No jargon and no sales numbers, just a clear picture of where your power comes from, what makes a Newcastle roof better or trickier, and where a battery fits in. Everything specific to your home is confirmed on a free site assessment.
Sunlight hits the panels, an inverter turns it into the power your home runs on, and anything you don't use is either stored or sent to the grid.
Your home always uses your own solar first. Spare energy charges a battery if you have one, and only what's left goes to the grid, up to the export limit your network allows.
Comfortably, yes. Newcastle and the Hunter average roughly 4.5 to 5 peak sun hours a day across the year (Bureau of Meteorology solar-exposure data). "Peak sun hours" is just a way of boiling a whole day's sunshine down to the number of hours of full-strength sun it adds up to, and our figure sits well inside the range where a properly sized system does its job. We're sunnier than Melbourne or Hobart, a touch behind Perth and the Queensland coast. Good solar country, in other words.
In Australia the sun sits in the northern half of the sky, so a north-facing roof collects the most even, all-day generation. But it's not the only good answer:
Sun angles are the solar-noon altitude for Newcastle's latitude (about 32.9°S), from the standard solar-geometry formula (90° − latitude, plus or minus the 23.44° Earth tilt at each solstice): about 80° at the summer solstice, 57° at the equinoxes and 34° at the winter solstice. It's an illustrative guide to orientation, not an engineering figure, your real numbers come from pitch, shading and a look on the roof. Nothing here is a price.
The best roof isn't always the sunniest one on paper, it's the one that matches when your home draws power. That's a judgement made standing on the roof, not from a satellite photo.
Solar panels don't like shade, and one shaded panel can quietly drag on the others wired with it. In leafy suburbs like New Lambton that's the main thing we design around, mapping where shadows fall through the day, laying the array on the clear faces, and using panel-level electronics where it helps. Out in the newer estates like Fletcher, with young trees and big open roofs, shade is barely a factor.
Your electricity network, Ausgrid across Newcastle and the Hunter, owns the poles and wires and decides how much solar you're allowed to push back to the grid. That's the "export limit", and it depends partly on whether your home is single-phase (common in older suburbs) or three-phase (more common in newer builds). If you want the concrete numbers, our Charlestown page walks through the single- versus three-phase export limits on Ausgrid's network in detail. We confirm your phase and your limit as part of the assessment, and design the system to make the most of it. We won't quote you a street-level number here, because it genuinely varies from one address to the next.
One shift worth knowing about, because it's happening right now: that limit is starting to move from a single fixed number to what the industry calls flexible exports. Ausgrid began rolling out smart meters across its network in December 2025, and it's targeting flexible exports for the 2025-26 financial year on the back of that. Instead of one cap that never changes, a smart, internet-connected inverter checks in with the network every few minutes and lets you export more when the local grid has room to spare, and less when it's busy. It isn't switched on for everyone yet, so we won't put a dynamic figure on your roof today, but it's the direction the Hunter is heading, and it's exactly the kind of thing we'll walk you through, for your street, on the day.
A battery stores the solar your roof makes during the day so you can use it at night, or whenever your shift lands. It makes the most sense for households that are out while the sun's up, because otherwise that daytime energy gets exported for less than it's worth. It makes less sense if someone's home using power all day already. There are current rebates that can help with the cost, but they change often, so we'll tell you what actually applies when we visit rather than print a figure that's out of date by next month.
The federal STC scheme knocks a chunk off the upfront cost, but only when the install is done by a CEC-accredited installer, that accreditation is the rebate gate, not a nice-to-have. The accredited installer also handles the STC paperwork and the Ausgrid grid-connection application for you. We connect you with accredited installers and let them do the numbers on your actual system, rather than guessing them on a webpage.
Sources: peak-sun-hours from the Bureau of Meteorology solar-exposure data; network export limits per Solar Choice's network size-limit guide; the smart-meter rollout timing from Ausgrid's smart-meter rollout page, and the move to flexible exports (targeted for FY26 on the Ausgrid network, using the CSIP-AUS protocol) per SolarQuotes' flexible-exports guide; CEC accreditation and STCs per the Clean Energy Regulator. Sun-path angles are standard solar-noon altitudes for Newcastle's latitude (about 32.9°S), illustrative only. Nothing here is a price, a guaranteed output, or a specific rebate amount. Last reviewed July 2026.