Publications

Books and book chapters

• Michael Wetter.
  A View on Future Building System Modelling and Simulation.
  In Building Performance Simulation for Design and Operation. Expanded 2nd Edition.
  Jan L. M. Hensen and Roberto Lamberts (editors), Routledge, UK, ISBN: 9781138392199, 2019.
  
• Michael Wetter and Christoph van Treeck.
  IEA EBC Annex 60: New Generation Computing Tools for Building and Community Energy Systems.
  ISBN 978-0-692-89748-5, 2017.
• Michael Wetter.
  A View on Future Building System Modeling and Simulation.
  In Building Performance Simulation for Design and Operation.
  Jan L. M. Hensen and Roberto Lamberts (editors), Routledge, UK, ISBN: 978-0-415-47414-6, 2011.
  Also available as LBNL Technical Report LBNL-4792E.pdf.
  

Journal papers

• Michael Wetter and Matthias Sulzer.
  A call to action for building energy system modelling in the age of decarbonization.
  Journal of Building Performance Simulation. P. 1-11. 2023.
• Nari Yoon, Leslie Norford, Michael Wetter and Ali Malkawi.
  Development of window scheduler algorithm exploiting natural ventilation and thermal mass for building energy simulation and smart home controls.
  Journal of Building Engineering, 82, 2024.
• Matthias Sulzer, Michael Wetter, Robin Mutschler and Alberto Sangiovanni-Vincentelli.
  Platform-based design for energy systems.
  Applied Energy, 352, 2023.
• Michael Wetter, Kyle Benne, Hubertus Tummescheit and Christian Winther.
  Spawn: coupling Modelica Buildings Library and EnergyPlus to enable new energy system and control applications.
  Journal of Building Performance Simulation. P. 1-19. 2023.
• Milica Grahovac, Paul Ehrlich, Jianjun Hu and Michael Wetter.
  Model-based Data Center Cooling Controls Comparative Co-design.
  Science and Technology for the Built Environment, 30(4), P. 394–414, 2023.
• Alessandro Maccarini, Artem Sotnikov, Tobias Sommer, Michael Wetter, Matthias Sulzer and Alireza Afshari.
  Influence of building heat distribution temperatures on the energy performance and sizing of 5th generation district heating and cooling networks.
  Energy, 275, July, 2023.
• Antoine Gautier, Michael Wetter and Matthias Sulzer.
  Resilient cooling through geothermal district energy system.
  Applied Energy, 325, November, 2022.
• Donghun Kim, Zhe Wang, James Brugger, David Blum, Michael Wetter, Tianzhen Hong and Mary Ann Piette.
  Site Demonstration and Performance Evaluation of MPC for a Large Chiller Plant with TES for Renewable Energy Integration and Grid Decarbonization.
  Applied Energy, 321, September, 2022.
• Kathryn Hinkelman, Saranya Anbarasu, Michael Wetter, Antoine Gautier and Wangda Zuo.
  A Fast and Accurate Modeling Approach for Water and Steam Thermodynamics with Practical Applications in District Heating System Simulation.
  Energy, 254, Part A, September, 2022.
• David Blum, Zhe Wang, Chris Weyandt, Donghun Kim, Michael Wetter, Tianzhen Hong and Mary Ann Piette.
  Field demonstration and implementation analysis of model predictive control in an office HVAC system.
  Applied Energy, 318, July 2022.
• Kathryn Hinkelman, Jing Wang, Wangda Zuo, Antoine Gautier, Michael Wetter, Chengliang Fan and Nicholas Long.
  Modelica-based modeling and simulation of district cooling systems: A case study.
  Applied Energy, 311, April 2022.
• Kun Zhang, David Blum, Hwakong Cheng, Gwelen Paliaga, Michael Wetter and Jessica Granderson.
  Estimating ASHRAE Guideline 36 energy savings for multi-zone variable air volume systems using Spawn of EnergyPlus.
  Journal of Building Performance Simulation, 15(2), p. 215-236, 2022.
• Michael Wetter, Paul Ehrlich, Antoine Gautier, Milica Grahovac, Philip Haves, Jianjun Hu, Anand Prakash, Dave Robin and Kun Zhang.
  OpenBuildingControl: Digitizing the control delivery from building energy modeling to specification, implementation and formal verification.
  Energy, Volume 238, Part A, January 2022.
• Matthias Sulzer, Sven Werner, Stefan Mennel and Michael Wetter.
  Vocabulary for the fourth generation of district heating and cooling.
  Smart Energy, Volume 1, 2021.
• David Blum, Javier Arroyo, Sen Huang, and Ján Drgoňa, Filip Jorissen, Harald Taxt Walnum, Yan Chen, Kyle Benne, Draguna Vrabie, Michael Wetter and Lieve Helsen
  Building optimization testing framework (BOPTEST) for simulation-based benchmarking of control strategies in buildings.
  Journal of Building Performance Simulation, 14(5), p. 586-610, 2021.
• Ján Drgoňa, Javier Arroyo, Iago Cupeiro Figueroa, David Blum, Krzysztof Arendt, Donghun Kim, Enric Perarnau Ollé, Juraj Oravec, Michael Wetter, Draguna L. Vrabie, Lieve Helsen.
  All you need to know about model predictive control for buildings.
  Annual Reviews in Control, 2020.
• Tobias Sommer, Matthias Sulzer, Michael Wetter, Artem Sotnikov, Stefan Mennel and Christoph Stettler.
  The reservoir network: A new network topology for district heating and cooling.
  Energy, 199, 2020.
  Also available as pre-print.
  
