sustainable buildings


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sustainable buildings

  1. 1. Riding the Green Wave….Improving Building Performance
  2. 2. Megatrends pose urgent challenges to cities CO2 1% 50% 75% 75% of the of the of the of CO2 earths world’s worlds emissions surface population energy
  3. 3. Why Buildings? 40% of the world energy consumption* 21% of the global GHG emissions*** Industry Industry 11 (Primary 22 Buildings Mobility energy) 13 28% Buildings (Electricity) 41% Forrestry 14 % 8 Buildings Industry (Primary 31% 14 energy) Agriculture 18 Waste Mobility/Transportation Energy accounts for 40% of the building operation cost** Cost 20% 80% Year 1 - 2 2-5 20 - 40 0-1 Design Build Operate & Maintain, Renovate & Revitalize Deconstr.*International Energy Association, auf weltweiter Basis, im Jahr 2002 / ** Dena Congress, Berlin, 2008 / *** „Global Mapping of Greenhouse Gas Abatement Opportunities up to 2030”, Building Sector deepdive, June 2007, Vattenfall AB, basiert auf Information von IEA, 2002, % der weltweiten Treibhausgasemissionen; Total 40 Gt CO2e
  4. 4. People lookStudents for don’t Desktop transparentswitch off wallpaper windows for the about morelights/AC deficiency sunlightonce the in -Trishnaleave the resources Architect class hits me Student-Krishnan - Poonam WaterWe School Infosys wastage/ We have to Electricity call water wastage is Maintaining tankers high at clean floors every next room level is a difficult I really wish day -Richard task we to use what - Sashidhar Woodstock need to we waste Rao Shakti invest a lot -Siddarth Society -Roshan Lemon Grass Forum
  5. 5. Common Issues For Owners And Operators of Buildings/Facilities• Energy Consumption Cost Reduction – consuming the least amount of energy while still performing the core mission• Energy Unit Cost Reduction – buying energy at the lowest unit cost available• Energy Cost Stabilization – operating expense predictability and stability• Infrastructure Renewal – replacing aging building/facility systems• Capital Fund Preservation – use capital funds for core business activities• Environmental Responsibility - consuming natural resources and managing waste production in an environmental friendly way.
  6. 6. Existing Technologies That Can Make A DifferenceAccording to International Energy Agency: (1)  Modern heating boilers achieve fuel savings of up (2) to 40%$1 investment on energy efficiency =  Compared to low-temperature boilers, the combination of condensing boiler and solar plant $2 investment in electricity supply reduces fuel consumption by about 30%  Modern chillers require only about 50% of the energy consumed by old centrifugal machines  Running on alternative fuels (e.g. natural gas) when electricity prices are high  The life expectancy of energy-saving lamps is 15 times that of conventional incandescent bulbs, LEDs 50 times and using about 80% less energy  If 30% of all incandescent bulbs were replaced by energy-saving lamps worldwide CO2 emissions would drop by about 270 million tons p.a.  The systems ensure demand-dependent control and management of all technical building systems while giving consideration to the building‘s usage requirements  Advanced building automation and control systems offer energy savings of 20 to 40%(3)
  7. 7. New Technologies That Can Make a Difference Solar heat Geothermal energy and Combined heat and Wind power 1 and solar power 2 heat pumps 3 power plants (biomass) 4 © Source: Bio co-generation plant at Braunschweig airport Small, light installations  50% efficiency  25% energy is required to  In 2007, co-generation plants in produce 100% heat output Germany produced 21 GW (12%) Easy to install on roofs  50% increase in solar heat in of all electrical power generated Germany in first half of 2008  38% less CO2 emissions Produce up to 10,000 kWh p.a. compared to gas heating, and  In Germany, the potential of co-  Cristalline silicon solar modules 57% less compared to oil heating generation plants that could be Produce enough electricity for convert 13 to 18% of solar economically used amounts to 2 low-energy houses or one energy to electrical power  Only 40% of operating about 57% of all electrical power office with 20 workplaces costs of a typical gas heating generated  Thin-film solar modules have system efficiencies of 5 to 8%  Bio co-generation plants produce 70% less CO2 than conventional power plants (5) Efficient and distributed energy generation is a realitySources: (1) Der Spiegel, “Ökologisch bedacht”, 1.9.2008 / (2) Bundesverbandes Solarwirtschaft (BSW-Solar) / (3) Bundesverband WärmePumpe (BWP) (4) Jahrestagung, Bundesverband Kraft-Wärme-Kopplung(B.KWK), Berlin, Nov 2007 / (5) VDMA Power Systems, „Markt für Biogas-Technik fällt in Dornröschenschlaf zurück“, 17.12.2007
  8. 8. Utilize Existing Technologies to Measure Building Efficiency and Increase AwarenessEnergy Consumption Dashboard Green Touch Screen Energy Star Benchmarking
  9. 9. Behavior Modification That Can Be Impacted EngineerExecutiveEasily tracking progress against energy goals High level monitoring of complex data and understanding of critical issuesOccupant PublicEducating and motivating building stakeholders Strengthening education to promote communityto reduce energy consumption awareness
  10. 10. Proven Business Models to Implement Energy Efficiency Projects in Buildings Energy Services Company Industry ….Thousands of Projects, Tens of Thousands of Buildings, Billions in Savings Faster Design, Efficiency Performance isFocused on Efficiency Leverages Capital Funds Quicker to Completion Measured & Managed Impactful to Can Create Pays back Results are Sustainability! Jobs Quickly! from Savings! Guaranteed!
  11. 11. Rethinking Building Design Smart Buildings Future Buildings A safe, secure, reliable, and comfortable facility that integrates and optimizes supply, demand, operational, and sustainability strategies that maximizes life-cycle value.Net Zero Energy / Net Zero Carbon Self-sufficient Buildings
  12. 12. Actions to Accelerate the Implementation of Efficiency & Sustainability Green Buildings and Sustainability are Competitive Differentiators – Embrace1 the Paradigm Shift2 Adopt a Holistic Approach to Energy Efficiency and Sustainability3 Use Life-cycle and Environmental Impacts in addition to ROI Analysis4 Join the Multi-stakeholders Discussions on Policy and Regulations5 Require Supply Chain Partners to have Sustainability Programs6 Every Organization Needs to have a Chief Sustainability Officer7 Do Your Part as an Individual
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