Energy Management Today – ASubA Sub-Metering … Sub-Metering Case StudyMetering Case Study ......

Energy Management Today –A Sub-Metering Case StudyA Sub Metering Case StudyDan Laurent – Regional Business Developer April 2016

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E D i d i i M t iEnergy Designs driving Metering

• Energy Designs are influenced by:

• End User Requirements

• ASHRAE

• LEED

L l C d• Local Codes

• Utility Requirements

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Restricted © Siemens AG 2016 All rights reserved.

Laurent / EM LP CMP PDS

E D i E d UEnergy Designs – End User

• End Users can have simple or challenging Energy requirements:

• Building Design – multi-tenant [apartments/condo’s.], space vs. power limitations, power distributionpower limitations, power distribution

• Special Systems – Load Side or Supply Side

• Load – Critical, Large Loads, Sensitive, Demand Response, g , , p

• Supply – Solar, Wind, Geo-Thermal, Generator, Micro-Grid

• Operating Energy Cost Goals

• Green Goals

• Managing the above! Information!

• Anything they can dream up…

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E D i ASHRAEEnergy Designs – ASHRAE

• New ASHRAE Standards – 90.1-2010 added Submetering requirements

• The expanded submetering is more stringent that in ASHRAE/USGBC Standard 189 1 for green buildingsStandard 189.1 for green buildings

• Goal of the new standard to focus on buildings where metering is cost effective and will result in energy savings

• Standard (8.4.3 – Electrical Energy Monitoring) states, measure the electrical energy use for each of the following separately:

• Total electrical energy• Total electrical energy

• HVAC Systems

• Interior Lighting• Interior Lighting

• Exterior Lighting

• Receptacle circuits

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Receptacle circuits

E D i ASHRAEEnergy Designs – ASHRAE

The new metering standards are required to be recorded (logged) every• The new metering standards are required to be recorded (logged) every 15 minutes and reported hourly, daily, monthly and yearly

• Exceptions:

• Buildings less than 25,000 sq.ft.

• Tenant spaces less than 10,000 sq.ft

• Residential buildings with less

than 10,000 sq.ft. common area

• Hotels, motels and restaurants

• Dwelling units

• Adoption of the new ASHRAE

Standard around the US

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E D i LEEDEnergy Designs – LEED

• LEED can drive Energy designs and special requirements:

• Energy and Atmosphere

O ti i E P f• Optimize Energy Performance

• On-site Renewable Energy

Enhanced Commissioning• Enhanced Commissioning

• Enhanced Refrigerant Management

• Measure and Verification [M&V]• Measure and Verification [M&V]

• Green Power

• Energy and Atmosphere requirementsEnergy and Atmosphere requirements

[improvement %, measure, verifications]

are difficult to document without metering

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are difficult to document without metering

E D i NEC 2014Energy Designs – NEC 2014

• New exceptions utilzing metering are popping up in the NEC Code. For example,

• Article 220.12 – Lighting Load for Specified OccupanciesArticle 220.12 Lighting Load for Specified Occupancies

• Code states lighting load must be sized per Table 220.12, as a minimum.

• Code is based purely on square footage

• But now, there is an Exception for buildings designed and constructed to local energy codes The actualand constructed to local energy codes. The actual lighting load can be used vs. the NEC table, as long as:

• Lighting loads are metered continuously for load information

• Alarming is set to warn building owner/manager

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LEED BackgroundLEED Background

US G B ildi C il (USGBC) f d i 1993• US Green Building Council (USGBC) formed in 1993• Goal: To define and measure Green Buildings• LEED Pilot Program 1998 and revised in 2000 with Point System• Current rating system is LEED V4• LEED composed of five categories:

• Sustainable Sites• Water Efficiency• Energy and Atmosphere• Materials and Resources• Indoor Environmental Quality

• LEED alternate categories:• Innovation in DesignInnovation in Design• Regional Priority

