Green Building Council Finland Evaluating the Sustainability of Buildings - Building Life Cycle Assessment ENERGY WEEK – VAASA Energy and buildings 19.3.2015 contents GREEN BUILDING COUNCILS BUILDING PERFORMANCE INDICATORS & PASSPORT LIFE CYCLE ASSESSMENT & LIFE CYCLE FOOTPRINT VIDEO (5 MINUTES) WorldGBC • Network of national Green Building Councils in more than one hundred countries • Making it the world’s largest international organisation influencing the green building marketplace. • Since 2002, WorldGBC has been working closely with national councils to promote local green building actions and address global issues such as climate change. • By driving collaboration and increasing the profile of the green building market, the WorldGBC works to ensure that green buildings are a part of any comprehensive strategy to deliver carbon emission reductions. LOCAL – REGIONAL – GLOBAL Green Building Council Finland • • • A non-profit organisation promoting sustainable development in the built environment • • Funding mostly from member fees (70 %) and the rest from projects Established in 2010 Our key focus is to encourage and advance the use of practices and methods that support sustainable development in the built environment Forms of operating: - Events Green Forum –seminars with different themes - Projects Building Performance Indicators Nordic guide for sustainable materials Framework for Nordic sustainable urban development Build Upon – Best practices of sustainable renovation in EU – Horizon2020 - Green Building Professional - Newsletters and websites - News from us and elsewhere - Green data bank Members according to field 2014 Over 110 member organisations around real estate and construction sector: • Tenants and occupants • Owners and investors • Municipalities, public administration • Infrastructure • Contractor, designers and builders • System, product and material suppliers Public administration 4% Associations and foundations 11% Product manufacturers 18% Education 3% Import, wholesale, and retail 0% Users / Occupants 4% Owners 8% Property maintenance and services 4% Design and consulting 34% Property development and contracting 7% Construction companies 7% 5 TASK GROUPS Use and maintenance Environmental certification and rating tools Education Sustainable areas Energy contents GREEN BUILDING COUNCILS BUILDING PERFORMANCE INDICATORS & PASSPORT LIFE CYCLE ASSESSMENT & LIFE CYCLE FOOTPRINT VIDEO (5 MINUTES) Building Performance Indicators ECONOMY # Lifecycle Cost € (EN 15643-4) GLOBAL WARMING # Life-cycle carbon footprint kg CO2e (EN 15978) # Operating carbon footprint kg CO2e (GHG Protocol) ENERGY # Imported energy # Imported primary energy # Baseload power OCCUPANTS # Indoor air quality classification (S1-3) # Share of satisfied occupants % Building passport contents GREEN BUILDING COUNCILS BUILDING PERFORMANCE INDICATORS & PASSPORT LIFE CYCLE ASSESSMENT & LIFE CYCLE FOOTPRINT VIDEO (5 MINUTES) Life Cycle – more than its parts Use & maintenance • Main attention to the big picture • Not partly optimized • Crucial decision are made in the early stage Construction Planning & procurement Design Areal planning Standardized Life Cycle of a Building SFS EN 15978:2011 (E) Figure 6 — Display of modular information for the different stages of the building assessment Life-cycle carbon footprint (EN 15978) Life-cycle carbon footprint is based on EN standards, which were created to remove technical barriers of trade in construction sector. It offers a standardized, comparable and technology neutral way to measure long term carbon emissions arising from design and construction choices made today. • • • • • • kg kg CO2CO e / 2e netto-m2 / evaluating period Key characteristics: Entirely based on physical properties (no weighting) Calculated for the service life required by the constructor Covers the full life-cycle, cradle to grave Specific requirements for input data quality & coverage Building energy consumption is primarily based on dynamic energy simulation, and only secondarily on Construction Code. The guideline makes the use of this standard more straight forward and provides users with helpful standard solutions & rules for simplifying assessment in the earliest phases of the project. Operational carbon footprint (GHG Protocol) Operational carbon footprint is based on the Greenhouse Gas Protocol, corporate accounting methodology. It makes tracking property carbon performance fully aligned with corporate carbon footprinting, and makes it ready to use for GRI reporting, for instance. The indicator is designed to work fully in line with the Imported energy indicator and is suitable both for property owners and users. The mandatory reporting level covers all forms of energy, which is typically also the information of which a property owner is aware at a high level of detail. The optional level of reporting covers waste management, refrigerant leakage, vehicle fuels and other maintenance activities. These are usually the domain of the tenant or the user of the property. The result can be calculated with Imported energy adjusted to outdoor temperature, under the name of Operating carbon footprint, temperature-adjusted. kg CO2e /heated cross-m2 Piloting performance indicators • The aim was to test the usability and usefulness of the indicators in nine different organisations on different buildings in 2013 • The result shows that the indicators are useful but they need more instruction for calculations and an internet based tool free to use for everybody and a database • The life cycle footprint is the most difficult to evaluate • The chosen life cycle is imperative for the end result while evaluating the life cycle footprint and cost, recommended life cycle 50 years Energy consumption of the pilot cases • In pilot cases T1/T1a and T8/T8a are demonstrated the difference between district cooling and compressor cooling (local cooling COP=3) • Again large variation between cases • Case 9 was an office with private workspaces Energy consumption of the pilot cases Energy consumption kWh / cross-m2 Energy consumption kWh / working place The efficiency of space use cross-m2 / working place The footprint of energy consumption of the pilot cases • The result shows that the main explaining factor is the emission unit coefficients • The renewable energy affects heavily to the results • The pilots 5, T6, T7 and T9 did not use renewable energy The footprint of energy consumption of the pilot cases Energy footprint kg / cross-m2 Energy footprint kg / working place Energy emissions gr. / kWh Life Cycle footprint of the pilot cases • Results from four pilot cases, with two different analysis periods (30 years / 50 years) • Results show that variation between cases is large and that the analysis period explains much of the results • • • • The footprint as one value is not very informative The comparison between different designs has to be done with similar input data The main problem of the results is the energy consumption of the use phase The life cycle footprint is useful while comparing different alternatives of a project Life Cycle footprint of the pilot cases Life cycle footprint kg / netto-m2 Life cycle footprint kg / working place Life cycle footprint kg / working place / year Our future – regulating embodied energy? EMBODIED ENERGY : POST 2021 RICS Methodology to Calculate Embodied Carbon 1st Edition 2014 Thank you! Questions? www.figbc.fi %facebook.com/FIGBC twitter.com/FiGBC_ bit.ly/figbc_linkedin [email protected] contents GREEN BUILDING COUNCILS BUILDING PERFORMANCE INDICATORS & PASSPORT LIFE CYCLE ASSESSMENT & LIFE CYCLE FOOTPRINT VIDEO (5 MINUTES)
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