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distribution_loss_factor_methodology

By Audrey Hill,2015-03-24 12:15
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distribution_loss_factor_methodology

Distribution Loss Factor Methodology

    *Including Town, Zip, and Loss Factor

    The Zones are consistent with the Texas state plane grid coordinate system and are defined as follows:

    • Zone 1 & 2 – North TX, Central TX and Lewisville (North Dallas) • Zone 6 Gulf Coast

    • Zone 8 – West Texas

    Customers were assigned to Urban or Rural status as follows: • Zone 1& 2 - Lewisville Urban, all others Rural

    • Zone 6 - Alvin, Dickinson, Friendswood, La Marque, League City and Texas City are classified as Urban. All other areas are classified as Rural • Zone 8 - All areas are classified as Rural.

    Assignment was based on estimated losses per circuit mile using sample distribution models explained elsewhere in this summary.

    Urban circuits exhibit higher losses per mile due to higher load density. The results were combined to estimate the total system losses and derive the loss factors required by ERCOT.

    Exhibit 1-1 presents a summary of the calculations and the resulting loss factors are summarized in Table 1-1.

    TABLE 1-1

    TNMP Distribution Loss Factors

     Zone 1 & 2 Zone 6 Zone 8

    Factor Rural Urban Rural Urban Rural

    ID A B C D E

    AAL 101.296 102.726 81.826 276.439 45.650

    ADLF 7.85% 4.47% 3.31% 3.69% 4.19%

    K 31.59% 40.94% 41.69% 35.77% 35.56%

    The table below provides a breakdown of all Town-Codes, Zip Codes and Loss Factors in TNMP's system.

ALVIN 77511 D TX 631

    ALVIN 77512 D TX 631

    ALVIN 77539 D TX 631

    ANGLETON 77515 C TX 601

    ARCHER COUNTY 76370 A TX 422

    ARCHER COUNTY 76374 A TX 422

    AUBREY 76227 A TX 251

    BAILEY 75413 A TX 261

    BAILEY'S PRAIRIE 77515 C TX 603

    BARSTOW 79719 E TX 831

    BELLS 75414 A TX 281 BLOSSOM 75416 A TX 207 BLOSSOM 75417 A TX 207 BLOSSOM 75436 A TX 207 BLUE RIDGE 75424 A TX 271 BLUM 76627 A TX 171 BOGATA 75417 A TX 201 BOGATA 75487 A TX 201 BOSQUE COUNTY 76457 A TX 144 BOSQUE COUNTY 76629 A TX 102 BOSQUE COUNTY 76634 A TX 102 BOSQUE COUNTY 76634 A TX 172 BOSQUE COUNTY 76649 A TX 144 BOSQUE COUNTY 76652 A TX 152 BOSQUE COUNTY 76665 A TX 152 BOSQUE COUNTY 76671 A TX 102 BOSQUE COUNTY 76671 A TX 152 BOSQUE COUNTY 76671 A TX 172 BOSQUE COUNTY 76689 A TX 102 BOSQUE COUNTY 76689 A TX 166 BOSQUE COUNTY 76690 A TX 152 BRAZORIA 77422 C TX 621 BRAZORIA 77480 C TX 621 BRAZORIA 77486 C TX 621 BRAZORIA COUNTY 77422 C TX 602 BRAZORIA COUNTY 77422 C TX 612 BRAZORIA COUNTY 77422 C TX 622 BRAZORIA COUNTY 77422 C TX 624 BRAZORIA COUNTY 77463 C TX 612 BRAZORIA COUNTY 77480 C TX 612 BRAZORIA COUNTY 77486 C TX 622 BRAZORIA COUNTY 77486 C TX 624 BRAZORIA COUNTY 77511 D TX 652 BRAZORIA COUNTY 77512 D TX 652 BRAZORIA COUNTY 77515 C TX 602 BRAZORIA COUNTY 77546 D TX 652 BRAZORIA COUNTY 77581 D TX 652 BRAZORIA COUNTY 77584 D TX 652 BRYSON 76427 A TX 401 BYERS 76305 A TX 237 BYERS 76357 A TX 237 BYERS 76377 A TX 237 CELESTE 75423 A TX 263 CLAY COUNTY 76255 A TX 234 CLAY COUNTY 76305 A TX 234 CLAY COUNTY 76357 A TX 234 CLAY COUNTY 76365 A TX 234