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LEED Levels of CertificationLEED Levels of Certification

Levels of LEED Certification

Platinum, 80+

Gold, 60-79 Points

Points

Certified, 40-49Points

Silver, 50-59 Points

40 50 60 70 80 90 100 110

Points

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LEED Points available for each CategoryLEED Points available for each Category

LEED Category Possible Points

Sustainable Sites 26 Sustainable Sites 26

Water Efficiency 10

E d At h 35 Energy and Atmosphere 35

Materials and Resources 14

Indoor Environmental Quality 15

Innovation in Design 6

Regional Priority 4

Total Points Possible 110

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Energy and Atmosphere CategoryEnergy and Atmosphere Category

Increase levels of energy performance and reduce environmental and economic impacts associated with excessive energy use.

Prerequisites that must be met:

EA Prerequisite 1 – Fundamental Commissioning of Building Energy Systems

• Verify that energy related systems are installed, calibrated and operatingVerify that energy related systems are installed, calibrated and operating properly

EA Prerequisite 2 – Minimum Energy Performance• Design for energy performance according to defined standards• Design for energy performance according to defined standards –

ANSI/ASHRAE, and simulate or calculate energy performanceEA Prerequisite 3 – Fundamental Refrigerant Management

Zero se of CFC based refrigerants• Zero use of CFC based refrigerants

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EA Credit 1: Optimize Energy Performance: 1-19 Points• Demonstrate a percentage improvement in the proposed building

performance rating compared with the baseline building performance rating.• Points applied on a scale pp• Range 12 % improvement – 1 point .. 48% improvement – 19 points.

EA Credit 2: On-Site Renewable Energy: 1-7 PointsEA Credit 2: On Site Renewable Energy: 1 7 Points• Encourages increasing levels of on-site renewable energy self-supply to

reduce environmental and economic impacts associated with fossil fuel energy useenergy use

• Includes, solar, wind, geothermal, low-impact hydro, biomass and bio-gas• Points applied on a scale

Range 1% 1 point 13% 7 points• Range 1% - 1 point, 13% 7 points.

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EA Credit 3: Enhanced Commissioning: 2 Points• Implement commissioning process activities in addition to the requirements of

EA Prerequisite 1: Fundamentals Commissioning of Building Energy Systems• Contract with a Commissioning Authority, independent of the design and g y, p g

construction team, to lead, review and oversee the completion of all commissioning process activities.

EA Credit 4: Enhanced Refrigerant Management: 2 Points• Intent to reduce ozone depletion and support early compliance with Montreal

protocol while minimizing direct contributions to climate changeprotocol while minimizing direct contributions to climate change.

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EA Credit 5: Measurement and Verification: 3 Points• Develop and implement a measurement and verification (M&V) plan

to evaluate building and/or energy system performance. Install necessary metering equipment to measure energy use. Track

f b i di t d f t t lperformance by comparing predicted performance to actual performance, broken down by component or system as appropriate.

• The International Performance Measurement and Verification Protocol• The International Performance Measurement and Verification Protocol (IMPV) provides guidance on M&V strategies and their appropriate applications for various situations.

• IMPV Strategies should be used in conjunction with monitoring and trend logging of significant energy systems to provide for ongoing accountability of building energy performance.y g gy

• M&V period must cover at least one year of post-construction occupancy. Provide a process for corrective action if the results of

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the M&V plan indicate that the energy savings are not being achieved.


EA Credit 6: Green Power: 2 Points• Encourage the development and use of grid-sourced, renewable energy

technologies on a net zero pollution basis.

• Determine the energy needs of the building and investigate opportunities to engage in a green power contract. Green power is derived from solar, wind, geothermal, biomass or low low-impact hydro sources.geothermal, biomass or low low impact hydro sources.