• Yangyang Fu, Wangda Zuo, Michael Wetter, Jim W. VanGilder, Xu Han and David Plamondon.
  Equation-Based object-oriented modeling and simulation for data center Cooling: A case study.
  Energy and Buildings, 186, p. 108-125, 2019.
  
• David H. Blum, Krzysztof Arendt, Lisa Rivalin, Mary Ann Piette, Michael Wetter and Christian T. Veje.
  Practical factors of envelope model setup and their effects on the performance of model predictive control for building heating, ventilating, and air conditioning systems.
  Applied Energy, 236, p.410-425, 2019.
  
• Thierry S. Nouidui, Jonathan Coignard, Christoph Gehbauer, Michael Wetter, Jhi-Young Joo and Evangelos Vrettos.
  CyDER - an FMI-based co-simulation platform for distributed energy resources.
  Journal of Building Performance Simulation, 12(5), p. 566-579, 2019.
  
• Filip Jorissen, Michael Wetter and Lieve Helsen.
  Simplifications for hydronic system models in Modelica.
  Journal of Building Performance Simulation, (11)6, p. 639-654, 2018.
  
• Wei Tian, Thomas Alonso Sevilla, Dan Li, Wangda Zuo and Michael Wetter.
  Fast and self-learning indoor airflow simulation based on in situ adaptive tabulation.
  Journal of Building Performance Simulation, 11(1), p. 99-112, 2018.
  
• Felix Bünning, Michael Wetter, Marcus Fuchs and Dirk Müller.
  Bidirectional low temperature district energy systems with agent-based control: Performance comparison and operation optimization.
  Applied Energy, Vol. 209, p. 502-515. 2017.
  Also available as LBNL Technical Report LBNL-2001090.
  
• Brahm van der Heijde, Marcus Fuchs, Carles Ribas Tugores, Gerald Schweiger, Kevin Sartor, Daniele Basciotti, Dirk Müller, Christoph Nytsch-Geusen, Michael Wetter and Lieve Helsen.
  Dynamic equation-based thermo-hydraulic pipe model for district heating and cooling systems.
  Energy Conversion and Management, 151:158-169, 2017.
• Alessandro Maccarini, Michael Wetter, Alireza Afshari, Göran Hultmark, Niels C. Bergsøe and Anders Vorre.
  Energy saving potential of a two-pipe system for simultaneous heating and cooling of office buildings.
  Energy and Buildings, (134):234-247, 2017.
  Also available as preprint.
• Wangda Zuo, Michael Wetter, Wei Tian, Dan Li, Mingang Jin and Qingyan Chen.
  Coupling indoor airflow, HVAC, control and building envelope heat transfer in the Modelica Buildings library.
  Journal of Building Performance Simulation, 9(4), p. 366-381, 2016.
  
• Spyros Chatzivasileiadis and Marco Bonvini and Javier Matanza and Rongxin Yin and Thierry S. Nouidui and Emre C. Kara and Rajiv Parmar and David Lorenzetti and Michael Wetter and Sila Kiliccote.
  Cyber-Physical Modeling of Distributed Resources for Distribution System Operations.
  Proceedings of the IEEE. 104(4), p. 789-806, 2016.
  
• Michael Wetter, Marco Bonvini and Thierry S. Nouidui.
  Equation-based languages - A new paradigm for building energy modeling, simulation and optimization.
  Energy and Buildings, 117(1), p. 290-300, 2016.
  Also available as LBNL Technical Report LBNL-1003383.
  
• Michael Wetter, Wangda Zuo, Thierry S. Nouidui and Xiufeng Pang.
  Modelica Buildings library.
  Journal of Building Performance Simulation, 7(4):253-270, 2014.
  Also available as LBNL Technical Report LBNL-1002944.
  
• Thierry Stephane Nouidui, Michael Wetter and Wangda Zuo.
  Functional mock-up unit for co-simulation import in EnergyPlus.
  Journal of Building Performance Simulation, 7(3):192-202, 2014.
  
• Marco Bonvini, Michael D. Sohn, Jessica Granderson, Michael Wetter and Mary Ann Piette.
  Robust on-line fault detection diagnosis for HVAC components based on nonlinear state estimation techniques.
  Applied Energy, 124(1):156-166, 2014.
• Wangda Zuo, Andrew McNeil, Michael Wetter and Eleanor S. Lee.
  Acceleration of the Matrix Multiplication of Radiance Three Phase Daylighting Simulations with Parallel Computing on Heterogeneous Hardware of Personal Computer.
  Journal of Building Performance Simulation, 7(2):152-163, 2014.
  
• Mary Ann Piette, Jessica Granderson, Michael Wetter and Sila Kiliccote.
  Intelligent Building Energy Information and Control Systems for Low-Energy Operations and Optimal Demand Response.
  IEEE Design & Test of Computers, 2012.
  
