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Metering vs. Submetering

Metering vs. Submetering. What is submetering? Defined as a metering device installed after the main utility meter Used for capturing facility energy data at a specific location, panel, circuit or user. Delivers granularity of facility energy performance data.

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Metering vs. Submetering

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  1. Metering vs. Submetering • What is submetering? • Defined as a metering device installed after the main utility meter • Used for capturing facility energy data at a specific location, panel, circuit or user. • Delivers granularity of facility energy performance data Submeters –The critical component for accessing facility energy related data

  2. Submetering Applications • Historical Applications • Tenant billing • Cost allocation • Energy management • Growth Applications • Measurement & Verification • Green buildings • Building automation • Carbon footprint analysis • Renewable energy • Power Quality Analysis • Predictive Maintenance

  3. Tenant Billing & Cost Allocation • CB Richard Ellis Report – “Do Green Buildings Make Sense” November 2009 http://catcher.sandiego.edu/items/business/Do_Green_Buildings_Make_Dollars_and_Sense_draft_Nov_6_2009.pdf • A separately metered building, where tenants pay for what they consume, will have lower energy costs by 21% on average even if the Energy Star score is the same. That is, when you pay for what you consume, you become much more frugal. • New York State Energy Research and Development Authority Residential Electrical Submetering Manual (October 1997, revised October 2001) http://www.submeteronline.com/pdf/subman2001.pdf • “the change from master-metering to submetering typically reduces the consumption of electricity in apartments by 10-26 percent.” • U.S. Environmental Protection Agency, in a 2002 paper “Submetering Energy Use in Colleges and Universities: Incentives and Challenges, http://www.oakland.edu/upload/docs/Energy/EPA%20EnergyStar%20Submeter%20Report.pdf • reduce electric demand by 10 percent through demand aggregation. • 10 percent reduction in electricity use was realized

  4. Key Markets • Retro-fit & New Construction • Property Management • Retail - Malls • Industrials • Government & Institutions • MUSH Market • Municipalities • Universities • Schools • Hospitals

  5. Top Industries For Submetering • Building Automation • Federal Government • College & Universities • Owner Occupied / Commercial Facilities • Health Care Facilities • Data Centers • Property Management / Multi-Tenant Facilities • Multi-Family / Apartments • Hotels, Airports & Stadiums • K-12 Schools • Green Buildings

  6. Building Automation • Applications • Metering is low-cost first in point for BMS • Interoperability of protocols • Modbus, BACnet, Lonworks • Peak demand thresholds trigger load management controls • Identify areas of waste • Optimize installation of energy conservation products • Market Drivers • Need for more granular energy info • System Integrators seeing metering on jobs • Growing importance of Measurement & Verification • M&V for HVAC and Lighting

  7. Federal Government • Market Drivers • EPACT 2005 requires all 500,000 federal buildings be metered by 2012 • EISA 2007 requires Federal energy reduction of 30% • Military has Money • Energy independence & security • Growing concern over Carbon Footprint • Applications • Energy Management • Measurement & Verification • Validate ESCO contracts • Multi-tenant facilities • Carbon footprint analysis

  8. College & Universities / K-12 Schools • Application • LEED Points – EA Credits • Optimize Energy Performance • Enhanced Commissioning • Measurement & Verification • Integration to BMS/EMS • Detailed energy accountability • Load shedding • Energy Conservation • Benchmarking & Energy Analysis • Education • College students want visibility to their impact on the planet • Tenant Billing / Cost Allocation • Market Drivers • USGBC LEED Certification • K-12 – 1,705 reg. 255 certified • Higher Ed – 3,050 reg. 531 certified • Must be GREENto get $ GREEN $ • Integration to BAS / EMS • Energy Conservation • Energy Education • Educate them young • Higher Ed – students demand visibility • Tenant Billing / Cost Allocation • College & Universities have dedicated financial allowances

  9. Owner Occupied Commercial Facilities • Applications • LEED Points – EA Credits • Optimize Energy Performance • Enhanced Commissioning • Measurement & Verification • Integration to BMS/EMS • Detailed energy accountability • Load shedding • Energy Conservation • Benchmarking • Identify energy conservation opportunities • Analysis of energy initiatives • Environmental Impact • Carbon footprint • Good corporate citizen • Cost Allocation • Market Drivers • USGBC LEED Certification • Public pressure to be a good corporate citizen • Green Building Policies • State and local governments implementing green building policies • Budget Constraints • Economy straining the bottom line • Owners no longer view electric bill as necessary evil • Energy Conservation • Buildings consumer 72% of the nation’s electricity and 38% of all CO2 • Cost Allocation • Allocate energy usage and cost by department, process or production line

