nhh operational issues - elexon · hh msids excl ums *data drawn from svaa (d0081). all figures...

27
David Kemp 11 August 2010 HH & NHH Operational Issues SAF 97

Upload: others

Post on 03-Aug-2020

0 views

Category:

Documents


0 download

TRANSCRIPT

Page 1: NHH Operational Issues - ELEXON · HH MSIDs excl UMS *Data drawn from SVAA (D0081). All figures include de-energised sites. UMS Sites excluded. SF 0 2,000 4,000 6,000 8,000 10,000

• David Kemp• 11 August 2010

HH & NHH Operational Issues

SAF 97

Page 2: NHH Operational Issues - ELEXON · HH MSIDs excl UMS *Data drawn from SVAA (D0081). All figures include de-energised sites. UMS Sites excluded. SF 0 2,000 4,000 6,000 8,000 10,000

112,400

112,600

112,800

113,000

113,200

113,400

113,600

113,800

114,000

90%

91%

92%

93%

94%

95%

96%

97%

98%

99%

100%

05-J

ul-

09

19-J

ul-

09

02-A

ug-0

9

16-A

ug-0

9

30-A

ug-0

9

13-S

ep-0

9

27-S

ep-0

9

11-O

ct-

09

25-O

ct-

09

08-N

ov-0

9

22-N

ov-0

9

06-D

ec-0

9

20-D

ec-0

9

03-J

an

-10

17-J

an

-10

31-J

an

-10

14-F

eb-1

0

28-F

eb-1

0

14-M

ar-

10

28-M

ar-

10

11-A

pr-

10

25-A

pr-

10

09-M

ay-1

0

23-M

ay-1

0

06-J

un

-10

20-J

un

-10

04-J

ul-

10

MSID

Co

un

t

Pe

rce

nta

ge (

%)

Settlement Date

Half Hourly Performance - SF

% HH Energy on Actuals % HH MSIDs on Actuals Total Number of HH MSIDs

HH AA % Update

*Data drawn from SVAA (D0081). All figures include de-energised sites. UMS Sites excluded.

1/2

SF

A: One Supplier had

a lot more HH

registrations at the

October 2009 contract

round, resulting in

more Estimates being

submitted.

B: This drop in MSID

count is due to one

Supplier moving

MPANs from HH to

NHH.

C: This drop in MSID

count is due to

another Supplier

moving a few MPANs

from HH to NHH.

D: This drop is due to

the same Supplier as

in B moving more

MPANs from HH to

NHH.

A

C

D FE

B

Page 3: NHH Operational Issues - ELEXON · HH MSIDs excl UMS *Data drawn from SVAA (D0081). All figures include de-energised sites. UMS Sites excluded. SF 0 2,000 4,000 6,000 8,000 10,000

112,400

112,600

112,800

113,000

113,200

113,400

113,600

113,800

114,000

90%

91%

92%

93%

94%

95%

96%

97%

98%

99%

100%

05-J

ul-

09

19-J

ul-

09

02-A

ug-0

9

16-A

ug-0

9

30-A

ug-0

9

13-S

ep-0

9

27-S

ep-0

9

11-O

ct-

09

25-O

ct-

09

08-N

ov-0

9

22-N

ov-0

9

06-D

ec-0

9

20-D

ec-0

9

03-J

an

-10

17-J

an

-10

31-J

an

-10

14-F

eb-1

0

28-F

eb-1

0

14-M

ar-

10

28-M

ar-

10

11-A

pr-

10

25-A

pr-

10

09-M

ay-1

0

23-M

ay-1

0

06-J

un

-10

20-J

un

-10

04-J

ul-

10

MSID

Co

un

t

Pe

rce

nta

ge (

%)

Settlement Date

Half Hourly Performance - SF

% HH Energy on Actuals % HH MSIDs on Actuals Total Number of HH MSIDs

HH AA % Update

*Data drawn from SVAA (D0081). All figures include de-energised sites. UMS Sites excluded.

2/2

SF

A

C

D FE

B

E: This drop in MSID

count is due to a

Supplier moving a few

MPANs from HH to

NHH.

F: This rise in the

number of HH MSIDs

coincides with the

April 2010 contract

round. Suppliers may

have moved MPANs

from NHH to HH as

part of this.

