Select Committee on Trade and Industry Written Evidence

Annex

List of Tables

1.1	Average annual gas bill by payment method
1.2	Average annual electricity bill paying by standard credit
1.3	Average annual electricity bill paying by direct debit
1.4	Average annual electricity bill paying by Prepayment meter
1.5	British Gas average annual gas bill by payment method
1.6	British Gas average annual electricity bill by payment method
1.7	EDF average annual gas bill by payment method
1.8	EDF average annual electricity bill by payment method
1.9	npower average annual gas bill by payment method
1.10	npower average annual electricity bill by payment method
1.11	Powergen average annual gas bill by payment method
1.12	Powergen average annual electricity bill by payment method
1.13	Scottish Power average annual gas bill by payment method
1.14	Scottish Power average annual electricity bill by payment method
1.15	SSE average annual gas bill by payment method
1.16	SSE average annual electricity bill by payment method
1.17	Summary of price changes 2003
1.18	Summary of price changes 2004
1.19	Cumulative price changes weighted by market share 2003
1.20	Cumulative price changes weighted by market share 2004

List of Charts

1.21 Average annual gas bill by payment method

1.22 Average annual gas bill paying by prepayment meter

1.23 Average annual electricity bill by payment method

1.24 Average annual electricity bill paying by prepayment meter

1.25 Average annual electricity green tariff bill paying by standard credit

Table 1.1:

AVERAGE ANNUAL GAS BILL BY PAYMENT METHOD

PAYING BY STANDARD CREDIT

	low user	medium user	high user
Apr 03	171	319	424
Oct 03	176	328	436
Apr 04	185	343	457
Oct 04	192	357	476
% change Apr 03 to Oct 03	3.1	2.9	2.9
% change Oct 03 to Apr 04	4.7	4.7	4.7
% change Apr 04 to Oct 04	3.7	4.0	4.1
% change Apr 03 to Apr 04	8.0	7.8	7.8
% change Oct 03 to Oct 04	8.6	9.0	9.1
% change Apr 03 to Oct 04	12.0	12.2	12.2

PAYING BY DIRECT DEBIT

	low user	medium user	high user
Apr 03	160	301	401
Oct 03	164	310	412
Apr 04	172	324	431
Oct 04	181	341	454
% change Apr 03 to Oct 03	2.5	2.9	2.8
% change Oct 03 to Apr 04	4.6	4.5	4.4
% change Apr 04 to Oct 04	5.5	5.4	5.6
% change Apr 03 to Apr 04	7.2	7.5	7.4
% change Oct 03 to Oct 04	10.3	10.2	10.2
% change Apr 03 to Oct 04	13.1	13.3	13.3

PAYING BY PREPAYMENT METER (PPM)

	low user	medium user	high user
Apr 03	183	341	453
Oct 03	185	343	456
Apr 04	193	356	472
Oct 04	201	369	489
% change Apr 03 to Oct 03	1.0	0.7	0.7
% change Oct 03 to Apr 04	4.3	3.7	3.5
% change Apr 04 to Oct 04	4.0	3.7	3.6
% change Apr 03 to Apr 04	5.4	4.4	4.2
% change Oct 03 to Oct 04	8.5	7.5	7.2
% change Apr 03 to Oct 04	9.6	8.3	7.9

Source data: TheEnergyShop.com

Table 1.5

BRITISH GAS AVERAGE ANNUAL GAS BILL BY PAYMENT METHOD

SC	low	medium	high
April 2003	198	352	462
October 2003	201	361	474
April 2004	213	382	502
October 2004	239	430	564
% change April 2003 to October 2003	1.3	2.5	2.5
% change October 2003 to April 2004	6.0	5.9	5.9
% change April 2004 to October 2004	12.5	12.4	12.4
% change April 2003 to April 2004	7.4	8.6	8.6
% change October 2003 to October 2004	19.3	19.0	19.0
% change April 2003 to October 2004	20.8	22.0	22.0
DD	low	medium	high
April 2003	170	319	426
October 2003	170	324	432
April 2004	180	343	457
October 2004	203	385	514
% change April 2003 to October 2003	0.0	1.4	1.4
% change October 2003 to April 2004	6.0	5.9	5.9
% change April 2004 to October 2004	12.5	12.4	12.4
% change April 2003 to April 2004	6.0	7.4	7.4
% change October 2003 to October 2004	19.3	19.0	19.0
% change April 2003 to October 2004	19.3	20.7	20.7
PPM	low	medium	high
April 2003	198	352	462
October 2003	203	361	474
April 2004	215	382	502
October 2004	242	430	564
% change April 2003 to October 2003	2.5	2.5	2.5
% change October 2003 to April 2004	5.9	5.9	5.9
% change April 2004 to October 2004	12.4	12.4	12.4
% change April 2003 to April 2004	8.6	8.6	8.6
% change October 2003 to October 2004	19.1	19.0	19.0
% change April 2003 to October 2004	22.0	22.0	22.0

Source data: TheEnergyShop.com.

