2013 Attachment O True-Up Stakeholder Meeting Ameren Transmission Company of Illinois and Ameren Illinois Company August 22, 2014 AGENDA Main Purpose is to review ATXI and AIC 2013 Transmission Rate Actuals and True-Up Calculations • • • • Timeline ATXI 2013 True Up AIC 2013 True Up 2014 AMIL Pricing Zone NITS Charge There will be a meeting held on October 1 to review the 2015 Transmission Rate calculations. 2 NEW PROTOCOL TIMELINE Proposed Schedule (Forward-Looking) Date June 1 Posting of annual true-up for prior year September 1 Deadline for annual true-up meeting September 1 Posting of net projected revenue requirement for following year October 15 Deadline for annual projected rate meeting November 1 Deadline for joint meeting on regional cost-shared projects March 15 Transmission Owners submit informational filing to the Commission 3 ATXI Revenue Requirement Projected 2013 vs Actual 2013 4 ATXI 2013 TRUE UP Ameren Transmission Company of Illinois Attachment O Revenue Requirement True-Up For the Year Ended 12/31/2013 Attachment O Net Actual Revenue Requirement (Attachment O, Pg 1, Line 7) $ 8,951,929 Net Projected Revenue Requirement (2013 Projected Attachment O, Pg 1, Line 7) $ 7,406,002 Under/(Over) Recovery of Net Revenue Requirement $ 1,545,927 Historic Year Actual Divisor for Pricing Zone (AIC Attachment O, Pg 1, Line 15) Projected Year Divisor for Pricing Zone (AIC 2013 Projected Attachment O, Pg 1, Line 15) Difference between Historic & Projected Yr Divisor Prior Year Projected Annual Cost ($ per kw per yr) Prior Year Under/(Over) Divisor True-up $ $ 7,219,333 7,175,041 44,292 1.03 (45,719) Total Under/(Over) Recovery $ 1,500,209 Monthly Interest Rate (to be updated through July, 2014) Interest For 24 Months $ Total Under/(Over) Recovery Including Interest $ 0.03% 12,530 1,512,738 5 ATXI 2013 TRUE UP ATXI Rate Base Page.Line 2.6 2.12 2.18 Total Gross Plant Total Accum Depreciation TOTAL NET PLANT 2.18a 100% CWIP RECOVERY 2.20 2.21 2.22 2.25 2.26 2.27 2.28 ADJUSTMENTS TO RATE BASE Account No. 282 Account No. 283 Account No. 190 Land Held for Future Use CWC Materials & Supplies Prepayments TOTAL ADJUSTMENTS 2.30 TOTAL RATE BASE 2013 Projection 2013 Actual 63,438,000 65,513,376 2,652,000 2,652,407 60,786,000 62,860,969 Change 2,075,376 407 2,074,969 Percent 3% 0% 3% 33,665,000 30,479,705 -3,185,295 -9% -12,172,000 -8,000 3,984,000 0 115,500 0 0 -8,080,500 -11,913,988 -1,015,112 2,009,733 0 502,111 0 0 -10,417,256 258,012 -1,007,112 -1,974,267 0 386,611 0 0 -2,336,756 -2% 12589% -50% N/A 335% N/A N/A 29% 86,370,500 82,923,418 -3,447,082 -4% 6 ATXI 2013 TRUE UP ATXI Expenses 2013 Projection Page.Line 3.1 3.1a 3.2 3.3 3.4 3.5 3.5a 3.8 O&M Transmission Less LSE Expenses Less Account 565 A&G Less FERC Annual Fees Less EPRI, ect. Plus Trans. Reg. Comm. Exp TOTAL O&M 3.12 3.13 3.16 3.18 3.27 2013 Actual Change Percent 41,000 0 0 883,000 0 0 0 924,000 625,430 0 0 3,391,462 0 4,594 4,594 4,016,892 584,430 0 0 2,508,462 0 4,594 4,594 3,092,892 1425% N/A N/A 284% N/A N/A N/A 335% TOTAL DEPRECIATION 1,006,000 1,005,926 -74 0% TAXES Payroll Property Other Income Taxes TOTAL TAXES 0 0 25,000 4,189,084 4,214,084 0 13,719 23,296 4,004,852 4,041,867 0 13,719 -1,704 -184,232 -172,217 N/A N/A -7% -4% -4% TOTAL EXPENSES 6,144,084 9,064,685 2,920,600 48% 7 ATXI 2013 TRUE UP ATXI