Best Solar Power Systems Perth WA
One of the best locations in the nation (and the globe) to install a solar power system is Perth, WA. Perth’s wicked electricity rates are proving attractive with the high levels of Australasia, while the cost of solar installation has decreased dramatically in recent years.
How much power do solar panels produce in Perth?
It helps to include web site inhabitants while sizing a solar system in Perth because some sunlight translates into great returns. Typical average is 5 hours of “peak sunshine” per square meter per day per year, apparently, according to IP (of Watts). (Australian Gov Bureau of Meteorology has a slightly lower figure of 5.3.) The “rule” for solar in WA for system size is 3-5 kW found for summer. Minus out the fact can be captured by the system and converted into solar energy over a quiet hopper. In Perth, hybrid averaging output for solar PV systems amounts to about 85% because Australian locations receive an effective efficiency of 75%, which, as on the low side, is to be conservative/backwards.
| Solar Panel System (Perth) system size (Kilowatts) | Avg daily system output (kilowatt-hours) | Annual output (kilowatt-hours) |
|---|---|---|
| 6kW | 20-22 kWh | 7,985 kWh |
| 8kW | 25-28 kWh | 10,098 kWh |
| 10kW | 40-44 kWh | 15,320 kWh |
The angle and tilt at which the solar panels are installed will affect the amount of solar energy produced.
How solar panels and systems really add to help save electricity and money for Perth customers
There are two major ways that solar power can help households to save money on their electricity bills:
- Solar self-consumption: Use solar energy generated by your panels for your own usage instead of drawing from the grid (which can be more expensive). The more efficiently you use solar energy, the more savings you’ll see (with net billing & net metering, as in sunny Synergy).
- Solar feed-in benefits: The external (STC / Feed-In-Tariff) means the company pays per kWh you feed into the grid. While feed-in benefit rates have been reduced recently, the principle remains: you sell unused solar energy and get paid for it.
How much energy does my home use?
It’s essential not to greatly over-size your solar panel installation. Perth households use an average of 20 to 25 kWh per day. Typical system sizes (6-10kW) are sized for average families or small businesses. To estimate usage, count the people living, appliances, year-round needs, and bills.
| Solar Panel Size | Average Cost | Average Daily Energy Usage | Annual Savings | Payback Period |
|---|---|---|---|---|
| 6kW | $4,170 | 30 kWh | $861 | 5-7 Years |
| 8.4kW | $5,460 | 40 kWh | $1,243 | 5-8 Years |
| 10kW | $8,380 | 40 kWh | $2,296 | 5-8 Years |
Assumes energy prices of 23.5c / kWh (which fits Synergy’s A1 rates home use).
Indicative savings and payback periods for the solar panel systems in Perth
| User Case | Solar and Battery Solution | System size and typical battery | Year 1 Savings | Payback Period Solar & Battery | Payback Period Battery Only |
|---|---|---|---|---|---|
| Major Adult / Older Family | 8.4 kW solar + 13.5 kWh battery | 8.4 kW solar system + 13.5 kWh battery | $2,941 | 10 Years | 20-22 Years |
| Retirees / Young Families | 6.6 kW solar + 13.5 kWh battery | 6.6 kW solar system + 13.5 kWh battery | $2,431 | 12.5 Years | 18.5 Years |
| Heavy User | 10 kW solar + 13.5 kWh battery | 10 kW solar system + 13.5 kWh battery | $3,372 | 8 Years | 16 Years |
Solar 365 can help you compare solar quotes in Perth: Our team carries out free PV site evaluations and helps shortlist qualified installers. We deliver thorough quote comparison for solar installations in Perth WA.