Table 1.7

EDF AVERAGE ANNUAL GAS BILL BY PAYMENT METHOD

SC	low	medium	high
April 2003	169	309	409
October 2003	176	321	425
April 2004	195	347	455
October 2004	201	359	471
% change April 2003 to October 2003	4.0	4.0	4.0
% change October 2003 to April 2004	10.7	7.9	7.1
% change April 2004 to October 2004	3.4	3.4	3.4
% change April 2003 to April 2004	15.1	12.2	11.4
% change October 2003 to October 2004	14.5	11.6	10.8
% change April 2003 to October 2004	19.1	16.1	15.2
DD	low	medium	high
April 2003	161	305	404
October 2003	162	314	418
April 2004	179	347	455
October 2004	185	359	471
% change April 2003 to October 2003	0.7	3.1	3.3
% change October 2003 to April 2004	10.2	10.4	9.0
% change April 2004 to October 2004	3.7	3.4	3.4
% change April 2003 to April 2004	11.0	13.8	12.6
% change October 2003 to October 2004	14.3	14.2	12.8
% change April 2003 to October 2004	15.1	17.8	16.5
PPM	low	medium	high
April 2003	184	344	458
October 2003	184	344	458
April 2004	198	363	481
October 2004	204	375	497
% change April 2003 to October 2003	0.0	0.0	0.0
% change October 2003 to April 2004	7.7	5.7	5.2
% change April 2004 to October 2004	2.9	3.2	3.3
% change April 2003 to April 2004	7.7	5.7	5.2
% change October 2003 to October 2004	10.9	9.1	8.7
% change April 2003 to October 2004	10.9	9.1	8.7

Source data: TheEnergyShop.com

Table 1.9

NPOWER AVERAGE ANNUAL GAS BILL BY PAYMENT METHOD

SC	low	medium	high
April 2003	179	324	428
October 2003	179	324	428
April 2004	196	341	444
October 2004	220	383	499
% change April 2003 to October 2003	0.0	0.0	0.0
% change October 2003 to April 2004	9.4	5.2	4.0
% change April 2004 to October 2004	12.4	12.4	12.4
% change April 2003 to April 2004	9.4	5.2	4.0
% change October 2003 to October 2004	23.0	18.2	16.8
% change April 2003 to October 2004	23.0	18.2	16.8
DD	low	medium	high
April 2003	169	324	428
October 2003	169	324	428
April 2004	186	341	444
October 2004	210	383	499
% change April 2003 to October 2003	0.0	0.0	0.0
% change October 2003 to April 2004	10.0	5.2	4.0
% change April 2004 to October 2004	13.1	12.4	12.4
% change April 2003 to April 2004	10.0	5.2	4.0
% change October 2003 to October 2004	24.4	18.2	16.8
% change April 2003 to October 2004	24.4	18.2	16.8
PPM	low	medium	high
April 2003	196	368	490
October 2003	196	368	490
April 2004	213	385	507
October 2004	237	425	559
% change April 2003 to October 2003	0.0	0.0	0.0
% change October 2003 to April 2004	8.6	4.6	3.5
% change April 2004 to October 2004	11.1	10.5	10.3
% change April 2003 to April 2004	8.6	4.6	3.5
% change October 2003 to October 2004	20.6	15.6	14.2
% change April 2003 to October 2004	20.6	15.6	14.2

Source data: TheEnergyShop.com.

Table 1.11

POWERGEN AVERAGE ANNUAL GAS BILL BY PAYMENT METHOD

SC	low	medium	high
April 2003	164	296	390
October 2003	173	314	416
April 2004	181	330	436
October 2004	175	340	457
% change April 2003 to October 2003	5.6	6.3	6.5
% change October 2003 to April 2004	4.9	4.9	4.9
% change April 2004 to October 2004	-3.4	3.0	4.9
% change April 2003 to April 2004	10.7	11.5	11.7
% change October 2003 to October 2004	1.3	8.0	10.0
% change April 2003 to October 2004	6.9	14.8	17.2
DD	low	medium	high
April 2003	154	296	390
October 2003	163	314	416
April 2004	171	329	435
October 2004	170	329	443
% change April 2003 to October 2003	5.9	6.3	6.5
% change October 2003 to April 2004	4.8	4.6	4.6
% change April 2004 to October 2004	-0.5	0.2	2.1
% change April 2003 to April 2004	11.1	11.2	11.4
% change October 2003 to October 2004	4.3	4.8	6.7
% change April 2003 to October 2004	10.4	11.4	13.7
PPM	low	medium	high
April 2003	191	352	467
October 2003	191	352	467
April 2004	191	352	467
October 2004	203	374	496
% change April 2003 to October 2003	0.0	0.0	0.0
% change October 2003 to April 2004	0.0	0.0	0.0
% change April 2004 to October 2004	5.8	6.1	6.2
% change April 2003 to April 2004	0.0	0.0	0.0
% change October 2003 to October 2004	5.8	6.1	6.2
% change April 2003 to October 2004	5.8	6.1	6.2

Source data: TheEnergyShop.com

NB: These prices do not reflect the Powergen price increases of 9.6% for gas effective from 1 November 2004.