Actual Capital Structure Capital Structure - 2013 Projection Page.Line 4.27 4.28 4.29 4.3 Long Term Debt Preferred Stock Common Stock Total $ 39,000,000 0 49,540,000 88,540,000 % 44% 0% 56% 100% Cost Weighted 0.0356 0.0157 0.0000 0.0000 0.1238 0.0693 0.0849 44% 0% 56% 100% Cost Weighted 0.0384 0.0170 0.0000 0.0000 0.1238 0.0688 0.0858 Capital Structure - 2013 Actual Page.Line 4.27 4.28 4.29 4.3 Long Term Debt Preferred Stock Common Stock Total Change in Return $ 35,923,077 0 44,946,030 80,869,107 % 0.0901% 8 ATXI 2013 TRUE UP Total ATXI Revenue Requirement Page.Line 2013 Projection 2013 Actual 86,370,500 82,923,418 8.49% 8.58% 7,336,763 7,118,653 Change -3,447,082 0.09% -218,111 Percent -4% 1% -3% 2.30 4.30 3.28 TOTAL RATE BASE Rate of Return on ACS Return from ACS 2.30a 4.30e 3.28a 100% CWIP RECOVERY Incremental Rate of Return on HCS Incremental Return from HCS 33,665,000 0.00% 1,422 30,479,705 0.04% 10,971 -3,185,295 0.03% 9,548 -9% 752% 671% 3.29 Total Return Total Expenses TOTAL GROSS REV. REQ. 7,338,185 6,144,084 13,482,270 7,129,623 9,064,685 16,194,308 -208,562 2,920,600 2,712,038 -3% 48% 20% 3.30 3.30a 3.31 Less ATT. GG Adjustment Less ATT. MM Adjustment GROSS REV. REQ. UNDER ATT. O 0 5,588,351 7,893,919 0 6,647,570 9,546,738 0 1,059,219 1,652,819 N/A 19% 21% 9 ATXI 2013 TRUE UP ATXI True-up & Net Revenue Requirement Page.Line 1.1 1.6 Gross Revenue Requirement Total Revenue Credits 1.6a 1.6b 1.6c 1.6d 1.6e Historic Year Actual ATRR Projected ATRR from Prior Year Prior Year ATRR True-Up Prior Year Divisor True-Up Interest on Prior Year True-Up 1.7 NET REVENUE REQUIREMENT 2013 Projection 2013 Actual 7,893,919 9,546,738 487,917 594,809 Change 1,652,819 106,892 Percent 21% 22% 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 N/A N/A N/A N/A N/A 7,406,002 8,951,929 1,545,928 21% 10 ATXI 2013 ACTUALS ATXI Attachment MM Calculation - Page 1 (1) Line No. (2) Attachment O Page, Line, Col. Attach O, p 2, line 2 + 18a col 5 (Note A) Attach O, p 2, line 8 col 5 (Note A) Line 1 minus Line 1a (Note B) (3) (4) Transmission Allocator 1 1a 2 Gross Transmission Plant - Total Transmission Accumulated Depreciation Net Transmission Plant - Total 3 3a 3b 3c 3d O&M TRANSMISSION EXPENSE Total O&M Allocated to Transmission Transmission O&M Less: LSE Expenses included in above, if any Less: Account 565 included in above, if any Adjusted Transmission O&M 4 Annual Allocation Factor for Transmission O&M 4a 4b OTHER O&M EXPENSE Other O&M Allocated to Transmission Annual Allocation Factor for Other O&M 5 6 GENERAL AND COMMON (G&C) DEPRECIATION EXPENSE Total G&C Depreciation Expense Annual Allocation Factor for G&C Depreciation Expense 7 8 TAXES OTHER THAN INCOME TAXES Total Other Taxes Annual Allocation Factor for Other Taxes 9 Annual Allocation Factor for Other Expense 10 11 INCOME TAXES Total Income Taxes Annual Allocation Factor for Income Taxes Attach O, p 3, line 27 col 5 (line 10 divided by line 2 col 3) 4,004,852 12 13 RETURN Return on Rate Base (Note I) Annual Allocation Factor for Return on Rate Base Attach O, p 3, line 28 col 5 (line 12 divided by line 2 col 3) 7,118,653 14 Annual Allocation Factor for Return Sum of line 11 and 13 15 HYPOTHETICAL CAPITAL STRUCTURE (HCS) RETURN Annual Allocation Factor HCS Return (Note J) Attach O, p 4, line 30e Attach O, p 3, line 8 col 5 