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Power Distribution Products for Efficiency and SustainabilitySustainability

Siemens Product Focus:

Energy efficiency and sustainability Environmental care Leadership in energy efficient design

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Power Monitoring Solutions

Optimize Energy performance by improving energy efficiency Establish energy usage baselinegy g Additional meter data for more “Enhanced Commissioning” Verify setup and commissioning of building systems Meters can be configured for pulse counting applications to monitor all of yourMeters can be configured for pulse counting applications to monitor all of your

utilities: electric, gas, water, air and steam Potential LEED contribution:

• EA Prerequisite 2 Credits 1 5• EA – Prerequisite 2, Credits 1, 5

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Embedded Metering Solutions

Space-saving solution for tenant metering and sub-metering applications Establish energy usage baseline gy g Allocate all energy usage – down to the smallest loads Sub-billing software enhances Measurement & Verification (M&V)

requirementsrequirements Potential LEED contribution:

• EA – Prerequisite 2, Credits 1, 5

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Power Distribution Products for Efficiency and Sustainability

• The design of Siemens Embedded Micro Metering Module [SEM3] allows

Sustainability

The design of Siemens Embedded Micro Metering Module [SEM3] allows you to efficiently implement metering further into your distribution system

• Space required for metering is significantly reduced

• Size allows metering to be placed within equipmentequipment

• Design flexibility allows metering just the required loads without waste

• High accuracy for billing applications and true allocation of usage

• Size and design allows metering more• Size and design allows metering more circuits more efficiently

• Open communications protocols ease

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integration into EPMS or BAS


Equipment with Integrated Metering

Integrate power monitoring and control to maximize efficiency Multiple devices per section shrinks equipment footprint and reduces electrical p p q p p

space requirements Reduced height options for “Brownfield Redevelopment” sites Potential LEED contribution:Potential LEED contribution:

• EA Credit 1 – optimize energy performance

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Case Study Retirement CommunityCase Study – Retirement Community

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Case Study Retirement Community

Si id d t i th i f th

Case Study – Retirement Community

Siemens provided metering on the main of the switchboard and vital feeders: Main Meter was the PAC4200 Power Meter with

onboard logging and Ethernet communicationsonboard logging and Ethernet communications.This allowed easy installation onto the existing community LAN. Feeder Metering was SEM3 Sub-meter allowing Feeder Metering was SEM3 Sub-meter allowing

cost effective metering of feeders – resident unit loads and common area loads – interior and exterior lighting HVAC etcexterior lighting, HVAC, etc. Metering came pre-wired and installed in the

equipment, so no installation cost, time or space requiredrequired

They metered all 12 buildings.

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For those existing loads meters were easily


For those existing loads, meters were easily retrofitted into or next to the existing electrical equipment. For outside locations at remote buildings, Siemens provided an enclosed bu d gs, S e e s p o ded a e c osedsolution with secure Wireless Ethernet communications. The Meters tracked the power demand and penergy onboard. No lost data if the network goes down. The Meter has gateway capabilities to allow third party Modbus devices to communicate back to the software. The Meter also has digital inputs for more simple status, alarm or pulse input from other devices.

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The Retirement Community had very quick success with the Power


y y qMonitoring System.

• They started tracking their two types of buildings [L shaped and T shaped]. They compared energy usage and found differences that shouldn’t be the case. They found the HVAC controls [installed by two different contractors for two different phases] were not setup the same in some buildings.

• They made “green” lighting improvements in one of the buildings and• They made green lighting improvements in one of the buildings and compared it to the other similar buildings. They had “before and after” data that allowed them to prove that the money were spending was going to payback effectively before blindly doing all the buildings

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to payback effectively, before blindly doing all the buildings.


• They received a utility bill that was over $125,000. higher than any other bill


y y $ , g yreceived to date [in 3+ years]. The utility stated they went from 3.5MW to over 5MW load in one month. Meanwhile the facility was unchanged [physically] during that month. The Siemens metering data stated [p y y] g gotherwise, as well. Further research and digging by the customer found that the utility had changed their socket meter and incorrectly set it up. With the information from the Siemens metering system they could prove their usage prior and during the periods in question were unchanged. They got their money back.