    CLAY COUNTY 76377 A TX 234 CLIFTON 76634 A TX 101 COLLIN COUNTY 75003 A TX 286 COLLIN COUNTY 75407 A TX 274 COLLIN COUNTY 75409 A TX 286 COLLIN COUNTY 75424 A TX 274 COLLIN COUNTY 75424 A TX 286 COLLIN COUNTY 75442 A TX 274 COLLIN COUNTY 75485 A TX 286 COLLIN COUNTY 75491 A TX 286 COMANCHE COUNTY 76442 A TX 132 COMANCHE COUNTY 76455 A TX 132 COOKE COUNTY 76255 A TX 236 COOKE COUNTY 76258 A TX 252 COPPELL (DENTON COUNTY) 75019 B TX 213 CORYELL COUNTY 76528 A TX 112 CORYELL COUNTY 76528 A TX 164 CORYELL COUNTY 76538 A TX 138 CORYELL COUNTY 76638 A TX 164 CORYELL COUNTY 76689 A TX 164 COVINGTON 76636 A TX 177 CRAWFORD 76638 A TX 161 CROSS ROAD 76227 A TX 259 CROSS ROAD 76258 A TX 259 DEAN 76301 A TX 239 DEAN 76305 A TX 239 DEAN 76377 A TX 239 DENTON COUNTY 75057 B TX 211 DENTON COUNTY 76205 A TX 254 DENTON COUNTY 76209 A TX 254 DENTON COUNTY 76227 A TX 254 DENTON COUNTY 76258 A TX 254 DEPORT (LAMAR CO) 75417 A TX 203 DEPORT (LAMAR CO) 75435 A TX 203 DEPORT (RED RIVER CO) 75435 A TX 200 DETROIT 75416 A TX 209 DETROIT 75436 A TX 209 DICKINSON 77511 D TX 641 DICKINSON 77539 D TX 641 EMORY 75440 A TX 221 ERATH COUNTY 76401 A TX 126 ERATH COUNTY 76433 A TX 126 ERATH COUNTY 76436 A TX 146 ERATH COUNTY 76453 A TX 434 ERATH COUNTY 76457 A TX 146 ERATH COUNTY 76463 A TX 434 FANNIN COUNTY 75413 A TX 282