Attach O, p 3, line 1 col 5 Attach O, p 3, line 1a col 5, if any Attach O, p 3, line 2 col 5, if any Line 3a minus Line 3b minus Line 3c (Line 3d divided by line 1a, col 3) Line 3 minus Line 3d Line 4a divided by Line 1, col 3 95,993,081 2,652,407 93,340,674 4,016,892 625,430 625,430 23.58% 23.58% 3,391,462 3.53% 3.53% Attach O, p 3, lines 10 & 11, col 5 (Note H) (line 5 divided by line 1 col 3) 0.00% 0.00% Attach O, p 3, line 20 col 5 (line 7 divided by line 1 col 3) 37,015 0.04% 0.04% 3.57% 3.57% 4.29% 4.29% 7.63% 7.63% Sum of line 4b, 6, and 8 11.92% 0.04% 0.04% 11 ATXI 2013 ACTUALS ATXI Attachment MM Calculation - Page 2 Line No. (1) (2) Project Name MTEP Project Number Multi-Value Projects (MVP) 1a Pana-Sugar Creek 1b Pana-Sugar Creek - Land - No HCS 1c Sidney-Rising 1d Sidney-Rising - Land - No HCS 1e Palmyra-Pawnee 1f Palmyra-Pawnee - Land - No HCS 1g Fargo-Galesburg-Oak Grove 1h Fargo-Galesburg-Oak Grove - Land - No HCS 1i Pawnee-Pana 1j Pawnee-Pana - Land - No HCS 1k Adair-Palmyra 1l Adair-Palmyra - Land - No HCS Line No. 2237 2237 2239 2239 3017 3017 3022 3022 3169 3169 3170 3170 (1) (2) Project Name MTEP Project Number (3) Project Gross Plant (Note C) $ $ $ $ $ $ $ $ $ $ $ $ (4) (5) Project Accumulated Depreciation Transmission O&M Annual Allocation Factor Page 1 line 4 7,603,892 1,353,781 1,394,397 1,097,120 15,833,822 7,790,997 3,559 284,102 2,078,278 2,809,960 1,838,350 763,788 (10) 23.58% 23.58% 23.58% 23.58% 23.58% 23.58% 23.58% 23.58% 23.58% 23.58% 23.58% 23.58% (11) (6) Annual Allocation for Transmission O&M Expense (Col 4 * Col 5) $ $ $ $ $ $ $ $ $ $ $ $ (11a) (7) 2237 2237 2239 2239 3017 3017 $ $ $ $ $ $ - 3.57% 3.57% 3.57% 3.57% 3.57% 3.57% 3.57% 3.57% 3.57% 3.57% 3.57% 3.57% (12) 1g Fargo-Galesburg-Oak Grove 3022 1h 1i 1j 1k 1l Fargo-Galesburg-Oak Grove - Land - No HCS Pawnee-Pana Pawnee-Pana - Land - No HCS Adair-Palmyra Adair-Palmyra - Land - No HCS 3022 3169 3169 3170 3170 7,603,892 1,353,781 1,394,397 1,097,120 15,833,822 7,790,997 11.92% 11.92% 11.92% 11.92% 11.92% 11.92% 0.04% 0.00% 0.04% 0.00% 0.04% 0.00% $ $ $ $ $ $ $ 3,559 11.92% 0.04% $ $ $ $ $ $ 284,102 2,078,278 2,809,960 1,838,350 763,788 11.92% 11.92% 11.92% 11.92% 11.92% 0.00% 0.04% 0.00% 0.04% 0.00% $ $ $ $ $ $271,579.62 $48,351.48 $49,802.12 $39,184.61 $565,518.77 $278,262.26 $127.11 $10,146.96 $74,227.50 $100,360.18 $65,658.27 $27,279.34 (13) 908,900 161,332 166,674 130,745 1,892,632 928,461 Project Depreciation Expense (Note E) (15) (16) Annual Revenue Requirement (Sum Col. 9, 12 & 13) True-Up Adjustment MVP Annual Adjusted Revenue Requirement Sum Col. 14 & 15 (Note G) - $ $ $ $ $ $ 425 $ - $ - $ $ $ $ $ $ $ $ $ $ $271,579.62 $48,351.48 $49,802.12 $39,184.61 $565,518.77 $278,262.26 $127.11 $10,146.96 $74,227.50 $100,360.18 $65,658.27 $27,279.34 (14) $ $ $ $ $ $ 33,857 248,419 334,866 219,740 91,021 (9) Other Expense Annual Annual Allocation Allocation for Annual Expense Factor Other Expense Charge Page 1 line 9 (Col 3 * Col 7) (Col 6 + Col 8) Annual Allocation Project Net Annual Allocation Factor for HCS Annual Return Plant Factor for Return Return Charge (Page 1 line 15) (Col 10 * Col 11 + (Col 3 - Col 4) (Page 1 line 14) (Note J) 11a) Multi-Value Projects (MVP) 1a Pana-Sugar Creek 1b Pana-Sugar Creek - Land - No HCS 1c Sidney-Rising 1d Sidney-Rising - Land - No HCS 1e