Future Buildings and Renewable Energy project update

Future buildings and renewable
energy OULU –
Update 2015
Pekka Seppälä, Lauri Mikkonen
19.11.2015
Average temperature and precipitation
(1981- 2010)
Reference: Ilmatieteenlaitos.fi
Pekka Seppälä, Lauri Mikkonen
19.11.2015
Solar irradiation
• Annual solar irradiation on
horizontal plane in Oulu is around
890 kWh/m2, which nearly
matches with conditions in
Northern Germany
• The amount of solar irradiation is
greatly dependend on seasons
Reference: PVGIS
Pekka Seppälä, Lauri Mikkonen
19.11.2015
Biomass and water
• 75 % of land area of
Finland is forest (2306
million m3 of wood)
• Annually 104 million m3 of
wood grows (less than
used)
•
•
The target is to increase the
use of forest to produce 25
TWh of energy by 2020
3 100 MW of hydro power
installed nowadays (10 – 20 %
of electricity production)
Reference: Energiateollisuus
Pekka Seppälä, Lauri Mikkonen
19.11.2015
Wind conditions
In the end of 2013, 448 MW of wind
power installed, producing 777 GWh of
energy (0,9 % share of electricity
consumption in Finland).
Reference: Energiateollisuus and Tuuliatlas
Pekka Seppälä, Lauri Mikkonen
19.11.2015
Energy end use 1970-2013
Other
Traffic
Heating of
buildings
Industry
Total
Reference: Tilastokeskus
Pekka Seppälä, Lauri Mikkonen
19.11.2015
Building energy usage
Other el. Devices
6%
Energy use of living in 2012
Sauna
4%
Cooking
1%
Hot water
12 %
Lighting
3%
Energy source in buildings in 2012
Heating
74 %
Electricity
34 %
About 17-20 % of district heat and
electricity in large scale centralized
power plants is produced by peat!
Other
1%
Heat pump
6%
District heat
29 %
Wood
23 %
Light petrol
7%
Reference: Tilastokeskus and Energiateollisuus
Pekka Seppälä, Lauri Mikkonen
19.11.2015
Oulu Building Supervision
• Every new building in Finland needs a building permit given by the
building supervision office  a thousand dollar chance to change
things!
• The responsibility of BSOs in Finland is to control that houses will be
built according to law, rules and city plan.
Goals:
· Produce measureable added value to our customers and help customers
·
·
·
·
Give advices to customers and to have willingness to be co-operative
Spreading of information
Development work together with designers and builders
Create a network with local, national and international actors
Pekka Seppälä, Lauri Mikkonen
19.11.2015
Tools
 Quality control
 Pientalolaatu – application
(www.pientalonlaatu.fi)
 Technical cards/Quality cards
Keyword: Predictability
Pekka Seppälä, Lauri Mikkonen
19.11.2015
Project target
• The goal of the Future Buildings and Renewable Energyproject is to create common operating models to builders
and to exchange and implement the best renewable
energy and energy efficiency practices generated during
the pilot project.
• The joint project is intended to intensify the development
of renewable energy technologies and to promote the
spreading of successful solutions to other cities, to the
whole country and to develop them into business models.
• Companies and educational institutions can develop their
products and execute research.
• Continues previous projects (IEEB, RESCA).
Pekka Seppälä, Lauri Mikkonen
19.11.2015
Pilot area
• Platform for testing novel innovative products and
solutions
• Living lab - User experience and information about the
operability of new solutions will be collected
• Energy solutions and technologies can be compared
efficiently in the pilot area
• Novel information will be created in the pilot area. Best
practices, which can respond to the challenge of
developing construction and future zero-energy buildings
will be identified, assessed and implemented.
Pekka Seppälä, Lauri Mikkonen
19.11.2015
Quality path for future buildings
Pekka Seppälä, Lauri Mikkonen
19.11.2015
Location of the pilot area
Pekka Seppälä, Lauri Mikkonen
19.11.2015
Builder selection
•
•
Builders had freedom to present the level of energy efficiency that they are reaching for
3 different selection groups:
SELECTION GROUP 1:
• Projects including nearly zero energy solution can freely choose a lot. (In this case, the definition for
nearly zero energy building is E-number < 35, official definition does not exist yet).
SELECTION GROUP 2
• Projects, in which heat loss and E-lnumber are max. 60% of the minimum level defined in norms can
straightly select the best possible lot after the selection group 1 is processed. In the case of several same
level applications, lottery is used.
SELECTION GROUP 3 (minimum requirement)
• Projects, in which heat loss and E-lnumber are equal or less than 70% of the minimum level defined in
norms can get a lot, if it is not selected earlier. Ther building projects will take a part of a lottery, if free
lots are available.
Pekka Seppälä, Lauri Mikkonen
19.11.2015
Builders of the pilot area
Block 22
1 Hybridiosaajat
2 JCT Rakennusliike
3 Design-Talo
4 Design-Talo
5, 6, 7 Oulun seudun ammattiopisto
8, 9 RESCA base
Block 24
1, 2, 3 Kastellitalot
4 Oulun AS-invest
5 Reserved to pilot area, plot under search
6, 7, 8 Oulun seudun ammattiopisto
9 Kiirunatalot
10 Dometalot
11 Reserved to pilot area, plot under search
12, 13 JCT
Block 25
5, 6, 7 Reserved to pilot area, plot under search
Block 27
3, 4, 5 Reserved to pilot area, plot under search
Block 29
1 Sonell
2, 3 TA
Pekka Seppälä, Lauri Mikkonen
19.11.2015
Project network
• INNER CIRCLE: 12 pilot site builders having several
hundreds of co-operation companies (design offices,
material suppliers etc.)
