Back to Rates Page

 

Electricity Market Index

Every 15 minutes of every day of the year Electric Reliability Council of Texas (ERCOT) purchases electricity at different prices for the four ERCOT designated zones in the State of Texas. These prices are called the Market Clearing Price for Energy (MCPE). These historical prices are posted on the ERCOT website at:

http://www.ercot.com/mktinfo/services/bal/index

You can track the real time daily ERCOT MCPE zonal energy costs by visiting the following ERCOT website. You will note that the prices on this website are in dollars per Megawatt hour. To convert the price to cents per kWh simply divide the dollar amount by 1000.

http://mospublic.ercot.com/ercot/jsp/balancing_services_mcp.jsp

 

12 Month Historical Average of the
ERCOT Market Clearing Price for Energy (MCPE)
Date   North   South   West   Houston    
7-Mar-10   $0.03310   $0.03298   $0.03110   $0.03304
6-Mar-10   $0.03264   $0.03250   $0.03005   $0.03257
5-Mar-10   $0.03205   $0.03052   $0.00612   $0.03131
4-Mar-10   $0.02590   $0.02478   $0.00568   $0.02536
3-Mar-10   $0.03752   $0.03745   $0.03634   $0.03748
2-Mar-10   $0.05347   $0.05347   $0.05347   $0.05347
1-Mar-10   $0.03008   $0.02951   $0.02182   $0.02981
28-Feb-10   $0.02828   $0.02667   $0.01178   $0.02748
27-Feb-10   $0.03989   $0.03975   $0.03780   $0.03982
26-Feb-10   $0.03169   $0.03162   $0.03054   $0.03165
25-Feb-10   $0.03188   $0.03093   $0.01829   $0.03141
24-Feb-10   $0.03124   $0.03082   $0.02618   $0.03103
23-Feb-10   $0.05682   $0.05682   $0.05682   $0.05682
22-Feb-10   $0.03393   $0.03393   $0.03393   $0.03393
21-Feb-10   $0.02287   $0.02275   $0.02096   $0.02281
20-Feb-10   $0.02446   $0.02404   $0.01911   $0.02425
19-Feb-10   $0.03333   $0.03260   $0.02417   $0.03297
18-Feb-10   $0.03329   $0.03221   $0.01718   $0.03275
17-Feb-10   $0.04652   $0.04626   $0.04267   $0.04639
16-Feb-10   $0.07712   $0.07712   $0.07712   $0.07712
15-Feb-10   $0.07414   $0.07414   $0.07414   $0.07414
14-Feb-10   $0.03828   $0.03746   $0.03086   $0.03787
13-Feb-10   $0.05534   $0.05531   $0.05490   $0.05533
12-Feb-10   $0.05222   $0.05222   $0.05222   $0.05222
11-Feb-10   $0.03680   $0.03680   $0.03680   $0.03680
10-Feb-10   $0.03337   $0.03337   $0.03337   $0.03337
9-Feb-10   $0.03854   $0.03854   $0.03854   $0.03854
8-Feb-10   $0.04549   $0.04549   $0.04549   $0.04549
7-Feb-10   $0.05785   $0.05785   $0.05785   $0.05785
6-Feb-10   $0.04661   $0.04661   $0.04661   $0.04661
5-Feb-10   $0.03500   $0.03500   $0.03500   $0.03500
4-Feb-10   $0.04788   $0.04788   $0.04788   $0.04788
3-Feb-10   $0.10369   $0.10285   $0.04558   $0.10328
2-Feb-10   $0.04317   $0.04317   $0.04317   $0.04317
1-Feb-10   $0.06573   $0.06573   $0.06573   $0.06573
31-Jan-10   $0.03879   $0.03879   $0.03879   $0.03879
30-Jan-10   $0.03807   $0.03807   $0.03807   $0.03807
29-Jan-10   $0.03095   $0.03095   $0.03095   $0.03095
28-Jan-10   $0.03771   $0.03760   $0.03599   $0.03766
27-Jan-10   $0.03258   $0.03175   $0.02383   $0.03218
26-Jan-10   $0.05241   $0.05192   $0.04762   $0.05218
25-Jan-10   $0.03125   $0.03125   $0.03125   $0.03125
24-Jan-10   $0.02443   $0.02434   $0.02296   $0.02439