Page 4: NHH Operational Issues - ELEXON · HH MSIDs excl UMS *Data drawn from SVAA (D0081). All figures include de-energised sites. UMS Sites excluded. SF 0 2,000 4,000 6,000 8,000 10,000

112,400

112,600

112,800

113,000

113,200

113,400

113,600

113,800

90%

91%

92%

93%

94%

95%

96%

97%

98%

99%

100%

08-J

un

-09

22-J

un

-09

06-J

ul-

09

20-J

ul-

09

03-A

ug-0

9

17-A

ug-0

9

31-A

ug-0

9

14-S

ep-0

9

28-S

ep-0

9

12-O

ct-

09

26-O

ct-

09

09-N

ov-0

9

23-N

ov-0

9

07-D

ec-0

9

21-D

ec-0

9

04-J

an

-10

18-J

an

-10

01-F

eb-1

0

15-F

eb-1

0

01-M

ar-

10

15-M

ar-

10

29-M

ar-

10

12-A

pr-

10

26-A

pr-

10

10-M

ay-1

0

24-M

ay-1

0

07-J

un

-10

MSID

Co

un

t

Pe

rce

nta

ge (

%)

Settlement Date

Half Hourly Performance - R1

% HH Energy on Actuals % HH MSIDs on Actuals Total Number of HH MSIDs

HH AA % Update

*Data drawn from SVAA (D0081). All figures include de-energised sites. UMS Sites excluded.

R1

A

A: This is the same

as B in the SF graph.

B: This is the same

as C in the SF graph.

C: This is the same

as D in the SF graph.

D: This is the same

as E in the SF graph.

E: This is the same

as F in the SF graph.

B

C

D

E

Page 5: NHH Operational Issues - ELEXON · HH MSIDs excl UMS *Data drawn from SVAA (D0081). All figures include de-energised sites. UMS Sites excluded. SF 0 2,000 4,000 6,000 8,000 10,000

HH AA % Update

*Data drawn from SVAA (D0081). All figures include de-energised sites. UMS Sites excluded.

RF

109,000

109,500

110,000

110,500

111,000

111,500

112,000

112,500

90%

91%

92%

93%

94%

95%

96%

97%

98%

99%

100%

08-J

un

-08

22-J

un

-08

06-J

ul-

08

20-J

ul-

08

03-A

ug-0

8

17-A

ug-0

8

31-A

ug-0

8

14-S

ep-0

8

28-S

ep-0

8

12-O

ct-

08

26-O

ct-

08

09-N

ov-0

8

23-N

ov-0

8

07-D

ec-0

8

21-D

ec-0

8

04-J

an

-09

18-J

an

-09

01-F

eb-0

9

15-F

eb-0

9

01-M

ar-

09

15-M

ar-

09

29-M

ar-

09

12-A

pr-

09

26-A

pr-

09

10-M

ay-0

9

24-M

ay-0

9

07-J

un

-09

MSID

Co

un

t

Pe

rce

nta

ge (

%)

Settlement Date

Half Hourly Performance - RF

% HH Energy on Actuals % HH MSIDs on Actuals Total Number of HH MSIDs

Page 6: NHH Operational Issues - ELEXON · HH MSIDs excl UMS *Data drawn from SVAA (D0081). All figures include de-energised sites. UMS Sites excluded. SF 0 2,000 4,000 6,000 8,000 10,000

HH MSIDs excl UMS

*Data drawn from SVAA (D0081). All figures include de-energised sites. UMS Sites excluded.

SF

0

2,000

4,000

6,000

8,000

10,000

12,000

14,000

16,000

05-J

ul-

09

19-J

ul-

09

02-A

ug-0

9

16-A

ug-0

9

30-A

ug-0

9

13-S

ep-0

9

27-S

ep-0

9

11-O

ct-

09

25-O

ct-

09

08-N

ov-0

9

22-N

ov-0

9

06-D

ec-0

9

20-D

ec-0

9

03-J

an

-10

17-J

an

-10

31-J

an

-10

14-F

eb-1

0

28-F

eb-1

0

14-M

ar-

10

28-M

ar-

10

11-A

pr-

10

25-A

pr-

10

09-M

ay-1

0

23-M

ay-1

0

06-J

un

-10

20-J

un

-10

04-J

ul-

10

MSI

D C

ou

nt

Settlement Date

HH MSID Count (excl UMS) - SF

_A Eastern _B East Midlands _C London_D Merseyside and North Wales _E Midlands _F Northern_G North Western _H Southern _J South Eastern_K South Wales _L South Western _M Yorkshire_N South Scotland _P North Scotland

Page 7: NHH Operational Issues - ELEXON · HH MSIDs excl UMS *Data drawn from SVAA (D0081). All figures include de-energised sites. UMS Sites excluded. SF 0 2,000 4,000 6,000 8,000 10,000

HH MSIDs excl UMS

*Data drawn from SVAA (D0081). All figures include de-energised sites. UMS Sites excluded.

