Key elements in the process of NET-ZERO concepts

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Key elements in the process of NET-ZERO concepts
Key elements in the process of NET-ZERO concepts
Frank Uijting, Process manager & Partner at ABC Nova Nieuwegein (the Netherlands)
29-02-2016
The European Union requires all new
buildings to be nearly zero-energy by the
end of 2020
40% total
Energy
Usage
300.000 houses per year must become more
energy efficient
Upgrading of existing built environment
remains a challenge
Upscaling is needed to reach this goals
2
Plaatje waar alles optimaal is. Geld,
kwaliteit, duurzamheid.
How?
=
Process
3
Content
What is your Goal?
Who are your Partners?
How to Tender?
4
Plaatje best quality
Goal
5
What is your goal?
Quality
Costs
Time
6
What is your goal?
‘Frisse scholen’ class A
Building regulations
Available budget
Financial framework
2280 €/m2
Dutch
schools
challenge
1700 €/m2
1350 €/m2
Ambition
7
Partners
8
Who are your Partners?
Contractor
Collaboration
Zero energy
&
cost efficient
Not zero
energy
&
Cost efficient
Zero energy
&
Not cost
efficient
No zero
energy
&
Not cost
efficient
Only own interest
Client
Only own interest
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Tender
10
Why is tendering important?
Partners you want can be selected
objectively
Vision as a selection criterion
Process and collaboration are defined
Goal:
Match between
the what and the how
Make use of dialogue !
Integration and security of disciplines can be
assured
Managing risks and responsibilities
11
How to Tender?
Influence
Money
Impact
Concept
Design
Realization
Use
Time
12
How to Tender?
Influence
Money
Innovation
Impact
Concept
Design
Realization
Use
Time
13
Renovation HU Heidelberglaan
Limited financial means
Strict planning
Renovation interior
Exterior partly renovated
From regular education to a chemical laboratory
(increasing demand of energy)
Reached energy level A++
Integrated contract
Stimulation of energy reduction by creative
tendering:
–
–
–
–
–
–
Proposals for improvements were allowed as
long as they have a return on investment of
max. 15 years
Glass was replaced
Roof insulation
Solar panels were added
Heat recovery system was implemented
LED lighting
14
Newly built educational building HU
Example partners
Design build and mantain (15 yrs)
Extra budget for sustainability
Strict planning
Goal: BREEAM very good
Result: BREEAM Excellent, possible BREEAM
Outstanding
–
–
–
–
Solar panels
Heat and cold storage
Thermally activated concrete
Usual arrangements
Contractor thinks along to reach a smooth process
15
City hall Drechterland
Design Build and Mantain (20+10)
Part of an area development
Use of new ways of working/flexible
workspace
Goal: BREEAM very good
Result: BREEAM Excellent (possible
Outstanding)
Contractor thinks along to reach higher
performance
50% better energy performance vs
building code
–
–
Solar panels
Heat and cold storage
16
Other examples tendering
Effect on energy reduction
In Rijswijk the energy reduction at the
school Schilderskwartier/Stationskwartier
both reached 35% energy reduction
Zonnehof in Duivendrecht resulted in “Frisse
scholen Klasse A, which means an “Very
Good/high level of measures on thermal
conditions, comfort, lightning and energy.
In Zevenaar a reduction increased from
10% (goal) to 30% (“Frisse scholen Klasse
A”)
renovation/transformation of secondary
schools where installations are renewed:
energy performances increase with 10% to
25% depending on additional financing.
17
Conclusions and recommendations
There are energy performance goals
There is disbalance between time, cost and quality
No educational buildings not yet zero energy yet, what is the next step?
Growth in integration of disciplines. Still a way to go
Beware of old habits
Improvement in the tendering procedures is still possible:
–
–
–
–
Do not prescribe everything
Make use of the dialogue
Challenge the partners
There are solutions we don't know yet
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Contact
Amsterdam
Joan Muyskenweg 128
1114 AN Amsterdam-Duivendrecht
Arnhem
De Wetstraat 26
6814 AP Arnhem
Assen
Vaart N.Z. 50
9401 GN Assen
Nieuwegein
Krijtwal 31b
3432 ZT Nieuwegein
abcnova.nl
[email protected]
088 – 0 215 315

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