23-Jan-10   $0.02196   $0.02126   $0.01094   $0.02163
22-Jan-10   $0.02984   $0.02984   $0.02984   $0.02984
21-Jan-10   $0.03190   $0.03190   $0.03190   $0.03190
20-Jan-10   $0.03063   $0.03063   $0.03063   $0.03063
19-Jan-10   $0.03557   $0.03557   $0.03557   $0.03557
18-Jan-10   $0.03240   $0.03237   $0.03218   $0.03238
17-Jan-10   $0.03793   $0.03732   $0.03209   $0.03764
16-Jan-10   $0.05795   $0.05795   $0.05795   $0.05795
15-Jan-10   $0.05623   $0.05623   $0.05623   $0.05623
14-Jan-10   $0.03989   $0.03939   $0.03440   $0.03966
13-Jan-10   $0.03977   $0.03866   $0.02652   $0.03924
12-Jan-10   $0.03745   $0.03745   $0.03745   $0.03745
11-Jan-10   $0.03681   $0.03807   $0.03691   $0.03866
10-Jan-10   $0.04235   $0.04202   $0.03734   $0.04219
9-Jan-10   $0.06094   $0.08507   $0.06282   $0.07453
8-Jan-10   $0.06614   $0.06614   $0.06614   $0.06614
7-Jan-10   $0.04046   $0.04036   $0.03916   $0.04041
6-Jan-10   $0.03569   $0.03526   $0.02949   $0.03548
5-Jan-10   $0.03680   $0.03664   $0.03421   $0.03672
4-Jan-10   $0.05165   $0.05165   $0.05165   $0.05165
3-Jan-10   $0.06419   $0.06419   $0.06419   $0.06419
2-Jan-10   $0.05334   $0.05334   $0.05334   $0.05334
1-Jan-10   $0.03945   $0.03945   $0.03945   $0.03945
31-Dec-09   $0.04323   $0.04278   $0.03927   $0.04295
30-Dec-09   $0.03840   $0.03780   $0.03313   $0.03803
29-Dec-09   $0.03393   $0.03393   $0.03393   $0.03393
28-Dec-09   $0.03471   $0.03471   $0.03471   $0.03471
27-Dec-09   $0.03241   $0.03241   $0.03241   $0.03241
26-Dec-09   $0.03328   $0.03328   $0.03328   $0.03328
25-Dec-09   $0.04215   $0.04215   $0.04215   $0.04215
24-Dec-09   $0.02791   $0.02752   $0.02390   $0.02767
23-Dec-09   $0.02747   $0.02719   $0.02456   $0.02730
22-Dec-09   $0.02603   $0.02582   $0.02398   $0.02590
21-Dec-09   $0.02160   $0.02104   $0.01779   $0.02125
20-Dec-09   $0.03380   $0.03380   $0.03380   $0.03380
19-Dec-09   $0.04721   $0.04721   $0.04721   $0.04721
18-Dec-09   $0.04036   $0.04036   $0.04036   $0.04036
17-Dec-09   $0.03730   $0.03730   $0.03730   $0.03730
16-Dec-09   $0.04665   $0.04665   $0.04665   $0.04665
15-Dec-09   $0.03050   $0.03050   $0.03050   $0.03050
14-Dec-09   $0.03524   $0.03502   $0.03305   $0.03510
13-Dec-09   $0.03924   $0.03721   $0.02348   $0.03798
12-Dec-09   $0.05838   $0.05838   $0.05838   $0.05838
11-Dec-09   $0.03793   $0.03793   $0.03793   $0.03793
10-Dec-09   $0.05453   $0.05453   $0.05453   $0.05453
9-Dec-09   $0.06426   $0.05927   $0.06350   $0.06089
8-Dec-09   $0.05378   $0.04552   $0.05188   $0.04932
7-Dec-09   $0.06320   $0.06318   $0.06320   $0.06319
6-Dec-09   $0.03285   $0.03285   $0.03285   $0.03285
5-Dec-09   $0.03129   $0.03170   $0.03132   $0.03151
4-Dec-09   $0.03470   $0.03470   $0.03470   $0.03470
3-Dec-09   $0.03546   $0.03546   $0.03546   $0.03546
2-Dec-09   $0.03376   $0.03376   $0.03376   $0.03376
1-Dec-09   $0.05647   $0.05647   $0.05647   $0.05647
30-Nov-09   $0.03363   $0.03363   $0.03363   $0.03363
29-Nov-09   $0.01929   $0.01929   $0.01929   $0.01929
28-Nov-09   $0.01326   $0.01326   $0.01326   $0.01326
27-Nov-09   $0.01464   $0.01464   $0.01464   $0.01464
26-Nov-09   $0.02042   $0.02042   $0.02042   $0.02042