• Xiufeng Pang, Michael Wetter, Prajesh Bhattacharya and Philip Haves.
  A framework for simulation-based real-time whole building performance assessment.
  Building and Environment, 54:100-108, 2012.
  
• Michael Wetter.
  Co-simulation of building energy and control systems with the Building Controls Virtual Test Bed.
  Journal of Building Performance Simulation, 4(3):185-203, 2011.
  Also available as LBNL Technical Report LBNL-81118.
  
• Marija Trcka, Jan Hensen and Michael Wetter.
  Co-simulation for performance prediction of integrated building and HVAC systems - An analysis of solution characteristics using a two-body system.
  Simulation Modelling Practice and Theory, 18(7):957-970, 2010.
  Also available as LBNL Technical Report LBNL-3907E.
  
• Jérôme Henri Kämpf, Michael Wetter and Darren Robinson.
  A comparison of global optimization algorithms with standard benchmark functions and real-world applications using EnergyPlus.
  Journal of Building Performance Simulation, 3(2):103-120, 2010.
  
• Marija Trcka, Jan Hensen and Michael Wetter.
  Co-simulation of innovative integrated HVAC systems in buildings.
  Journal of Building Performance Simulation, 2(3):209-230, 2009.
  Also available as LBNL Technical Report LBNL-3908E.
  
• Michael Wetter.
  Modelica-based Modeling and Simulation to Support Research and Development in Building Energy and Control Systems.
  Journal of Building Performance Simulation, 2(2):143-161, 2009.
  Also available as LBNL Technical Report LBNL-2740E.
  
• Tianzhen Hong, Fred Buhl, Philip Haves, Stephen Selkowitz and Michael Wetter.
  Comparing computer run time of building simulation programs.
  Building Simulation, 1(3):210-213, 2008.
  
• Elijah Polak and Michael Wetter.
  Precision control for generalized pattern search algorithms with adaptive precision function evaluations.
  SIAM Journal on Optimization, 16(3):650-669, 2006.
  
• Michael Wetter.
  BuildOpt - A new building energy simulation program that is built on smooth models.
  Building and Environment, 40:1085--1092, 2005.
• Michael Wetter and Elijah Polak.
  Building design optimization using a convergent pattern search algorithm with adaptive precision simulations.
  Energy and Buildings, 37(6):603--612, 2005.
• Michael Wetter and Elijah Polak.
  A convergent optimization method using pattern search algorithms with adaptive precision simulation.
  Building Services Engineering Research and Technology, 25(4):327--338, 2004.
• Michael Wetter and Jonathan Wright.
  A comparison of deterministic and probabilistic optimization algorithms for nonsmooth simulation-based optimization.
  Building and Environment, 39(8):989--999, 2004.

Dissertation

Software

• Modelica Buildings Library.
• Modelica IEA EBC Annex 60 Library.
• Building Controls Virtual Test Bed.
• CyPhySim Cyber-Physical Simulator based on Ptolemy II.
• FMU Export of EnergyPlus.
• GenOpt - Generic optimization program.

