Powerhouse - Partnerships for a greener future Brussel, 15 th of - - PowerPoint PPT Presentation

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 to use them.

Vision

• Profitable interaction for a greener future

SmartTransport SmartEnergy SmartGovernance

Some projects

Carpooling Cycling challenge Hamang

• Smart

Parking Big Data Car sharing EV’s City Bikes Fornebu Smart Traveling Powerhouse Hydrogen

Dag Christer Øverland Property Developer

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%

It is not sufficient to focus on new construction and refurbishment alone:

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

• 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.

• 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

500

bicycle parking 10 charging stations for electric vehicles parking 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 Bernhard

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

• 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

• 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.

• 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 after

Example: 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

• average

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:

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

«Powerhouse Kjørbo is most likely the most energy efficient renovated building in the world»

Thank you for your attention!

!