Energy-supplycontractingforablockofflats ELCOensuresmoreenergy andcostefficiency Thepropertytoberenovatedwasablockofflats intheBerlindistrictofKreuzberg.Theproblemwas anobsoleteheatingsystemwithexcessiveenergy consumption.Renovationoftheheatingsystem wasurgentlyrequired,ononehandtosaveenergy, andontheotherhandtoincreaseconvenience. Thehousingadministrationdecidedonenergy- supplycontracting.Thecontractwasawarded toGASAGWärmeService(GWS)fromBerlin.The GWSchoseanadvancedsolutionfromELCO: theRENDAMAX3406andRENDAMAX3408.The systemwasputintooperationattheendofthe year2009. Thankstotherenovationmeasurescombinedwith ahigh-performanceblock-typethermalpower station,itwaspossibletosignificantlyimprovethe energybalanceoftheblockofflats.Thisresulted insavingsof19%. Customer GASAGWärmeServiceGmbH Reichpietschufer60 D-10785Berlin Executing technical partner Mercedöl-Feuerungsbau Hauptstraße56-60 D-13158Berlin(Pankow) Efficiency • Reduction of operating costs • Quick amortisation through energy savings and reduced operating costs • Efficiency 96 % Convenience • Leading-edge technology • Compact construction, low space requirement BENEFITS • Extremely low emissions and quiet operation • Flexible adjustment of power through wide modulation range Reliability • Secure financing of the new heating solution through energy-supply contracting • Reliable operation over many years