RF

0

2,000

4,000

6,000

8,000

10,000

12,000

14,000

16,000

08-J

un

-08

22-J

un

-08

06-J

ul-

08

20-J

ul-

08

03-A

ug-0

8

17-A

ug-0

8

31-A

ug-0

8

14-S

ep-0

8

28-S

ep-0

8

12-O

ct-

08

26-O

ct-

08

09-N

ov-0

8

23-N

ov-0

8

07-D

ec-0

8

21-D

ec-0

8

04-J

an

-09

18-J

an

-09

01-F

eb-0

9

15-F

eb-0

9

01-M

ar-

09

15-M

ar-

09

29-M

ar-

09

12-A

pr-

09

26-A

pr-

09

10-M

ay-0

9

24-M

ay-0

9

07-J

un

-09

MSI

D C

ou

nt

Settlement Date

HH MSID Count (excl UMS) - RF

_A Eastern _B East Midlands _C London_D Merseyside and North Wales _E Midlands _F Northern_G North Western _H Southern _J South Eastern_K South Wales _L South Western _M Yorkshire_N South Scotland _P North Scotland

Page 8: NHH Operational Issues - ELEXON · HH MSIDs excl UMS *Data drawn from SVAA (D0081). All figures include de-energised sites. UMS Sites excluded. SF 0 2,000 4,000 6,000 8,000 10,000

0.00%

0.10%

0.20%

0.30%

0.40%

0.50%

0.60%

0.70%

0.80%

0.90%

08-J

un

-08

22-J

un

-08

06-J

ul-

08

20-J

ul-

08

03-A

ug-0

8

17-A

ug-0

8

31-A

ug-0

8

14-S

ep-0

8

28-S

ep-0

8

12-O

ct-

08

26-O

ct-

08

09-N

ov-0

8

23-N

ov-0

8

07-D

ec-0

8

21-D

ec-0

8

04-J

an

-09

18-J

an

-09

01-F

eb-0

9

15-F

eb-0

9

01-M

ar-

09

15-M

ar-

09

29-M

ar-

09

12-A

pr-

09

26-A

pr-

09

10-M

ay-0

9

24-M

ay-0

9

07-J

un

-09

Pe

rce

nta

ge (

%)

Settlement Date

NHH Default EACs - RF

_A Eastern _B East Midlands _C London_D Merseyside and North Wales _E Midlands _F Northern_G North Western _H Southern _J South Eastern_K South Wales _L South Western _M Yorkshire_N South Scotland _P North Scotland Market Average

NHH Default EACs 1/2

RF

B

A

A: The rise in _G in

the latter half of June

2008 is due to the

number of Default

EACs for one Supplier

increasing over a

period.

B: The steady rise in

_J is due mainly to

one Supplier’s Default

EACs increasing. The

rise then sharp drop

in mid-July 2008 is

due to another

Supplier.

C: The fall in _J in

October 2008 can be

attributed to two

Suppliers decreasing

the number of Default

EACs.

CD

Page 9: NHH Operational Issues - ELEXON · HH MSIDs excl UMS *Data drawn from SVAA (D0081). All figures include de-energised sites. UMS Sites excluded. SF 0 2,000 4,000 6,000 8,000 10,000

0.00%

0.10%

0.20%

0.30%

0.40%

0.50%

0.60%

0.70%

0.80%

0.90%

08-J

un

-08

22-J

un

-08

06-J

ul-

08

20-J

ul-

08

03-A

ug-0

8

17-A

ug-0

8

31-A

ug-0

8

14-S

ep-0

8

28-S

ep-0

8

12-O

ct-

08

26-O

ct-

08

09-N

ov-0

8

23-N

ov-0

8

07-D

ec-0

8

21-D

ec-0

8

04-J

an

-09

18-J

an

-09

01-F

eb-0

9

15-F

eb-0

9

01-M

ar-

09

15-M

ar-

09

29-M

ar-

09

12-A

pr-

09

26-A

pr-

09

10-M

ay-0

9

24-M

ay-0

9

07-J

un

-09

Pe

rce

nta

ge (

%)

Settlement Date

NHH Default EACs - RF

_A Eastern _B East Midlands _C London_D Merseyside and North Wales _E Midlands _F Northern_G North Western _H Southern _J South Eastern_K South Wales _L South Western _M Yorkshire_N South Scotland _P North Scotland Market Average

NHH Default EACs 2/2

RF

B

A

CD

D: The sharp drop in

_J in February 2009 is

due to two Suppliers

reducing the number

of Default EACs.

