School of PV and Renewable Energy Engineering
University of NSW, Sydney, Australia
4 th Informed Cities Forum, Rotterdam, The Netherlands

• UNSW Research & APVI background
• Ideas when envisioning
‘Which way to the future for transforming cities?’
• Focus on urban solar mapping
– Australian experiences and
– IEA activities (MUSIC Project)
• Conclusion and future thoughts

PVPS Task 7
PVPS Task 10
SHC Task 41
Solar Energy &
Architecture http://task41.iea-shc.org
www.task7.org www.iea-pvps-task10.org
IEA Work –
Photovoltaic Power Systems (PVPS) &
Solar Heating & Cooling (SHC)
SHC Task 51
Solar Energy in
Urban Planning http://task51.iea-shc.org

Philadelphia strategy
Philadelphia clean water green cities initiative
Reducing the solar heat gain by transforming a concrete built environment
Social and liveable benefits not often considered
ICLEI Forum - “Which way to the future?” – Strategies, Tools and Inspiration for transforming cities

Utah – Beehive State – 4 day week
Involving 17,000 state employees in Utah
4 x 10 hour days – better hours of access to services
New slogan - TGIT! Thank God it’s Thursday
13% reduction in energy use over 12 month period
Fridays mid-day hours replaced by cooler times of
the day on Monday and Thursday
Estimated $6 million petrol cost saving
Reduced sick leave, no significant drop in
productivity
Stimulated growth in small to medium sized
businesses
- Invisible costs not clearly measured and valued
ICLEI Forum - “Which way to the future?” – Strategies, Tools and Inspiration for transforming cities

“Only primitives & barbarians lack knowledge of houses turned to face the
Winter sun.”
Greek playwright Aeschylus (525-456 BC)
Energy efficiency/passive solar design must be a complimentary activity
High insulation standards, high quality glass and windows, heat recovery systems, and passive solar devices such as shading devices, appropriate distribution of internal thermal mass….. → reduces daily variation in temperature
“Human behaviour factor”
A zero energy or 6+ star designed house is only as efficient as the people who live in it allow it to be!

Centralised model under question

Moving into the City

IEA Solar Heating and Cooling Programme
Task 41: Solar Energy and Architecture
Operating Agent: Maria Wall, Lund University, Sweden http://task41.iea-shc.org

PV as part of Building function
1.3MWp of blessed Vatican PV on Paolo VI
Audience Hall - SolarWorld AG

Quality BiPV

Building integrated concepts for façades

?
Solar Energy Systems in Architecture http://task41.iea-shc.org/data/sites/1/publications/T41DA2-Solar-Energy-Systems-in-Architecture-28March20131.pdf
Colt Ellise PV sliding shades and Colt Shadowvoltaics

BiPV costs versus conventional products
Price AU$/m 2 $200 $400 $600 $800 $1,000
Source: Updated 2011 and adapted from Ingo Hagemann (2007)

Retrofit of PV – 40 year old office

Retrofit of PV – 40 year old office
Source: Schott solar ASI glass retrofit 40 year old office
PV retrofit facelift transforms building
Building re-valuation pays for PV day 1 through increase in asset value
Innovative financing required to deal with upfront capital cost

BIST : Building Integrated Solar Thermal architecture systems
Sun Deck shading Source:RaU Architekten Balcony Eaves Source: Beat Kaempfen

IEA Solar Heating and Cooling Programme
Task 41: Solar Energy and Architecture
– Subtask A
Website: Innovative solar products for architectural integration
Authors: Maria Cristina Munari Probst, Christian Roecker C. (CH) et al. http://solarintegrationsolutions.org/
Published: September 2012 http://task41.iea-shc.org

• IEA Task 41 Solar Energy & Architecture – has made progress in connecting with architects and provided them with a “how to” – “why should you” mainstream approach.

• Interface with urban planners in delivering building and precinct level solar solutions is still at an early stage
Bielefeld Source: Energie Agentur.NRW Freiburg Solarsiedlung Source: Rolf Disch

IEA Solar Heating and Cooling Programme
Task 51: Solar Energy in Urban Planning
Operating Agent: Maria Wall, Lund University, Sweden http://task51.iea-shc.org

Engineer
"engine“ deriving from the Latin ingenium , meaning "innate quality, especially mental power, hence a clever invention”
Solar Energy in Urban Planning – SubTask A
Latin architectus
Greek architéktōn
árchos = leader,
árchein = to be the first tektōn = builder
Master builder “artisan”

Urban planning (urban, city, and town planning) a technical and political process concerned with the control of the use of land and design of the urban environment, including (utilities and) transportation networks, to guide and ensure the orderly development (and renewal) of settlements and communities.
It concerns itself with research and analysis, strategic thinking, architecture, urban design, public consultation, policy recommendations, implementation and management.
Where does solar energy fit in the order of priorities urban planners consider?
What are the needs and knowledge products required to make informed decisions ?

IEA Solar Heating and Cooling Programme
Task 51: Solar Energy in Urban Planning
New urban areas
Existing urban areas
Sensitive/protected landscapes
Munari Probst, M.C & Roecker, C. EPFL (2011).
Solar field in Reunion Island
(Source: Akuo Energy)
Operating Agent: Maria Wall, Lund University, Sweden http://task51.iea-shc.org

Tracking Success & New Opportunities

$$

http://pv-map.apvi.org.au

http://pv-map.apvi.org.au

http://pv-map.apvi.org.au

http://pv-map.apvi.org.au

• Understand and engage with all stakeholders
• Identify the ‘change agents’
• Collaborate to source ‘purposeful and reliable data/tools’
• Tools need to be shaped in partnership with the key practitioners who will use them
– do not assume you know what they need and that they know what they need!
• Empower participation through GIS visualisation that is accessible, updatable and inspiring o Market relevant and enabling o Policy impactful – scenario based o Drives comparison and healthy competition

IEA Solar Heating and Cooling Programme
Task 51: Solar Energy in Urban Planning
Dr. Mark Snow, SPREE UNSW m.snow@unsw.edu.au