Renew Energy Solutions took on the electrical work and the new energy system at this Coes Creek home on the Sunshine Coast. The result was a three-phase supply, 13.78kW of Jinko solar and 48kWh of GoodWe battery storage, installed and commissioned as one coordinated job.
The project at a glance
Location: Coes Creek, Sunshine Coast
Electrical supply: Single-phase upgraded to three-phase
Solar: 29 Jinko 475W panels, 13.78kW total
Inverter: 10kW three-phase GoodWe
Battery: GoodWe ESA, six 8kWh modules, 48kWh total
Other works: New property pole, meterboard upgrade and underground supply cable
The brief
The homeowner wanted enough solar and battery storage for a bigger home energy setup. But the house was on single-phase power, which couldn’t support the system they wanted.
Before the solar and battery work could be completed, the team needed to upgrade the incoming power supply and connect it to the house. The work also had to fit around an established property, rather than an empty building site.
What we did
- Installed a new property pole and upgraded the existing meterboard for three-phase power.
- Ran a new underground three-phase supply cable from the meterboard to the house. The homeowner completed the trenching.
- Installed 29 Jinko 475W solar panels, making a 13.78kW rooftop array.
- Fitted a 10kW three-phase GoodWe inverter and a GoodWe ESA battery stack with six 8kWh modules.
- Coordinated and commissioned the supply, solar and battery installation.
RES handled the electrical supply work and solar equipment, including the pole, meterboard, cabling, solar and battery, so the homeowner only dealt with one team.
The outcome
The Coes Creek home now has its new three-phase supply, an upgraded meterboard, a 13.78kW solar array and 48kWh of battery storage. The new pole, underground cabling and energy equipment were installed and commissioned together.
For the homeowner, the useful part was having the supply work and the solar and battery installation handled as one job. There was no need to organise separate electrical and solar contractors.
Why the supply upgrade mattered
Solar panels were only one part of this job. The house needed a three-phase connection for the system the homeowner had chosen, so the team addressed the incoming supply and meterboard as well as the rooftop and battery equipment. Not every home needs three-phase power to install solar or a battery, but it was part of the design at Coes Creek.
Frequently asked questions
Do I need three-phase power for solar and a battery?
Not always. Homes can use single-phase or three-phase solutions, depending on their supply, energy use and chosen equipment. An electrician can assess what works at your property.
Why are there 13.78kW of panels and a 10kW inverter?
The panel rating is the combined capacity of the 29 panels. The inverter rating is its AC power output. Those figures can differ because panels rarely produce their maximum output for long, and the system must still meet the equipment and network limits.
What does 48kWh of battery storage mean?
Kilowatt-hours (kWh) measure stored energy. Kilowatts (kW) measure how quickly power is used or delivered. This home has six 8kWh GoodWe battery modules, giving 48kWh of stated storage capacity.
Will the battery keep the house running in a blackout?
That depends on the inverter, backup wiring, system settings and which circuits are connected. Ask what backup is included in the proposed design rather than relying on the battery capacity alone.
Does changing to three-phase increase solar export limits?
Not automatically. The electricity distributor sets the connection and export conditions for each system. Those requirements should be checked before installation.
Will solar and battery storage reduce power bills?
They can reduce grid electricity purchases when the system matches the home’s usage. Actual savings depend on electricity use, tariffs and how the battery is operated.
Planning a similar upgrade?
Every home is different, so we start with the power supply you have and the system you want. Whether you need solar, battery storage, a meterboard upgrade or all three, Renew Energy Solutions can help plan the electrical work and installation together.
