Solar panels, a battery, or both? Where to start.

Solar and batteries solve different parts of the same energy puzzle. Panels generate electricity from sunlight; a battery stores energy for later. The useful starting question is what you want to change about the way your home uses electricity.

Start with your daily routine

Gather a recent electricity bill and, if available, your smart-meter usage data. Note when people are home and when you run larger appliances. A household that uses most of its energy after sunset has a different pattern from a business operating through the day. Share plans for an electric vehicle, extra air conditioning or renovations too.

Give the roof a proper look

Available space, direction, shading and roof condition affect the design. A roof that looks large from the street may have several smaller usable areas. Let your installer assess it, and mention any repairs you already have planned. You can supply photos taken safely from ground level; there is no need to climb onto the roof.

Understand the role of storage

A battery can shift stored energy to a later part of the day. Whether it is a useful addition depends on your usage, available solar generation, tariffs and budget. Ask for solar-only and solar-plus-storage options if you are undecided. That makes the extra scope easier to understand.

If adding storage later is part of the plan, ask what the proposed inverter supports and what extra work a future installation could require. A general description such as ‘battery ready’ is less helpful than knowing the compatible equipment and installation requirements.

Compare the complete proposal

Ask for the equipment models, layout, included electrical work, warranties and assumptions behind any estimates. Check who handles the network application and metering arrangements. If a quote leaves an item open, have it explained before agreeing to the work.

The next step is a conversation about your property. Explore our solar panel service or tell us about your project.

Further reading: Australian Government Solar Consumer Guide — system sizing and design considerations.