Standardization and Innovation in the Green Buildings Sector Standardization in the Green Buildings field Overall energy performance of buildings Dick (H.A.L.) van Dijk, Senior Scientist at Netherlands Organisation for Applied Scientific Research TNO Co-convenor ISO/TC 163-TC 205 Joint Working Group Energy Performance of Buildings using the Holistic Approach Content 1.Green Buildings 2.Energy performance of buildings (EPB) – International standardization - history – Principle of overall energy performance of buildings 3.EPB standards and innovation 4.Systemic approach & link with product information 5.Energy Performance of Buildings, the ISO 52000 series, work in progress Slide 2 What is a green building “A green building • Operates energy efficiently • Conserves water • Is comfortable, safe and healthy • Is durable and maintainable with minimal environmental impact “ Life Cycle: • Construction • Operation • Deconstruction Slide 3 Example of Buildings Rating System Categories Category 1 Sustainable Site, Accessibility and Ecology Category 2 Energy Efficiency Category 3 Water Efficiency Category 4 Materials & Resources Category 5 Indoor Environmental Quality Category 6 Management Category 7 Innovation and and Added Value 4 Energy performance of buildings (EPB) Slide 5 History 2020 2000 1980 Bldng envelope & components Bldng heating needs Energy use for heating and cooling Overall building energy performance Energy producing built environment Slide 6 Now: Overall energy performance of buildings (EPB) Overall Energy balance (energy use, own production) Requires an integrated and modular set of calculation procedures Since 2009 in ISO ISO/TC 163/WG 4, joint working group of TC 163 and TC 205 Energy Performance of Buildings using the holistic approach Co-convenors: • Mr Dick van Dijk (Netherlands) • Prof Essam Khalil (Egypt) Inspired by European Energy Performance of Buildings Directive (EPBD) !?! Overall Energy balance (energy use, own production) Systemic approach EP Today: Think pyramid EP expressions EP aggregation Boundaries, classification Collect all energy elements Building energy needs and system energy losses Component input data Boundary conditions Why systemic approach? Product performance ≠ Performance in building Slide 10 ASHRAE (USA) Possible Future Roadmap 110% ASHRAE 90.1 Building Target 100% 90% 80% MaxTech Limit Full Load Efficiency 70% Component approach reaches limit 60% 50% 40% 30% 20% 10% 0% 2004 2007 2010 Average ASHRAE 90.1 2013 Requirements Regulated Buidling Energy Use vs ASHRAE 90.1‐2004 Commercial HVAC Efficiency Requirements Possible Path to nearly Net Zero Buildings 2013 2016 Equipment Level Limit 2019 2022 Year Systems Approach & Renewable Energy 2025 2028 2031 Chart is an estimate of possible future regulations to achieve Near Net Zero by 2034 based on studies done by Carrier on technical limits of HVAC equipment 2034 Need for systems approach 2037 Example: heat recovery unit (ventilation) • High performance product: 95% efficiency • Applied in building: – Duct heat losses? – Frost protection? – Windows opened? – By pass (summer)? –… Slide 12 Example: heat pump • High performance product • Applied in building: – Sufficient capacity? – Heat source temperature? Performance Power Slide 13 Example: Renewable energy • Complex policy issues involved • For instance appreciation of: – Use of biomass as renewable energy – Green electricity produced on site and exported to the grid – Use of renewable energy produced at district level – …. Slide 14 Example: Infrared panel heater • Claim: “significant energy saving, because..” (for instance) – Better room temperature distribution – Fast response – More comfortable – Decreased ventilation heat losses • Requires detailed model to evaluate claims – Complex standard assumptions (for level playing field) Slide 15 Overall EP requirements in The Netherlands since 1995 Major innovation motor Research and innovation: • New EPB technologies (Inter-)national policies: • • • Regularly tightened minimum EP requirements (Financial) incentives Awareness campaigns EP EPB Standards: • Regularly updated with new technologies The Netherlands Transparent long term national policy Condensing boilers High perfomance glazing High DC fans performance lighting (offices) Solar hot water systems Served as one of the examples for the European Directive Heat pumps Heat recovery & Demand controlled ventilation Combined heat and power Heat recovery showers PV systems Future: ??!! ISO & CEN: Unique international cooperation 2000 2010 2020 CEN/TC 89, Thermal performance of buildings and building components ISO/TC 163, Thermal performance and energy use in the built environment ISO JOINT WORKING GROUP Energy Performance of Buildings using holistic approach (ISO/TC 163/WG 4) CEN/TC 371, Project Committee on Energy Performance of Buildings ISO/TC 205, Building environment design ASHRAE standards Slide 18 Work in progress Set of EN ISO standards on Energy Performance of Buildings (EPB): ISO 52000 series ISO 52000 ISO 52001 ISO 52003 ISO 52004 … ISO 52009 ISO 52010 .. ISO 52015 ISO 52016 ISO 52017 ISO 52018 ISO 52019 ISO 52020 ISO 52021 ISO 52022 … ISO 52145 ISO 52146 ISO 52147 ISO 52148 ISO 52149 ISO 52150 Conclusions International standards on overall energy performance of buildings • A major innovation motor • Systemic approach is necessary • Challenges: – Calculation procedures regarded as complicated – Input data from product performance assessment – Need to cover wide range of technologies, climates, building types, occupants patterns, policy issues, .. -Slide 20 Questions and suggestions?
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