1. Consumers Energy Company (CECo) the principal subsidiary of CMS Energy values Accreditation

2. CECo is the 4th largest investor owned dual energy utility in the United States We sell electricity We sell natural gas

3. Advantages of Accreditation Personnel utilize best practices for minimizing risk associated with measurement uncertainty. Personnel are accustomed to being audited and cross examined. Data is defensible because standards adhere to multi-lateral recognition agreements.

4. Product Assessment Laboratory Services (LS) is an A2LA accredited calibration laboratory. Its personnel assisted the Metering Technology Center’s (MTC) technical staff with their product testing. CMS Energy’s Smart Grid (SG) Testing Laboratory helped to accelerate acceptance and deployment of new products.

5. SG is enhanced because information is communicated back to the office 11 Information & Communication Enabled Power Infrastructure DistributionConsumerTransmissionSubstation Markets Information & Communication Enabled Power Infrastructure DistributionMetrologyTransmissionSubstation Generation

6. EPRI values a SG with AMI The Electrical Power Research Institute (EPRI) analysis found that a lack of metrology often contributes to blackouts. EPRI continues to be heavily involved in advocating a SG that promotes an Advanced Metering Infrastructure (AMI) that is envisioned to some day heal itself against disturbances.

7. EPRI Video How smart grid heals itself. http://www.whatissmartgrid.org/smart-grid-101/videos

8. EPRI’s vision of a Smart Grid Secured by AMI

9. Electric Testing Laboratory Lab verified vendors’ advertised claims against C12 American National Standards Institute (ANSI) specification standards. In preparation for testing, LS upgraded its AC kilowatt-hour meter test equipment and claim to be the 1st laboratory in the United States accredited to calibrate electrical energy standards.

10. Standards Work Stations Utilize Radian Research equipment Reference Working

11. Gas Testing Laboratory Lab verified vendors’ advertised claims against ANSI B109 specification standards. LS anticipates further expanding its scope of A2LA accreditation to be able to calibrate gas energy standards.

12. Temperature Work Stations Utilize Thermotron Equipment

13. High Voltage Work Stations Utilize EMC Equipment Dynamic Disturbances Transient Disturbances

14. Product Field Testing Outdoor Weathering

15. Lessons Learned Project was so unique that Architects, Engineers, and Consultants’ conflicting interests cause project creep in schedule and budget. Capital dollars can not be used to perform alterations on existing facilities.

16. Suggestions Request a demonstration of test equipment prior to purchase and budget time to verify functionality against advertised specifications. Visit other facilities that perform similar testing to learn valuable lessons.

17. Conclusion Workforce synergies were gained and capital dollars were controlled to assure stockholders investments were made wisely. It is our hope that what we shared was beneficial to you and your future energy and environmental procurements.