Peer Reviewed Conference Papers

• Ettore Zanetti, David Blum and Michael Wetter.
  Control development and sizing analysis for a 5th generation district heating and cooling network using Modelica.
  Proc. of the 15th International Modelica Conference, Aachen, Germany, October 2023.
• Laura Maier, Christoph Nytsch-Geusen, Lucas Westermann, Kushagra Mathur, Michael Wetter and Dirk Müller.
  Comparative Study and Validation of Photovoltaic Model Formulations for the IBPSA Modelica Library based on Rooftop Measurement Data.
  Proc. of the 15th International Modelica Conference, Aachen, Germany, October 2023.
• Antoine Gautier, Michael Wetter, Jianjun Hu and Hubertus Tummescheit.
  HVAC and Control Templates for the Modelica Buildings Library.
  Proc. of the 15th International Modelica Conference, Aachen, Germany, October 2023.
• Alessandro Maccarini, Michael Wetter, Davide Varesano, Martin Bloemendal, Alireza Afshari and Angelo Zarrella.
  Low-order aquifer thermal energy storage model for geothermal system simulation.
  Proc. of the 15th International Modelica Conference, Aachen, Germany, October 2023.
• Gabe Fierro, Anand K. Prakash, David Blum, Joel Bender, Erik Paulson and Michael Wetter.
  Notes Paper: Enabling Building Application Development with Simulated Digital Twins.
  BuildSys '22: Proceedings of the 9th ACM International Conference on Systems for Energy-Efficient Buildings, Cities, and Transportation, p. 250--253, New York, NY, November, 2022.
• Hongxiang Fu, David Blum and Michael Wetter.
  Fan and Pump Efficiency in Modelica based on the Euler Number.
  Proc. of the American Modelica Conference 2022, p. 19-25, Dallas, TX, October, 2022.
• Michael Wetter, Yan Chen, Karthik Devaprasad, Paul Ehrlich and Jianjun Hu.
  Bridging the gap between building energy modeling and controls implementation - experiences of, and best practice for, coupled HVAC-control modeling.
  Proc. of the 18th IBPSA Conference, p. 791--798, Shanghai, China, September 2023.
• Yan Chen, Michael Wetter, Xuechen Lei, Jeremy Lerond, Anand Prakash, Yun Joon Jung, Paul Ehrlich and Draguna Vrabie.
  Control Performance Verification -- The hidden opportunity of ensuring high performance of building control system.
  Proc. of the 18th IBPSA Conference, p. 3467--3474, Shanghai, China, September 2023.
• Amir Roth, Michael Wetter, Kyle Benne, David Blum, Yan Chen, Gabriel Fierro, Marco Pritoni, Avijit Saha and Draguna Vrabie.
  Towards Digital and Performance-Based Supervisory HVAC Control Delivery.
  ACEEE Summer Study on Energy Efficiency in Buildings, p. 3-528--3-543, Pacific Grove, CA, August, 2022.
• Kathryn Hinkelman, Saranya Anbarasu, Michael Wetter, Antoine Gautier, Baptiste Ravache and Wangda Zuo.
  Towards Open-Source Modelica Models for Steam-Based District Heating Systems.
  Proc. of the 1st International Workshop on Open Source Modelling and Simulation of Energy Systems (OSMSES), Aachen, Germany, April 2022.
• Michael Wetter, Kyle Benne and Baptiste Ravache.
  Software Architecture and Implementation of Modelica Buildings Library Coupling for Spawn of EnergyPlus.
  Proc. of the 14th International Modelica Conference, p. 325--334, Linkoping, Sweden, September 2021.
• Kathryn Hinkelman, Jing Wang, Chengliang Fan, Wangda Zuo, Antoine Gautier, Michael Wetter and Nicholas Long.
  A Case Study on Condenser Water Supply Temperature Optimization with a District Cooling Plant.
  Proc. of the 14th International Modelica Conference, p. 587--595, Linkoping, Sweden, September 2021.
• Michael Wetter, Jianjun Hu, Anand Prakash, Paul Ehrlich, Gabe Fierro, Milica Grahovac, Marco Pritoni, Lisa Rivalin and Dave Robin.
  Modelica-json: Transforming energy models to digitize the control delivery process.
  Proc. of the 17th IBPSA Conference, Brugge, Belgium, September 2021.
• Christine Doughty, Jianjun Hu, Patrick Dobson, Peter Nico and Michael Wetter.
  Coupling subsurface and above-surface models for optimizing the design of borefields and district heating and cooling systems in the presence of varying water-table depth.
  Proc. of 46th Workshop on Geothermal Reservoir Engineering, Palo Alto, California, February, 2021.
• Gabe Fierro, Anand Krishnan Prakash, Cory Mosiman, Marco Pritoni, Paul Raftery, Michael Wetter and David E. Culler.
  Shepherding Metadata Through the Building Lifecycle.
  BuildSys '20: Proc. of the 7th ACM International Conference on Systems for Energy-Efficient Buildings, Cities, and Transportation, p. 70--79, November, 2020
• Michael Wetter, Kyle Benne, Antoine Gautier, Thierry S. Nouidui, Agnes Ramle, Amir Roth, Hubertus Tummescheit, Stuart Mentzer and Christian Winther.
  Lifting the Garage Door on Spawn, an Open-Source BEM-Controls Engine.
  Proc. of Building Performance Modeling Conference and SimBuild, p. 518--525, Chicago, IL, USA, September 2020.
• Kun Zhang, David H. Blum, Milica Grahovac, Jianjun Hu, Jessica Granderson and Michael Wetter.
  Development and Verification of Control Sequences for Single-Zone Variable Air Volume System Based on ASHRAE Guideline 36.
  2nd American Modelica Conference, p. 81-90, Boulder, CO, USA, March 2020.
• Jianjun Hu, Christine Doughty, Patrick Dobson, Peter Nico and Michael Wetter.
  Coupling Subsurface and Above-Surface Models for Design of Borefields and Geothermal District Heating and Cooling Systems.
  Proc. of 45th Workshop on Geothermal Reservoir Engineering, Palo Alto, California, February, 2020.
• Michael Wetter, Christoph van Treeck, Lieve Helsen, Alessandro Maccarini, Dirk Saelens, Darren Robinson and Gerald Schweiger.
  IBPSA Project 1: BIM/GIS and Modelica framework for building and community energy system design and operation - ongoing developments, lessons learned and challenges.
  Sustainable Built Environment Conference, Graz, Austria, September 2019.
• Michael Wetter, Antoine Gautier, Milica Grahovac, Jianjun Hu.
  Verification of Control Sequences within OpenBuildingControl.
  Proc. of the 16th IBPSA Conference, p. 885--892, Rome, Italy, September 2019.
• David Blum, Filip Jorissen, Sen Huang, Yan Chen, Javier Arroyo, Kyle Benne, Yanfei Li, Valentin Gavan, Lisa Rivalin, Lieve Helsen, Draguna Vrabie, Michael Wetter and Marina Sofos.