  10. Health Care Facilities • Market Drivers • $6.5 Billion in energy • 2.5 x avg. building use • 2nd most intensive behind food • 24/7 Operation • Energy intensive equipment • Tight budgets • $1 saving is $20 in hospital revenue • $1 savings is $10 in medical office revenue • Applications • Tenant Billing • Doctors offices • X-ray & MRI labs • Emergency rooms • Various clinics • Blood labs • Outsourced food services • Outsourced laundry • Energy Management • Peak Avoidance – MRI • Lighting upgrades • Behavioral Change • VFDs • HVAC/Cooling tower analysis

  11. Data Centers • Market Drivers • 3% of USA electrical consumption • 24/7 facilities – corporate owned and tenant server farms • Power quality analysis to limit downtime • LEED and DOE driving standards in Data Centers • PUE Standard (Power Usage Effectiveness) • Efficiency of energy usage from CPU, cooling, etc. • Sizing of HVAC equipment • Greenhouse gas reporting • Branch circuit monitoring • Application • Power quality analysis to maintain “Up-time” • Multi-tenant server farms, tenant billing • PUE calculations • Breakout HVAC, lighting, plug, racks • Branch circuit monitoring • Determine facility Carbon Footprint • Assist in calculating size of HVAC and rack power

  12. Property Management / Multi-Tenant Facilities • Applications • Recovery of tenant energy cost, encourage energy conservation • Reduce risk related to fluctuation in utility rates • Potential to lower base rent • Mitigate tenant complaints, they control their utility expense • Aggregate portfolio energy cost to negotiate with utility providers • Increase value of property based on green attributes • Market Drivers • Equitable tenant billing • Lower overall operating expenses • Optimize integration with building automation system • Market competitiveness • Utility price optimization • Tenant retention • Green

  13. Hotels, Airports & Stadiums • Mixed-Use Hotels & Condo • Retail first floor, Hotel next 10 floors, Condos at top • Airports • All under construction and expansion • Multi-tenant and energy conservation • ARRA funding • Stadiums • Many new construction projects • Growing importance of Value Engineering • Most metering goes in as retro-fit

  14. Submeter Case Studies

  15. LA Air Force Base Challenge Identify energy saving opportunities Provide verification of savings Energy budgeting Comply with energy reduction mandates Solution Over 50 submeters 21 IDR data accumulators E-Mon Energy software Estimated cost $50k Result Used to verify over $1 million in savings

  16. Bethke Elementary School, CO Challenge 63,000 sq ft facility Gain understanding of energy cost throughout the facility Identify low-cost opportunity for LEED points Solution E-Mon meters monitor lighting, mechanical rooms and kitchen electric panels Meters feed data into BAS system Result First LEED Gold Certified School in the US Meter data supported 50% energy savings from the following actions Indirect evaporative cooling high-efficiency boilers Operable windows 90% day lighting strategies Renewable energy Behavioral change

  17. Comcast Center - Philadelphia Tallest LEED Building in the US – 975 ft 1.25 Million Sq. Ft. 3,000 occupants LEED-CS Gold Rating Over 400 Meters Electric, Gas, Water BTU, Steam, Airflow Meters feed data into two systems E-Mon Energy Software

  18. San Diego Convention Center • Seven city blocks long • 2.6 Million Square Ft. • Recent $216 Million Expansion • Over 10 + meters and software • GOAL • Document power quality events • Cost Analysis of energy consumption for events • Energy Conservation

  19. Washington National Airport • $6.5 Million annual electric bill • Over 1 million square feet • 35 boarding gates • 65 tenant locations • 11,000 Employees • Over 200 points being metered • Approximately $300,000 installed • Estimated Savings from tenant billing 10% • Estimated Savings from cost alloc. 5% • Estimated savings from conservation measures – potential of 10% • Minimize tenant/landlord disputes

  20. Baltimore Ravens Stadium 69,000 Seat Stadium Energy 20% of operating budget 3.6 MW Power Plant Use of Meters: Energy Management Event allocation Allocation between Ravens & Orioles • 69, Over 40 submeters • System upgraded in 2008 • Added 54 Meters • Strategically Metered • Sports Lighting & Scoreboard • Luxury Suites • Kitchen & Air Handlers • Parking lot lighting • Est. Cost - $50,000 • Savings, 10-15% or $750,000

  21. Bill Gates House & His $30,000 Per Month Electric Bill 7 Years to build 45,000 Square Ft. EST. $53 Million Home Theater 18 Hole Putting Green 100 Person Hall Badge System 3 – 800 Amp Panels Electric Engineer Office Installed MMU-12 Software on WIN95 $30,000 / Month Electric Bill Switch from Residential to Commercial Rate

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