• MIDDLE CIRCLE: Rakennusvalvonta’s (building
control of the city of Oulu) and Business Oulu’s
seminars/educational events having around 80
enterprises and almost 1000 participants
• EXTERNAL CIRCLE: The E-mail list of the project has
over 250 contacts
Pekka Seppälä, Lauri Mikkonen
19.11.2015
Progress of the pilot area
• Construction of Hiukkavaara’s energy efficient pilot area
utilizing renewable energy resources started in 2013
• At the end of the project in February 2014 the
construction of the area was well in progress. Foundation
work was mainly ongoing
• In summer 2014 first buildings were ready. For instance,
Sonell Oy’s building had the first occupant in June
• OSAO’s (vocational college) target will take more time to
conduct construction so that education can be arranged
on the spot
• Approximately 80 % of the target area will be under
construction by the end of 2015
• Building physical modeling started in the end of 2014
Pekka Seppälä, Lauri Mikkonen
19.11.2015
Currently: Building physical
measurements and modeling
• Saikotek Oy has planned and installed building physical
measurements
• Data acquired from measurements are saved centrally
• University of Oulu is building physical modelling by
utilizing the data from measurements
 Experience will be gained about building physical
operation of structures
Pekka Seppälä, Lauri Mikkonen
19.11.2015
Currently: Building physical
measurements and modeling
Pekka Seppälä, Lauri Mikkonen
19.11.2015
Sonell Oy
• Sonell Oy’s has first
occupants
• Heat is produced by a
ground- source heat pump
and distributed to the room
air by radiant floor heating
system
• About 30 m2 of solar
collectors has been installed
on the roof of a shared
technical room
• The control of heating,
ventilation and safety systems
is carried out by a home
automation system
Pekka Seppälä, Lauri Mikkonen
19.11.2015
Pohjolan Design Oy
• E-number of 35
• Integrated home automation
system, which makes use of real
time measurements
• Heat is produced by solar collectors
and combined ground source heat
pump and exhaust air heat pump
• Electricity production is arranged by
a 30 m2 solar PV system. Excess
electricity is sold to a local energy
enterprise. The energy consumption
of the building can be followed in
real-time
Pekka Seppälä, Lauri Mikkonen
19.11.2015
TA-yhtymä
•
•
•
•
32 apartment row house area
including CHP plant (combined
heat and power)
Annual energy production of the
plant is estimated to be 400
MWh, where the electricity to
heat ratio is 1:3
Produced heat is utilized in
space heating and electricity as
usage electricity in the property
Excess electricity (40 MWh) is
sold as farm power. Furthermore,
20 MWh of heat is taken from
the ground by artesian wells.
First occupants can move in by
summer 2015
Pekka Seppälä, Lauri Mikkonen
19.11.2015
Dometalot Oy
•
•
•
•
Dometalot Oy has started the construction work rapidly (see the pic)
Air leakage number of 0,4 is a target for air-tightness (0,1 measured!)
Thermal bridge free double frame structure minimizes heat losses.
3000 kWh of heat is extracted from wastewater by heat exchangers
• Electricity is bought from the
local energy company and
used straightly in space
heating  simple and
inexpensive solution
Pekka Seppälä, Lauri Mikkonen
19.11.2015
AS-Invest Aurinkotalo
• Hybrid building being almost ready for residence
• Water circulating floor heating system combined with a
wood fired water furnace and water-to-air heat pump
• 6 kW solar system is in charge of electricity production
• Almost zero
energy level can be
achieved in the
target building
Pekka Seppälä, Lauri Mikkonen
19.11.2015
JCT
• Wood-frame building
• Solar collectors, solar cells, ground-source heat pump
• Passive house
level structures
Pekka Seppälä, Lauri Mikkonen
19.11.2015
Kastelli
• Ground-source heat pump, water circulating floor
heating
• 3 buildings
• Possibility to
integrate solar
collectors and PVs
Pekka Seppälä, Lauri Mikkonen
19.11.2015
OSAO
• Water circulating floor heating
• Ground-source heat pumps + solar collectors
• Ground circle for
pre-heating or
cooling the incoming
ventilation air
Pekka Seppälä, Lauri Mikkonen
19.11.2015
Pilot site in 2015
Pekka Seppälä, Lauri Mikkonen
19.11.2015
Pekka Seppälä, Lauri Mikkonen
19.11.2015
Future of the project
• 80 % of the pilot area will be under construction by
winter 2015
• Advicing occupants in the usage and maintenance of
buildings
• The performance of energy production and
consumption, building automation systems and
building physics will be measured and analyzed in
the pilot area in future  best practices will be
duplicated and implemented!
• Continuous piloting culture in the area of Oulu
Pekka Seppälä, Lauri Mikkonen
19.11.2015
Challenges faced, examples
• The level of energy design
• Moisture management
• Automation and control systems
Pekka Seppälä, Lauri Mikkonen
19.11.2015
Thank you!
Pekka Seppälä, Lauri Mikkonen
19.11.2015