<td><strong>Total US</strong></td>
</tr>
<tr class="even">
<td></td>
<td>On both EC and EIA-63a Frames</td>
<td>5</td>
<td>2</td>
<td>0</td>
<td>0</td>
<td>3</td>
<td>0</td>
<td>0</td>
<td>10</td>
</tr>
<tr class="odd">
<td></td>
<td>EC Frame (Product Code 333414A136)</td>
<td>6</td>
<td>2</td>
<td>0</td>
<td>0</td>
<td>3</td>
<td>1</td>
<td>1</td>
<td>13</td>
</tr>
<tr class="even">
<td></td>
<td>EIA-63a Frame</td>
<td>6</td>
<td>2</td>
<td>1</td>
<td>1</td>
<td>3</td>
<td>0</td>
<td>0</td>
<td>13</td>
</tr>
<tr class="odd">
<td></td>
<td>On EC and Not on EIA-63a</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>3</td>
</tr>
<tr class="even">
<td></td>
<td>On EIA-63a and Not on EC</td>
<td>1</td>
<td>0</td>
<td>1</td>
<td>1</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>3</td>
</tr>
<tr class="odd">
<td></td>
<td>Coverage by count</td>
<td>0.83</td>
<td>100</td>
<td>-</td>
<td>-</td>
<td>100</td>
<td>-</td>
<td>-</td>
<td>0.77</td>
</tr>
</tbody>
</table>

*Coverage by Volume:* EIA-63a total product value from matched
manufacturing establishments was 94% of the total product value reported
to the Economic Census.

0.94 = [Unweighted product value of Matched Mfg Establishments that
produce solar thermal collectors]{.underline} Unweighted product value
of all Mfg Establishments that produce Solar Thermal Collectors

# **Reasons and Characteristics for difference between EIA and Economic Census**

-   There are 7 establishments on EIA's frame not in manufacturing.

-   There are 3 establishments on EIA's frame not on the Economic
    Census.

```{=html}
<!-- -->
```
-   There are 3 different establishments that reported Solar Thermal
    Collectors to the Economic Census not on EIA's frame.

**-** These 3 establishments missing from EIA's frame are located in
California, Nevada, and Texas.

> \- These 3 establishments missing from EIA's frame account for 6% of
> the total production value reported to Economic Census.

## Attachment VI: Report on Frames Coverage of EIA 63b

The EIA-63b is an annual survey that publishes data collected from
manufacturers, wholesalers, and importers/exporters of Photovoltaic
Modules and Solar Cells. The frame consisted of 19 establishments in 13
states. This frame was matched to the MA 334Q.

For establishments that are classified as manufacturing, the MA 334Q
publishes data on value of shipment at the 7 and 10 digit product detail
regardless of the industry classifications of the establishments that
manufactures the given product.

# **Methodology**

**Matching:**

During the first phase of the matching, we determined that 7 of the 19
establishments were not classified in manufacturing. The BR had 4
establishments classified as service, 2 establishments classified in the
wholesale sector, 1 establishments classified as retail. These 7
establishments accounted for 29% of the total product value reported to
the EIA-63b. They are not included in tables below. One establishment
classified in manufacturing did not report production of photovoltaic
modules or solar cells on the MA 334Q. The remaining 11 establishments
are reporting manufacturing activity in 10 states.

The MA 334Q has production of these photovoltaic modules and solar cells
in NAICS industry 334413, Semiconductor and Related Device
Manufacturing. The MA 334Q publishes products by seven-digit product
class and by ten-digit product detail. The photovoltaic modules
producers report code 334413A110, Light sensitive and light-emitting
devices, photovoltaic modules. The solar cell producers report code
334413A105, Light sensitive and light-emitting devices, solar cells. The
establishments reporting in 334413A110 or 334413A105 or both make up the
frame for comparison. The file contained 9 establishments all reporting
photovoltaic modules, 8 establishments reporting producing solar cells.
Five of the 8 establishments reporting solar cells were also reporting
photovoltaic modules. We compared 11 in manufacturing on EIA with 12 on
MA334Q in the manufacturing sector.

**Coverage:**

*Coverage by Counts:* For the EIA-63b, the following equation applies to
percent of coverage by count:

1.00 = [Number of Matched Mfg Establishments that produced Photovoltaic
Modules]{.underline}

Number of Active Mfg Establishments that produced Photovoltaic Modules

0.88 = [Number of Matched Mfg Establishments that produced Solar
Cells]{.underline}

Number of Active Mfg Establishments that produced Solar Cells

Five of 12 establishments manufacture both photovoltaic modules and
solar cells. Four establishments only manufacture photovoltaic modules,
and three establishments only solar cells.

Table I: State counts

  -- ------------------ -------- -------- -------- -------- -------- -------- -------- -------- -------- -------- ---------
     **Counts**         **CA**   **DE**   **IA**   **MA**   **MD**   **ME**   **MI**   **NM**   **OH**   **PA**   **U.S.
                                                                                                                  Total**

     On both MA334Q and 2        1        1        2        1        0        1        1        1        1        11
     EIA-63b Frames                                                                                               

     MA334Q Frame       3        1        1        2        1        0        1        1        1        1        12
     (Product Code                                                                                                
     334413A110 or                                                                                                
     334413A105)                                                                                                  

     EIA-63b Frame      2        1        1        2        1        1        1        1        1        1        12

     On MA334Q and Not  1        0        0        0        0        0        0        0        0        0        1
     on EIA-63b                                                                                                   

     On EIA-63b and Not 0        0        0        0        0        1        0        0        0        0        1
     on MA334Q                                                                                                    

     Coverage by count  0.66     100      100      100      100      \-\--    100      100      100      100      0.92
  -- ------------------ -------- -------- -------- -------- -------- -------- -------- -------- -------- -------- ---------

*Coverage by Volume:* The coverage is 100% for photovoltaic modules and
unavailable for solar cells due to disclosure limitations.

1.00 = [Unweighted product value of Matched Mfg Establishments that
produce Photovoltaic Modules]{.underline} Unweighted product value of
all Mfg Establishments that produce Photovoltaic Modules

# **Reasons and Characteristics for difference between EIA and Economic Census**

-   One establishment in the manufacturing sector that reported
    production on EIA's frame did not report photovoltaic production on
    the MA 334Q.

-   Establishments manufacturing integrated circuits, opt-electronics,
    non-photovoltaic semiconductors were not part of the EIA's frame and
    not included in counts**.**

-   EIA is missing one establishment reporting solar cells production in
    California.

[^1]: One establishment is jointly owned by two respondents on EIA's
    Frame counting as one in tables.

[^2]: These codes are reported in two different 6-digit NAICS
    industries. Coal Coke Oven establishments are classified in All
    Other Petroleum and Coal Products Manufacturing 324199, and Steel
    Mills are classified in Iron and Steel Mills 331111.