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Thinking green. Building smart.
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SLOVENSKÁ RADA PRE ZELENÉ BUDOVY SLOVAK GREEN BUILDING COUNCIL
THINKING GREEN
BUILDING SMART
Why buildings?
How much time do we spend inside?
Over 93 percent
Construction Industry 7,5 trillion dollars – global output 2009
100 mil. employees
WHAT ARE GREEN BUILDINGS?
•Philosophy: more effective use of resources (energy, water, timber, building materials...)
•Goal: reducing negative impact on human health and the environment during the whole life-cycle of the building
•Through: ideal position and orientation, creative design and
construction, use of suitable materials, energy and water savings, building management systems, building site and project management, recycling of materials
Green buildings save
Environment & costs
MARKET SITUATION
10. júna 2011
Worldwide trend
Energy crisis public pressure growing social responsibility new corporate strategies Slovakia
Gradual change of perception – brought mainly through international corporations, but also local companies What is needed
• owners/users, developers and investors' more positive view on energy efficient buildings • legislative changes and market flexibility
EUROPEAN FRAMEWORK
EU: 40% of energy used by buildings
EPBD II – EU Directive on energy performance of buildings „NEARLY-ZERO ENERGY BUILDINGS“
2019 – all new public buildings (or seriously renovated)
2021 - all NEW buildings must be „green“
Strategy 2020 20% less emissions of greenhouse gases compared to 1990 +
20% less energy + 20% energy from renewable sources
(predictions based on current situation – only about 10%)
Market development in Slovakia towards
really sustainable construction
Education of experts and public awareness (advantages,
market possibilities...)
Supportive legislative changes & financial mechanisms
(international development, EPBD)
SKGBC MAIN GOALS
Green Building Councils
• Business Driven
• Provide frameworks for business opportunity
– Definition of Green Building (Rating systems)
– Educate and inform
• Grow the Green Building market place
• Translate the value to governments
– Environmental – Waste, GHG, Resources
– Energy Supply/Demand and Security
– Skills/Jobs/New business opportunities
GBC Network Today
REASONS
Political pressure – e.g. EPBD II
Social responsibility - consideration towards
environment and people (tenants, inhabitants,
employees)
Economic sense – savings on utilities, higher real
estate value ...
SUSTAINABLE DEVELOPMENT
(Healthy communities)
(Viable Economies)
(Natural Environment)
WHICH ONE IS GREEN?
OR THIS ONE... ?
COMPREHENSIVE VIEW Energy savings
+ Tied to the economy
and
society
+ Aesthetic aspect
CERTIFICATES =
SUSTAINABLE BUILDING LABEL
Today, we are used to
- energy rating of appliances
- nutritional values on food
...so why not buildings?
Building Certificates Worldwide
Rating Tools:
Internationally used (LEED, BREEAM, DGNB)
National (Green Star – AU, VERDE – ESP...)
Localised versions (Breeam NL, SBTool.CZ...)
Building types (Residential, office, business, industrial...)
Bureacratic systems (LEED...)
Complex and comprehensive (DGNB...)
Tentative steps towards a unified system
Harmonisation of sustainable building standards -
CEN/TC350
Rating tools consider mainly:
Use of resources:
Primary energy
Water use
Also:
Quality of Environment Inside
Air quality
Thermal comfort
Emissions/Waste
CO2 emissions
Construction waste
Further waste produced (change of purpose, demolition)
RATING TOOLS
What? Why? How?
Raising the quality of construction...
Objective assessment…
Measurable/Comparable results...
A real rise in construction quality?
Reflecting time and market conditions
What was the starting point?
Not just a marketing?
Seeing is believing
“Architecture is sustainable
only if it is also beautiful!”
Prof. Robert Špaček, STU
WHAT IS A PRETTY GREEN
HOUSE?
OR...?
Hotel in the Italian Alps
>>> BREEAM, DGNB, LEED ...
DEFRA Lion House, Alnwick Northumberland, UK
DEFRA Lion House, Alnwick Northumberland, UK
New building of the local agency of Department of Environment, Food and Rural Affairs (DEFRA)
British Gov Strategy – min. BREEAM „Excellent“ for all new public buildings
Lion House „Outstanding“ > 85%+
New building “more economical”, reconstruction too complicated (asbestos removal) – r. 2006
DEFRA Lion House, Alnwick Northumberland, UK
BASIC FACTS:
Finished building
1515 sq.m.
BREEAM rating: 87,28%
Energy certificate A+
DEFRA Lion House, Alnwick Northumberland, UK
ENVIRONMENTAL FEATURES:
Maximum reduction of CO2 emissions through materials, construction process, management
Renewable energy (solar, wind) – supplying to the grid
Energy and water management
Recycling of the construction materials
Biomass heating plant, rain water reuse
Combined ventilation – natural/low energy fans (“green/red light” on the ceiling )
DEFRA Lion House, Alnwick Northumberland, UK
ECOPOINT OFFICE CENTER KOŠICE, SR
EcoPoint KOŠICE
• Pre-certificate DGNB Silver (2011)
• Phase I expected: mid 2012
EcoPoint KOŠICE
• Rentable space 16 000 sq.m.
• 70% cheaper heating and cooling
• Active concrete core – heating and cooling elements encased in the ceiling
• Heat pumps
• Ceiling height 3,0 m
• Double floors, anti-static carpets
• Automatic ventilation and openable windows
SPAR SUPERMARKETS AUSTRIA
• Spar Murau
• DGNB Gold (2010)
• Spar Vienna
• DGNB Gold (2010)
• Both finished 2010
SPAR SUPERMARKET MURAU
SPAR SUPERMARKET MURAU
• Passive standard & sustainable materials
• All cooling boxes with doors
• Cooling system with CO2
• Innovative LED “row-lights” (Zumtobel)
• LED lighting everywhere, including fridges
• Solar panels for hot water
SPAR SUPERMARKET WIEN
SPAR SUPERMARKET WIEN
• DGNB Gold – 2010
• Real estate: 85.80%
• Environmental quality: 96.60%
• Economic quality: 82.00%
• Socio-cultural criteria/Funkcionality: 77.20%
• Technical quality: 89.10%
• Process quality: 81.50 %
• Site: 89.50%
EMPIRE STATE BUILDING NEW YORK
LEED for Existing Buildings GOLD 2011
EMPIRE STATE BUILDING
80-year 102-storey building in the centre of NY
Largest enviromental upgrade in the U.S.
Almost 40% less energy
Renovation cost 550 mil. USD
ROI for energy upgrade – 3 years
42nd floor – 325 sq.m - LEED Platinum for Commercial
Interiors
EMPIRE STATE BUILDING Energy saving solutions:
Annual energy savings – 4,4 mil. USD
105 000 tonnes CO2 / 15 years
CO2 neutral building: 2-year contract with Green
Mountain Energy (wind turbines) – 100% energy
Other:
water saving elements, recycling, eco-materials
EMPIRE STATE BUILDING
6514 windows – on-site, recycled window panes 2,5 - 4x more effective, savings - 2300 USD / window EMPIRE STATE BUILDING GOES GREEN – YOU TUBE
EMPIRE STATE BUILDING SKANSKA HQ
32nd floor- 2230 sq.m.
LEED for Commercial Interiors Platinum 2009
90% nat. light, 99% direct view
Almost 50% energy savings
5-year ROI