Palmyra-Pawnee 1f Palmyra-Pawnee - Land - No HCS (8) 1,180,480 209,683 216,476 169,930 2,458,151 1,206,723 (Note F) $ $ $ $ $ $ - $ $ $ $ $ $ 553 $ - $ 553 - $ $ $ $ $ 44,004 322,646 435,226 285,398 118,301 44,004 322,646 435,226 285,398 118,301 2 MVP Total Annual Revenue Requirements $6,647,570 3 Rev. Req. Adj For Attachment O $6,647,570 $ $ $ $ $ $0 1,180,480 209,683 216,476 169,930 2,458,151 1,206,723 $6,647,570 12 ATXI 2013 TRUE UP ATXI 2013 Attachment MM True Up (a) (b) (c) (d) (e) Line Project MTEP Project Actual Attachment MM No. Name Number Revenues 1 Actual Attachment MM revenues for True-Up Year 1 $ (g) (h) (i) (j) (k) Projected Annual Revenue (f) Actual Attachment MM Revenues Allocated Actual Annual Revenue True-Up Adjustment Principal Applicable Interest Rate on True-Up Adjustment Interest Total True-Up Requirement 1 Projected Attachment MM to Projects 1 [Col. (d), line 1 x (Col. (e), line 2x / Requirement 1 Actual Attachment MM Under/(Over) Under/(Over) Under/(Over) Adjustment p 2 of 2, Col. 142 Col. (e), line 3)]2 p 2 of 2, Col. 142 Col. (g) - Col. (f) Line 5 1,670,447 1,180,480 (489,967) 0.03% (4,094) (494,061) - 209,683 209,683 0.03% 1,752 211,435 350,396 216,476 (133,920) 0.03% (1,119) (135,039) - 169,930 169,930 0.03% 1,420 171,350 Col. (h) x Col. (i) x 24 months 2 Col. (h) + Col. (j) 5,146,572 2a Pana-Sugar Creek 2237 2b Pana-Sugar Creek - Land - No HCS 2237 2c Sidney-Rising 2239 2d Sidney-Rising - Land - No HCS 2239 2e Palmyra-Pawnee 3017 2,861,723 2,458,151 (403,572) 0.03% (3,372) (406,944) 2f Palmyra-Pawnee - Land - No HCS 3017 - 1,206,723 1,206,723 0.03% 10,082 1,216,805 2g Fargo-Galesburg-Oak Grove 3022 - 553 553 0.03% 5 558 2h Fargo-Galesburg-Oak Grove - Land - No HCS 3022 - 44,004 44,004 0.03% 368 44,372 2i Pawnee-Pana 3169 264,006 322,646 58,640 0.03% 490 59,130 2j Pawnee-Pana - Land - No HCS 3169 - 435,226 435,226 0.03% 3,636 438,862 2k Adair-Palmyra 3170 - 285,398 285,398 0.03% 2,385 287,783 2l Adair-Palmyra - Land - No HCS 3170 - 118,301 118,301 0.03% 988 119,289 3 Subtotal 4 Under/(Over) Recovery 5 Applicable Interest rate per month (expressed to four decimal places) 1 Amount excludes True-Up Adjustment, as reported in True-Up Year projected Attachment MM, page 2, column 15. 2 Rounded to whole dollars. 1,813,837 380,474 3,107,372 286,668 $ 5,588,351 $ 5,146,572 $ 6,647,571 $ 1,500,999 Interest Rate to be updated through July 2014 $ 12,541 $ 1,513,540 0.03% 13 ATXI 2013 MVP SPEND Ameren MVPs Ameren Name 2013 CAPEX MTEP #s MTEP Description 2237 2239 3017 3169 3170 Pana - Mt. Zion - Kansas - Sugar Creek 345 kV line Sidney to Rising 345 kV line Palmyra-Quincy-Meredosia - Ipava & Meredosia-Pawnee 345 kV Line Pawnee to Pana - 345 kV Line New Palmyra Substation (Maywood) Illinois Rivers $59 million Spoon River $3 million 3022 Fargo-Galesburg-Oak Grove 345 kV Line Mark Twain $0 million 2248 3170 Adair - Ottumwa 345 Adair-Palmyra 345 kV Line 14 AIC Revenue Requirement Projected 2013 vs Actual 2013 15 AIC 2013 TRUE UP Ameren Illinois Company - AIC Attachment O Revenue Requirement True-Up Year Ended December 31, 2013 Attachment O Net Actual Revenue Requirement (Attachment O, Pg 1, Line 7a) $ 123,689,426 Net Projected Revenue Requirement (2013 Projected Attachment O, Pg 1, Line 7a) $ 133,507,911 Under/(Over) Recovery of Net Revenue Requirement $ (9,818,485) Historic Year Actual Divisor for Pricing Zone (Attachment O, Pg 1, Line 15) Projected Year Divisor for Pricing Zone (2013 Projected Attachment O, Pg 1, Line 15) Difference between Historic & Projected Yr Divisor Prior Year Projected Annual Cost ($ per kw per yr) Prior Year Under/(Over) Divisor True-up $ $ Total Under/(Over) Recovery $ Monthly Interest Rate (to be updated through July, 2014) Interest For 24 Months $ Total Under/(Over) Recovery Including Interest $ 7,219,264 7,175,041 44,223 18.61 (822,872) (10,641,357) 0.27% (691,603) (11,332,960) 16 AIC 2013 TRUE UP AIC Rate Base 2013 Projection Page.Line 2.6 2.12 2.18 Total Gross Plant Total Accum Depreciation TOTAL NET PLANT 2.18a 100% CWIP RECOVERY 2013 Actual Change Percent 1,196,828,998 446,390,099 750,438,898 1,105,214,365 449,948,634 655,265,731 -91,614,633 3,558,534 -95,173,167 -8% 1% -13% 0 0 0 N/A 0 N/A ADJUSTMENTS TO RATE BASE 2.20 2.21 2.22 2.23 2.25 2.26 Account No. 282 Account No. 283 Account No. 190 Account No. 255 Land Held for Future Use CWC -220,140,173 -10,556,597 47,301,777 0 528,800 4,399,010 -178,790,125 -3,195,318 22,884,353 0 2,358,687 4,818,359 41,350,047 7,361,279 -24,417,424 0 1,829,887 419,349 -19% -70% -52% N/A 346% 10% 2.27 2.28 Materials & Supplies Prepayments TOTAL ADJUSTMENTS 4,093,957 932,348 -173,440,877 9,297,907 1,089,692 -141,536,445 5,203,950 157,343 31,904,432 127% 17% -18% 2.30 TOTAL RATE BASE 576,998,022 513,729,286 -63,268,735 -11% 17 AIC 2013 TRUE UP AIC Expenses 2013 Projection Page.Line 2013 Actual Change Percent 3.1 3.1a 3.2 3.3 3.4 3.5 3.5a 3.8 O&M Transmission Less LSE Expenses Less Account 565 A&G Less FERC Annual Fees Less EPRI, ect. Plus Trans. Reg. Comm. Exp TOTAL O&M 39,184,517 3,090,097 11,657,490 11,319,374 0 596,873 32,649 35,192,080 39,359,186 1,685,383 11,099,804 11,962,118 0 342,724 353,476 38,546,869 174,669 -1,404,714 -557,686 642,744 0 -254,149 320,827 3,354,789 0% -45% -5% 6% N/A -43% 983% 10% 3.12 TOTAL DEPRECIATION 22,002,475 19,686,582 -2,315,893 -11% 3.13 TAXES Payroll 875,947 783,109 0 -92,838 N/A -11% Property Other Income Taxes TOTAL TAXES 1,001,216 367,419 26,404,240 28,648,821 893,412 265,149 25,071,011 27,012,681 -107,804 -102,270 -1,333,228 -1,636,140 -11% -28% -5% -6% TOTAL EXPENSES 85,843,376 85,246,132 -597,244 -1% 3.16 3.18 3.27 18 AIC 2013 TRUE UP Total AIC Capital Structure Capital Structure - 2013 Projection Page.Line 4.27 4.28 4.29 4.3 Long Term Debt Preferred Stock Common Stock Total $ 1,693,174,717 61,721,350 1,977,269,372 3,732,165,439 % 45% 2% 53% 100% Cost Weighted 0.0755 0.0342 0.0490 0.0008 0.1238 0.0656 0.1006 42% 2% 56% 100% Cost Weighted 0.0785 0.0331 0.0491 0.0007 0.1238 0.0698 0.1036 Capital Structure - 2013 Actual Page.Line 4.27 4.28 4.29 4.3 Long Term Debt Preferred Stock Common Stock Total Change in Return $ 1,725,866,469 61,632,375 2,307,081,968 4,094,580,813 % 0.2923% 19 AIC 2013 TRUE UP Total AIC Revenue Requirement Page.Line 2013 Projection 576,998,022 10.06% 58,068,885 2013 Actual 513,729,286 10.36% 53,202,941 Change -63,268,735 0.29% -4,865,944 Percent -11% 3% -8% 2.30 4.30 3.28 TOTAL RATE BASE Rate of Return Return 3.29 Total Expenses TOTAL GROSS REV. REQ. 85,843,376 143,912,261 85,246,132 138,449,073 -597,244 -5,463,188 -1% -4% 3.30 3.30a 3.31 Less ATT. GG Adjustment Less ATT. MM Adjustment GROSS REV. REQ. UNDER