Energy Efficient Cities Initiative Practitioners Roundtable Discussion Stockholm City Malin Olsson, Stockholm City Planning Administration
The City of Stockholm 795 000 inhabitants (Stockholm Region 1.95 millions) 14 city districts 428 000 dwellings (ca 10 % in one-family houses) 1.86 person / dwelling 30 km x 20 km 188 km 2 4200 persons / km 2 40% green areas
Vision 2030 MULTIFACETED & FILLED WITH EXPERIENCES INNOVATIVE & GROWING THE STOCKHOLM OF CITIZENS + 150.000-180.000 inhabitants year 2030
City Strategy - build the city inwards reuse of already developed land preserve and develop the character develop semi-central areas develop suburbs good access - public transportation existing structures - local demands
Hammarby Sjöstad largest urban development project in Stockholm 160 hectare 10.000-11.000 new apartments and 200.000 m 2 new office space, retail, services etc. infrastructure projects construction period 1995-2017 20 billions SEK ($ 2,8 billions) the city invests 20 % today, about 2/3s completed
The Environmental Programme twice as good land use technical infrastructure; energy supply, water and sewage management waste management building materials public transportation, parking etc user participation
The Hammarby Model Energy Waste Water and sewage
Energy Combustible waste is converted into district heating and electricity. The heat from the treated wastewater is converted into district heating and cooling. Solar energy is converted into electrical energy or used to heat water.
Water & Sewage A pilot sewage treatment plant facility has been built to evaluate new sewage treatment techniques. Biogas is extracted from the digestion of sewage sludge. Rainwater from streets is treated locally/settled and then drained into Hammarby Sjö - not to the wastewater treatment plant.
Waste An underground automated waste disposal system reduces the transports in the area and makes it easy to sort the waste. As does a block based system of recycling rooms and area-based environmental stations. All recyclable material is recycled: newspapers, glass, cardboard, metals, etc.
Environmental Load Profile (ELP) The major reduction of environmental load stems from the buildings, real estate and the city district 12000 10000 8000 6000 4000 2000 0 Referens District Operation District Production Real Estate Operation Real Estate Production Building Dismantling Building Operation Building Construction Photochemical Ozone Creation (g C 2 H 4 eq.) Udde -33-38 % Kaj Lugnet 25000 20000 15000 10000 5000 0 Proppen Extraction of non renewable energy sources (kwh) Referens 600 500 400 300 200 100 0 Udde Referens -28-42 % Kaj Udde Lugnet Acidification (mol H + eq.) -23-29 % Proppen 160 140 120 100 80 60 40 20 Kaj Lugnet Proppen 0 Referens 200000 160000 120000 80000 40000 Udde 0 Water use (m 3 ) Referens -41-46 % Kaj Udde Lugnet Kaj Proppen Eutrophication (g O 2 eq.) -49-53 % Lugnet 4000000 3500000 3000000 2500000 2000000 1500000 1000000 500000 0 Proppen Referens 280 240 200 160 120 80 40 0 Global Warming (g CO 2 eq.) Udde Referens Udde -29-37 % Kaj Kaj Lugnet Radioactive Waste (cm 3 ) -27-40 % Lugnet Proppen Proppen (Source: Grontmij)
Environmental Index Transports of Indiviuals in Hammarby Sjöstad The extraction of non renewable energy sources has decreased with approx. 51 %* The emissions to air, land and water for the transports of individuals, have decreased with approx. 67 %, a result of improved public transports with the light rail * 1,2 1,0 0,8 0,6 0,4 Mode of Conveyance Reference No ferry and "Tvärbana" Today Hammarby Sjöstad light rail Car 35% 21% "Tvärbanan" Light rail 0% 34% Bus 50% 18% Bicycle 7% 9% Walk 8% 18% Extraction of non renewable energy sources 1,2 1,0 0,8 0,6 0,4 Emissions to air, land and water * Includes transports by car 0,2 0,0 Reference Hammarby Sjöstad 0,2 0,0 Referens Hammarby Sjöstad (Source: Grontmij)
Conclusions integrated planning municipal involvement clear vision and strategy organisation/ co-operation
Next step? Evaluation of the environmental programme of Hammarby Sjöstad Implementation in Stockholm s next large urban development New and improved environmental programme Improvement of the Environmental Load Profile Focusing on energy efficiency and reduction of greenhouse gas emissions