| Indicative payback periods & IRR for SunGrow PowCube as part of a new system or as retrofit
(Results for Sydney as of Jan 2018. All results indicative only; actual results will depend on your individual circumstances. You can explore outcomes yourself with Solar Choice’s Solar & Battery Sizing & Payback Estimator.) |
||||||
| Approx costs | Tariff type | Payback period (years) | IRR | Savings year 1 (battery only) | Savings year 1 (solar only) | |
|
Brand new ‘whole’ solar + battery system
|
5kW solar system for $6,200 (incl $1,000 premium for hybrid inverter) plus $3,500 for battery.
Total: From $11,200
|
Flat rate – 25c/kWh | 7.5 | 14% | $330 | $1,200 |
| TOU | 7.1 | 16% | $400 | $1,200 | ||
|
Full retrofit to existing 5kW solar system
(inverter + battery)
|
From $8,000
(includes emergency backup)
|
Flat rate – 25c/kWh | >20 | -2.6% | $330 | $1,200 |
| TOU | >20 | -5.5% | $430 | $1,200 | ||
| Battery only
(as part of simple retrofit orĀ ‘whole’ system) |
From $5,000 | Flat rate – 25c/kWh | >20 years (full system)
/ 11 years (retrofit)
|
15% / -2.6% | $330 | $1,200 |
| TOU | 7.1 (full system)
/ 11.9 (retrofit) |
16% / 1.4% | $430 | $1,200 | ||
CEO at Solar Choice
Jeff has consulted on over 20MW of commercial solar projects, ranging from SMEs to ASX top 100 companies. Jeff has also provided independent advice to 100s of residential solar, battery and EV charging customers across every state in Australia. He holds an MBA from the Australian Graduate School of Management and is an expert in business strategy and financial analysis.
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