• Finally, they monitored their demand and noticed that the highest peak they fachieved was not at the typical noon-2pm timeframe, as they thought, but

from 7-8am every weekday morning, no matter what time of the year!? Do you know why?

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Case Study International AirportCase Study – International Airport

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Case Study International Airport

A k th Atl t Ai t i l d b l It i th

Case Study – International Airport

As anyone knows, the Atlanta Airport is a large and busy place. It is the World’s largest airport by passenger volume… 101 Million passengers in 2015. The Atlanta Airport was and is expanding and growing very quickly. The demand on the electrical system is growingdemand on the electrical system is growing. The metering used for monitoring the switchgear and electrical system was varied and was not consistent – different manufacturers, different standards over the years during the expansionsthe years during the expansions. Same for the metering that was billing all the tenants of the building – airlines, restaurants, newsstands, lounges, stores, etc. The models and systems to meter the tenants varied and most of it was manually readmeter the tenants varied and most of it was manually read. Siemens worked with the site Facility Engineers, Consultanting Engineers and even the local council to design and build a power monitoring system that would allow the Atlanta Airport to:allow the Atlanta Airport to: Better understand their site load by terminal, area, equipment Better plan equipment expansions and growth by understanding loading Quickly and accurately invoice their tenants improving incoming revenue

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y y p g g

Case Study International Airport

Si id d t i th i f th

Case Study – International Airport

Siemens provided metering on the main of the switchboard on the original equipment. Some gear was by competitors with competitive metering. Siemens provided dozens of SEM3 Sub meter Siemens provided dozens of SEM3 Sub-meter enclosures with over 1200 meter modules [just for one Terminal] This allowed cost effective and easy retrofit to meter the feeders everything from gateretrofit to meter the feeders – everything from gate power, stores, lighting, water heaters, roll up doors, etc.

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Case Study International AirportCase Study – International Airport

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LEED Project ExperienceLEED Project Experience

Si h b i l d i LEED C tifi d®

University of South Carolina – Three dorms tied into a

Siemens has been involved in numerous LEED Certified®

projects across the country. Highlights from a few of them:

yWinPM.net system that reports energy usage by room, floor, and buildings. A kiosk in the lobby allows students and staff to track individual energy consumption.

Constitution Center Washington DC Siemens solutions Constitution Center, Washington DC – Siemens solutions include MV, LV, ACCESS, Panels, Switchboards, Transformers, i-3 Lighting Control.

City Center, Las Vegas – Full scope of electrical distribution. One of the largest LEED Certified projects in the world.

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LEED Project Experience ContinuedLEED Project Experience, Continued

Siemens has been involved in numerous LEED Certified

Virginia Beach Convention Center – Using Siemens meters to t k tilit l d i f ilit d d k d d Fi t

projects across the country. Highlights from a few of them:

track utility loads in facility and reduce peak demand. First convention center in the country to achieve LEED Gold Certification for Existing Buildings.

Howard Hughes Medical Institute – Janelia Farm, VA. Comprehensive power monitoring system.

Southern Illinois University Wind and Solar, Carbondale, IL -Switchboards, panelboards and Siemens inverters along with power monitoring for the Wind and Solar equipmentpower monitoring for the Wind and Solar equipment.

CEMEX Center, MetroNational – Houston, TX. Provided full scope of electrical distribution, pincluding power monitoring and lighting control, for LEED Silver office building.

And many more…

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SEM3

Website

For more SEM3 product information, please visit usa.siemens.com and type in “SEM3” in the search window

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Q ti ?Questions?

Dan LaurentSolutions Business Developercell: 301.529.4521daniel la rent@siemens com

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[email protected]

Thank YouPower Distribution Solutions

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