KS ENERGY AND SUSTAINABLE DEVELOPMENT

GROUP 2.3: LARISSA HAMILTON MANUEL PÖLLINGER CHRISTIAN UNTERBERGER

Re-inventing buildingsVisions for future building

design

Introduction

Buildings play an important role in our society

Austria: nearly 40% of final energy used in buildings

Around 80% for providing thermal energy services

Changing buildings – key element for improving our energy system

Passive Houses

What makes it different to “normal” buildings:

1.Special insulation

2.Specific Heating System

3.Particular Ventilation System

Passive Houses- Insulation

Passive house insulation vs. normal house insulation

Passive Houses- Insulation

Consists of very thick walls

Stuffed with mineral fibrous insulating material

Conventional walls consist of bricks

Insulating double or triple glazed windows

Single glazed windows energy wasting installation

Passive House -Heating

Heat pumping systems

Solar heating system for heating water

Heating by electricity which is generated by photovoltaics

Passive House-Ventilation Systems

Nearly airproof covering due to insulation

Air renewal rate between 0,3 and 0,5 ( measures how much air renewed within one hour)

Plus Energy Houses

Low need of energy

Energy not supplied by electricity

providers

Higher self-production of energy than use

100-percent regenerative energy supply

and emission-free process

Excess of self-produced energy fed into

public network

Plus Energy Houses - Functionality

“Save energy and produce a surplus of electricity, rely on solar power and only use

regenerative energy!”

Plus Energy Houses – Implemented Samples

The Heliotrop The “solar settlement” in Freiburg