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Q641. Our utility owns power plants that are subject to Part 98 subpart D and 100-150 substations. Do we report SF6 and PFC emissions under subpart DD as a separate facility or together? 
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A641.

...

Subpart

...

D

...

and

...

subpart

...

DD

...

emissions

...

should

...

not

...

be

...

submitted

...

on

...

the

...

same

...

report.

...

There

...

are

...

different

...

facility

...

definitions

...

for

...

subpart

...

D

...

and

...

subpart

...

DD.

...

The

...

applicability

...

for

...

each

...

subpart

...

must

...

be

...

separately

...

evaluated

...

according

...

to

...

the

...

appropriate

...

facility

...

definition.

...

The

...

subpart

...

DD

...

definition

...

of

...

facility

...

(see

...

98.308)

...

applies

...

only

...

to

...

electrical

...

transmission

...

and

...

distribution

...

equipment.

...

Based

...

on

...

that

...

definition,

...

a

...

facility

...

is

...

comprised

...

of

...

all

...

the

...

substations

...

(1)

...

that

...

you

...

own,

...

service,

...

or

...

maintain;

...

(2)

...

that

...

are

...

linked

...

through

...

electric

...

power

...

transmission

...

or

...

distribution

...

lines;

...

and

...

(3)

...

that

...

function

...

as

...

an

...

integrated

...

unit.

...

All

...

equipment

...

that

...

meets

...

these

...

criteria

...

is

...

part

...

of

...

a

...

single

...

facility

...

that

...

must

...

be

...

registered

...

separately

...

from

...

the

...

power

...

stations.

...

Your

...

100-150

...

substations

...

could

...

be

...

a

...

single

...

facility

...

or

...

multiple

...

facilities

...

depending

...

on

...

how

...

they

...

are

...

configured.

...

All

...

of

...

the

...

criteria

...

in

...

the

...

definition

...

above

...

must

...

be

...

met

...

for

...

the

...

substations

...

to

...

be

...

considered

...

one

...

facility.

...

For

...

example,

...

substations

...

and

...

other

...

electric

...

transmission

...

and

...

distribution

...

equipment

...

lines

...

that

...

are

...

linked

...

through

...

separate

...

transmission

...

or

...

distribution

...

or

...

that

...

do

...

not

...

function

...

as

...

an

...

integrated

...

unit

...

would

...

be

...

considered

...

a

...

separate

...

facility

...

(or

...

facilities,

...

as

...

appropriate).

...

In

...

any

...

scenario,

...

the

...

subpart

...

DD

...

emissions

...

should

...

not

...

be

...

reported

...

at

...

the

...

same

...

facility

...

that

...

subpart

...

D

...

emissions

...

are

...

reported

...

for.

...

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Updated

on

on

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Source: EPA (David Jacobson, 3/20/2012)

Approval / Publishing History: Version 1

Expiration : none

Relevant Subpart: DD
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