Click to edit Master title style Pilot renovation project in Estonia Targo Kalamees, Kalle Kuusk, TUT H2020 MORE-CONNECT 1st Meeting (Kick-off) 2015 January.

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Click to edit Master title style Pilot renovation project in Estonia Targo Kalamees, Kalle Kuusk, TUT H2020 MORE-CONNECT 1st Meeting (Kick-off) 2015 January 12 and 13

General description Prefabricated concrete large panel element Typical soviet series apartment building: solutions and results are easily to disseminate Construction date1986 Number of stories5 Net area3824 m 2 Heated area3306 m 2 Living area2769 m 2 Number of apartments80

Current energy use (HDD Tallinn = 4220 ºC∙h) Average Delivered energy, kWh/(m 2 ·a) Space heating Domestic hot water Electricity Primary energy, kWh/(m 2 ·a) New building Low en. building nZEB Major renovation  … … … … … … 340  341 Primary energy, kWh/(m 2 ·a)

Preliminary estimation about renovation solution Building envelope:  Exterior wall:U  0,12 W/(m 2 K)  Basement wall:U  0,17 W/(m 2 K)  Roof:U  0,10 W/(m 2 K)  Windows:U  0,80 W/(m 2 K)  Basement ceiling:U  0,26 W/(m 2 K)  Insulation of loggias  interior heated area Ventilation: balanced ventilation with HR in each apartment Heating: radiators, thermostats, renovation of heat centre Solar collectors for DHV on roof PV for electricity on facades MORE-CONNECT engine: in loggia or on roof

Preliminary estimation of energy use Current useStandard use NowMoreCon.NowMoreCon. Net energy, kWh/(m 2 ·a) Space heating Ventilation Domestic hot water95 30 Appliances48 29 Fans, pumps0606 Produced energy on site, kWh/(m 2 ·a) Solar collectors (heat)0-240 PV panels (electricity)0-50 Delivered energy, kWh/(m 2 ·a) Space heating Ventilation Domestic hot water Appliances Fans, pumps0606 Primary energy, kWh/(m 2 ·a) Energy performance value = nZEB