ATT. O 2,393,291 0 141,518,970 3,162,192 0 135,286,881 768,901 0 -6,232,089 32% N/A -4% 20 AIC 2013 TRUE UP AIC True-up & Net Revenue Requirement Page.Line 1.1 1.6 Gross Revenue Requirement Total Revenue Credits 1.6a 1.6b 1.6c 1.6d 1.6e Historic Year Actual ATRR Projected ATRR from Prior Year Prior Year ATRR True-Up Prior Year Divisor True-Up Interest on Prior Year True-Up 1.7a 1.7b 1.7 NET REVENUE REQUIREMENT Prairie Power AIC Adjusted Revenue Requirement 2013 Projection 141,518,970 8,011,058 2013 Actual 135,286,881 11,597,455 Change -6,232,089 3,586,397 Percent -4% 45% 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 N/A N/A N/A N/A N/A 133,507,911 583,724 134,091,635 123,689,426 243,218 123,932,645 -9,818,485 -340,506 -10,158,991 -7% -58% -8% 21 AIC 2013 ACTUAL AIC Attachment GG Calculation - Page 1 (1) Line No. 1 2 Gross Transmission Plant - Total Net Transmission Plant - Total 3 4 O&M EXPENSE Total O&M Allocated to Transmission Annual Allocation Factor for O&M 5 6 GENERAL AND COMMON (G&C) DEPRECIATION EXPENSE Total G&C Depreciation Expense Annual Allocation Factor for G&C Depreciation Expense 7 8 (2) Attachment O Page, Line, Col. Attach O, p 2, line 2 col 5 (Note A) Attach O, p 2, line 14 and 23b col 5 (Note B) (3) (4) Transmission Allocator 1,066,926,320 630,842,437 Attach O, p 3, line 8 col 5 (line 3 divided by line 1 col 3) 38,546,869 3.61% 3.61% Attach O, p 3, lines 10 & 11, col 5 (Note H) (line 5 divided by line 1 col 3) 1,451,559 0.14% 0.14% TAXES OTHER THAN INCOME TAXES Total Other Taxes Annual Allocation Factor for Other Taxes Attach O, p 3, line 20 col 5 (line 7 divided by line 1 col 3) 1,941,670 0.18% 0.18% 9 Annual Allocation Factor for Expense Sum of line 4, 6, and 8 10 11 INCOME TAXES Total Income Taxes Annual Allocation Factor for Income Taxes Attach O, p 3, line 27 col 5 (line 10 divided by line 2 col 3) 25,071,011 3.97% 3.97% 12 13 RETURN Return on Rate Base Annual Allocation Factor for Return on Rate Base Attach O, p 3, line 28 col 5 (line 12 divided by line 2 col 3) 53,202,941 8.43% 8.43% 14 Annual Allocation Factor for Return Sum of line 11 and 13 3.93% 12.41% 22 AIC 2013 ACTUAL AIC Attachment GG Calculation - Page 2 (1) Line No. Project Name (2) (3) MTEP Project Project Gross Number Plant (Note C) 1a 1b 1c 1d Wood River-Roxford 1502 138kV line Sidney-Paxton 138kV Reconductor 18 miles Coffeen Plant-Coffeen, North - 2nd. Bus tie Latham - Oreana 8.5 mile 345kV line 728 870 2829 2068 $ $ $ $ 3,424,487 5,994,479 5,592,558 3,432,457 (4) Annual Allocation Factor for Expense (Page 1 line 9) 3.93% 3.93% 3.93% 3.93% (5) (6) (7) Annual Expense Charge Project Net Plant Annual Allocation Factor for Return (Col. 3 * Col. 4) (Note D) $134,614.10 $235,638.61 $219,839.41 $134,927.39 $ $ $ $ 3,098,644 5,394,578 5,341,446 3,426,302 (8) Project Annual Return Depreciation Charge Expense (Page 1 line 14) (Col. 6 * Col. 7) 12.41% 12.41% 12.41% 12.41% (9) $384,474.94 $669,350.85 $662,758.36 $425,130.21 (Note E) $51,625 $99,719 $97,898 $46,217 (10) (11) Annual Revenue Requirement True-Up Adjustment (Sum Col. 5, 8 & 9) $570,713.86 $1,004,707.98 $980,495.36 $606,274.58 2 Annual Totals $3,162,192 3 Rev. Req. Adj For Attachment O $3,162,192 (12) (Note F) $ $ $ $ Network Upgrade Charge Sum Col. 10 & 11 (Note G) - 570,714 1,004,708 980,495 606,275 $0 $3,162,192 