  Prototyping The BOPTEST Framework For Simulation-Based Testing Of Advanced Control Strategies In Buildings.
  Proc. of the 16th IBPSA Conference, p. 2737--2744, Rome, Italy, September 2019.
• Michael Wetter, Jianjun Hu, Milica Grahovac, Brent Eubanks and Philip Haves.
  OpenBuildingControl: Modeling feedback control as a step towards formal design, specification, deployment and verification of building control sequences.
  Proc. of Building Performance Modeling Conference and SimBuild, p. 775--782, Chicago, IL, USA, September 2018.
• Yangyang Fu, Michael Wetter and Wangda Zuo.
  Modelica models for data center cooling systems.
  Proc. of Building Performance Modeling Conference and SimBuild, p. 438--445, Chicago, IL, USA, September 2018.
• Thierry S. Nouidui and Michael Wetter.
  Simulator to FMU: A python utility to support building simulation tool interoperability.
  Proc. of Building Performance Modeling Conference and SimBuild, p. 325--330, Chicago, IL, USA, September 2018.
• Michael Wetter, Milica Grahovac and Jianjun Hu.
  Control Description Language.
  1st American Modelica Conference, Cambridge, MA, USA, August 2018.
• Krzysztof Arendt, Muhyiddine Jradi, Michael Wetter and Christian Veje.
  ModestPy: An Open-Source Python Tool for Parameter Estimation in Functional Mock-up Units.
  1st American Modelica Conference, Cambridge, MA, USA, August 2018.
• David H. Blum and Michael Wetter.
  MPCPy: an Open-Source Software Platform for Model Predictive Control in Buildings.
  Proc. of the 15th IBPSA Conference, p. 1381--1390, San Francisco, CA, USA, August 2017.
• Massimo Cimmino and Michael Wetter.
  Modelling of Heat Pumps with Calibrated Parameters Based on Manufacturer Data.
  Proc. of the 12th International Modelica Conference, p. 219--226, Prague, Czech Republic, May 2017.
• Rebecca Zarin Pass, Michael Wetter, Mary Ann Piette.
  A Tale of Three District Energy Systems: Metrics and Future Opportunities.
  Proc. of ACEEE Summer Study on Energy Efficiency in Buildings, Asilomar, CA, August 2016.
• Sergi Rotger-Griful, Spyros Chatzivasileiadis, Rune Hylsberg Jacobsen, Emma M. Stewart, Javier Matanza Domingo and Michael Wetter.
  Hardware-in-the-Loop Co-simulation of Distribution Grid for Demand Response.
  Proc. of the 19th Power Systems Computation Conference, Genoa, Italy, June 2016.
  Also available as LBNL Technical Report LBNL-1005928.
• Raymond Sterling, Thorsten Müller, Ando Andriamamonjy, Alberto Giretti, Marco Bonvini, Zheng O'Neill, Michael Wetter, Mats Vande Cavey, Andrea Costa, Gesa Boehme, Wangda Zuo, Ralf Klein, Bing Dong, Marcus M. Keane.
  IEA Annex 60 Activity 2.3: Model use during operation, approach and case studies.
  Proceedings of the 3rd IBPSA-England Conference BSO, Newcastle, September, 2016.
• Sen Huang, Mats Vande Cavey, Raymond Sterling, Wangda Zuo, Lieve Helsen, Alberto Giretti, Marco Bonvini, Zheng O'Neill, Michael Wetter, Andrea Costa, Gesa Boehme, Ralf Klein, Bing Dong and Marcus M. Keane.
  IEA Annex 60 Activity 2.3: Model use during operation, approach and case studies.
  CLIMA 2016 - Proc. of the 12th REHVA World Congress, Per K. Heiselberg (ed.), Aalborg, Denmark, May 2016.
• Michael Wetter, Thierry S. Nouidui, David Lorenzetti, Edward A. Lee and Amir Roth.
  Prototyping the next generation EnergyPlus simulation engine.
  Proc. of the 14th IBPSA Conference, p. 403--410, Hyderabad, India, December 2015.
• Michael Wetter, Marcus Fuchs, Pavel Grozman, Lieve Helsen, Filip Jorissen, Moritz Lauster, Dirk Müller, Christoph Nytsch-Geusen, Damien Picard, Per Sahlin and Matthis Thorade.
  IEA EBC Annex 60 Modelica Library - An international collaboration to develop a free open-source model library for buildings and community energy systems.
  Proc. of the 14th IBPSA Conference, p. 395--402, Hyderabad, India, December 2015.
• Michael Wetter, Marco Bonvini, Thierry S. Nouidui, Wei Tian, and Wangda Zuo.
  Modelica Buildings library 2.0.
  Proc. of the 14th IBPSA Conference, p. 387--394, Hyderabad, India, December 2015.
• Raymond Sterling, Alberto Giretti, Marco Bonvini, Zheng O'Neill, Michael Wetter, Mats Vande Cavey, Andrea Costa, Gesa Boehme, Wangda Zuo, Ralf Klein, Bing Dong and Marcus M. Keane.
  IEA Annex 60 Activity 2.3: Model use during operation, approach and case studies.
  Proc. of the 14th IBPSA Conference, p. 355--362, Hyderabad, India, December 2015.
• Marco Bonvini and Michael Wetter.
  Gradient-based optimal control of batteries and HVAC in district energy systems.
  Proc. of the 14th IBPSA Conference, p. 363--370,, Hyderabad, India, December 2015.
• Edward A. Lee, Mehrdad Niknami, Thierry S. Nouidui and Michael Wetter.
  Modeling and Simulating Cyber-Physical Systems using CyPhySim.
  Proc. of the International Conference on Embedded Software (EMSOFT 2015), Amsterdam, Netherlands, 2015.
• Michael Wetter, Marcus Fuchs and Thierry Stephane Nouidui.
  Design choices for thermofluid flow components and systems that are exported as Functional Mockup Units.
  Proc. of the 11th International Modelica Conference, p. 31--41, Versailles, France, September 2015.
• Filip Jorissen, Michael Wetter and Lieve Helsen.
  Simulation Speed Analysis and Improvements of Modelica Models for Building Energy Simulation.
  Proc. of the 11th International Modelica Conference, p. 59--69, Versailles, France, September 2015.
• David Broman, Lev Greenberg, Edward A. Lee, Michael Massin, Stavros Tripakis and Michael Wetter.
  Requirements for Hybrid Cosimulation Standards.
  18th International Conference on Hybrid Systems: Computation and Control (HSCC 2015), Seattle, WA, April 2015.
• Christopher Brooks, Edward A. Lee, David Lorenzetti, Thierry S. Nouidui and Michael Wetter.
  Demo: CyPhySim - A Cyber-Physical Systems Simulator.
  18th International Conference on Hybrid Systems: Computation and Control (HSCC 2015), Seattle, WA, April 2015.
• Marco Bonvini, Michael Wetter and Thierry Stephane Nouidui.
  A Modelica package for building-to-electical grid integration.
  Proc. of 5th BauSim Conference, p. 6--13, Aachen, Germany, September 2014.
  