Page 10: NHH Operational Issues - ELEXON · HH MSIDs excl UMS *Data drawn from SVAA (D0081). All figures include de-energised sites. UMS Sites excluded. SF 0 2,000 4,000 6,000 8,000 10,000

0.00%

0.20%

0.40%

0.60%

0.80%

1.00%

1.20%

18-D

ec-0

8

01-J

an

-09

15-J

an

-09

29-J

an

-09

12-F

eb-0

9

26-F

eb-0

9

12-M

ar-

09

26-M

ar-

09

09-A

pr-

09

23-A

pr-

09

07-M

ay-0

9

21-M

ay-0

9

04-J

un

-09

18-J

un

-09

02-J

ul-

09

16-J

ul-

09

30-J

ul-

09

13-A

ug-0

9

27-A

ug-0

9

10-S

ep-0

9

24-S

ep-0

9

08-O

ct-

09

22-O

ct-

09

05-N

ov-0

9

19-N

ov-0

9

03-D

ec-0

9

17-D

ec-0

9

Pe

rce

nta

ge (

%)

Settlement Date

NHH Default EACs - R3

_A Eastern _B East Midlands _C London_D Merseyside and North Wales _E Midlands _F Northern_G North Western _H Southern _J South Eastern_K South Wales _L South Western _M Yorkshire_N South Scotland _P North Scotland Market Average

NHH Default EACsR3

A

A: The drop in _J in

May 2009 is attributed

to two Suppliers

decreasing the

number of Default

EACs.

B: The gradual rise

then fall in _A is

mainly due to one

Supplier raising then

gradually decreasing

Default EACs.

C: The drop in _J in

September 2009 is

attributed to two

Suppliers reducing

the number of Default

EACs.

CB

Page 11: NHH Operational Issues - ELEXON · HH MSIDs excl UMS *Data drawn from SVAA (D0081). All figures include de-energised sites. UMS Sites excluded. SF 0 2,000 4,000 6,000 8,000 10,000

TDC Formal Notifications

GSP Group April 2008 May 2008 June 2008 July 2008

_A Eastern Authorised Provisional

_B East Midlands Authorised Provisional

_C London Authorised Provisional

_D Merseyside & North Wales Authorised Provisional

_E Midlands Authorised Provisional

_F Northern Authorised Provisional Postponed

_G North Western Authorised Provisional

_H Southern Not in process

_J South Eastern Authorised Provisional

_K South Wales Authorised Provisional

_L South Western Authorised Provisional

_M Yorkshire Authorised Provisional

_N South Scotland Not in process

_P North Scotland Not in process

TDC139 – Jul 10

Page 12: NHH Operational Issues - ELEXON · HH MSIDs excl UMS *Data drawn from SVAA (D0081). All figures include de-energised sites. UMS Sites excluded. SF 0 2,000 4,000 6,000 8,000 10,000

TDC Formal NotificationsTDC141 – Aug 10

GSP Group May 2008 June 2008 July 2008 August 2008

_A Eastern Authorised Provisional

_B East Midlands Authorised Provisional

_C London Authorised Provisional

_D Merseyside & North Wales Authorised Provisional

_E Midlands Authorised Provisional

_F Northern Authorised Postponed Provisional

_G North Western Authorised Provisional

_H Southern Not in process

_J South Eastern Authorised Provisional

_K South Wales Authorised Provisional

_L South Western Authorised Provisional

_M Yorkshire Authorised Provisional

_N South Scotland Not in process

_P North Scotland Not in process

Page 13: NHH Operational Issues - ELEXON · HH MSIDs excl UMS *Data drawn from SVAA (D0081). All figures include de-energised sites. UMS Sites excluded. SF 0 2,000 4,000 6,000 8,000 10,000

0 KWh

5,000,000 KWh

10,000,000 KWh

15,000,000 KWh

20,000,000 KWh

25,000,000 KWh

30,000,000 KWh

35,000,000 KWh

40,000,000 KWh

45,000,000 KWh

Nov-2

007

Dec-

2007

Jan-2

008

Feb-2

008

Mar-

2008

Apr-

2008

May-2

008

Jun-2

008

Jul-2008

Aug-2

008

Sep-2

008

Oct

-2008

Nov-2

008

Dec-

2008

Jan-2

009

Feb-2

009

Mar-

2009

Apr-

2009

May-2

009

Jun-2

009

Jul-2009

Aug-2

009

Sep-2

009

Oct

-2009

Nov-2

009

SE

AE

Settlement Month

Crystallised DF Projected DF (upper) Projected DF (lower) Crystallised RF

Projected RF (upper) Projected RF (lower) Threshold

Historical Supplier Energy Allocation Error (SEAE):

Market

Erroneous Large EAC/AA’s Historical SEAE Market View

A: The large errors in

October 2008 are due to a

Supplier leaving the Market,

leaving a significant volume

of error in Settlement for this

period.

