Staffan Bolminger Environmental manager
Staffan Bolminger Environmental manager Älvstranden Utveckling AB Development company owned by the city of Gothenburg Implement Vision Älvstaden – River City Gothenburg • Inclusive • Dynamic • Green • Exchange experiences nationally and internationally • Ambitious environmental and energy strategy 2 Gothenburg in 1973 Eriksberg 1989 Eriksberg 1992 5 Eriksberg last week Kvillebäcken Hamnhuset CO2 emissions from 2000 dwellings in Kvillebäcken 1. Swedish standard (90kWh/m2, year) 2. Kvillebäcken today (60kWh/m2, year) 3. Kvillebäcken tomorrow Step by step towards energy efficient housing 2004 Parkhuset, 109 kWh/m2, year 2006 Höghuset, 99 kWh/m2, year 2008 Hamnhuset, 59 kWh/m2, year Four conditions 1. Good climate shell • Minimize energy losses! 2. Ventilation with recovery • Recycle energy! 3. Sun collectors • Use renewable energy! 4. Moisture safe • Always important – especially when you building energy efficient! 10 Most important - better profit! Prognoskostnad (kr/kvm, år ett) Hyresintäkt eller -bortfall 1 300,00 1 250,00 Energikostnad 1 200,00 1 150,00 Löpande drift och underhåll 1 100,00 1 050,00 Kostnad av reinvestering och utbyte 1 000,00 950,00 900,00 Kapitalkostna d av investering 850,00 800,00 Normhus F-syst Höghus F-syst Higher investment gives us higher interest – but energy costs decreases even more! Higher investment gives us better profit! Hamnhuset FTX This is the first year and no prediction – we know energy prices and interest costs 60tons lower carbon dioxide emissions/year g CO2/kvm, år (fjärrvärme och miljömärkt el) 70% lower CO2 emissions compared to Swedish standard! 8 000,0 7 000,0 6 000,0 5 000,0 4 000,0 3 000,0 2 000,0 1 000,0 0,0 Normhus F-syst Höghus F-syst Hamnhuset FTX And higher CO2 emissions due to more materials and more transports are ”repaid” in three years! CO2 emissions from 2000 dwellings in Kvillebäcken 1. Swedish standard (90kWh/m2, year) 2. Kvillebäcken today (60kWh/m2, year) 3. Kvillebäcken tomorrow Including cars… And a Worst Case Scenario 1. Swedish standard (90kWh/m2, year) 2. Kvillebäcken today (60kWh/m2, year) 3. Kvillebäcken tomorrow 4. Worst Case Scenario Thank you! Staffan Bolminger 031-779 96 35 [email protected] e @SBolminger
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