1 DOE Data Center Tools Suite Data Center Energy Profiler (“DC Pro”) Lawrence Berkeley National Laboratory ANCIS EYP Mission Critical Rumsey Engineers Taylor Engineering

2 Energy Savings: Profiling is the First Step Energy Profiling Subsystem Assessment Detailed Engineering Audit Engineering Design Savings Validation (M&V) Retrofit/RCx Implementation Documentation

3 Data Center Profiling Tool Objectives Tentative Estimate the efficiency of the IT equipment (calculations/Watt). Not simple. Firm Make an initial estimate of the overall efficiency of the data center support systems (the DCIE metric). Create initial, estimated energy use breakouts for the major data center systems. Provide a list of applicable energy-saving Actions.

4 Springboard: Quick Plant Energy Profiler, or “Quick PEP” Version 1.1.3, Feb 21, Suggested name for new tool: Data Center Energy Profiler, or “DC Pro”

5 Energy Profiling Steps Quick PEP Home Screen 1 – Case Information 2 – Supplied Electricity 3 – Supplied Fuel 4 – Supplied Steam 5 – Product Info. (optional) 6 – Energy Use Systems 7 – Energy Use Distribution 8 – Energy Savings Opp. 9 – Results DC Pro (suggested) Home Screen 1 – Case Information 2 – Energy Use Systems 3 – Product Info. (optional) 4 – Supplied Electricity 5 – Supplied Fuel 6 – Supplied Steam 7 – Supplied Chilled Water 8 – Energy Use Distribution 9 – Energy Savings Opp. 10 – Results

6 Home Screen Quick PEP Allows the user to create an account (optional), and to create multiple plant profiles (one at a time). DC Pro We suggest leaving the function of this screen as-is.

7 Step 1 – Case Information Quick PEP asks for: Case Name Industry Contact Name Contact Contact Address DC Pro (suggested) Ask for the same, plus: Climate Zone Floor Area, Non-Data Center Floor Area, Data Center Data Center Tier (Uptime def.) DC Current Build-Out (%)

8 Step 2 - Energy Use Systems Quick PEP Contains many systems that do not apply to data centers DC Pro (suggested new list of major systems) Data Center Loads Controls Electric Distribution Air-Side Data Center Cooling Chilled Water Plant

9 Step 2 - Energy Use Systems, cont. Data Center Load Subsystems IT Equipment Lights Controls Subsystems Energy Management System Electric Distribution Subsystems Transformers Uninterruptible Power Supplies Power Distribution Units

10 Step 2 - Energy Use Systems, cont. Air-Side Subsystems Floor Plenum Ceiling Plenum Ducts Humidifiers Active Dehumidification via Cooling Coils Dedicated Ventilation Unit

11 Step 2 - Energy Use Systems, cont. Data Center Cooling Subsystems DX CRACs, Air-Cooled Condenser DX CRACs, Water-Cooled Condenser, Served by Dry Cooler DX CRACs, Water-Cooled Condenser, Served by Cooling Tower DX Package Unit(s), Air-Cooled Condenser DX Package Unit(s), Evaporatively-Cooled Condenser CHW CRAH CHW AHU Air-Side Economizer Rack-Mounted CHW Coils Rack-Mounted Hybrid CHW/Refrigerant Cooling (eg, Liebert XDV)

12 Step 2 - Energy Use Systems, cont. Chilled Water Plant Subsystems Electric Chilled Water Plant, Air-Cooled Electric Chilled Water Plant, Water-Cooled Water-Side Economizer Having the user identify existing systems supports: Creating the initial, default energy use break-outs. Limiting the scope of the Score Card questions. Limiting the list of applicable Actions.

13 Step 3 - Product Information (Optional) Quick PEP Flexible screen allows user to quantify one additional parameter (e.g., product, employees, sales), and receive energy-per-X results. DC Pro The concept is fine, but there is ongoing debate about how to quantify what data centers produce.

14 Supplied Energy “Streams” Step 4 – Supplied Electricity Step 5 – Supplied Fuel Step 6 – Supplied Steam Step 7 – Supplied Chilled Water Quick PEP does not provide any results unless at least one energy stream is quantified. We suggest that this same approach be retained for DC Pro, and furthermore suggest that there must be at least one electric stream.

15 Step 4 - Supplied Electricity The data center is often embedded in a larger building. We do not necessarily need electricity streams for the entire facility, just streams that feed the datacenter and its support systems. It is OK to have the stream(s) feeding more than just the DC and support systems, as a later screen allows user to assign a % of each stream to “other”. We suggest leaving this screen as-is, but adding text to clarify which streams are needed.

16 Step 5 - Supplied Fuel We suggest leaving this screen as-is. Humidifiers may use fuel other than electricity.

17 Step 6 - Supplied Steam We suggest leaving this screen as-is. Humidification system may use purchased steam.

18 Step 7 - Supplied Chilled Water This is a suggested new screen. Some data center facilities purchase chilled water from a third party. This screen would be similar to the Supplied Fuel screen, but would ask for chilled water usage rates and costs.

19 Step 8 - Energy Use Distribution The new screen would be similar to the existing screen, but would add a tab for chilled water if the Supplied Chilled Water concept is adopted.

20 Step 9 - Energy Savings Opportunities We suggest keeping same structure for this screen. The “Score Cards” will be new, with questions appropriate to the suggested data center systems: Data Center Loads Controls Electric Distribution Air Side Data Center Cooling Chilled Water Plant

21 Step 9 - Energy Savings Opportunities Example Score Card Questions (for Electric Distribution System): Transformer Efficiency? Number of UPS Modules? UPS Module Capacity? Average UPS Load Factor? etc The answers to the Score Card question will support: Refining the energy use breakouts (at the major system level only). Further limit the list of applicable Actions.

22 Step 10 - Results Quick PEP Case Information Annual Energy Purchases Annual Energy Consumption Potential Annual Energy Savings Suggested Next Steps DC Pro Case Information Data Center Infrastructure Efficiency (DCIE) Annual Energy Purchases Annual Energy Consumption Potential Annual Energy Savings Suggested Next Steps

23 Step 10 – Results, cont.

24 Step 10 – Results, cont. Example List of Actions (for Electric Distribution System) Shut Down UPS Modules When Redundancy Level is High Enough Use High Efficiency MV and LV Transformers Reduce the Number of Transformers Upstream and Downstream of the UPS Locate Transformers Outside the Datacenter Use 480 V instead of 208 V Static Switches (STS) Specify High Efficiency Power Supplies Eliminate Redundant Power Supplies Supply DC Voltage to IT Rack etc

25 We need your input! Purpose of today’s Profiling Tool workshop: Are the inputs reasonable? Are the outputs appropriate and adequate?

26 Thank You! See you at the Profiling Tool Workshop Session.