25-Nov-09   $0.01830   $0.01830   $0.01830   $0.01830
24-Nov-09   $0.03307   $0.03307   $0.03307   $0.03307
23-Nov-09   $0.02091   $0.02091   $0.02091   $0.02091
22-Nov-09   $0.02942   $0.02942   $0.02942   $0.02942
21-Nov-09   $0.02656   $0.02656   $0.02656   $0.02656
20-Nov-09   $0.02363   $0.02363   $0.02363   $0.02363
19-Nov-09   $0.02646   $0.02646   $0.02646   $0.02646
18-Nov-09   $0.02866   $0.02866   $0.02866   $0.02866
17-Nov-09   $0.02771   $0.02771   $0.02771   $0.02771
16-Nov-09   $0.01834   $0.01830   $0.01789   $0.01832
15-Nov-09   $0.02070   $0.02143   $0.02061   $0.02139
14-Nov-09   $0.02021   $0.02021   $0.02021   $0.02021
13-Nov-09   $0.01890   $0.01890   $0.01890   $0.01890
12-Nov-09   $0.01818   $0.02009   $0.01831   $0.01920
11-Nov-09   $0.02687   $0.02687   $0.02687   $0.02687
10-Nov-09   $0.03152   $0.03152   $0.03152   $0.03152
9-Nov-09   $0.05799   $0.05799   $0.05799   $0.05799
8-Nov-09   $0.03301   $0.03301   $0.03301   $0.03301
7-Nov-09   $0.02766   $0.02766   $0.02766   $0.02766
6-Nov-09   $0.02325   $0.02325   $0.02325   $0.02325
5-Nov-09   $0.02723   $0.02723   $0.02723   $0.02723
4-Nov-09   $0.04318   $0.04318   $0.04318   $0.04318
3-Nov-09   $0.03484   $0.03484   $0.03484   $0.03484
2-Nov-09   $0.03592   $0.03592   $0.03592   $0.03592
1-Nov-09   $0.02458   $0.02458   $0.02458   $0.02458
31-Oct-09   $0.03283   $0.03283   $0.03283   $0.03283
30-Oct-09   $0.02421   $0.02421   $0.02421   $0.02421
29-Oct-09   $0.03296   $0.03248   $0.02900   $0.03268
28-Oct-09   $0.02658   $0.02403   $0.00440   $0.02508
27-Oct-09   $0.02572   $0.02462   $0.01713   $0.02507
26-Oct-09   $0.03150   $0.03150   $0.03150   $0.03150
25-Oct-09   $0.03563   $0.03563   $0.03563   $0.03563
24-Oct-09   $0.02337   $0.02309   $0.02086   $0.02320
23-Oct-09   $0.03004   $0.03004   $0.03004   $0.03004
22-Oct-09   $0.02744   $0.02744   $0.02744   $0.02744
21-Oct-09   $0.04110   $0.04110   $0.04110   $0.04110
20-Oct-09   $0.02912   $0.02912   $0.02912   $0.02912
19-Oct-09   $0.02224   $0.02201   $0.02036   $0.02210
18-Oct-09   $0.01895   $0.01891   $0.01861   $0.01892
17-Oct-09   $0.02831   $0.02831   $0.02831   $0.02831
16-Oct-09   $0.02748   $0.02755   $0.02749   $0.02757
15-Oct-09   $0.03117   $0.04777   $0.03269   $0.05374
14-Oct-09   $0.07375   $0.07375   $0.07375   $0.07375
13-Oct-09   $0.03013   $0.03013   $0.03013   $0.03013
12-Oct-09   $0.03301   $0.03301   $0.03301   $0.03301
11-Oct-09   $0.02878   $0.02878   $0.02878   $0.02878
10-Oct-09   $0.02105   $0.02105   $0.02105   $0.02105
9-Oct-09   $0.02990   $0.02990   $0.02990   $0.02990
8-Oct-09   $0.03559   $0.03559   $0.03559   $0.03559
7-Oct-09   $0.03220   $0.03318   $0.03229   $0.03353
6-Oct-09   $0.02431   $0.02418   $0.02033   $0.02452
5-Oct-09   $0.01610   $0.01790   $0.01627   $0.01855
4-Oct-09   $0.01901   $0.01906   $0.01902   $0.01908
3-Oct-09   $0.01458   $0.01458   $0.01458   $0.01458
2-Oct-09   $0.01933   $0.01933   $0.01933   $0.01933
1-Oct-09   $0.02505   $0.02577   $0.02512   $0.02602
30-Sep-09   $0.02352   $0.02352   $0.02352   $0.02352
29-Sep-09   $0.02167   $0.02167   $0.02167   $0.02167
28-Sep-09   $0.01944   $0.02274   $0.01975   $0.02407