• Thierry Stephane Nouidui and Michael Wetter.
  Linking Simulation Programs, Advanced Control and FDD Algorithms with a Building Management System Based on the Functional Mock-Up Interface and the Building Automation Java Architecture Standards.
  Proc. of ASHRAE/IBPSA-USA Building Simulation Conference, p. 49--55, Atlanta, GA, September 2014.
• Wangda Zuo, Michael Wetter, Dan Li, Mingang Jin, Wei Tian and Qingyan Chen.
  Coupled Simulation of Indoor Environment, HVAC and Control System by Using Fast Fluid Dynamics and the Modelica Buildings Library.
  Proc. of ASHRAE/IBPSA-USA Building Simulation Conference, p. 56--63, Atlanta, GA, September 2014.
  
• Marco Bonvini, Michael Wetter and Michael D. Sohn.
  An FMI-Based Toolchain for the Adoption of Model-Based FDD.
  Proc. of ASHRAE/IBPSA-USA Building Simulation Conference, p. 137--144, Atlanta, GA, September 2014.
• Thierry Stephane Nouidui and Michael Wetter.
  Tool coupling for the design and operation of building energy and control systems based on the Functional Mock-up Interface standard.
  Proc. of the 10th International Modelica Conference, p. 311--320, Lund, Sweden, March 2014.
• Marco Bonvini, Michael Wetter, and Michael D. Sohn.
  An FMI-based Framework for State and Parameter Estimation.
  Proc. of the 10th International Modelica Conference, p. 647--656, Lund, Sweden, March 2014.
• Edmund Widl, Benoit Delinchant, Svea Kübler, Dan Li, Wolfgang Müller, Victor Norrefeldt, Thierry Stephane Nouidui, Sebastian Stratbücker, Michael Wetter, Frederic Wurtz, and Wangda Zuo.
  Novel simulation concepts for buildings and community energy systems based on the Functional Mock-up Interface specification.
  Workshop on Modeling and Simulation of Cyber-Physical Energy Systems (MSCPES), p. 1--6, Berlin, Germany, 2014.
• David Broman, Christopher Brooks, Lev Greenberg, Edward A. Lee, Michael Masin, Stavros Tripakis, and Michael Wetter.
  Determinate Composition of FMUs for Co-Simulation.
  Proc. of the International Conference on Embedded Software (EMSOFT 2013), p. 1--12, Montreal, Canada, 2013.
• Michael Wetter.
  Fan and pump model that has a unique solution for any pressure boundary condition and control signal.
  Proc. of the 13th IBPSA Conference, p. 3505--3512, Chamb�ry, France, August 2013.
• Thierry Stephane Nouidui, Michael Wetter, and Wangda Zuo.
  Functional Mock-up Unit Import in EnergyPlus for co-simulation.
  Proc. of the 13th IBPSA Conference, p. 3275--3282, Chamb�ry, France, August 2013.
• Xiufeng Pang, Raj Dye, Thierry Stephane Nouidui, Michael Wetter, and Joseph J. Deringer.
  Linking interactive Modelica simulations to HTML5 using the Functional Mockup Interface for the LearnHPB platform.
  Proc. of the 13th IBPSA Conference, p. 2823--2829, Chamb�ry, France, August 2013.
• Donghun Kim, Wangda Zuo, James E. Braun, and Michael Wetter.
  Comparisons of building system modeling approaches for control system design.
  Proc. of the 13th IBPSA Conference, p. 3267--3274, Chamb�ry, France, August 2013.
• Thierry Stephane Nouidui, Kaustubh Phalak Wangda Zuo, and Michael Wetter.
  Validation and Application of the Room Model of the Modelica Buildings library.
  Proc. of the 9th International Modelica Conference, Munich, Germany, September 2012.
• Thierry Stephane Nouidui, Michael Wetter, and Wangda Zuo.
  Validation of the window model of the Modelica Buildings library.
  Proc. of the 5th SimBuild Conference, Madison, WI, USA, August 2012.
• Michael Wetter, Wangda Zuo, and Thierry Stephane Nouidui.
  Modeling of Heat Transfer in Rooms in the Modelica "Buildings" Library.
  Proc. of the 12th IBPSA Conference, p. 1096--1103. Sydney, Australia, November 2011.
• Mary Ann Piette, Jessica Granderson, Michael Wetter, and Sila Kiliccote.
  Responsive and intelligent building information and control for low-energy and optimized grid integration.
  ACEEE Summer Study on Energy Efficiency in Buildings, Pacific Grove, CA, Aug. 2012.
• J. Elliot Nahman, Kirsten Heming, Michael Wetter, Xiufeng Pang, Maria Konstantoglou.
  LearnHPB and eLAD - two related online eLearning platforms for high performance buildings.
