Townsville solar guide

Wet-season solar in Townsville: cloudy weather or a system fault?

A lower solar reading during Townsville's wet season does not automatically mean the system is faulty. Cloud, the time of day and household use all affect what you see. Start with the monitoring data and any error messages. If equipment is damaged, wet or flood-affected, stay away and contact a licensed electrician.

Are you looking at generation, exports or battery charge?

These are different numbers. Solar generation is what the panels and inverter produce. Exports are what remains after the home and battery have taken their share, subject to the connection limit. Battery charge is affected by how much energy was available, the operating settings and earlier household use.

A low export figure can mean the home used more solar, not that the panels stopped working. A battery that is less full in the afternoon may reflect a cloudy morning or higher household demand. Check which measurement the app is actually showing before comparing days.

What is a useful comparison?

Compare similar conditions rather than a wet afternoon with your best clear day. Look at the full day's generation and the shape of the graph. A single instantaneous reading is only a snapshot.

  • Compare the same time of day, with roughly similar cloud conditions.
  • Check whether household use or battery charging changed.
  • Look for a repeated gap or an error message rather than relying on one low number.
  • Check whether the app stopped receiving data, which is not necessarily the same as generation stopping.

Keep a screenshot of the graph and the date and time if you contact the installer. A clear record is more useful than a guess about what the equipment is doing.

Does a full battery guarantee backup through several cloudy days?

No. Available energy, the loads you run, the reserve setting and the equipment's backup arrangement all matter. Grid-connected solar without a suitable backup arrangement normally shuts down in an outage. A battery needs the right configuration to supply backup, and supported circuits and power limits vary.

Ask your installer which loads are covered. Plan around that answer rather than assuming the whole house will run normally. Our cyclone-ready guide covers the broader design and preparation questions, while the battery page explains sizing.

What can you check without touching electrical equipment?

From a safe, dry location, note what the monitoring app or visible display reports. Record any fault code, when the issue started, and whether there was a storm or outage. You do not need to climb onto the roof, remove covers or operate damaged equipment to gather that information.

If the monitoring app is offline, tell the installer that it is a communications problem you have observed, not a confirmed hardware fault. Let the team guide the next checks for your particular system.

What if a storm or flood may have damaged the system?

This is not a monitoring exercise. Ergon warns that panels and cables can remain live in daylight even when mains power is disconnected. A wet, submerged or damaged system can be an electric shock risk.

Stay away from affected panels, batteries, inverters and wiring. Do not try to turn them on or off, even if they look dry afterwards. Do not get onto a damaged roof. Arrange inspection by a licensed electrical contractor and do not reconnect affected equipment until it has been certified safe.

Before severe weather arrives, follow the shutdown instructions supplied for your own system and seek your installer's advice if they are unclear. Do not use a generic switch sequence from a blog in place of the system's instructions. Ergon's solar and battery safety guide explains the before, during and after precautions.

What should you send Barra if the readings concern you?

Send the equipment model, a screenshot of the graph or error, and the date the change began through our contact page. Tell us if there has been water or physical damage so the team can treat it appropriately. For immediate electrical danger, follow official emergency advice rather than waiting for a website enquiry response.

Sources and further reading

Checked 6 November 2026 (Australia/Brisbane). Your installation and product instructions take priority over general guidance.