1. PowerVu Jim Smith – Chief Technology Officer

2. 1 About Digital Realty Trust (NYSE: DLR) We are the worlds largest wholesale datacenter provider In 27 markets across North America and Europe with 15 million square feet Operate ~3M sq ft of datacenter for our customers We offer a full suite of wholesale datacenter products: Turn-Key Datacenters ® Build-to-Suit POD Architecture Services® Buy-to-Suit Powered Base Buildings ® Large scale, high volume datacenter development and acquisition expert Over US$2.5B of datacenters developed Over US$2.5B of datacenters acquired Industry leader in green datacenter building and operations

3. 2 PUE Love it Drives good behavior Legitimate metric Hate it Drives bad behavior Greenwash Conclusions Here to stay Part of any productivity metric Operators use it Customers love it

4. 3 How We Measure CM3350

5. 4 Discrete vs. Continuous Measurement

6. 5 BMS Workstation View

7. 6 BMS Integration

8. 7 The Application

9. 8 Trending

10. 9 Raw Data

11. 10 Problem Solving

12. 11 Problem Solved

13. 12 Other Problems Solved Benchmark v Actual Operating data of a loaded site showed higher PUE than Cx data Normally, we get BETTER operating performance than Cx data Client tile placements PowerVu allowed benchmarking and economic comparison

14. 13 Recommendations Measure PUE Daily manual reading is sufficient Push operating data up and down the chain Operators are best users of data Dont forget design teams that built the site Be careful with absolute comparisons or metrics Share your data and discuss with your peers

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