Monthly Servicer's Certificate between Consumers Energy Company and Consumers Funding LLC (September 2005)

Summary

This certificate, issued by Consumers Energy Company as Servicer to Consumers Funding LLC as Issuer, reports on the collection and remittance of securitization charges for August 2005 under their Servicing Agreement. It details amounts billed and collected from residential, commercial, and industrial customers, as well as net write-offs and remittance totals. The document certifies compliance with the agreement's requirements for reporting and remitting funds related to $468,592,000 in securitization bonds.

EX-10.(B) 3 k99332exv10wxby.txt MONTHLY SERVICER'S CERTIFICATE DATED SEPTEMBER 12, 2005 Exhibit 10(b) MONTHLY SERVICER'S CERTIFICATE CONSUMERS FUNDING LLC $468,592,000 SECURITIZATION BONDS, SERIES Pursuant to Section 3.05 of the Servicing Agreement dated as of November 8, 2001 (the "Consumers Servicing Agreement") between Consumers Energy Company, as Servicer and Consumers Funding LLC, as Issuer, the Servicer does hereby certify as follows: Capitalized terms used in the Monthly Servicer's Certificate (the "Monthly Certificate") have their respective meanings as set forth in the Servicing Agreement. References herein to certain sections and subsections are references to the respective sections of the Servicing Agreement. Current BILLING MONTH: August 2005 CURRENT BILLING MONTH 8/3/2005 - 8/31/2005 COLLECTION CURVE 100% STANDARD BILLING FOR PRIOR BILLING MONTH Residential Total Billed $137,701,298 Residential SECURITIZATION CHARGE (SC) Billed $ 1,796,015 1.304% Commercial Total Billed $ 91,022,452 Commercial SECURITIZATION CHARGE (SC) Billed $ 1,658,813 1.822% Industrial Total Billed $ 46,783,254 Industrial SECURITIZATION CHARGE (SC) Billed $ 1,406,451 3.006% YTD NET WRITE-OFFS AS A% OF BILLED REVENUE Non-Residential Customer Net Write-offs 0.240% Residential Customer Net Write-offs 0.280% Total Net Write-offs 0.260% AGGREGATE SC COLLECTIONS TOTAL SC REMITTED FOR BILLING MONTH Residential Class SC Collected $ 1,842,566 Commercial Class SC Collected $ 1,641,277 Industrial Class SC Collected $ 1,528,635 Total SC Collected $ 5,012,478 Aggregate SC Remittances for July 2005 BILLING MONTH $ 4,244,973 Aggregate SC Remittances for August 2005 BILLING MONTH $ 5,012,478 Aggregate SC Remittances for September 2005 BILLING MONTH $ 0 TOTAL CURRENT SC REMITTANCES $ 9,257,451

Page 1 of 3 CURRENT BILLING MONTH 8/3/2005 - 8/31/2005 COLLECTION CURVE 100% CALCULATED SC COLLECTED AMOUNT RESIDENTIAL A-1 Residential SC Collected $ 1,754,658 A-3 Residential T.O.D. SC Collected $ 4,442 A-4 Alternate Residence SC Collected $ 48,224 A-5 Residential Farm/Life Support SC Collected $ 35,242 TOTAL RESIDENTIAL SC COLLECTED $ 1,842,566 COMMERCIAL B-1 General Primary (041) SC Collected $ 27,939 B-General Secondary (010) SC Collected $ 337,496 C- General Secondary (011) SC Collected $ 571,636 D-General Primary (018) SC Collected $ 349,115 F-Primary High Load Factor (032) SC Collected $ 47,930 GH-General Service Heating (013) SC Collected $ 4,060 H- Water Heating Service (014) SC Collected $ 728 L-1 General Energy-Only Street Lighting SC Collected $ 1,736 L-2 General Service (Cust Owned) St Light SC Collected $ 1,741 L-3 General Service (Co Owned) St Light SC Collected $ 8,861 L-4 General Service Outdoor Lighting Commercial SC Collected $ 0 PS-1 General Secondary Public Pumping SC Collected $ 7,436 PS-2 General Primary Public Pumping SC Collected $ 8,726 PS-3 General Optional Primary Public Pumping SC Collected $ 48,667 R-1 General Secondary Resale SC Collected $ 76 R-2 General Secondary Resale SC Collected $ 1,063 R-3 General Primary Resale SC Collected $ 32,906 ROA-P Retail Open Access Primary (110) SC Collected $ 133,789 ROA-S Retail Open Access Secondary Com SC Collected $ 47,846 SC - Special Contract Commercial SC Collected $ 2,310 SPEC Grand Rapids Special Contract SC Collected $ 2,327 UR-General Unmetered SC Collected $ 4,889 TOTAL COMMERCIAL SC COLLECTED $ 1,641,277 INDUSTRIAL B-1 General Primary (042) SC Collected $ 20,324 B-General Secondary (020) SC Collected $ 38,476 C- General Secondary (021) SC Collected $ 87,015 CG-Cogeneration/Small Power Production Purchase SC Collected $ 3,758 D-General Primary (028) SC Collected $ 576,958 F-Primary High Load Factor (033) SC Collected $ 62,342 GH-General Service Heating (023) SC Collected $ 34 GMD General Motors SC Collected $ 45,030 GMF General Motors SC Collected $ 77,394 GMJ-1 General Motors SC Collected $ 4,987 H- Water Heating Service (024) SC Collected $ 0

Page 2 of 3 CURRENT BILLING MONTH 8/3/2005 - 8/31/2005 COLLECTION CURVE 100% I-General Primary Interruptible (034) SC Collected $ 0 J-1General Alternative Electric Metal Melting SC Collected $ 26,641 J-General Primary Electric Furnace (037) SC Collected $ 7,913 R-3 General Primary Resale (027) SC Collected $ 978 ROA-P Retail Open Access Primary (111) SC Collected $ 297,862 ROA-S Retail Open Access Secondary Ind SC Collected $ 8,304 SC - Special Contract Industrial SC Collected $ 270,619 TOTAL INDUSTRIAL SC COLLECTED $ 1,528,635 TOTAL SC COLLECTED $ 5,012,478

Executed as of this 12th day of September 2005 CONSUMERS ENERGY COMPANY AS SERVICER /s/ Glenn P. Barba ---------------------------------------- Glenn P. Barba, Vice President, Controller and Chief Accounting Officer CC: Consumers Funding LLC One Energy Plaza Jackson, Mi 49201 Page 3 of 3