As this error affects most

GSP Groups, this spike will

also appear in most of the

following graphs. For this

reason, it will not be

highlighted within them.

A

Page 14: NHH Operational Issues - ELEXON · HH MSIDs excl UMS *Data drawn from SVAA (D0081). All figures include de-energised sites. UMS Sites excluded. SF 0 2,000 4,000 6,000 8,000 10,000

Erroneous Large EAC/AA’s Historical SEAE GSP Group _A

0 KWh

5,000,000 KWh

10,000,000 KWh

15,000,000 KWh

20,000,000 KWh

25,000,000 KWh

Nov-2

007

Dec-

2007

Jan-2

008

Feb-2

008

Mar-

2008

Apr-

2008

May-2

008

Jun-2

008

Jul-2008

Aug-2

008

Sep-2

008

Oct

-2008

Nov-2

008

Dec-

2008

Jan-2

009

Feb-2

009

Mar-

2009

Apr-

2009

May-2

009

Jun-2

009

Jul-2009

Aug-2

009

Sep-2

009

Oct

-2009

Nov-2

009

SE

AE

Settlement Month

Crystallised DF Projected DF (upper) Projected DF (lower) Crystallised RF

Projected RF (upper) Projected RF (lower) Threshold

Historical Supplier Energy Allocation Error (SEAE):

Eastern (_A)

Page 15: NHH Operational Issues - ELEXON · HH MSIDs excl UMS *Data drawn from SVAA (D0081). All figures include de-energised sites. UMS Sites excluded. SF 0 2,000 4,000 6,000 8,000 10,000

Erroneous Large EAC/AA’s Historical SEAE GSP Group _B

0 KWh

500,000 KWh

1,000,000 KWh

1,500,000 KWh

2,000,000 KWh

2,500,000 KWh

3,000,000 KWh

3,500,000 KWh

Nov-2

007

Dec-

2007

Jan-2

008

Feb-2

008

Mar-

2008

Apr-

2008

May-2

008

Jun-2

008

Jul-2008

Aug-2

008

Sep-2

008

Oct

-2008

Nov-2

008

Dec-

2008

Jan-2

009

Feb-2

009

Mar-

2009

Apr-

2009

May-2

009

Jun-2

009

Jul-2009

Aug-2

009

Sep-2

009

Oct

-2009

Nov-2

009

SE

AE

Settlement Month

Crystallised DF Projected DF (upper) Projected DF (lower) Crystallised RF

Projected RF (upper) Projected RF (lower) Threshold

Historical Supplier Energy Allocation Error (SEAE):

East Midlands (_B)

Page 16: NHH Operational Issues - ELEXON · HH MSIDs excl UMS *Data drawn from SVAA (D0081). All figures include de-energised sites. UMS Sites excluded. SF 0 2,000 4,000 6,000 8,000 10,000

Erroneous Large EAC/AA’s Historical SEAE GSP Group _C

0 KWh

500,000 KWh

1,000,000 KWh

1,500,000 KWh

2,000,000 KWh

2,500,000 KWh

3,000,000 KWh

3,500,000 KWh

4,000,000 KWh

4,500,000 KWh

Nov-2

007

Dec-

2007

Jan-2

008

Feb-2

008

Mar-

2008

Apr-

2008

May-2

008

Jun-2

008

Jul-2008

Aug-2

008

Sep-2

008

Oct

-2008

Nov-2

008

Dec-

2008

Jan-2

009

Feb-2

009

Mar-

2009

Apr-

2009

May-2

009

Jun-2

009

Jul-2009

Aug-2

009

Sep-2

009

Oct

-2009

Nov-2

009

SE

AE

Settlement Month

Crystallised DF Projected DF (upper) Projected DF (lower) Crystallised RF

Projected RF (upper) Projected RF (lower) Threshold

Historical Supplier Energy Allocation Error (SEAE):

London (_C)

Page 17: NHH Operational Issues - ELEXON · HH MSIDs excl UMS *Data drawn from SVAA (D0081). All figures include de-energised sites. UMS Sites excluded. SF 0 2,000 4,000 6,000 8,000 10,000

