Energy Efficiency in Buildings Welcome and Introduction 26. November 2013 in Mexico City, Mexico Meike Wächter energiewaechter GmbH by order of Energy Efficiency Export Initiative sponsored by the Federal Ministry of Economics and Technology www.efficiency-from-germany.info
Agenda Reasons for Energy Efficiency Governmental Strategies and Projects to Rise Energy Efficiency Overview on German Activities Energy Efficiency in Buildings: Background & Costs Energy Efficiency Export Initiative and the Participating German Companies
Reasons for Energy Efficiency www.efficiency-from-germany.info
Energy costs for households climbing Development of Consumer Price Indices in Germany 170 150 130 110 90 Electricity Gas Heating Oil Solid Fuels Central and District Heating 70 2005 = 100 50 Source: German Federal Statistical Office, May 2011
Reduction of Dependency on Fuel Imports Import dependency and self supply of selected primary energy carriers in Germany (2010) Domestic production 11% Natural Gas Domestic production 3% Mineral Oil Imports 89% Imports 97% Domestic production 24% Hard Coal Imports 76% Source: adapted from AGEB 2010, BGR-Database
Regional concentration of fossil resources Source: Federal Institute for Geosciences and Natural Resources, 2007
Governmental Strategies and Projects to Rise Energy Efficiency Overview on German Activities www.efficiency-from-germany.info
Energiewende Goals At a Glance 100% CO2-Emissions Renewable Energies 60% 100% Energy Consumption 80% 60% 50% 20% 10% 18% 1990 2020 2050 1990 2020 2050 2008 2020 2050 Source: adapted from BMWi
German Energy Savings Strategies Aims of the energy concept of the German Federal Government (September 2010) New standard Climate Neutral Buildings to reduce primary energy consumption of buildings by 80% (2050) Doubling of refurbishment rate (1% 2%) New financial incentives ( CO2-building Refurbishment Program, Market Incentive Program to integrate RES in buildings, Energy Refurbishment Program, etc.) Energy Efficiency Funds Harmonization of legal framework for Energy-Contracting Exemplary role of government in the implementation of energy efficient measures Source: BMWi
Governmental Strategies and Efficiency Projects Governmental Instruments to Increase Energy Efficiency in Buildings and Industry Regulatory Policy Legal Energy Requirements Saving for Ordinance Energy Saving 2009 Obligation of Replacement Financial Support Loans Energy and subsidies KfWpromotional program: efficient construction /refurbishment Tax incentives Promotion Market dena Transparency efficient house quality mark Pilot Projects Information Qualification of Experts Source: adapted from German Energy Agency (dena)
CO2 building rehabilitation programme Summary 2006 2013 Roughly 9,3bn Euro were allowed in public funds Between 2006 and June 2013, KfW approved about 1,2m loan and grant applications with an overall volume of 57bn. This lead to private investments of about 135bn Euro Over 3m housing units have been renovated or built energy efficiently, together with 1.600 municipal projects As a consequence of these construction and refurbishment measures, CO2-emissions could be reduced by some 6,5m tons annually Source: BMVBS 2013
Further initiatives of the German Federal Ministry of Economics and Technology Open Dialog Forum Energy Efficiency Open platform for discussion and dialog Participation of representatives of different political and economic sectors (Federation of German Industry (BDI), Association of German Chambers of Commerce and Industry, German Engineering Federation etc) After the first session (April 2013), the different participating associations declared to take a more active role in the promotion of energy efficiency Quelle: BMWi 2013
Further initiatives of the German Federal Ministry of Economics and Technology An energy efficient role model The eta-factory provides the possibility to review and optimize the whole industrial production chain in an energy efficient way Under the leadership of the Technical University Darmstadt, 12 companies and five research institutions and universities participate in this project The goal is to reduce the pimary energy demand of this factory of the future by 40% The project receives an official funding of 7,9m Euro Quellen: BMWi 2013
Certificate of Excellence (dena German Energy Agency) Purpose Recognize low energy buildings at first sight Prospective buyers and renters receive better information on energy saving possibilities without having deeper insight in technical details House owners and housing companies can use the certificate to value their properties higher Prerequisites Coupled to current energy saving standards set by the official energy saving ordinance (EnEV) Recognizes residential buildings above minimum public standards Source: German Energy Agency (dena)
