Exhibit 10(b) MONTHLY SERVICER'S CERTIFICATE CONSUMERS FUNDING LLC $468,592,000 SECURITIZATION BONDS, SERIES 2001-1 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: February 2004 CURRENT BILLING MONTH 2/4/2004 - 3/3/2004 COLLECTION CURVE 100% STANDARD BILLING FOR PRIOR BILLING MONTH Residential Total Billed $182,702,523 Residential SECURITIZATION CHARGE (SC) Billed $ 1,653,433 0.905% Commercial Total Billed $ 90,940,545 Commercial SECURITIZATION CHARGE (SC) Billed $ 1,417,470 1.559% Industrial Total Billed $ 45,501,424 Industrial SECURITIZATION CHARGE (SC) Billed $ 1,249,652 2.746% YTD NET WRITE-OFFS AS A % OF BILLED REVENUE Non-Residential Customer Net Write-offs 0.070% Residential Customer Net Write-offs 0.470% Total Net Write-offs 0.250% AGGREGATE SC COLLECTIONS TOTAL SC REMITTED FOR BILLING MONTH Residential Class SC Collected $ 1,606,075 Commercial Class SC Collected $ 1,482,557 Industrial Class SC Collected $ 1,476,622 Total SC Collected $ 4,565,254 Aggregate SC Remittances for January 2004 BILLING MONTH $ 3,886,644 Aggregate SC Remittances for February 2004 BILLING MONTH $ 4,565,254 Aggregate SC Remittances for March 2004 BILLING MONTH $ 0 TOTAL CURRENT SC REMITTANCES $ 8,451,898 Page 1 of 3 CURRENT BILLING MONTH 2/4/2004 - 3/3/2004 COLLECTION CURVE 100% CALCULATED SC COLLECTED AMOUNT RESIDENTIAL A-1 Residential SC Collected $ 1,529,423 A-3 Residential T.O.D. SC Collected $ 7,090 A-4 Alternate Residence SC Collected $ 36,556 A-5 Residential Farm/Life Support SC Collected $ 33,006 TOTAL RESIDENTIAL SC COLLECTED $ 1,606,075 COMMERCIAL B-1 General Primary (041) SC Collected $ 24,856 B-General Secondary (010) SC Collected $ 267,670 C- General Secondary (011) SC Collected $ 541,167 D-General Primary (018) SC Collected $ 328,959 F-Primary High Load Factor (032) SC Collected $ 49,952 GH-General Service Heating (013) SC Collected $ 8,288 H- Water Heating Service (014) SC Collected $ 684 L-1 General Energy-Only Street Lighting SC Collected $ 3,064 L-2 General Service (Cust Owned) St Light SC Collected $ 3,110 L-3 General Service (Co Owned) St Light SC Collected $ 15,682 L-4 General Service Outdoor Lighting Commercial SC Collected $ 2,006 PS-1 General Secondary Public Pumping SC Collected $ 7,846 PS-2 General Primary Public Pumping SC Collected $ 8,692 PS-3 General Optional Primary Public Pumping SC Collected $ 38,585 R-1 General Secondary Resale SC Collected $ 2 R-2 General Secondary Resale SC Collected $ 951 R-3 General Primary Resale SC Collected $ 29,428 ROA-P Retail Open Access Primary (110) SC Collected $ 102,005 ROA-S Retail Open Access Secondary Com SC Collected $ 34,583 SC - Special Contract Commercial SC Collected $ 1,750 SPEC Grand Rapids Special Contract SC Collected $ 3,586 UR-General Unmetered SC Collected $ 9,691 TOTAL COMMERCIAL SC COLLECTED $ 1,482,557 INDUSTRIAL B-1 General Primary (042) SC Collected $ 18,874 B-General Secondary (020) SC Collected $ 34,125 C- General Secondary (021) SC Collected $ 74,987 CG-Cogeneration/Small Power Production Purchase SC Collected $ 3,674 D-General Primary (028) SC Collected $ 521,410 F-Primary High Load Factor (033) SC Collected $ 136,410 GH-General Service Heating (023) SC Collected $ 97 GMD General Motors SC Collected $ 56,812 GMF General Motors SC Collected $ 108,455 GMF-1 General Motors SC Collected $ 10,847 GMJ-1 General Motors SC Collected $ 7,529 Page 2 of 3 CURRENT BILLING MONTH 2/4/2004 - 3/3/2004 COLLECTION CURVE 100% H- Water Heating Service (024) SC Collected $ 1 I-General Primary Interruptible (034) SC Collected $ 3,663 J-1General Alternative Electric Metal Melting SC Collected $ 32,199 J-General Primary Electric Furnace (037) SC Collected $ 6,590 L-4 General Service Outdoor Lighting Industrial SC Collected $ 111 R-3 General Primary Resale (027) SC Collected $ 16 ROA-P Retail Open Access Primary (111) SC Collected $ 341,261 ROA-S Retail Open Access Secondary Ind SC Collected $ 3,026 SC - Special Contract Industrial SC Collected $ 116,535 TOTAL INDUSTRIAL SC COLLECTED $ 1,476,622 TOTAL SC COLLECTED $ 4,565,254 Executed as of this 15th day of March 2004. 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