    FANNIN COUNTY 75414 A TX 282 FANNIN COUNTY 75423 A TX 282 FANNIN COUNTY 75452 A TX 282 FANNIN COUNTY 75475 A TX 282 FANNIN COUNTY 75490 A TX 282 FANNIN COUNTY 75491 A TX 282 FARMERSVILLE 75442 A TX 277 FORT STOCKTON 79735 E TX 811 FRANKLIN COUNTY 75417 A TX 208 FRANKLIN COUNTY 75487 A TX 208 FRIENDSWOOD 77511 D TX 651 FRIENDSWOOD 77539 D TX 651 FRIENDSWOOD 77546 D TX 651 FRIENDSWOOD 77573 D TX 651 FRIENDSWOOD 77588 D TX 651 GALVESTON COUNTY 77511 D TX 634 GALVESTON COUNTY 77539 D TX 642 GALVESTON COUNTY 77550 D TX 642 GALVESTON COUNTY 77573 D TX 642 GALVESTON COUNTY 77590 D TX 642 GATESVILLE 76528 A TX 111 GLEN ROSE 76043 A TX 121 GORDON 76453 A TX 431 GRAYSON COUNTY 75414 A TX 288 GRAYSON COUNTY 75489 A TX 288 GRAYSON COUNTY 75491 A TX 288 GRAYSON COUNTY 76258 A TX 256 GRAYSON COUNTY 76271 A TX 256 GUSTINE 76455 A TX 131 HAMILTON 76531 A TX 133 HAMILTON COUNTY 76436 A TX 142 HAMILTON COUNTY 76457 A TX 142 HAMILTON COUNTY 76531 A TX 134 HICO 76457 A TX 141 HIGHLAND VILLAGE 75067 B TX 212 HIGHLAND VILLAGE 75077 B TX 212 HILL COUNTY 76055 A TX 176 HILL COUNTY 76093 A TX 176 HILL COUNTY 76627 A TX 176 HILL COUNTY 76634 A TX 176 HILL COUNTY 76636 A TX 176 HILL COUNTY 76692 A TX 176 HILLCREST VILLAGE 77511 D TX 633 HOLIDAY LAKES 77515 C TX 605 HOOD COUNTY 76048 A TX 124 HOOD COUNTY 76476 A TX 124 HUNT COUNTY 75423 A TX 264

    HUNT COUNTY 75440 A TX 222 HUNT COUNTY 75452 A TX 264 HUNT COUNTY 75453 A TX 222 IREDELL 76649 A TX 143 JACK COUNTY 76427 A TX 402 JACK COUNTY 76450 A TX 402 JACK COUNTY 76459 A TX 402 JOHNSON COUNTY 76050 A TX 174 JOHNSON COUNTY 76093 A TX 174 KERMIT 79745 E TX 821 KRUGERVILLE 76227 A TX 257 KRUGERVILLE 76258 A TX 257 LA MARQUE 77568 D TX 661 LA MARQUE 77591 D TX 661 LAMAR COUNTY 75416 A TX 204 LAMAR COUNTY 75417 A TX 204 LAMAR COUNTY 75434 A TX 204 LAMAR COUNTY 75435 A TX 204 LAMAR COUNTY 75436 A TX 204 LAMAR COUNTY 75462 A TX 204 LAMAR COUNTY 75468 A TX 204 LEAGUE CITY 77511 D TX 655 LEAGUE CITY 77539 D TX 655 LEAGUE CITY 77546 D TX 655 LEAGUE CITY 77565 D TX 655 LEAGUE CITY 77573 D TX 655 LEONARD 75452 A TX 265 LEWISVILLE (DENTON COUNTY) 75028 B TX 210 LEWISVILLE (DENTON COUNTY) 75029 B TX 210 LEWISVILLE (DENTON COUNTY) 75056 B TX 210 LEWISVILLE (DENTON COUNTY) 75057 B TX 210 LEWISVILLE (DENTON COUNTY) 75067 B TX 210 LEWISVILLE (DENTON COUNTY) 75077 B TX 210 LONE OAK 75453 A TX 223 LOWRY CROSSING 75407 A TX 275 MATAGORDA COUNTY 77463 C TX 614 MATAGORDA COUNTY 77480 C TX 614 MCLENNAN COUNTY 76638 A TX 162 MCLENNAN COUNTY 76689 A TX 162 MEGARGEL 76370 A TX 421 MERIDIAN 76652 A TX 151 MERIDIAN 76665 A TX 151 MINGUS 76463 A TX 433 MONTAGUE COUNTY 76251 A TX 232 MONTAGUE COUNTY 76255 A TX 232 MONTAGUE COUNTY 76261 A TX 232 MONTAGUE COUNTY 76265 A TX 232