27-Sep-09   $0.02580   $0.07837   $0.03060   $0.09958
26-Sep-09   $0.02383   $0.02383   $0.02383   $0.02383
25-Sep-09   $0.02375   $0.02375   $0.02375   $0.02375
24-Sep-09   $0.01817   $0.01817   $0.01817   $0.01817
23-Sep-09   $0.01780   $0.01780   $0.01780   $0.01780
22-Sep-09   $0.02113   $0.04070   $0.02254   $0.03166
21-Sep-09   $0.06159   $0.08062   $0.05405   $0.07308
20-Sep-09   $0.04808   $0.04801   $0.01875   $0.05060
19-Sep-09   $0.02722   $0.02722   $0.02722   $0.02722
18-Sep-09   $0.02568   $0.02605   $0.02572   $0.02619
17-Sep-09   $0.02540   $0.02496   $0.02141   $0.02515
16-Sep-09   $0.02431   $0.02440   $0.02432   $0.02444
15-Sep-09   $0.02443   $0.02443   $0.02443   $0.02443
14-Sep-09   $0.02099   $0.02208   $0.02109   $0.02252
13-Sep-09   $0.01666   $0.01810   $0.01679   $0.01868
12-Sep-09   $0.01737   $0.01737   $0.01737   $0.01737
11-Sep-09   $0.01923   $0.01923   $0.01923   $0.01923
10-Sep-09   $0.02423   $0.02415   $0.02422   $0.02419
9-Sep-09   $0.02519   $0.02519   $0.02519   $0.02519
8-Sep-09   $0.02038   $0.02004   $0.01821   $0.02019
7-Sep-09   $0.03306   $0.03306   $0.03306   $0.03306
6-Sep-09   $0.03596   $0.03596   $0.03596   $0.03596
5-Sep-09   $0.02095   $0.02095   $0.02095   $0.02095
4-Sep-09   $0.01772   $0.01772   $0.01772   $0.01772
3-Sep-09   $0.02557   $0.02557   $0.02557   $0.02557
2-Sep-09   $0.02483   $0.02464   $0.02284   $0.02472
1-Sep-09   $0.01920   $0.01920   $0.01920   $0.01920
31-Aug-09   $0.01886   $0.01886   $0.01886   $0.01886
30-Aug-09   $0.01790   $0.01790   $0.01790   $0.01790
29-Aug-09   $0.02065   $0.02065   $0.02065   $0.02065
28-Aug-09   $0.02289   $0.02289   $0.02289   $0.02289
27-Aug-09   $0.02420   $0.02420   $0.02420   $0.02420
26-Aug-09   $0.02556   $0.02556   $0.02556   $0.02556
25-Aug-09   $0.02562   $0.02562   $0.02562   $0.02562
24-Aug-09   $0.02406   $0.02401   $0.02353   $0.02403
23-Aug-09   $0.03408   $0.03400   $0.03358   $0.03403
22-Aug-09   $0.02538   $0.02538   $0.02538   $0.02538
21-Aug-09   $0.02550   $0.02585   $0.02553   $0.02604
20-Aug-09   $0.04840   $0.04731   $0.04146   $0.04776
19-Aug-09   $0.02751   $0.02690   $0.02275   $0.02715
18-Aug-09   $0.02470   $0.02470   $0.02470   $0.02470
17-Aug-09   $0.03086   $0.03086   $0.03086   $0.03086
16-Aug-09   $0.02813   $0.02813   $0.02813   $0.02813
15-Aug-09   $0.03638   $0.03635   $0.03578   $0.03638
14-Aug-09   $0.02639   $0.03821   $0.02752   $0.04459
13-Aug-09   $0.02702   $0.02702   $0.02702   $0.02702
12-Aug-09   $0.03070   $0.03070   $0.03070   $0.03070
11-Aug-09   $0.03030   $0.03003   $0.02790   $0.03014
10-Aug-09   $0.03531   $0.03509   $0.03317   $0.03518
9-Aug-09   $0.02887   $0.02837   $0.02349   $0.02858
8-Aug-09   $0.03283   $0.03182   $0.02251   $0.03224
7-Aug-09   $0.03467   $0.03406   $0.02815   $0.03432
6-Aug-09   $0.03340   $0.03340   $0.03340   $0.03340
5-Aug-09   $0.06700   $0.06700   $0.06700   $0.06700
4-Aug-09   $0.03768   $0.03738   $0.03545   $0.03751
3-Aug-09   $0.03014   $0.03014   $0.03014   $0.03014
2-Aug-09   $0.02625   $0.02625   $0.02625   $0.02625
1-Aug-09   $0.02570   $0.02615   $0.02574   $0.02639
31-Jul-09   $0.02427   $0.02438   $0.02428   $0.02444