Support · FAQ
Answers to the questions we hear most often about solar, batteries, blackout backup, sizing, and our warranty.
A residential solar + battery system in Queensland typically costs between AUD $8,000 and $22,000 installed, depending on system size and roof complexity. A 6.6 kW solar array paired with a 10 kWh battery lands around $14,000–$17,000 after federal STC rebates. Megawatt provides fixed-price quotes with no hidden charges after the site assessment.
Most Queensland households see a payback period of 5–8 years on a solar + battery system, based on current electricity prices, feed-in tariff rates, and typical SEQ solar generation. Megawatt models your specific usage pattern from your bill before quoting — payback is calculated against your actual consumption, not a generic average.
Queensland homeowners can access Small-scale Technology Certificates (STCs) under the federal SRES scheme, which reduce upfront system cost by approximately $1,500–$4,000 depending on system size and your STC zone. There is no dedicated Queensland state battery rebate currently active in 2026, but federal Virtual Power Plant (VPP) programs can offer ongoing bill credits.
Megawatt focuses on delivering reliable, long-term energy solutions rather than short-term trends. Our own qualified electricians cover design, installation, and commissioning in-house — no subcontracting. We carefully select proven technologies and ensure every system is designed for Australian conditions, providing safety, stability, and long-term performance, all backed by a 10-year whole-system warranty.
It depends on your daily energy use, solar system size, and whether you want backup power. Check your electricity bill first — especially your daily kWh usage — then match the battery size to your real household consumption. For most Australian homes, a 10–25 kWh battery system is usually suitable. If you want longer backup time or have high evening usage, a larger system may be recommended.
Yes — if the system includes batteries with a dedicated backup output or an AC Power Switch, it can keep your home powered during a blackout. The RCT Power system Megawatt installs switches from grid to battery in under 20 milliseconds, fast enough that most appliances — including computers and medical equipment — do not notice the transition. A 10 kWh battery can typically run an average Australian home for 12–24 hours depending on load.
Yes. LiFePO4 (lithium iron phosphate) does not contain cobalt, is thermally stable across Queensland ambient temperatures (the RCT Power range operates from −18 °C to +55 °C), and carries no fire risk from thermal runaway under normal fault conditions. NMC (nickel manganese cobalt) batteries offer higher energy density but degrade faster in high-heat environments and carry greater thermal runaway risk — which is why Megawatt only installs LiFePO4 chemistry for home storage.
Megawatt provides a 10-year whole-system warranty covering panels, battery, inverter and installation workmanship — backed by Megawatt in Australia, not routed through an overseas claims process. RCT Power batteries carry a 10-year manufacturer warranty with an 8,000-cycle / 80% state-of-health performance guarantee. Jinko Tiger Neo and LONGi Hi-MO panels carry 25–30-year linear power output warranties. SOLINTEG inverters carry a 10-year manufacturer warranty.
Solar batteries let you store excess daytime generation for use at night, reducing reliance on grid electricity at peak-tariff times. They also enable blackout backup, lower your effective electricity cost per kWh, reduce your carbon footprint, and contribute to a more sustainable grid by smoothing renewable energy supply.
For most residential solar setups in 2026, Lithium-ion (specifically Lithium Iron Phosphate / LiFePO4) batteries are the top recommendation. They offer long lifespans (10+ years), high efficiency, deep discharge capability, and the strongest safety profile of any current battery chemistry suitable for indoor or garage installation.
Yes — most solar systems can be upgraded to include battery storage. In most cases, Megawatt will remove your existing inverter and install a modern all-in-one hybrid inverter with integrated battery storage. We assess your current inverter, panel array, and switchboard during the site visit to recommend the best retrofit option.
No. Every Megawatt installation is carried out by our own qualified electricians. We don't use subcontract labour. The person who designs your system is part of the same team that installs and commissions it — and the same team you call for warranty support over the next 10 years.
You have 3 business days from signing your system contract to cancel without penalty. You may also terminate in writing if any of the following apply:
To make a claim, contact our support team with:
We will guide you through the process and work to resolve your claim as quickly and smoothly as possible.
The warranty does not cover faults or defects arising from:
We stand behind every system we install. Reach out for warranty claims, performance checks, troubleshooting, firmware updates, or anything else — our local team responds within one business day.