    MORGAN 76671 A TX 153 NEWCASTLE 76372 A TX 423 NOCONA 76255 A TX 231 NOCONA 76265 A TX 231 OLNEY 76374 A TX 425 PALO PINTO COUNTY 76453 A TX 436 PALO PINTO COUNTY 76472 A TX 436 PALO PINTO COUNTY 76475 A TX 436 PALO PINTO COUNTY 76484 A TX 436 PEARLAND 77546 D TX 653 PEARLAND 77581 D TX 653 PEARLAND 77588 D TX 653 PECOS 79772 E TX 833 PECOS COUNTY 79730 E TX 836 PECOS COUNTY 79735 E TX 812 PECOS COUNTY 79740 E TX 812 PECOS COUNTY 79772 E TX 836 PECOS COUNTY 79848 E TX 844 PETROLIA 76301 A TX 238 PETROLIA 76377 A TX 238 PILOT POINT 76258 A TX 253 POINT 75472 A TX 225 PRINCETON 75407 A TX 273 RAINS COUNTY 75440 A TX 224 RAINS COUNTY 75472 A TX 224 RED RIVER COUNTY 75412 A TX 202 RED RIVER COUNTY 75417 A TX 202 RED RIVER COUNTY 75435 A TX 202 RED RIVER COUNTY 75436 A TX 202 RED RIVER COUNTY 75487 A TX 202 REEVES COUNTY 79730 E TX 834 REEVES COUNTY 79772 E TX 834 REEVES COUNTY 79785 E TX 834 RIO VISTA 76093 A TX 173 SAINT JO 76265 A TX 233 SOMERVELL COUNTY 76043 A TX 122 SOMERVELL COUNTY 76077 A TX 122 SOUTH MOUNTAIN 76528 A TX 113 STEPHENS CO-ELIASVILLE 76481 A TX 412 STRAWN 76475 A TX 435 SWEENY 77480 C TX 611 TALCO 75417 A TX 205 TALCO 75487 A TX 205 TERRELL COUNTY 79848 E TX 842 TEXAS CITY 77539 D TX 647 TEXAS CITY 77539 D TX 671 TEXAS CITY 77590 D TX 647

    TEXAS CITY 77590 D TX 671 TEXAS CITY 77591 D TX 647 TEXAS CITY 77591 D TX 671 TEXAS CITY 77592 D TX 647 TEXAS CITY 77592 D TX 671 TIOGA 76271 A TX 255 TITUS COUNTY 75417 A TX 206 TITUS COUNTY 75487 A TX 206 TOLAR 76476 A TX 123 TOM BEAN 75489 A TX 283 TOYAH 79785 E TX 835 TRENTON 75490 A TX 267 VALLEY MILLES (MCLENNAN CO) 76689 A TX 165 VALLEY MILLS (BOSQUE CO) 76528 A TX 163 VALLEY MILLS (BOSQUE CO) 76689 A TX 163 VAN ZANDT COUNTY 75117 A TX 226 VAN ZANDT COUNTY 75440 A TX 226 WALNUT SPRINGS 76690 A TX 155 WARD COUNTY 79719 E TX 832 WARD COUNTY 79745 E TX 824 WARD COUNTY 79772 E TX 832 WARD COUNTY 79777 E TX 832 WARD COUNTY 79788 E TX 824 WEST COLUMBIA 77486 C TX 623 WESTMINSTER 75096 A TX 285 WESTMINSTER 75409 A TX 285 WESTMINSTER 75485 A TX 285 WHITEWRIGHT (FANNIN CO) 75491 A TX 289 WHITEWRIGHT (GRAYSON CO) 75491 A TX 287 WHITNEY 76692 A TX 175 WICKETT 79788 E TX 823 WINK 79789 E TX 825 WINKLER COUNTY 79745 E TX 822 WINKLER COUNTY 79777 E TX 822 YOUNG CO - ELIASVILLE 76481 A TX 414 YOUNG COUNTY 76372 A TX 426 YOUNG COUNTY 76374 A TX 426 YOUNG COUNTY 76450 A TX 426 YOUNG COUNTY 76460 A TX 426

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