Table 1.13

SCOTTISH POWER AVERAGE ANNUAL GAS BILL BY PAYMENT METHOD

SC	low	medium	high
April 2003	175	309	405
October 2003	182	322	422
April 2004	187	334	438
October 2004	189	337	443
% change April 2003 to October 2003	3.5	4.0	4.2
% change October 2003 to April 2004	3.1	3.6	3.8
% change April 2004 to October 2004	0.8	1.0	1.0
% change April 2003 to April 2004	6.7	7.8	8.2
% change October 2003 to October 2004	4.0	4.6	4.8
% change April 2003 to October 2004	7.6	8.9	9.2
DD	low	medium	high
April 2003	159	291	383
October 2003	162	300	395
April 2004	165	307	405
October 2004	172	320	422
% change April 2003 to October 2003	1.7	3.0	3.1
% change October 2003 to April 2004	2.1	2.3	2.4
% change April 2004 to October 2004	3.8	4.2	4.4
% change April 2003 to April 2004	3.8	5.4	5.6
% change October 2003 to October 2004	6.0	6.7	6.9
% change April 2003 to October 2004	7.8	9.9	10.2
PPM	low	medium	high
April 2003	178	327	433
October 2003	178	327	434
April 2004	189	349	463
October 2004	189	349	463
% change April 2003 to October 2003	0.1	0.0	0.0
% change October 2003 to April 2004	5.9	6.6	6.8
% change April 2004 to October 2004	0.0	0.0	0.0
% change April 2003 to April 2004	6.0	6.6	6.8
% change October 2003 to October 2004	5.9	6.6	6.8
% change April 2003 to October 2004	6.0	6.6	6.8

Source data: TheEnergyShop.com

Table 1.15

SSE AVERAGE ANNUAL GAS BILL BY PAYMENT METHOD

SC	low	medium	high
April 2003	171	322	430
October 2003	176	331	441
April 2004	183	345	460
October 2004	191	359	480
% change April 2003 to October 2003	2.9	2.7	2.7
% change October 2003 to April 2004	4.3	4.3	4.4
% change April 2004 to October 2004	4.3	4.2	4.2
% change April 2003 to April 2004	7.3	7.2	7.1
% change October 2003 to October 2004	8.8	8.7	8.7
% change April 2003 to October 2004	11.9	11.7	11.6
DD	low	medium	high
April 2003	161	303	404
October 2003	165	311	415
April 2004	172	324	433
October 2004	180	338	451
% change April 2003 to October 2003	2.9	2.7	2.7
% change October 2003 to April 2004	4.3	4.3	4.3
% change April 2004 to October 2004	4.3	4.2	4.2
% change April 2003 to April 2004	7.3	7.2	7.1
% change October 2003 to October 2004	8.8	8.7	8.7
% change April 2003 to October 2004	11.9	11.7	11.6
PPM	low	medium	high
April 2003	170	328	440
October 2003	172	332	446
April 2004	172	332	446
October 2004	189	347	461
% change April 2003 to October 2003	1.2	1.3	1.3
% change October 2003 to April 2004	0.0	0.0	0.0
% change April 2004 to October 2004	10.0	4.7	3.2
% change April 2003 to April 2004	1.2	1.3	1.3
% change October 2003 to October 2004	10.0	4.7	3.2
% change April 2003 to October 2004	11.3	6.0	4.5

Source data: TheEnergyShop.com

Table 1.17

SUMMARY OF PRICE CHANGES 2003

		Percentage change
Supplier	Effective date	Gas	Electricity
British Gas	14 Apr	2.5	2.5
EDF	01 May	4	1.5
npower	01 Apr	4.3	—
Powergen	0 May	6.2	—
Scottish Power	0 Apr	—	3.75
SSE	01 Jul	2.9	—
SSE	01 Oct	—	1.5

Table 1.18

SUMMARY OF PRICE CHANGES 2004

		Percentage change
Supplier	Effective date	Gas	Electricity
Powergen	05 Jan	4.9	6.9
British Gas	10 Jan	5.9	5.9
npower	01 Feb	5.2	—
SSE	01 Feb	4.9 (New)	—
EDF	01 Mar	4.6	6.7
Scottish Power	01 Mar	5	5
npower	01 Apr	—	5.8
Powergen	01 Jul	3.1	—
		4.0 (Post Feb signup)
		9.0 (Pre-Feb signup)	2.9-3.7 (In area)
SSE	01 Jul	8.9 (PPM)	3.6-8.8 (Out of area)
EDF	13 Sep	3.5	3.8
British Gas	20 Sep	12.4	9.4
npower	01 Oct	11.8	7.6
			8 (In area)
Scottish Power	04 Oct	11.8	9 (Out of area)
			8.9 (SC/DD)
Powergen	01 Nov	9.6	6.4 (PPM)

Table 1.19

CUMULATIVE PRICE CHANGES WEIGHTED BY MARKET SHARE 2003

	Percentage
Gas	3.0
Electricity	1.6

Table 1.20

CUMULATIVE PRICE CHANGES WEIGHTED BY MARKET SHARE 2004

	Percentage
Gas	17.6
Electricity	12.9

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Prepared 1 June 2005