EXHIBIT 10(b) MONTHLY SERVICER'S CERTIFICATE CONSUMERS FUNDING LLC $468,592,000 SECURITIZATION BONDS, SERIES 2000-1 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: May 2002 CURRENT BILLING MONTH 5/3/02 - 6/3/02 COLLECTION CURVE 100% STANDARD BILLING FOR PRIOR BILLING MONTH Residential Total Billed $117,138,897 Residential SECURITIZATION CHARGE (SC) Billed $1,360,694 1.162% Commercial Total Billed $77,778,833 Commercial SECURITIZATION CHARGE (SC) Billed $1,349,957 1.736% Industrial Total Billed $53,658,096 Industrial SECURITIZATION CHARGE (SC) Billed $1,481,239 2.761% YTD NET WRITE-OFFS AS A % OF BILLED REVENUE Non-Residential Customer Net Write-offs 0.350% Residential Customer Net Write-offs 0.330% Total Net Write-offs 0.340% AGGREGATE SC COLLECTIONS TOTAL SC REMITTED FOR BILLING MONTH Residential Class SC Collected $1,175,854 Commercial Class SC Collected $1,255,583 Industrial Class SC Collected $1,424,079 Total SC Collected $3,855,516 Aggregate SC Remittances for December BILLING MONTH $1,632,249 Aggregate SC Remittances for January BILLING MONTH $3,523,090 Aggregate SC Remittances for February BILLING MONTH $4,133,025 Aggregate SC Remittances for March BILLING MONTH $4,173,765 Aggregate SC Remittances for April BILLING MONTH $4,303,958 Aggregate SC Remittances for May BILLING MONTH $3,855,516 TOTAL CURRENT SC REMITTANCES $21,621,603 Page 1 of 3 CURRENT BILLING MONTH 5/3/02 - 6/3/02 COLLECTION CURVE 100% CALCULATED SC COLLECTED AMOUNT RESIDENTIAL A-1 Residential SC Collected $1,117,886 A-3 Residential T.O.D. SC Collected $4,675 A-4 Alternate Residence SC Collected $26,377 A-5 Residential Farm/Life Support SC Collected $26,916 TOTAL RESIDENTIAL SC COLLECTED $1,175,854 COMMERCIAL B-1 General Primary (041) SC Collected $14,853 B-General Secondary (010) SC Collected $228,268 C- General Secondary (011) SC Collected $487,152 D-General Primary (018) SC Collected $292,338 F-Primary High Load Factor (032) SC Collected $62,830 GH-General Service Heating (013) SC Collected $5,946 H- Water Heating Service (014) SC Collected $523 L-1 General Energy-Only Street Lighting SC Collected $1,412 L-2 General Service (Cust Owned) St Light SC Collected $809 L-3 General Service (Co Owned) St Light SC Collected $11,058 L-4 General Service Outdoor Lighting Commercial SC Collected $1,501 PS-1 General Secondary Public Pumping SC Collected $7,013 PS-2 General Primary Public Pumping SC Collected $6,321 PS-3 General Optional Primary Public Pumping SC Collected $40,986 R-1 General Secondary Resale SC Collected $51 R-2 General Secondary Resale SC Collected $920 R-3 General Primary Resale SC Collected $35,618 ROA-P Retail Open Access Primary (110) SC Collected $33,244 ROA-S Retail Open Access Secondary Com SC Collected $7,363 SC - Special Contract Commercial SC Collected $4,232 SPEC Grand Rapids Special Contract SC Collected $3,013 UR-General Unmetered SC Collected $10,132 TOTAL COMMERCIAL SC COLLECTED $1,255,583 INDUSTRIAL B-1 General Primary (042) SC Collected $17,677 B-General Secondary (020) SC Collected $36,431 C- General Secondary (021) SC Collected $76,779 CG-Cogeneration/Small Power Production Purchase SC Collected $876 D-General Primary (028) SC Collected $615,428 F-Primary High Load Factor (033) SC Collected $100,183 GH-General Service Heating (023) SC Collected $57 GMD General Motors SC Collected $77,311 GMF General Motors SC Collected $137,217 GMF-1 General Motors SC Collected $15,247 GMJ-1 General Motors SC Collected $10,335 Page 2 of 3 CURRENT BILLING MONTH 5/3/02 - 6/3/02 COLLECTION CURVE 100% H- Water Heating Service (024) SC Collected $3 I-General Primary Interruptible (034) SC Collected $3,310 J-1General Alternative Electric Metal Melting SC Collected $37,651 J-General Primary Electric Furnace (037) SC Collected $6,847 L-4 General Service Outdoor Lighting Industrial SC Collected $87 ROA-P Retail Open Access Primary (111) SC Collected $145,519 ROA-S Retail Open Access Secondary Ind SC Collected $481 SC - Special Contract Industrial SC Collected $142,640 TOTAL INDUSTRIAL SC COLLECTED $1,424,079 TOTAL SC COLLECTED $3,855,516 </Table> Executed as of this 18th day of June 2002. CONSUMERS ENERGY COMPANY AS SERVICER /s/ Glenn Barba ------------------------------- Glenn Barba, Controller CC: Consumers Funding LLC Suite M-1079 212 W. Michigan Ave Jackson, Mi 49201 Page 3 of 3