23 AIC 2013 TRUE UP AIC 2013 Attachment GG True Up (a) (b) (c) Line Project MTEP Project No. Name Number 1 Actual Attachment GG revenues for True-Up Year 1 $ (d) (e) (f) Actual (g) (h) (i) Actual Attachment GG Projected Annual Revenue Attachment GG Revenues Allocated Actual Annual Revenue True-Up Adjustment Principal Revenues Requirement 1 Projected Attachment GG to Projects 1 [Col. (d), line 1 x (Col. (e), line 2x / Requirement 1 Actual Attachment GG Under/(Over) Applicabl e Interest Rate on Under/(O ver) p 2 of 2, Col. 102 Col. (e), line 3)]2 p 2 of 2, Col. 102 Col. (g) - Col. (f) Line 5 (j) (k) True-Up Adjustment Interest Total True-Up Under/(Over) Adjustment Col. (h) x Col. (i) x 24 months 2 Col. (h) + Col. (j) 2,517,438 2a Wood River-Roxford 1502 138kV line 728 536,385 564,209 570,714 6,505 0.03% 49 6,554 2b Sidney-Paxton 138kV Reconductor 18 miles 870 949,603 998,862 1,004,708 5,846 0.03% 44 5,890 2c Coffeen Plant-Coffeen, North - 2nd. Bus tie 2829 907,302 954,367 980,495 26,128 0.03% 198 26,326 2d Latham - Oreana 8.5 mile 345kV line 2068 - 606,275 606,275 0.03% 4,598 610,873 4,889 $ 649,643 3 Subtotal 4 Under/(Over) Recovery 5 Applicable Interest rate per month (expressed to four decimal places) 1 Amount excludes True-Up Adjustment, as reported in True-Up Year projected Attachment GG, page 2, column 11. Rounded to whole dollars. 2 $ 2,393,290 - $ 2,517,438 $ 3,162,192 $ Interest Rate to be updated through July 2014 644,754 $ 0.0316% 24 SCHEDULE 9 NITS RATE FOR 2013* Page.Line 1.7 1.7 1.15 . . AIC Adjusted Revenue Requirement ATXI Adjusted Revenue Requirement Total Revenue Requirement Ameren Illinois Divisor Annual Cost ($/kW/Yr) Network & P-to-P Rate ($/kW/Mo) 2013 Projection 134,091,635 7,406,002 141,497,637 7,175,041 19.721 1.643 2013 Actual 123,932,645 8,951,929 132,884,574 7,219,264 18.407 1.534 Change -10,158,991 1,545,928 -8,613,063 44,224 (1.314) (0.109) Percent -8% 21% -6% 1% -7% -7% * PPI became a TO in the AMIL pricing zone effective 6/1/13 so the actual AMIL 2013 rate would be higher than shown above. 25 QUESTIONS? Appendix supplemental background information not covered in presentation 27 APPENDIX - AIC AND ATXI • Both AIC and ATXI are transmission owning subsidiaries of Ameren Corporation, as well as MISO Transmission Owners (TOs) • AIC will continue to build and own traditional reliability projects • ATXI is in the process of building and will own new regional transmission projects • Prairie Power, Inc. became a TO in the AMIL pricing zone effective June 1, 2013. • The sum of their Attachment O net revenue requirements equals the total revenue requirement for AMIL pricing zone to be collected under Schedule 9 (NITS) 28 APPENDIX - MISO ATTACHMENTS O, GG & MM Calculate rates for Schedules 9, 26 & 26-A • • • • • Attachment GG - Schedule 26 Attachment MM - Schedule 26-A Attachment O - net revenue requirement billed under Schedule 9 Schedules 26 and 26-A are billed by MISO Schedule 9 is billed by Ameren 29 APPENDIX - MISO ATTACHMENT GG • Cost Recovery for certain Network Upgrades • Eligible projects • Market Efficiency • Generator Interconnections • Cost shared based upon project type • MISO-wide based on load • Subregional based on LODF (Line Outage Distribution Factor) • AIC has four Attachment GG projects completed • Two additional projects under