Adam HingeSustainable Energy Partnerships

A2SE Summer StudyA2SE Summer Study28 February, 2013

Why Rate Building Energy Performance?◦ Purpose; Hypothesis◦ Other Industries Experience with

P f R iPerformance Rating◦ Desired Results/ExpectationsO i f Diff t R ti S h Overview of Different Rating Schemes◦ Design/Build/Operate

Asset/Operational◦ Asset/Operational Resources

Graphic from CoStar Group

Building Energy Rating provides information about the energy performance of a building, giving better information to decision

kmakers◦ Compares a building to its peers; compares how

the energy performance changes over timethe energy performance changes over time◦ Recognition for design/construction team

Rating Tools can identify and diagnose performance problems

Hypothesis: Informed consumers should ypmake better, (more) rational decisions

Added Value of ENERGY STAR Labeled Commercial Buildings in the U.S. Market

“…However it was not only older buildings that were found to be energy inefficient. Despite opening only six years ago, London's City Hall received an E grade. City Hall was described by Foster & Partners, which designed it, as a "virtually non-polluting public building".”

Lots of Issues:◦ Technical Validity◦ Market Traction◦ Recognition Value◦ Valuation Metric

Not simple; no “one size fits all”

From “Energy Performance Certificates across Europe,” at www.bpie.eu

Energy Ratings: Broader E i t l Energy Ratings:

ENERGY STAR, Energy Guide

Environmental Ratings:

ENERGY STAR, Energy Guide

Just Energy, not other attributes like Water IAQ

LEED, BREEAM, NABERS, CASBEE, attributes like Water, IAQ,

etc., ,

growing number of others

May include energy ratings as one componentcomponent

Design (Concept, planning approvals, drawings)◦ Low cost, high expertise intervention possible◦ Needs EE integrated into design software

ld ( d Build (Construction, commissioning and refurbishing)◦ Can enhance or undermine the EE of the designCan enhance or undermine the EE of the design◦ Need strong education and compliance measures

Occupy (Post-construction, Ownership or tenancy)◦ Timeframe of building use = potentially huge

cumulative emissions◦ EE of the Asset or EE of the User how do we measureEE of the Asset or EE of the User, how do we measure

it?15

Investors will want Investors will want different metrics than buildingthan building operatorsH d t t “ Hard to get “one size fits all”

From “Building Labels vs. Environmental Metrics;” RREEF R l E t t fRREEF Real Estate; www.rreef.com

“Asset” Ratings based on calculation of how Asset Ratings, based on calculation of how the building could optimally operate

“Operational” Rating - also called a p g“Measured” Energy Rating - based on actual measured annual use

From “Commercial Building Energy Asset Score – Program Overview & Technical Protocol;” prepared for the US Dep’t of Energy by PNNL, Dec 2012

Lots of facets:◦ Technical Options◦ Public Disclosure?◦ Training◦ Training◦ Data Management◦ Compliance…p

Other Considerations◦ Voluntary/Mandatory◦ Resources

IEA Policy Pathways: Energy Performance Certification of Buildings (2010)

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Growing Number of web resources; good starting link: www.buildingrating.org

Potential new initiative through Int’l P t hi f EE C tiPartnership for EE Cooperation