Passive House examples around the world

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1 Passive House examples around the world Camille Sifferlen

Passive House Worldwide Passive House Institute Climate No Region Heating

5 Warm 6 Hot 7 Very hot Climate independent definition based on physical

be guaranteed by post-heating or post-cooling the fresh-air flow required

2 Passive House Worldwide Passive House Institute Climate No Region Heating climate Cooling climate 1 Arctic 2 Cold 3 Cool-temperate 4 Warm-temperate 5 Warm 6 Hot 7 Very hot Climate independent definition based on physical laws A Passive House is a building in which thermal comfort [ISO 7730] can be guaranteed by post-heating or post-cooling the fresh-air flow required for a good indoor air quality. Component requirements for each climate zone

3 Mexico City (warm) First Passive without heat recovery 2014 Mexico City, Mexico INHAB ID 2959 Moritz Bernoully

12 W/(m 2 K) g -value = 38 % ID 2959 Moritz Bernoully Exhaust ventilation Cross natural ventilation Heating demand: 15

4 Mexico City - Details Taller Passivhaus México, S.A. de C.V. U-value wall = 0.37 W/(m 2 K) U-value slab = 0.33 W/(m 2 K) U-value roof = 0.36 W/(m 2 K) Double low-e glazing U w -value = 2.12 W/(m 2 K) g -value = 38 % ID 2959 Moritz Bernoully Exhaust ventilation Cross natural ventilation Heating demand: 15 kwh/(m 2 a) Heating load 18 W/m 2 Overheating frequency 5.7% (T > 25 C) Airtightness n 50 = 0.59 /h ID 2959 Moritz Bernoully Primary energy requirement 113 kwh /(m 2 a)

SEEDpass project Authors: Petra Kondres Tomažić, OIKON Ileana Iannone & Francesco Nesi,

6 Castiglione (warm-temperate) CASA CAROSSO 150m² Source: Studio Carosso

7 Castiglione U values U-value wall = W/(m 2 K) Thermal envelope Airtightness layer U-value roof = W/(m 2 K) U-value slab = W/(m 2 K) Source: Studio Carosso

Heating demand: 11 kwh /(m 2 a) Heating load 12 W/m 2 Cooling demand: 5 kwh /(m 2 a) Cooling

8 Castiglione Details Triple low-e glazing Uf= 0,82 W/(m2K) U w -value = 0.86 W/(m 2 K) g -value = 58 % Ventilation efficiency 84% Heat Pump + Radiant Floor Heating Heating demand: 11 kwh /(m 2 a) Heating load 12 W/m 2 Cooling demand: 5 kwh /(m 2 a) Cooling load 11 W/m 2 Airtightness n 50 = 0,5 / h (interior plaster) Primary energy requirement 72 kwh /(m 2 a) Source: Studio Carosso

9 Athens (warm) 115m² Stefan Pallantzas Msc. Civil Engineer NTUA President of HPHI CPHD, Building Certifier

Athens Envelope BEFORE U-value wall = 1.

10 Athens Envelope BEFORE U-value wall = W/(m 2 K) U-value slab = W/(m 2 K) U-value roof = W/(m 2 K) AFTER U-value wall = W/(m 2 K) U-value slab = W/(m 2 K) U-value roof = W/(m 2 K) Limit existing thermal bridges! Ψ old = W/(mK) Ψ= W/(mK) Ψ= W/(mK) Stefan Pallantzas

11 Athens - Windows Before Stefan Pallantzas BEFORE Single glazing After Stefan Pallantzas AFTER Triple glazing U w -value = 0.92 W/(m 2 K) g -value = 54 % Stefan Pallantzas Stefan Pallantzas

12 Athens - Ventilation Stefan Pallantzas Stefan Pallantzas Stefan Pallantzas Ventilation efficiency 93% Subsoil Heat Exchanger with Effective efficiency = 64% Direct electrical heating installation

13 Athens - Conclusion BEFORE Heating demand 301 kwh/(m2a) Heating load 129 W/m2 Cooling demand 77 kwh/(m2a) Cooling load 68 W/m2 Estimated airtightness n50 = 5.00 /h

14 Athens - Alternatives 15 kwh/(m²a) 10 W/m² 10 cm of external insulation + double-glazed windows 20 cm of external insulation + double-glazed windows with a high g-value 15 cm of external insulation + triple-glazing Ug = 0.5 W/(m2K) g-value of 0.54

15 Athens Air quality Monitoring & public info Give the users the data they need! Stefan Pallantzas

16 Athens - Monitoring Measurement results: PHPP is right FINAL ENERGY CONSUMPTION DEC 2015-JULY 2016 (KWh) Month PHPP MEASURED HEATING PHPP HEATING MEASURED COOLING PHPP COOLING MEASURED DHW PHPP DHW MEASURED DEC 589,07 414,96 294,00 263,82 114,14 96,24 JAN 677,07 602,35 414,00 367,45 82,35 50,34 FEB 625,39 339,80 393,00 206,57 63,56 57,87 MAR 379,07 339,80 184,00 141,35 14,12 12,08 APR 197,23 151,35 22,00 5, MAY 181,63 205, , JUNE 221,90 197, ,67 35, JULY 316,07 246, ,00 55, SUM 3.187, , ,00 979,19 183,67 91,46 274,17 216,53 KWh/m2 TFA 27,81 21,80 11,40 8,54 1,60 0,80 2,39 1,89 Euros/day 2,35 1,84 0,96 0,72 0,14 0,07 0,20 0,16 Total Winter Cost 122,14 Total Heating Cost 88,13 0,72 PER DAY Total Cooling Cost 8,23 Total Summer Cost 39,98

17 Athens Cost-effectiveness TFA 115 m² Energy price 1st year 0,172 /kwh Annual cost increase 5,00 %year Inflation 1,00 %/year Real annual cost increase 3,96 %/year Time period 10 years It is cost-effective! energy consumption for heating of existing house per m2 300 kwh/(m²year) Total Energy Consumption kwh/year energy costs 1st year /year energy consumption for heating after retrofit 11 kwh/(m²year) Total energy consumption kwh/year energy costs 1st year 218 /year Stefan Pallantzas Additional Retrofit Costs /m2 400 /m² Total costs Financing the additional cost Time Period 10,00 years nominal annual interesr rate 4,00 %/year real interest rate 2,97 %/year Annuity a 11,71 %/year Annual costs of financing 5.403,16 /year Old building PH Retrofit (loan+energy costs) PH Retrofit (energy costs)

18 englisch Vienna Austria April 2017 with exhibition, workshops and excursions WienTourismus MAXUM, Hofburg Heldenplatz Speaker: Camille Sifferlen 4 th Passivhaus Portugal Conference

homes worldwide! www. passivehouse-international.

19 16 18 June 2017 MID-YEAR PASSIVE HOUSE DAYS PASSIVE HOUSE DAYS November 2017 Passive House residents open their homes worldwide! www. passivehouse-international.org Speaker: Camille Sifferlen 4 th Passivhaus Portugal Conference

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