Advanced Metering and Energy Information Systems · Persistence in Efficiency ... Building...
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Advanced Metering and Energy Information Systems ACEEE Market Transformation, 2009 Dan Harris New Buildings Institute
Transcript of Advanced Metering and Energy Information Systems · Persistence in Efficiency ... Building...
Advanced Metering and Energy Information Systems
ACEEE Market Transformation, 2009Dan HarrisNew Buildings Institute
Advanced Metering and Basic EIS
Advanced Metering and Basic EIS DefinitionsCostsHow Does an EIS make a differenceResearch and Market Transformation
NBI - Roles
Best practices for small to medium commercial buildings
Core Performance GuideAdvanced Lighting GuidelinesBuilding codes analysis
Measured performance focusMeasured performance study, 2007
NBI - Advanced Metering Motivations
Persistence in EfficiencyPermanent monitoring systems to increase the effectiveness of retrocommissioning
Evidentiary Design DataModeled performance is not always an indicator of future resultsCollecting bills is labor intensive
Advanced Building Performance MetricsPerformance based building programs and codes?Advanced benchmarking
Measured Performance Study, 2007
ActualProposed
100%
50%
0%
-50%
-100%
Savi
ngs
as%
ofB a
selin
e
25% 28%
These buildings appear to usemore energy than the code baseline!
Energy Information System
Basic Energy Information System
Basic EISAdvanced Meter(s)Optional additional meters and sensorsDAS/GatewaySoftware Tools
Integration Platform - MiddlewareBuilding Automation System (BAS) Interface
SoftwareHardware - Sometimes
Advanced Meters – Energy Management
Meter that reports, or can be interrogated, at frequent intervals
Utility-InstalledAMI/AMR Meters
4.2% of non-residential are AMI*Some states already require for minimum kWIssues:
Getting data can be difficultSometimes monthly chargeBoth Gas/Electric?
Owner-InstalledOff-the-Shelf
Many available optionsInstallation cost variable
Utility UpgradePulse output
Where is AMI/AMR?
Owner-Installed Advanced Meter Cost
Type Cost ($) Installation (hours)
Total ($)
Electric 350 - 750 4 ~ 800
Natural Gas 200 – 500 4 – 8 ~ 950
Gas Dial Reader 200 1 ~ 275
Utility Pulse Output
0 – 2000 + - est. 1000
Owner-Installed Basic EIS Costs
Data Acquisition SystemWired
Direct wiringData cable
WirelessWireless meshPoint-to-point
GatewayWired
PhoneLAN
WirelessWi-FiCellularWi-Max
Software
Various Sophistication LevelsBasic
Download dataView time series
AdvancedBaseliningBenchmarking – Energy Star and Internal PortfolioWeather normalizationTime-series visualization tools
Free with purchase
Basic EIS DAS/GatewayWith Service Monitoring and Reporting
Basic
Basic
Basic
Advanced
Total Basic EIS Cost (Hardware Only)
$2500 - 4000 $11 billion – $17.6 billion
Where is EIS?
Larger buildingsStudies show Monitoring Based Commissioning –Continuous Commissioning improve persistence.
Smaller buildingsUtility territories with AMI/AMR and web portalChains - Retail, hospitality, governmentGovernment Buildings
Mandated by state & federal legislation “…where practicable”Annual energy spend at least $40,000
Why have an EIS?Emerging Motivations
Automated benchmarking EPA Portfolio ManagerEnergy Star Benchmarking Requirements
California AB1103USGBC measured performance
Announced without detailsVoluntary carbon trackingDemand response participation
NBI Research
Uses of Basic EISAutomated Inverse modeling – enhanced Baselining
Reverse simulation using knowledge of major building system types
Isolating Core and Shell and system loads4 commercial pilots new construction in Seattle
Programmatic evaluationPackaged efficiency measures with Basic EIS in 20 – 40 pilot projectsTenant vs. owner feedback
Future Directions
PolicyBuilding program incorporation of measured performance via automated data collection (EIS)
USGBC et al.California AB1103 style benchmarking requirements
ResearchNeed to address smaller buildings
Small – Display and FDDMedium – Basic EIS with system load normalizationLarge – Integration Platform – Energy Monitoring and Reporting
