1 / 17

Reducing Demand through Efficiency and Services - Impacts and Opportunities in Buildings Sector Mary Ann Piette Deputy,

Reducing Demand through Efficiency and Services - Impacts and Opportunities in Buildings Sector Mary Ann Piette Deputy, Building Technologies Department Director, Demand Response Research Center February 2, 2010. Presentation Overview. Building Energy Context Reducing Energy Use

blanca
Télécharger la présentation

Reducing Demand through Efficiency and Services - Impacts and Opportunities in Buildings Sector Mary Ann Piette Deputy,

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Reducing Demand through Efficiency and Services - Impacts and Opportunities in Buildings Sector Mary Ann PietteDeputy, Building Technologies Department Director, Demand Response Research Center February 2, 2010

  2. Presentation Overview • Building Energy Context • Reducing Energy Use • Technology, Systems and Tools • Buildings and the Grid • Building 90 • Summary and Future Directions

  3. Building Energy Consumption in US • Buildings consume 40% of total U.S. energy • 71% of electricity • 54% of natural gas • No Single End Use Dominates Building sector has Largest Energy Use Fastest Growth Rate

  4. Per Capita Electricity in the U.S. and California (1960-2001) kWh 14,000 Formation of EETD, LBNL 12,000 12,000 U.S. 10,000 8,000 8,000 KWh/person 7,000 California 6,000 Rosenfeld Effect California Policy on Decoupling for Investor Owned Utilities 4,000 2,000 2000 1976 0 1994 1996 1998 1992 1960 1962 1964 1966 1968 1970 1972 1974 1978 1980 1982 1984 1986 1988 1990

  5. Dimmable; Addressable; Affordable Examples of Building Systems R&D at LBNL • Minimizing External Loads • Dynamic Facades, Windows, Passive Venting • Cool Roofs • Minimizing Internal Loads • Lighting Controls • Miscellaneous Plug Loads • Duct Sealing • Data Center Efficiency • Evaluating and Managing Energy Use • Benchmarking, Commissioning • Monitoring, Simulation and Modeling • Indoor Environmental Quality Metrics

  6. If Buildings Were Engineered… Commissioning (Cx) for Energy Efficiency Would be Common Owner needs Design target Cx parameter Pre-functional test Testing, adjusting and balancing Continuous monitoring Periodic evaluation Program Phase Design Phase Construction Phase Acceptance Phase Post- Acceptance Phase Design document O&M manual Design review Cx plan Functional test O&M manual review O&M training Final Cx report

  7. Energy Use Needs to be Visible –the Prius Effect Before Baseline: 465 kW • Equipment runs when not needed, when on… often not efficient • Continuous monitoring can show waste with engaged people • Simple electric load shape provides information – what is design intent? • R&D led to Statewide Monitoring Based Commissioning Program • 1st 24 California MBCx spent $2.9 million, costs $1.00/ft2 & 2.5 year payback After Night Load: 235 kW

  8. Linking Efficiency with the Grid and Demand Response (DR)

  9. Manual Demand Response - Common Practice

  10. Reliable, Secure, Persistent Automation with Open Automated DR Communications (OpenADR) Creating Emerging International Smart Grid Standard PG&E DR Automation Server Embedded Client in New Controls

  11. Enabling Demand Side Load Flexibility To provide a more reliable, cost-effective low-carbon grid • Enable buildings to listen to common signals • Evaluate time scales of flexible loads, pre-cool • Use codes and standards • Develop native low-power modes • More toward model-predictive control

  12. Managing the Grid and Modeling the Building Middle-ware that exchanges and synchronizes data as (simulation-)time progresses HVAC & controls Modelica building energy EnergyPlus controls Simulink building energy TRNSYS airflow Fluent controls & data analysis MATLAB Virtual Controls Testbed wireless networks Ptolemy II lighting Radiance real-time data www+xml building automation BACnet building energy ESP-r hardware in the loop implemented funded in proposal in discussion 12

  13. Dramatic US Reductions Needed Dramatic Global Reductions Even Harder China India 8.5%/yr growth New: 80% reduction Existing: 50% reduction 1 Quad = 1015 Btu,1.055 Exajoule (EJ) or 1.055 × 1018 J

  14. Building 90’s Public Energy Information System https://my.pulseenergy.com/dashboards/EETD New tool for continuous monitoring and diagnostics

  15. Electricity Load Distribution and Meter Locations

  16. Responsive Buildings Occupant Productivity Model-driven Control Integrated Operating System Lighting & Misc Facade Natural Environment Sustainable Grid Pervasive Energy Monitoring HVAC

  17. Summary and Future Directions - Need to Accelerate Innovation, Mobilize Science • Need new low-energy components, storage, efficient equipment • Need for continuous measurement, modeling, uncertainty analysis, decision tools, new metrics • Need to see waste – make performance visible • Need improvements while improving quality of indoor environment with a balance of technology, markets, policy, and business processes

More Related