1. Solar + Storage @
Stucco Co-operative
Dr Bjorn Sturmberg,
Louis van Rensburg, Sarah King
An Australian first in a multi-unit residence
Supported by

2. An Australian First?
Retro-fit
New development
Solar + storage are:
● Installed on common property,
● Power common areas & all individual units.
1949
1988 1992 - Today

3. The Co-op
40 Members: low-income, Syd Uni students.
Co-op meets every 15 days; committees alt. week.
Engaged members (more than Body Corp.)
No split-incentive - everyone tenant & prop. manager.
Tenant
Owner
General MeetingClean up

4. The Building
3 stories - solar resource matches demand (M. Roberts UNSW).
Great roofspace - unshaded, flat, easy access.
Capacity for > 40 kW of PV
South
North

5. The Demand
Low demand - ~85 kWh daily (whole building).
- no AC, pool, dishwashers, dryers; shared clothes washers.
Classic residential Time of Use profile - emphasised evening peak.
Value in
Storage!

6. Challenges ...
● Multi-unit setting
● Low solar self-consumption
… meet Innovations
● Convert building into Embedded Network
● Solar + Storage
“Environmental Performance – Innovation Grant”

7. Innovations: Embedded Network + Storage

8. Innovations: Embedded Network + Storage

9. Innovations: Embedded Network + Storage

10. Innovations: Embedded Network + Storage
Louis 2pm, Thu
Renewable Cities
Apartments Social Housing

11. System Details
30 kW of PV (p.a. = 40 MWh, 35 T CO2
) - easy
40 kWh of usable storage - hard, very hard
Smart metering & billing - not so easy, but solutions know
Grid connection - hard

12. Early adopter phase; Stucco bigger than single household
● Technical: 3 phase, grid connection, submetering
● Standards (lack thereof)
● Safety (harder in retrofit): high voltages, fire
● Forecasts: performance decay? dropdead?
● Warranty
Challenges (II) - Batteries

13. ETA … ?

14. Opening party:
August!
ETA …
July

15. Acknowledgements
Financial Support: Process Support:
(Invaluable) Pro-bono Support:
Gail Christopher, Natalie Stianos
Dr Andrew Mears, Dr Gunilla Burrowes
Prof Anthony Vassallo, Dr Penelope Crossley

16. Solar + Storage @
Stucco Co-operative
Supported by
Dr Bjorn Sturmberg
e : bjorn.sturmberg@gmail.com
in: /bjornsturmberg
w: kairospower.net
w: stucco.org.au