Erroneous Large EAC/AA’s Historical SEAE GSP Group _D

0 KWh

500,000 KWh

1,000,000 KWh

1,500,000 KWh

2,000,000 KWh

2,500,000 KWh

3,000,000 KWh

Nov-2

007

Dec-

2007

Jan-2

008

Feb-2

008

Mar-

2008

Apr-

2008

May-2

008

Jun-2

008

Jul-2008

Aug-2

008

Sep-2

008

Oct

-2008

Nov-2

008

Dec-

2008

Jan-2

009

Feb-2

009

Mar-

2009

Apr-

2009

May-2

009

Jun-2

009

Jul-2009

Aug-2

009

Sep-2

009

Oct

-2009

Nov-2

009

SE

AE

Settlement Month

Crystallised DF Projected DF (upper) Projected DF (lower) Crystallised RF

Projected RF (upper) Projected RF (lower) Threshold

Historical Supplier Energy Allocation Error (SEAE):

Merseyside and North Wales (_D)

Page 18: NHH Operational Issues - ELEXON · HH MSIDs excl UMS *Data drawn from SVAA (D0081). All figures include de-energised sites. UMS Sites excluded. SF 0 2,000 4,000 6,000 8,000 10,000

Erroneous Large EAC/AA’s Historical SEAE GSP Group _E

0 KWh

200,000 KWh

400,000 KWh

600,000 KWh

800,000 KWh

1,000,000 KWh

1,200,000 KWh

1,400,000 KWh

1,600,000 KWh

1,800,000 KWh

Nov-2

007

Dec-

2007

Jan-2

008

Feb-2

008

Mar-

2008

Apr-

2008

May-2

008

Jun-2

008

Jul-2008

Aug-2

008

Sep-2

008

Oct

-2008

Nov-2

008

Dec-

2008

Jan-2

009

Feb-2

009

Mar-

2009

Apr-

2009

May-2

009

Jun-2

009

Jul-2009

Aug-2

009

Sep-2

009

Oct

-2009

Nov-2

009

SE

AE

Settlement Month

Crystallised DF Projected DF (upper) Projected DF (lower) Crystallised RF

Projected RF (upper) Projected RF (lower) Threshold

Historical Supplier Energy Allocation Error (SEAE):

Midalnds (_E)

Page 19: NHH Operational Issues - ELEXON · HH MSIDs excl UMS *Data drawn from SVAA (D0081). All figures include de-energised sites. UMS Sites excluded. SF 0 2,000 4,000 6,000 8,000 10,000

Erroneous Large EAC/AA’s Historical SEAE GSP Group _F

0 KWh

500,000 KWh

1,000,000 KWh

1,500,000 KWh

2,000,000 KWh

2,500,000 KWh

3,000,000 KWh

3,500,000 KWh

4,000,000 KWh

4,500,000 KWh

Nov-2

007

Dec-

2007

Jan-2

008

Feb-2

008

Mar-

2008

Apr-

2008

May-2

008

Jun-2

008

Jul-2008

Aug-2

008

Sep-2

008

Oct

-2008

Nov-2

008

Dec-

2008

Jan-2

009

Feb-2

009

Mar-

2009

Apr-

2009

May-2

009

Jun-2

009

Jul-2009

Aug-2

009

Sep-2

009

Oct

-2009

Nov-2

009

SE

AE

Settlement Month

Crystallised DF Projected DF (upper) Projected DF (lower) Crystallised RF

Projected RF (upper) Projected RF (lower) Threshold

Historical Supplier Energy Allocation Error (SEAE):

Northern (_F)

Page 20: NHH Operational Issues - ELEXON · HH MSIDs excl UMS *Data drawn from SVAA (D0081). All figures include de-energised sites. UMS Sites excluded. SF 0 2,000 4,000 6,000 8,000 10,000

Erroneous Large EAC/AA’s Historical SEAE GSP Group _G

0 KWh

1,000,000 KWh

2,000,000 KWh

3,000,000 KWh

4,000,000 KWh

5,000,000 KWh

6,000,000 KWh

7,000,000 KWh

Nov-2

007

Dec-

2007

Jan-2

008

Feb-2

008

Mar-

2008

Apr-

2008

May-2

008

Jun-2

008

Jul-2008

Aug-2

008

Sep-2

008

Oct

-2008

Nov-2

008

Dec-

2008

Jan-2

009

Feb-2

009

Mar-

2009

Apr-

2009

May-2

009

Jun-2

009

Jul-2009

Aug-2

009

Sep-2

009

Oct

-2009

Nov-2

009

SE

AE

Settlement Month

Crystallised DF Projected DF (upper) Projected DF (lower) Crystallised RF

Projected RF (upper) Projected RF (lower) Threshold

Historical Supplier Energy Allocation Error (SEAE):

North Western (_G)

Page 21: NHH Operational Issues - ELEXON · HH MSIDs excl UMS *Data drawn from SVAA (D0081). All figures include de-energised sites. UMS Sites excluded. SF 0 2,000 4,000 6,000 8,000 10,000

Erroneous Large EAC/AA’s Historical SEAE GSP Group _H

GSP Group _H is not in the

Disputes Process at this

time.

