building analytics: energy information systems

www.esource.com || © 2013 E Sourcewww.esource.com Thursday, October 17, 2013

Building Analytics

Energy Information Systems

Andrea Salazar

Senior Research Associate, E Source

Rocky Mountain Association of Energy Engineers

14th Annual Energy Forum

www.esource.com || © 2013 E Source2

Presentation Outline

What are Energy Information Systems?

What products are being offered?

What research is being done on these products?

What level of energy savings are these tools enabling?

Dive into a few tools!


Energy Information Systems

Also known as energy analytics platforms, building dashboards, fault detection & diagnostics, ongoing commissioning, or smart building systems

Capabilities vary widely Not always a part of a building automation system (BAS)

Can sit on top of BAS/BMS or can be fed data directly from utility bills, sensors, meters, etc.

Source: CKSinfo.com


How They Work


There Are a Lot to Choose From!


Research Can Help Lawrence Berkeley National Laboratory (LBNL) work:

Framework (PDF) defining EISs and a matrix (XLS) categorizing some tools

Case studies (PDF) University of California at Merced LBNL office building Walmart Sysco

Current work assessing costs and benefits PECI created an updated inventory of 14 tools with a

focus on measurement & verification protocols/capabilities

http://eis.lbl.gov/

http://eis.lbl.gov/pubs/lbnl-2899e.pdf

http://eis.lbl.gov/pubs/lbnl-2899e.xls

http://eis.lbl.gov/pubs/beis-case-studies.pdf

http://neea.org/docs/default-source/reports/inventory-of-commercial-energy-management-and-information-systems-for-m-v-applications.pdf?sfvrsn=6&goback=.gmr_4719725.gde_4719725_member_5794111915932270595#%21


But Do They Save Energy? Vendors claim up to 30 percent energy reduction LBNL case studies:

Source: CKSinfo.com

Site EIS used Action/observation Energy impact

UC Merced Automated Logic Corp.’s WebCTRL

Excessive overnight gas use due to nonzero pressure at steam boilers

30% reduction in average daily gas use; avoided cost of $4,500/month

Sysco NorthWrite’s Energy WorkSite

Retrocommissioning and refrigeration tune-ups

36% reduction in site energy use

UC Berkeley

No central EIS Lighting retrofit and ventilation schedule change

30% reduction in whole-building energy use

Depends on: Skill/motivation/ability/authority of users Building type Building performance before energy analytics

© E Source

http://www.automatedlogic.com/product/webctrl/

http://www.automatedlogic.com/product/webctrl/

http://www.northwrite.com/energyworksite.asp


Diving Into Some Specific Tools

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Offering from Cascade Energy Engineering company

offering audits and tune-ups since 1993

Distinguishing features Ability to normalize using

large number of variables

Ability to track other resources, including diesel, water, and sewer


Sensei


More of a controls company that has an analytics module

Distinguishing features: Intraday energy and

demand forecasting Multiple offerings,

including controls, smart thermostats, dimmable light-emitting diode systems, and power meters


Grid Navigator


Andrea Salazar

Senior Research Associate, E Source

303-345-9189 [email protected]

For More Information

mailto:[email protected]

building analytics: energy information systems

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