Solar panels in Toowoomba

Where the installs are going

Toowoomba installs a lot of solar for its size. The city's growth on the western and northern edges, at Glenvale, Cotswold Hills and Highfields, has brought a steady run of new homes, and the older Queenslanders in East and South Toowoomba have been adding panels for years. Winters are cold enough that heating is a real load, which is unusual for Queensland and changes how a system should be sized.

Roofs and homes in Toowoomba

The classic Toowoomba house is a timber Queenslander or a post-war weatherboard with a corrugated iron roof, which takes panels well. Iron that has rusted or been patched should be sorted out first. Newer estates are almost all Colorbond. Hail is the local weather risk; the Darling Downs gets serious storms in spring and summer, and panel impact ratings are worth checking. Toowoomba is out of the cyclone region, so mounting requirements are the standard ones, but the ridge line catches wind, and a properly engineered rail system still matters on exposed roofs.

The network: Ergon Energy

Ergon Energy is the distributor. The usual single-phase export limit is 5 kW, three-phase homes can export more, and larger systems need a connection application. Toowoomba's usage pattern is unusual for Queensland: a summer afternoon peak from cooling and a winter evening peak from heating. A system sized only for summer will leave you buying power all winter, and a battery does useful work in both seasons here.