construction • ATXI has no Attachment GG projects 30 APPENDIX - MISO ATTACHMENT MM • Cost recovery for Multi-Value Projects (MVPs) • Very similar format as Attachment GG • Criteria for being considered • Developed through planning process and support energy policy • Multiple types of economic value across multiple pricing zones with benefit to costs > 1 • Address at least one: • Projected NERC violation • Economic-based issue • Cost shared across MISO based on load • AMIL Zone is approximately 9% • Ameren MVPs will primarily be built by ATXI • AIC will be responsible for modifications needed to its existing facilities 31 APPENDIX - MISO ATTACHMENT O, GG & MM • All transmission costs included in Attachment O calculation • Schedule 9 based on net revenue requirement – reductions for: • Costs recovered in Schedules 26 & 26-A • Revenue Credits • Point-to-Point revenue in Schedules 7 & 8 • Rental revenue • Revenue from generator interconnections 32 APPENDIX - MISO TRANSMISSION EXPANSION PLAN (MTEP) • Developed on an annual basis building upon previous analysis • • MISO, Transmission Owners & Stakeholders Includes subregional planning meetings • MTEP goals • • • • • • • Ensure the reliability of the transmission system Ensure compliance with NERC Standards Provide economic benefits, such as increased market efficiency Facilitate public policy objectives, such as meeting Renewable Portfolio Standards Address other issues or goals identified through the stakeholder process Multiple future scenarios analyzed End result – comprehensive, cohesive plan for MISO footprint • MTEP approved by MISO Board of Directors 33 MISO MVPS • Brief history of development • Began investigating value added expansion in 2003 • 2008 Regional Generation Outlet Study (RGOS) - formed basis of Candidate MVP portfolio • Portfolio refined due to additional analysis • MISO approved portfolio of 17 Projects • Seven transmission line segments (MTEP proj numbers) in Ameren territory • Ameren identifies these three projects as: • Illinois Rivers (four line segments) • Spoon River • Mark Twain (two line segments) • Broadly cost-shared, AMIL pricing zone allocated 9% of each MVP no matter where project is located or who builds it 34 APPENDIX - MAP OF AMEREN MVPS 35 APPENDIX - RATE INCENTIVES • FERC approved the following rate incentives for Illinois Rivers in Docket No. EL10-80 – CWIP (no AFUDC) – Abandonment (requires additional filing prior to recovery) – Hypothetical capital structure during construction for ATXI • FERC approved similar incentives for Spoon River and Mark Twain Projects in Docket No. ER12-2216 36 APPENDIX - MISO WEB LINKS • Transmission Pricing - Attachments O, GG & MM Information • https://www.misoenergy.org/MarketsOperations/TransmissionSettlement s/Pages/TransmissionPricing.aspx • Ameren OASIS • http://www.oasis.oati.com/AMRN/index.html • MTEP 13 • https://www.misoenergy.org/Planning/TransmissionExpansionPlanning/ Pages/MTEP13.aspx • MTEP 14 • https://www.misoenergy.org/Planning/TransmissionExpansionPlanning/ Pages/MTEP14.aspx • Schedule 26 & 26-A Indicative Charges • https://www.misoenergy.org/Planning/TransmissionExpansionPlanning/ Pages/MTEPStudies.aspx 37 APPENDIX - AIC AND ATXI • Additional questions can be sent to Ameren’s Formula Rates email address – MISOFormulaRates@ameren.com 38