Phoenix Convention Center Phoenix, Arizona Building Performance Using DOE’s Energy Modeling Tools For Retrofit Planning Using DOE’s Energy Modeling Ecosystem for Retrofit Analysis Andrew Parker Commercial Buildings Controls and Analysis Tools Team August 13, 2015

Energy Exchange : Federal Sustainability for the Next Decade Why Energy Modeling? Standardized calculation methods Assumptions documented Captures interactions between ECMs All parts of building (lights, HVAC, envelope, etc.) All in one place A custom calculator for your building!

Energy Exchange : Federal Sustainability for the Next Decade Uses for an Energy Model Evaluate ECMs Verify/challenge vendor claims ESPC due diligence Analysis for appropriated funds Standardized nature makes review easier Compare against bills – find issues Remember: it is a tool to help you!

Energy Exchange : Federal Sustainability for the Next Decade Where to get an Energy Model If LEED, one should exist already Investment grade energy audit Make one! – many free software tools

Energy Exchange : Federal Sustainability for the Next Decade DOE Energy Modeling Ecosystem OpenStudio is an open source platform that bridges the gap between capable but complex engines and the easy-to- use applications that drive energy savings. Simulation Engines “Operating System” Applications

Energy Exchange : Federal Sustainability for the Next Decade Data for the Ecosystem The Technology Performance Exchange (TPEx) and Building Component Library (BCL) provide the raw data that powers the ecosystem. Utility Pilots Manufacturer Data

Energy Exchange : Federal Sustainability for the Next Decade 7 The Technology Performance Exchange Web-based repository of product-specific performance data Engineering analysis → minimum parameters for robust analysis Data provenance tracked: Who, How, and When Automatically creates and stores OpenStudio components in the Building Component Library

Energy Exchange : Federal Sustainability for the Next Decade The Building Component Library An Internet-connected source of building energy modeling data: Enables drag-and-drop modeling for quick technology evaluation Provides consistent, detailed inputs to drive decision-making Searchable readily available within applications The BCL is key to OpenStudio’s extensibility

Energy Exchange : Federal Sustainability for the Next Decade The BCL: A Source for Reusable Input Data Components: Assembled to form complete energy models Include constructions, lights, schedules, weather data, PV components, and more

Energy Exchange : Federal Sustainability for the Next Decade The BCL: Fast and Reliable Measure Application Measures: Contain logic needed to transform an energy model easily and consistently Can be applied singly or as part of a parametric analysis

Energy Exchange : Federal Sustainability for the Next Decade Knowledge is passed one-to-one: Inconsistent, not scalable, not transparent Watch closely. Modeling Today Simulation Program

Energy Exchange : Federal Sustainability for the Next Decade A better way to share modeling techniques. Help! What We’ve Needed Simulation Program ?

Energy Exchange : Federal Sustainability for the Next Decade OpenStudio Measure: Do something to model OpenStudio Measures are small scripts that transform building models quickly and easily Model (Before) It Exists! – OpenStudio Measures Model (After)

Energy Exchange : Federal Sustainability for the Next Decade Daylighting Measure Example OpenStudio Measures Night Setback Measure Add Heat Recovery Measure

Energy Exchange : Federal Sustainability for the Next Decade Measures Workflow Example Baseline Model Online Database of Measures OpenStudio Parametric Analysis Tool (PAT) Life cycle analysis identifies cost-effective measures

Energy Exchange : Federal Sustainability for the Next Decade Vision – Energy Model as FM Tool Design Include efficiency in building requirements Use model to “prove out” design Lastly - submit for LEED Continuous Commissioning Compare model to actual – find issues Compliance Quickly evaluate ECMs ID’d during Audits Living asset Update as building changes

Energy Exchange : Federal Sustainability for the Next Decade Questions?