ENERGY EFFICIENCY IN THE BUILDING

SECTOR

Powerhouse -

Partnerships for a greener future

Brussel, 15th of June 2016

- A partnership between the municipality and the private sector in Bærum.

- The goal is to reduce energy use and greenhouse gas emissions through joint projects and co-operation.

- The solutions must be attractive in a way that makes citizens want touse them.

Vision- Profitable interaction for a greener future

SmartTransportSmartEnergySmartGovernance

Some projects

Carpooling

Cyclingchallenge

Hamang-

Smart ParkingBig Data

CarsharingEV’s

City BikesFornebu

Smart Traveling

Powerhouse Hydrogen

6

Dag Christer Øverland

Property Developer

Side 7

This is Entra ASA -Norway

• Leading property company in Norway

engaged in developing, letting and operating

attractive and environmentally sustainable

buildings

• 1.2 million square metres divided between

110 buildings. 90% office properties

40%

Buildings account for 40% of the

world`s energy consumption

It is not sufficient to focus on new construction

and refurbishment alone:

Side 9

Percentage

newbuildings

1,5%

Percentage

refurbishment

1,5 %

Entra`s environmental working:

• 1. Daily reduction of energy in all buildings

• 2. Total refurbishment of the oldest buildings

• 3. New green buildings

Side 10

Side 11

1. Daily reduction of energy in Entra`s

existing buildings

• Switching to LED light bulbs

• Upgrading central processing system (SD-

anlegg)

• New heat recovers (Varmegjenvinnere)

• Reduction of operating time:

- ventilation

- light

- heating

- cooling

Average reduction of 82 kilowatts pr.m2 gives 82 million kw/m2 in total each year.

12

2. Total refurbishment of the oldest buildings

Urban Mountain, Oslo

Technical data:

Area: 77,000 m2

Energy consumption: 60

kWh / m2 / year

Former energy: 258 kWh /

m2 / year

Sustainability:

Passivehouse

FutureBuilt

BREEAM NOR -

Outstanding

Energy Class A

Cradle2Cradle

OsloSolar

Technical data:

Area: 55000 m2

Energy consumption:

-5,8 kWh / m2 / year

Former energy:

Sustainability:

Plus house

FutureBuilt

BREEAM NOR -Outstanding

Energy Class A

Cradle2Cradle (C2C)

3. New green buildings

8500 m2 Photovoltaics (PV) to the south

Form follows enviroment:

We shape the building so it can produce as much energy as

possible.

COMMUNICATION

500bicycle parking

10charging

stations for electric vehicles

0parking spaces

for conventional

cars

Future Buildings

VISION OSLOSOLAR:

The world's most environmentally friendly urban building - that's gives

back to the environment and to the city's population.

Powerhouse -

Partnerships for a greener future

Peter BernhardSenior Consultant - Energy and Environment

Asplan Viak AS, Norway

Brussel, 15. June 2016

INTERDISCIPLINARY ARCHITECTURE AND CONSULTING COMPANY

Appr. 900 persons with expertise in:

• Architecture

• City and Area Planning

• Building and Construction

• Energy and Environment

• Geographic Information Systems and IT

Visualisation

• Landscape Architecture

• Communication and Transport Engineering

• Social Analysis and Evaluation

• Community Planning

• Technical Infrastructure

• Water Supply and Environmental Engineering

The Powerhouse collaboration

«Nobody can develop a Powerhouse plus energy building alone

– but together with our partners we can do it.».

Process and Methodology

New collaboration models with emphasis on interdisciplinary

collaboration – Integrated Design Process

Cooperation between all disciplines from day one

It has been essential for the team to work towards a clear

defined goal

Broad communication of the energy and environmental goals

Ambitious leadership

Dare to take risks and try new solutions

Definition of a Powerhouse

24

A Powerhouse is a building that during it’s lifecycle produces more

renewable energy than it consumes for production of building

materials, construction, operation and demolition of the building.

Additional criterias:

• The quality of produced energy should not be lower than bought energy

• Minimum passivehouse level (NS 3701)

• Appliances (PC, printers etc.) not included in the energy balance

• Embodied energy over the buildings lifecycle to be calculated in primary energy

• Shall be built within commercial market conditions

Powerhouse Kjørbo

Two office buildings

Originally built: early 1980’s

Area: 5,180 m2 total

Project start: January 2012

Completed: April 2014

Objectives

Keep the expression of the building

Renovate to an energy positive building

(energy use for appliances not included in the

energy budget)

Build within commercial market conditions

BREEAM-NOR «Outstanding» – the highest of

the five levels of this environmental

classification system

before …

….after

before …

…and afterExample:

Activity Based Workspace (ABW)

…and after

Energy concept

Consequent reduction of energy demand

Exposed concrete in ceiling for heat

storage

Energy wells supply heat and free cooling.

Recycling of heat from server room.

Two heat pumps operating at different

temperatures.

Local production of electricity

Energy performance

Energy label A

Building code 2010

Energy label C

Before renovation

- average

Norwegian office

building

Minimize embodied energy - Materials

The buildings’ structural systems remained

Materials such as old glass façades have been reused

All new materials were carefully chosen to ensure that the

materials had low embodied energy.

Energy dash board – Solar production and

energy consumption

1. Jan - 11. June 2016

Hydrogen fuel station - PV-powered

Powerhouse Brattørkaia, Trondheim

New office building

13.000 m2

Appr. 500 workplaces

More information about Powerhouse Kjørbo

Brochure in English can be downloaded from

Video in English:

https://www.youtube.com/embed/JGYu1lp5tu

0

http://www.powerhouse.no/en/prosjekter/kjorbo

/

«Powerhouse Kjørbo is most likely the most

energy efficient renovated building in the

world»

Mats Mysen, senior researcher at SINTEF Building and

Infrastructure Source: Fremtidens Byggenæring - 13

Thank you for your attention!

!

Asplan Viak AS

www.asplanviak.no

pb@asplanviak.no

+47-4040762