Skanska Commercial Development Nordic (CDN) Team

Building name: Hagaporten 3

Location: Solna, Stockholm, Sweden

Latitude/Longitude: 59° 21' 48.30'' N / 18° 1' 22.43'' E

Designers: Skanska Commercial Development Nordic (CDN) Team

Construction: 2006 - 2008

ABSTRACT

The Hagaporten 3 building was the first project to be registered with the European Union’s Green Building Programme. The Design and construction were made to minimize environmental impacts. Also the Hagaporten 3 is supplied in part by renewable energy, has a beautiful green roof and inside the building has a healthy environment for the occupants. Hagaporten 3 is a six floor office building containing 30.000 m² of office space and an underground parking for 500 vehicles. Also has an entrance level containing a restaurant and conference facilities.

1 INTRODUCTION

The Hagaporten 3 Office Building is located in Solna, northern Stockholm, more precisely, situated by the E4 motorway. The building has an impressive architecture with graphical concrete and glass facades, according with Skanskas (2008), Hagaporten 3 is a comercial office consisting of six above ground floors, and an entrance level, which includes conference facilities and a restaurant. “The office floors consist of an outer ring of open planned office space and an inner ring with meeting rooms and communal space, located around a ‘light’ garden at the centre of the building.” (SKANSKA, 2008). Also, Yudelson (2013) says that communal areas in the inner ring are designed to encourage spontaneous meetings and casual social interaction.

The project designers are the Skanskas Team, a team that is a partner of the Green Building programme, a voluntary initiative aimed at improving the energy efficiency of non-residential buildings in Europe. The construction time, was about two years, starting in 2006 and finishing in October 2008.

‘Hagaporten 3, is an energy efficient “climate smart” office building project, which prioritised environmental and safety considerations during construction.” (SKANSKA, 2008). Which means that consumes less energy and releases less carbon dioxide per m2 than the average Swedish office building. The project has contributed toward sustainable urban planning using an underused piece of land.

2 ENVIRONMENTAL ENGINEERING SYSTEMS

Hagaporten 3 was designe to be one of the most green buildings of Europe, a “climate smart” building aligning sustainable architecture and energy sources to the environmental engineering systems such as HVAC, Lightings and renewable systems.

2.1 Energy Sources and Main Plant items

According to Skanska (2008), The electricity, heating and cooling supplied to Hagaporten 3 are environmentally certified and sourced from renewable energy sources. As Ellabban (2014) states, renewable sources is known by the energy that replace conventional fuels, as fossil fuel, coal and natural gas. Also is a greener energy that comes from natural sources such as rain, waves, water, sunlight, etc.

100 percent of the building is supplied with hydroelectric power, a renewable and clean fuel source that won’t pollute the air, according to Maehlum (2012), only in the construction of the power plan that occurs pollution, during the energy generation there is no pollution, it’s a clean energy.

2.2 Heating Ventilating and Air Conditioning Systems

“The ventilation system is equipped with a low-speed high-efficiency air handling unit also the system far exceeds the air exchange requirements of the Swedish building code and ensures good indoor air quality” (SKANSKA, 2008).

According to Skanska (2008), the heating system recycles approximately 70 percent of the heat energy from outgoing air, furthermore, the system not only has an efficient heat recovery system, but also a surplus heat storage system. Additionally, the building has district heating and cooling systems, that according to Resaie (2011), brings many environmental benefits and also are more efficient than localised systems within the building.

Wood briquets and pine oil are primarily the fuel that supplies the treated wastewater and hot water boilers,