DATA CENTRE DESIGN AND

Transcription

1 SPUSC 2008 SOUTH PACIFIC USER SERVICES CONFERENCE DATA CENTRE DESIGN AND ENERGY INITIATIVES Presented by Jarrad Clift Electrical Engineer Greenstar Accredited

2 Presentation Content Data Centres General Planning a new Data Centre Capacity Heat Load Space Day 1 and Ultimate t Energy Usage in Data Centres PUE Carbon Emissions Monitoring Facilities Energy Initiatives Co generation and Tri Generation Free air cooling Questions

3 General Data centres are critical to the ongoing reliability and expandability of an organisations Data centres are critical to the ongoing reliability and expandability of an organisations processes and operations.

4 Planning a New Data Centre Capacity Considerations IT Equipment Heat Loads Expansion Forecasting Expandability & Modularity Uninterruptible Power Supply (UPS) Systems Air Conditioning Systems

5 Planning a New Data Centre Capacity Considerations Space Number of Racks Delivery of Cooling Plant Equipment New Concepts Server Virtualisation Techniques Third Party Providers

6 Energy Usage in Data Centres Responsible for around 2.5% of global energy consumption Global demand for data centres continues to increase Energy costs increasing Carbon Trading Scheme

7 Energy Usage in Data Centre Contribution to Energy Usage Typical Data Centre 8% Power System 12% Miscellaneous Losses 36% Cooling 44% IT Equipment

8 Energy Usage in Data Centres Power Usage Effectiveness (PUE) = 1.2 State of the Art = 1.5 Improved Operations = Historical > Poor

9 Energy Usage in Data Centres Cost Analysis Sensitivity of Annual Power Costs to PUE Rating Data Centre IT Equipment Load is 1MW PUE Annual Power Usage Annual Power Bill (at say $0.15/kWh) GWh $180, GWh $225, GWh $300, GWh $375, GWh $450,000.00

10 Energy Usage in Data Centres Cost Analysis Sensitivity of Annual Power Costs to Utility Supply Charges Data Centre IT Equipment Load is 1MW PUE = 2.0 (Average) Electricity Unit Price Annual Power Bill $0.15 kwh $ 300, $0.20 kwh $ 400, $0.25 kwh $ 500, $0.30 kwh $ 600, $0.50 kwh $ 1,000, Energy UsageisImportant!!

11 Energy Usage in Data Centres Carbon Footprint CO 2 Emissions per MWh of Electricity South Australia Approximately 0.98 tonne CO 2 per MWh generated Data Centre Comparison Design 1 IT Equipment Load = 1MW PUE = 1.5 1MW of IT Equipment = 8.76 GWh per Annum Carbon Footprint = 8.76 GWh x 1.5 (PUE) x 0.98 Design 2 IT Equipment Load = 1MW PUE = ,000 Tonnes of CO 2 per Annum 1MW of IT Equipment = 8.76 GWh per Annum Carbon Footprint = 8.76 GWh x 2.0 (PUE) x ,000 Tonnes of CO 2 per Annum

12 Energy Initiatives Co Generation The simultaneous production of electric power and heating from a single fuel source. Efficiencies Gas Fired : 30% Co Generation improves efficiency of power usage Capturing waste heat Widely accepted in the commercial market place Examples; Steam Generation, Hot Water Avoids losses associated with transportation of electricity

13 Energy Initiatives Tri Generation The simultaneous production of electric power, heating and cooling from a single fuel source. Tri Generation Schematic

14 Energy Initiatives Worked Example Computer Room Assumptions IT Equipment Load = 300kWe PUE = 1.5 TtlDt Total Data Centre Load = 450 kwe Electrical Supply Charge = $0.15 kwh Gas Supply Charge = $0.013 MJ Gas Fired Generator Efficiency 30% Air Conditioning Equipment = 300 kwr = 60 kwe (Coeff Perf. = 5) Mains Only Supply = 450 kwe Tri Generation Generation System Installation = 450 kwe 60 kwe (Almost) =390 kwe

15 Energy Initiatives Worked Example Electrical Power Consumed (per Annum) Mains Power Supply Only 450 kw x 8760 = 3.9 GWh Tri Generation System 0 kwh Gas Consumption (per Annum) 0 MJ 3.2 GJ x 8760 = 31,500 GJ Total Cost (PA) $585, $409, Carbon Emissions (PA) 3,822 Tonnes of CO 2 1,575 Tonnes of CO 2 Cost Saving $175, per Annum More than 50% reduction in CO 2 Emissions Capital Cost Capital Cost of Tri Generation Plant Capital Cost Payback Period 7.8 years $3, per kwe = $3, x 390 kwe $1.365 M

16 Energy Initiatives Free Air Cooling The ability to remove heat from a space without the use of the refrigeration process Air Conditioning Units: >50% of energy use if for refrigeration process Adelaide Climate 3,300 hours ( 35% of year) of conditions suitable for free air cooling Direct Free Air Indirect Free Air

17 Energy Initiatives Free Air Cooling Design Example IT Equipment Heat Load = 1 MWe Air Conditioning Equipment Load 330 kwe (Coeff Perf. = 3) Contribution of Refrigeration Process 200 kwe (60%) Availability of Free Air Cooling Operation (Adelaide) Energy Saving = 3,300 hours = 3,300 x 200 kwe = 660,000 kwh per Annum Cost Saving = 660,000 kwh x $0.15 $100,000 per Annum Carbon Emission Reduction = 660 MWh x Tonnes of CO 2 per Annum

18 Summary Correct planning and forecasting for the design requirements of a data centre ensures that the performance requirements are achieved IT and Facility Managers working in a collaborative approach will optimise data centre deliverables Energy efficient design solutions are available Tri Generation and Free Air Cooling Solutions greatly reduce operating costs and energy usage Research, planning and delivery!