0 KWh

200,000 KWh

400,000 KWh

600,000 KWh

800,000 KWh

1,000,000 KWh

1,200,000 KWh

1,400,000 KWh

1,600,000 KWh

1,800,000 KWh

Nov-2

007

Dec-

2007

Jan-2

008

Feb-2

008

Mar-

2008

Apr-

2008

May-2

008

Jun-2

008

Jul-2008

Aug-2

008

Sep-2

008

Oct

-2008

Nov-2

008

Dec-

2008

Jan-2

009

Feb-2

009

Mar-

2009

Apr-

2009

May-2

009

Jun-2

009

Jul-2009

Aug-2

009

Sep-2

009

Oct

-2009

Nov-2

009

SE

AE

Settlement Month

Crystallised DF Projected DF (upper) Projected DF (lower) Crystallised RF

Projected RF (upper) Projected RF (lower) Threshold

Historical Supplier Energy Allocation Error (SEAE):

Southern (_H)

Page 22: NHH Operational Issues - ELEXON · HH MSIDs excl UMS *Data drawn from SVAA (D0081). All figures include de-energised sites. UMS Sites excluded. SF 0 2,000 4,000 6,000 8,000 10,000

Erroneous Large EAC/AA’s Historical SEAE GSP Group _J

0 KWh

1,000,000 KWh

2,000,000 KWh

3,000,000 KWh

4,000,000 KWh

5,000,000 KWh

6,000,000 KWh

7,000,000 KWh

8,000,000 KWh

9,000,000 KWh

Nov-2

007

Dec-

2007

Jan-2

008

Feb-2

008

Mar-

2008

Apr-

2008

May-2

008

Jun-2

008

Jul-2008

Aug-2

008

Sep-2

008

Oct

-2008

Nov-2

008

Dec-

2008

Jan-2

009

Feb-2

009

Mar-

2009

Apr-

2009

May-2

009

Jun-2

009

Jul-2009

Aug-2

009

Sep-2

009

Oct

-2009

Nov-2

009

SE

AE

Settlement Month

Crystallised DF Projected DF (upper) Projected DF (lower) Crystallised RF

Projected RF (upper) Projected RF (lower) Threshold

Historical Supplier Energy Allocation Error (SEAE):

South Eastern (_J)

Page 23: NHH Operational Issues - ELEXON · HH MSIDs excl UMS *Data drawn from SVAA (D0081). All figures include de-energised sites. UMS Sites excluded. SF 0 2,000 4,000 6,000 8,000 10,000

Erroneous Large EAC/AA’s Historical SEAE GSP Group _K

0 KWh

100,000 KWh

200,000 KWh

300,000 KWh

400,000 KWh

500,000 KWh

600,000 KWh

700,000 KWh

800,000 KWh

900,000 KWh

1,000,000 KWh

Nov-2

007

Dec-

2007

Jan-2

008

Feb-2

008

Mar-

2008

Apr-

2008

May-2

008

Jun-2

008

Jul-2008

Aug-2

008

Sep-2

008

Oct

-2008

Nov-2

008

Dec-

2008

Jan-2

009

Feb-2

009

Mar-

2009

Apr-

2009

May-2

009

Jun-2

009

Jul-2009

Aug-2

009

Sep-2

009

Oct

-2009

Nov-2

009

SE

AE

Settlement Month

Crystallised DF Projected DF (upper) Projected DF (lower) Crystallised RF

Projected RF (upper) Projected RF (lower) Threshold

Historical Supplier Energy Allocation Error (SEAE):

South Wales (_K)

Page 24: NHH Operational Issues - ELEXON · HH MSIDs excl UMS *Data drawn from SVAA (D0081). All figures include de-energised sites. UMS Sites excluded. SF 0 2,000 4,000 6,000 8,000 10,000

