FAQs
Got questions?
We've got answers.
Everything you need to know about solar, batteries, heat pumps, rebates and the Mission Green installation process.
Solar
Solar panel
questions.
How much does a solar system cost?
A quality 6.6kW solar system typically costs $4,500-$7,000 after STCs. Larger systems (10-13kW) range from $7,000-$12,000. Pricing depends on panel brand, inverter choice and installation complexity. We provide detailed quotes after a free assessment.
How long do solar panels last?
Premium Tier 1 solar panels carry 25-year performance warranties guaranteeing at least 84.8% output at year 25. In practice, quality panels continue producing well beyond 30 years with minimal degradation.
How much can I save with solar?
Most households save $1,800-$3,600 per year with solar alone. Adding a battery increases savings to $3,000-$5,200 per year. Exact savings depend on your energy usage, system size, state tariffs and self-consumption rate.
What size solar system do I need?
For a typical Australian home: 6.6kW for 1-2 people, 10kW for families, 13kW+ for large homes or EV owners. We analyse your energy bills and usage patterns to recommend the optimal size during your free assessment.
Do solar panels work on cloudy days?
Yes. Solar panels produce electricity from daylight, not direct sunlight. Output is reduced on cloudy days (typically 10-30% of peak), but they still generate meaningful power year-round across all Australian states.
Battery
Battery storage
questions.
Do I need a battery with solar?
Without a battery, you export cheap solar during the day and buy expensive grid power at night. A battery stores your solar for evening use, increasing self-consumption from ~30% to 80%+. Batteries also provide blackout protection and VPP income.
How long does a battery last?
Premium batteries like BYD (10,240+ cycles) and Tesla Powerwall last 15-25+ years. All our batteries carry 10-year manufacturer warranties. LFP chemistry batteries typically outlast their warranty significantly.
What happens during a blackout?
With a battery and backup capability, your essential circuits keep running automatically during grid outages. The switchover happens in under 20 milliseconds — you won't even notice the grid went down.
What is a VPP?
A Virtual Power Plant (VPP) connects thousands of home batteries into a coordinated grid resource. Your battery discharges small amounts during peak demand events, and you earn credits. It's automated, passive income from your battery.
Can I add a battery to existing solar?
Yes. We regularly retrofit batteries to existing solar systems. Depending on your current inverter, we may add a hybrid inverter or use an AC-coupled battery solution. We assess compatibility during your free consultation.
General
Installation & process
questions.
How long does installation take?
Residential solar installations typically take 1 day. Solar + battery installations take 1-2 days. Commercial installations are scheduled based on system size and complexity, typically 2-5 days.
Do you handle all the paperwork?
Yes. We manage everything — grid connection applications, council permits (if required), rebate claims, STC processing and compliance documentation. You don't need to fill out a single form.
What finance options are available?
We offer $0 upfront interest-free plans through Brighte (12-60 months), green loans through Plenti (from 6.99%), and cash purchase discounts. Most customers' finance repayments are less than their old electricity bills.
What warranty do I get?
All MG installations include manufacturer warranties (25 years for panels, 10-25 years for inverters, 10 years for batteries) plus MG's own workmanship warranty covering installation quality and system performance.
What areas do you service?
We service all 6 Australian states and territories — Queensland, New South Wales, Victoria, South Australia, Tasmania and the ACT. Our CEC-accredited installer network covers metro and regional areas.