Institut für Gebäude- und Solartechnik Prof. Dr.-Ing. M. Norbert Fisch Mühlenpfordtstraße 23 D-38106 Braunschweig www.tu-braunschweig.de/igs PLUS-Energy Houses - A concept for future demonstration project Berghalde Dipl.-Ing. Franziska Bockelmann ENERGY FORUM Advanced Building Skins Conference, October 28-29, 2014, Bressanone (Italy)
Research and development project Operating strategies for energy plus buildings on the example of Berghalde operating time (follow-up project) : 08/2013-08/2015 funding agency: formerly 29. October 2014 Dipl. Ing. F. Bockelmann PLUS-Energy Houses - A concept for future demonstration project Berghalde Seite 2 www.tu-braunschweig.de/igs
Characteristics of the energyplus standard Balance limit Requirements heating / cooling domestic hot water ventilation auxiliary energy lighting appliance renewable energy FED PED e-mobility < 0 < 0 FED: Final energy demand PED: Primary energy demand Annual balance of primary energy and final energy 0 Direct self energy use > 30 % 29. October 2014 Dipl. Ing. F. Bockelmann PLUS-Energy Houses - A concept for future demonstration project Berghalde Seite 3 www.tu-braunschweig.de/igs
Goals Future energy-efficient Living comfort Eco-friendly mobility Combine energetic goals with architecture Interfaces between building and power grid 29. October 2014 Dipl. Ing. F. Bockelmann PLUS-Energy Houses - A concept for future demonstration project Berghalde Seite 4 www.tu-braunschweig.de/igs
Architectur single family house (4 Persons) near Stuttgart build 2010 260 m² floor area high energy efficiency - orientation - shape of building - high quality air-tight envelope 29. October 2014 Dipl. Ing. F. Bockelmann PLUS-Energy Houses - A concept for future demonstration project Berghalde Seite 5 www.tu-braunschweig.de/igs
Energy concept 29. October 2014 Dipl. Ing. F. Bockelmann PLUS-Energy Houses - A concept for future demonstration project Berghalde Seite 6 www.tu-braunschweig.de/igs
monitoring results three years of operation (2011 2013) 29. October 2014 Dipl. Ing. F. Bockelmann PLUS-Energy Houses - A concept for future demonstration project Berghalde Seite 7 www.tu-braunschweig.de/igs
Optimization increase of self - supply Operation of all electricity-intensive appliances and units (heat pump) at the time when power output from the PV is available Use of all available thermal storage (floor heating and buffer) Targeted operation of the heat pump Implementing enhanced control strategies to increase the running time of the heat pump. Increasing the temperature in the buffer Increase of surface and supply temperature of the floor heating Implementing of two batteries User comfort is not be limited by the proposed measures! 29. October 2014 Dipl. Ing. F. Bockelmann PLUS-Energy Houses - A concept for future demonstration project Berghalde Seite 8 www.tu-braunschweig.de/igs
Annual balance of total electricity energy quantity [kwh/a] surplus 7 247 kwh surplus 4 863 kwh surplus 1 650 kwh 29. October 2014 Dipl. Ing. F. Bockelmann PLUS-Energy Houses - A concept for future demonstration project Berghalde Seite 9 www.tu-braunschweig.de/igs
Monthly balance PV output and self use energy quantity [kwh] solar fraction / self use [%] 29. October 2014 Dipl. Ing. F. Bockelmann PLUS-Energy Houses - A concept for future demonstration project Berghalde Seite 10 www.tu-braunschweig.de/igs
Annual thermal energy balance 29. October 2014 Dipl. Ing. F. Bockelmann PLUS-Energy Houses - A concept for future demonstration project Berghalde Seite 11 www.tu-braunschweig.de/igs
Annual electrical energy consumption power consumption [kwh/a] 29. October 2014 Dipl. Ing. F. Bockelmann PLUS-Energy Houses - A concept for future demonstration project Berghalde Seite 12 www.tu-braunschweig.de/igs
Outlook and conclusion Implementing of new measures: OUTLOOK Increasing of thermal storage mass (825 l to 825 l + 700 l) Active function description and optimized control strategies Comfort measurements: adjust the installed ventilation equipment and the userspecific heating CONCLUSION Energyplus building and high PV-power self-supply is one of the answers to the challenges of our future energy supply The project is a role model example of integral planning and allows researching future orientated technology and energy strategies today. The high rate of PV-self-supply makes this building a trendsetting pilot project 29. October 2014 Dipl. Ing. F. Bockelmann PLUS-Energy Houses - A concept for future demonstration project Berghalde Seite 13 www.tu-braunschweig.de/igs
Lay out relevant planning aspects of architecture, energy, user comfort and building facilities for the Energy-PLUS standard in a holistic approach. Shows models of implemented systems for residential and commercial buildings and urban neighborhoods. Reveals the potential for global application to serve humanity at large. Available in German and English. 29. October 2014 Dipl. Ing. F. Bockelmann PLUS-Energy Houses - A concept for future demonstration project Berghalde Seite 14 www.tu-braunschweig.de/igs
Thank you for your attention 29. October 2014 Dipl. Ing. F. Bockelmann PLUS-Energy Houses - A concept for future demonstration project Berghalde Seite 15 www.tu-braunschweig.de/igs