Erroneous Large EAC/AA’s Historical SEAE GSP Group _L

0 KWh

200,000 KWh

400,000 KWh

600,000 KWh

800,000 KWh

1,000,000 KWh

1,200,000 KWh

1,400,000 KWh

1,600,000 KWh

1,800,000 KWh

2,000,000 KWh

Nov-2

007

Dec-

2007

Jan-2

008

Feb-2

008

Mar-

2008

Apr-

2008

May-2

008

Jun-2

008

Jul-2008

Aug-2

008

Sep-2

008

Oct

-2008

Nov-2

008

Dec-

2008

Jan-2

009

Feb-2

009

Mar-

2009

Apr-

2009

May-2

009

Jun-2

009

Jul-2009

Aug-2

009

Sep-2

009

Oct

-2009

Nov-2

009

SE

AE

Settlement Month

Crystallised DF Projected DF (upper) Projected DF (lower) Crystallised RF

Projected RF (upper) Projected RF (lower) Threshold

Historical Supplier Energy Allocation Error (SEAE):

South Western (_L)

Page 25: NHH Operational Issues - ELEXON · HH MSIDs excl UMS *Data drawn from SVAA (D0081). All figures include de-energised sites. UMS Sites excluded. SF 0 2,000 4,000 6,000 8,000 10,000

Erroneous Large EAC/AA’s Historical SEAE GSP Group _M

0 KWh

500,000 KWh

1,000,000 KWh

1,500,000 KWh

2,000,000 KWh

2,500,000 KWh

3,000,000 KWh

3,500,000 KWh

4,000,000 KWh

Nov-2

007

Dec-

2007

Jan-2

008

Feb-2

008

Mar-

2008

Apr-

2008

May-2

008

Jun-2

008

Jul-2008

Aug-2

008

Sep-2

008

Oct

-2008

Nov-2

008

Dec-

2008

Jan-2

009

Feb-2

009

Mar-

2009

Apr-

2009

May-2

009

Jun-2

009

Jul-2009

Aug-2

009

Sep-2

009

Oct

-2009

Nov-2

009

SE

AE

Settlement Month

Crystallised DF Projected DF (upper) Projected DF (lower) Crystallised RF

Projected RF (upper) Projected RF (lower) Threshold

Historical Supplier Energy Allocation Error (SEAE):

Yorkshire (_M)

Page 26: NHH Operational Issues - ELEXON · HH MSIDs excl UMS *Data drawn from SVAA (D0081). All figures include de-energised sites. UMS Sites excluded. SF 0 2,000 4,000 6,000 8,000 10,000

Erroneous Large EAC/AA’s Historical SEAE GSP Group _N

GSP Group _N is not in the

Disputes Process at this

time.

0 KWh

200,000 KWh

400,000 KWh

600,000 KWh

800,000 KWh

1,000,000 KWh

1,200,000 KWh

1,400,000 KWh

Nov-2

007

Dec-

2007

Jan-2

008

Feb-2

008

Mar-

2008

Apr-

2008

May-2

008

Jun-2

008

Jul-2008

Aug-2

008

Sep-2

008

Oct

-2008

Nov-2

008

Dec-

2008

Jan-2

009

Feb-2

009

Mar-

2009

Apr-

2009

May-2

009

Jun-2

009

Jul-2009

Aug-2

009

Sep-2

009

Oct

-2009

Nov-2

009

SE

AE

Settlement Month

Crystallised DF Projected DF (upper) Projected DF (lower) Crystallised RF

Projected RF (upper) Projected RF (lower) Threshold

Historical Supplier Energy Allocation Error (SEAE):

South Scotland (_N)

Page 27: NHH Operational Issues - ELEXON · HH MSIDs excl UMS *Data drawn from SVAA (D0081). All figures include de-energised sites. UMS Sites excluded. SF 0 2,000 4,000 6,000 8,000 10,000

Erroneous Large EAC/AA’s Historical SEAE GSP Group _P

GSP Group _P is not in the

Disputes Process at this

time.

0 KWh

50,000 KWh

100,000 KWh

150,000 KWh

200,000 KWh

250,000 KWh

300,000 KWh

350,000 KWh

400,000 KWh

450,000 KWh

500,000 KWh

Nov-2

007

Dec-

2007

Jan-2

008

Feb-2

008

Mar-

2008

Apr-

2008

May-2

008

Jun-2

008

Jul-2008

Aug-2

008

Sep-2

008

Oct

-2008

Nov-2

008

Dec-

2008

Jan-2

009

Feb-2

009

Mar-

2009

Apr-

2009

May-2

009

Jun-2

009

Jul-2009

Aug-2

009

Sep-2

009

Oct

-2009

Nov-2

009

SE

AE

Settlement Month

Crystallised DF Projected DF (upper) Projected DF (lower) Crystallised RF

Projected RF (upper) Projected RF (lower) Threshold

Historical Supplier Energy Allocation Error (SEAE):

North scotland (_P)