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High Performance High Performance Building Congressional Building Congressional
Caucus CoalitionCaucus Coalition
December 14, 2010December 14, 2010
Thomas H. Phoenix, P.E. LEED APThomas H. Phoenix, P.E. LEED AP
What is ASHRAE?What is ASHRAE?
The American Society of Heating, The American Society of Heating, Refrigerating and Air Conditioning Refrigerating and Air Conditioning
EngineersEngineers
What is ASHRAE?What is ASHRAE?55,000 Members
175 Chapters
120 Countries
ASHRAE Mission ASHRAE Mission StatementStatement
“To advance the arts and sciences of heating, ventilating, air conditioning and
refrigerating to serve humanity and promote a sustainable world”
Building Performance MetricsBuilding Performance Metrics Steering Committee Steering Committee
Performance Measurement Protocols Performance Based Energy Benchmarks Carbon Emissions Calculation Tools High Performance Buildings Database/DASH PMP Best Practices Guide
“You will never know if you got there if you don’t know where you are going..”
Building Performance MetricsBuilding Performance Metrics
The ChallengeThe ChallengeWe need a standardized, consistent set
of measurement protocols to:o Substantiate claims of performanceo Facilitate appropriate, rigorous, and
reliable comparison of measured performance
o Provide feedback to designers and building operators
Why is it measured? Why is it measured? The objectiveThe objective What is to be measured and how is it to What is to be measured and how is it to
be measured? be measured? The metricThe metric What are the appropriate benchmarks? What are the appropriate benchmarks?
Performance Evaluation/BenchmarkingPerformance Evaluation/Benchmarking
Performance Measurement Protocols for Commercial Buildings
Published as ASHRAE Special Publication in May 2010Published as ASHRAE Special Publication in May 2010
Measured ProtocolsMeasured Protocols
EnergyEnergy Potable Water UsagePotable Water Usage Indoor Environmental QualityIndoor Environmental Quality
o Thermal ComfortThermal Comforto Lighting/DaylightingLighting/Daylightingo Indoor Air QualityIndoor Air Qualityo AcousticsAcoustics
Level of Protocol MeasurementLevel of Protocol Measurement
Level 1 – Basic (Indicative) Level 2 – Intermediate (Diagnostic) Level 3 – Advanced (Investigative)
Objectives Characterize whole-building energy use and cost Establish energy performance ranking Estimate energy savings potentials
Metrics Catalog of basic building characteristics Annual whole-building energy use by source Annual energy use and cost indices (per unit area)
Benchmarks Energy Star rating (by building type, climate zone) Energy Performance of Buildings Directive rating
Objectives Characterize and rate whole-building water use/ cost Aggregate uses deposited in wastewater and those
not deposited in wastewater (e.g. landscaping) Identify water savings potentials
Metrics Monthly and annual metered water use and cost Monthly and annual water use and cost indices (per
unit area and occupant) Benchmarks
DOE/FEMP indices by building type European indices by building type
Objectives Determine and rate occupant satisfaction Identify thermal comfort problems to be corrected
Metrics Evaluate complaint logs Conduct occupant and operator surveys Spot measure temperature, rh, MRT, airspeed
(optional - to determine causes of problems) Benchmarks
CBE or BUS survey databases
Objectives Determine and rate occupant satisfaction Observe condition of building and HVAC system Evaluate compliance with ASHRAE Standard 62.1
Metrics Evaluate complaint logs, conduct occupant surveys Determine if OA quality is poor (NAAQ Standards) If combustion sources, spot measure CO levels Measure outside air flows (CO2 levels as indicator)
Benchmarks CBE or BUS survey databases Standard 62.1 OA flows and distribution
Objectives Determine and rate occupant satisfaction Identify problems to be corrected
Metrics Conduct occupant and operator surveys Evaluate lighting checklist to identify problems Spot measurements of illuminance
Benchmarks CBE or BUS survey databases IESNA and/or EN 12464 illuminance levels by space
type
Continuing EffortsContinuing Efforts ASHRAE Building EQ Labeling Program Performance Metrics Best Practices Guide –
est. late 2011 Building Energy Modeling Conference –
April 4-6, 2011 Web-based Educational Tools – ASHRAE
Headquarters, etc.
Questions?Questions?