Energy performance certificate for buildings For residential buildings Valid through ten years Permits a comparison with other typical buildings and facilitates an approximate estimation of future energy costs The certificate can be accompanied by modernization recommendations for the energetic improvement of the building Certificate of energy use and of energy demand Sources: BMVBS 2013, dena 2013
Energy performance certificate for buildings Energy demand (modeled usage) Calculated according to general building factors and designated usage Building size and materials used Projected usage and HVAC systems Climate conditions Energy use (actual usage) Based on actual usage data of at least the last three calendar years Normalized against weather data Source: www.zukunft-haus.info; pictures dena
Energy Efficiency in Buildings Background and Costs www.efficiency-from-germany.info
Energy consumption in the different economic sectors Relative energy consumption in the different economic sectors (2011): Trade and services 15.50% 25.10% Households Traffic 29.40% 30% Industry Source: Arbeitsgemeinschaft Energiebilanzen 2013
Energy use of private households Relative energy use according to area of application (2011): Process cooling, 4,8% Mechanical energy, 0,6% ITC, 4,1% Lighting, 2,1% Other process heat, 6,6% Ambient cooling, 0% Hot water, 15,9% Space heating, 65,8% Source: Arbeitsgemeinschaft Energiebilanzen 2013 (BMWi)
Building Life-Cycle Share of Energy Costs Project Development Construction Use Recycling (1-2 Jahre) (2-5 Jahre) 20% of total costs (20-40 years) (0-1 years) 80% of total costs, of which roughly 50% are energy costs Sources: dena; Pictures pixelio
Key Technologies for Energy Efficiency in Buildings Integrated Architecture and Design Insulation Heating and Cooling Technologies Ventilation Technologies Windows Heating Requirement New Building EnEV 2009: 40 70 kwh/m²a Passive House: 15 kwh/m²a 4 7 l house 1,5 l house Pictures: Export Initiative Energy Efficiency, German Passive house Institute
Energy Efficiency in Buildings Developments Not insulated buildings Passive house Source: http://www.heiz-tipp.de/service-31-gebaeude-thermografie.html; http://www.passiv.de/
Energy Efficiency in Buildings Developments Zero Energy House Plus Energy House Source: http://www.solardecathlon.de/; http://de.wikipedia.org/wiki/nullenergiehaus
Comparison of energy costs: Energy Saving Ordinance (EnEV) vs. Passive House Source: Passivhaus Kompendium 2010
Cost comparison EnEV 2009 vs. Passive House (PH) Roof Wall Basement Windows One-family House EnEV 2009 PH Mid-terrace House EnEV 2009 One-family House Apartment Building Mid-terrace House PH EnEV 2009 PH Thickness (cm) / U (W/m²K) 16/ 0,30 37 15/ 0,31 33 21/ 0,18 42/ 0,09 costs % 100% 123,2% 100% 130,6% 100% 114,6% Thickness (cm) / U (W/m²K) 16/ 0,23 30/ 0,13 14/ 0,26 20/ 0,18 16/ 0,23 30/ 0,13 costs % 100% 116,8% 100% 107,4% 100% 116,8% Thickness (cm) / U (W/m²K) 8/ 0,40 24/ 0,16 8/ 0,40 18/ 0,20 14/ 0,24 28/ 0,13 costs % 100% 126,8% 100% 116,8% 100% 121,3% U (W/m²K) 1,30 0,80 1,30 0,80 1,30 0,80 costs % 100% 160% 100% 160% 100% 160% Apartment Building Building services equipment Source: Passivehaus Kompendium 2010 EnEV 2009: comb. pellet boiler PH: comb. pellet boiler and ventilation system with heat recovery costs % 100% 126% 100% 128,6% 100% 132,9% Cost comparison of all building elements and trades EnEV 2009 PH EnEV 2009 PH EnEV 2009 PH 100% 109,5% 100% 108,6% 100% 109,3%
Energy Efficiency Export Initiative and the Participating German Companies www.efficiency-from-germany.info
The Energy Efficiency Export Initiative Activities and services: Know-how Transfer Trade Missions Training/ Education Fact-Finding Missions Networking with Decision Makers and Advocates Private Companies more Information on the Website www.efficiency-from-germany.info
Participating German Companies Company Representative Business segment Xella Baustoffe GmbH Luis Magaña Manufacturer of Energy efficient Building Materials, Insulation Steinel Vertrieb GmbH Abigail Örters Manufacturer of smart Lighting Solutions Sensors for Lighting Control Calyxo GmbH Jens Hock Manufacturer of Thin Film Photovoltaic (PV) Panels
Participating German Companies Company Representative Business segment SIG Solar Sylvia Schmenk Sales and Distribution for Photovoltaic (PV) Panels aluplast GmbH Jorge Aguilar Manufacturer of Energy Efficient Windows and Doors
Thank you for your attention! Contact details: Meike Wächter, energiewaechter GmbH mw@energiewaechter.de www.efficiency-from-germany.info