Choosing the Correct Solar System
This important choice is highly dependent on:
- Your energy consumption
- The roof space available for solar panels
While there are still massive incentives available for homeowners and businesses planning on going solar under the Federal Government’s Small-Scale Renewable Energy Scheme, you can actually receive a larger rebate by purchasing a bigger system.
5kW Solar Systems for Households
The largest suitable size for households is a 5kW solar system. The reason being, anything above 5kW will not be eligible for the feed-in tariff (FIT), which is approximately 7 cents per unit in WA at the time of writing this post. The size of the panels can exceed 5kW to up to 6.5kW; however, the inverter’s capacity should stay at 5kW in order to get credited for any extra units that your solar system feeds back onto the grid.
The average household in Western Australia with a 5 kW solar system saves approximately $180 per month. As a result, a 5kW solar system could save you around $360 per billing cycle (which is typically delivered by electricity providers every 60 days in most regions) and over $2,000 per year.
Battery Storage for 5 kW Solar System
A 5 kW solar system generally consists of 20 x 250 Watt solar PV panels plus a standard 5 kW inverter. This setup is typically not ready to connect a battery system to it. However, there are a number of options you can take to make it battery-ready:
- Purchasing a Hybrid inverter instead of a standard inverter from the outset
- Replacing the standard inverter with a hybrid inverter in the future when you have elected to go for battery storage
- Adding a Retrofit system which includes a charge controller device and battery
Batteries vs. Feed-In Tariff
Batteries save the additional energy which is generated by the solar system and not used during the day by the householders. Stored energy could be used at night when the sun stops shining, which would prevent you having to buy this energy back from the grid using the feed-in tariff. Furthermore, the batteries can get charged by the grid during the off-peak time when electricity retailers sell energy at the lower rate than the peak time.
Enerklean is an Australia-wide company that supplies a wide range of solar systems and batteries from Tier-1 brands. We know everything about solar as well as battery storage. If you need more information, don’t hesitate to contact our dedicated team of engineers.