  ACEEE Summer Study on Energy Efficiency in Buildings, Pacific Grove, CA, Aug. 2012.
• Thierry Stephane Nouidui, Michael Wetter, Zhengwei Li, Xiufeng Pang, Prajesh Bhattacharya and Philip Haves.
  BACnet and Analog/Digital Interfaces of the Building Controls Virtual Test Bed.
  Proc. of the 12th IBPSA Conference, p. 294--301. Sydney, Australia, November 2011.
• Xiufeng Pang, Prajesh Bhattacharya, Zheng O'Neill, Philip Haves, Michael Wetter and Trevor Bailey.
  Real-time Building Energy Simulation using EnergyPlus and the Building Controls Virtual Test Bed.
  Proc. of the 12th IBPSA Conference, p. 2890--2896. Sydney, Australia, November 2011.
• Wangda Zuo, Andrew McNeill, Michael Wetter and Eleanor Lee.
  Acceleration of Radiance for Lighting Simulation by using Parallel Computing with OpenCL.
  Proc. of the 12th IBPSA Conference, p. 110--117. Sydney, Australia, November 2011.
• Michael Wetter, Wangda Zuo and Thierry Stephane Nouidui.
  Recent Developments of the Modelica "Buildings" Library for Building Energy and Control Systems.
  Proc. of the 8th International Modelica Conference, Dresden, Germany, March 2011.
  Extended abstract.
• Leen Peeters, Michael Wetter, Alex Ferguson and William D'haeseleer.
  The coupling of ESP-r and GenOpt: A simple case study.
  Proc. of the 4th SimBuild Conference, New York, NY, USA, August 2010.
• Michael Wetter.
  Modelica Library for Building Heating, Ventilation and Air-Conditioning Systems.
  Proc. of the 7th International Modelica Conference, Como, Italy, September 2009.
  Extended abstract.
• Rüdiger Franke, Francesco Casella, Martin Otter, Katrin Proelss, Michael Sielemann, Michael Wetter.
  Standardization of thermo-fluid modeling in Modelica.Fluid 1.0.
  Proc. of the 7th International Modelica Conference, Como, Italy, September 2009.
• Michael Wetter.
  A Modelica-based model library for building energy and control systems.
  Proc. of the 11th IBPSA Conference, p. 652--659. Glasgow, Scotland, July 2009.
• Marija Trcka, Michael Wetter and Jan Hensen.
  An implementation of co-simulation for performance prediction of innovative integrated HVAC systems in buildings.
  Proc. of the 11th IBPSA Conference, p. 724--731. Glasgow, Scotland, July 2009.
• Michael Wetter and Philip Haves.
  A modular Building Controls Virtual Test Bed for the integration of heterogeneous systems.
  Proc. of the 3rd SimBuild Conference, Berkeley, CA, USA, August 2008.
• Michael Wetter, Philip Haves, Michael A. Moshier and Edward F. Sowell.
  Using SPARK as a solver for Modelica.
  Proc. of the 3rd SimBuild Conference, Berkeley, CA, USA, August 2008.
• Marija Trcka, Michael Wetter and Jan Hensen.
  Comparison of co-simulation approaches for building and HVAC/R system simulation.
  Proc. of the 10th IBPSA Conference, p. 1418--1425. Beijing, China, September 2007. <
• Michael Wetter.
  Multizone Airflow Model in Modelica.
  Proc. of the 5th International Modelica Conference, p. 431--440. Vienna, Austria, September 2006.
• Michael Wetter.
  Multizone Building Model for Thermal Building Simulation in Modelica.
  Proc. of the 5th International Modelica Conference, p. 517--526. Vienna, Austria, September 2006.
• Michael Wetter and Christoph Haugstetter.
  Modelica versus TRNSYS -- A Comparison Between an Equation-Based and a Procedural Modeling Language for Building Energy Simulation.
  Proc. of the 2nd SimBuild Conference, Cambridge, MA, USA, August 2006.
• Michael Wetter and Elijah Polak.
  A convergent optimization method using pattern search algorithms with adaptive precision simulation.
  In G. Augenbroe and J. Hensen, editors, Proc. of the 8th IBPSA Conference, volume III, pages 1393-1400. Eindhoven, Netherlands, 2003.
• Michael Wetter and Jonathan Wright.
  Comparison of a generalized pattern search and a genetic algorithm optimization method.
  In G. Augenbroe and J. Hensen, editors, Proc. of the 8th IBPSA Conference, volume III, pages 1401-1408. Eindhoven, Netherlands, 2003.
• Michael Wetter.
  GenOpt - A generic optimization program.
  In R. Lamberts, C. O. R. Negrao, and J. Hensen, editors, Proc. of the 7th IBPSA Conference, volume I, pages 601-608. Rio de Janeiro, 2001.

