Goals

Aiming

to create one of the most energy efficient buildings in Greece

The project “Passivistas: Τhe Τavros project” aims to create one of the most energy efficient buildings in Greece but it also aspires to have a greater impact on three fundamental pillars. Not only during the construction phase but for the five following years the project intends to become a successful case study regarding environmental, social and economic aspects of such an effort.

01

Enviromental

The heating demand of the building is projected to decrease by 90% compared to the state before the refurbishment. Heated only by means of electric energy. The heating demand before the refurbishment has been calculated with indoor conditions from 20 to 25 Celsius degrees.

The energy generation of the solar panels is expected to exceed the overall energy needed for the operation of the building leading to supply the grid with more clean energy compared to its usage.

DECREASE BY 9O%

Before & After renovation

No Data Found

DECREASE BY 9O%

Before renovation

No Data Found

After renovation

No Data Found

DECREASE BY 9O%

Before & After renovation

No Data Found

It is estimated that the equivalent CO2 emissions will be reduced by almost 80%. The surplus of energy from the solar panels will lead to a negative balance of CO2 emissions, meaning that its carbon footprint will be practically eliminated.

REDUCED BY 8O%

CO2 Emissions

No Data Found

REDUCED BY 8O%

CO2 Emissions

No Data Found

02

Social

Quality of Life

The endeavor will affect first and foremost the users of the building, whose quality of life is going to be improved to a very large extent. Energy poverty, which affects a large proportion of people in Greece, will no longer be an issue as the building will operate continuously between 20 and 25 °C, regulating simultaneously the relative humidity (35-55%) and CO2 levels (below 1000ppm) leading to supreme indoor air quality.

Living Lab

The building will operate as a living lab for highly energy efficient buildings for the next five years. With the consent of the users, educational visits and demonstration will be carried out throughout the refurbishment process and the operation for different stakeholders, including students, engineers, tradespersons and the general public, aiming to spread the word and inspire similar projects all around Greece.

250 Similar Buildings

Located in an area with more than 250 similar buildings, the project is the perfect example of a fast and economically efficient retrofit project and, through repetition, the municipality and all related authorities can establish a viable framework for the renovation of the buildings providing a better living condition to more than 4500 citizens.

03

Economic

The users of the building are going to be the most immediately economically affected by this project. While all around Europe the energy costs have increased dramatically over the last months, the users will be no longer affected by energy prices as the overall energy is covered by the renewable energy systems installed on the building.

Apart from the building itself, the whole area has been studied in effort to reveal the huge potential for stakeholders of the construction industry and energy providers. The aim is to create a feasible investment scheme, which can be implemented repetitively all around Greece.

In the following graph you are able to see the energy cost for the multifamily house in three different scenarios.

Scenario 1

The energy cost while the building has an indoor temperature from 20 to 25 Degrees.

Scenario 2

The energy cost while the indoor temperature is from 16 to 28 Degrees.

Scenario 3

The energy cost after the renovation while the indoor temperature is from 20 to 25 Degrees.

BEFORE & AFTER

Energy Cost (Energy price is calculated using a reference price 0.25€/kWh)

No Data Found

BEFORE & AFTER

Energy Cost (Energy price is calculated using a reference price 0.25€/kWh)

No Data Found

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