Technical Reports

• Michael Wetter and Jianjun Hu.
  Quayside Energy System Analysis.
  LBNL-2001197, 2019.

• David Broman, Lev Greenberg, Edward A. Lee, Michael Massin, Stavros Tripakis and Michael Wetter.
  Requirements for Hybrid Cosimulation.
  UCB/EECS-2014-157, 2014.

• Michael Wetter.
  BuildOpt - A new building energy simulation program that is built on smooth models.
  LBNL-54657, 2004.

• Michael Wetter, Elijah Polak and Van P. Carey.
  BuildOpt 1.0.1 validation.
  LBNL-54658, 2004.

• Michael Wetter.
  GenOpt 2.0.0 - Generic optimization program.
  LBNL-54199, 2004.
  See http://SimulationResearch.lbl.gov/GO for information and download.

• Elijah Polak and Michael Wetter.
  Generalized pattern search algorithms with adaptive precision function evaluations.
  LBNL-52629, 2003.

• Michael Wetter.
  Design optimization with GenOpt.
  Building Energy Simulation, User News. Lawrence Berkeley National Laboratory, Vol. 21, Sept./Oct. 2000.

• Michael Wetter.
  Simulation model: Air-to-air plate heat exchanger.
  LBNL-42354, 1999.

• Michael Wetter.
  Simulation model: Finned water-to-air coil without condensation.
  LBNL-42355, 1999.

• Michael Wetter and Arthur Huber.
  TRNSYS type: Vertical borehole heat exchanger, EWS model. Model description and implementation in TRNSYS.
  TRNSYS user meeting, November 1997, Stuttgart, Germany.
  Distributed by TRANSSOLAR GmbH, Stuttgart, Germany.

• Thomas Afjei, Michael Wetter and Andrew Glass.
  TRNSYS type: Dual-stage compressor heat pump including frost and cycle losses. Model description and implementation in TRNSYS.
  TRNSYS user meeting, November 1997, Stuttgart, Germany.
  Distributed by TRANSSOLAR GmbH, Stuttgart, Germany.

• Michael Wetter.
  NMF model: Single-pane glazed air collector with a coupled wall. Version 1.0. Model description.
  Technical report, ZTL Luzern, 1997.

• Gerhard Zweifel and Michael Wetter.
  Hand calculation method to determine the yearly performance factor of heat-pump heating systems for room heating and domestic hot water preparation.
  Additional report to low-cost low-temperature heating with heat pump. Phase 2. ZTL Luzern. Luzern 1995 (in German):
  Handrechenmethode zur Bestimmung der Jahresarbeitszahl von Wärmepumpenanlagen für Heiz- und Warmwasserbetrieb.
  Zusatzbericht zum Projekt Kostengünstige Niedrigtemperaturheizung mit Wärmepumpe. Phase 2. ZTL Luzern, Abt. HLK. Luzern, 1997.

• José Cocho, Matthias Sulzer and Michael Wetter.
  Energy Optimized Office Buildings.
  BS Thesis Nr. 95-08, ZTL Luzern, 1995, in German.
  Energieoptimales Bauen im Bürobereich.
  Diplomarbeit Nr. 95-08, ZTL Luzern, 1995.

Project Reports

• T. Afjei, W. Betschart, R. Bircher, G. Doka, H.P. Geering, P. Giger, S. Ginsburg, A. Glass, A. Huber, E. Shafai, M. Wetter, D. Wittwer, and G. Zweifel.
  Low-cost low-temperature heating with heat pump. Phase 2: Measurements of a function specimen, conception of an intelligent controller and ecological and economical comparison with conventional heating systems.
  Research Programme of the Swiss Federal Office of Energy, 1998, in German.
  Kostengünstige Niedrigtemperaturheizung mit Wärmepumpe. Phase 2: Ökologischer und ökonomischer Vergleich des Gesamtsystems, Systemoptimierung, Konzeption einer intelligenten Regelung und Versuche an Testanlagen.
  Forschungsprogramm Umgebungs- und Abwärmenutzung, Wärme-Kraft-Kopplung (UAW) des Bundesamt für Energiewirtschaft (BEW), 1998.

• T. Afjei, W. Betschart, R. Bircher, H.P. Geering, S. Ginsburg, W. Hässig, M. Wetter, D. Wittwer, and G. Zweifel.
  Low-cost low-temperature heating with heat pump. Phase 1: Feasibility analysis, problem analysis and preparation for the construction of a function specimen.
  Research Programme of the Swiss Federal Office of Energy, 1996, in German.
  Kostengünstige Niedrigtemperaturheizung mit Wärmepumpe. Phase 1: Machbarkeits- und Problemanalyse.
  Forschungsprogramm Umgebungs- und Abwärmenutzung, Wärme-Kraft-Kopplung (UAW) des Bundesamt für Energiewirtschaft (BEW). ENET-Nr. 9655701, Bern, 1996. Kurzfassung