Solar prices have dropped significantly over the past decade, but there’s still a wide range in what you’ll pay depending on system size, equipment quality, and your roof. This guide breaks down realistic solar installation cost figures for 2026, explains how the STC rebate reduces your upfront cost, and shows what kind of savings you can expect on the Mid North Coast.
What Does a Solar System Cost in 2026?
The prices below are what you’d pay after the Small-scale Technology Certificate (STC) rebate has already been deducted – that’s standard practice in Australia. You won’t see two separate line items; reputable installers discount the STC value off the quoted price upfront.
| System Size | After-Rebate Cost (Quality) | Daily Production | Est. Annual Savings | Payback Period |
|---|---|---|---|---|
| 6.6kW | $4,500 – $7,000 | ~28kWh | $1,200 – $1,800 | 3 – 5 years |
| 10kW | $7,000 – $10,000 | ~42kWh | $1,800 – $2,600 | 4 – 6 years |
| 13kW | $9,000 – $13,000 | ~54kWh | $2,300 – $3,200 | 4 – 6 years |
The lower end of each range reflects budget-tier panels and string inverters. The higher end reflects Tier 1 panels with a reputable microinverter or hybrid inverter. You get what you pay for – more on that below.
How the STC Rebate Works
The STC rebate is a federal government incentive. It’s not a cheque – it’s a discount that your installer applies to your quoted price by assigning the certificates on your behalf.
When a CEC accredited installer fits your system, they create Small-scale Technology Certificates based on your system’s size and your location’s solar zone. Those certificates are sold to electricity retailers who are legally required to buy them.
For most residential systems in NSW currently, the STC discount works out to roughly:
- 6.6kW system: approximately $2,800 – $3,200 off
- 10kW system: approximately $3,500 – $4,000 off
- 13kW system: approximately $4,200 – $4,800 off
The STC scheme runs until 2030, but the annual deeming period decreases each year, so the rebate value gradually reduces. Installing sooner rather than later gives you access to higher certificate counts.
What Affects the Price of Your System?
Not all quotes are for the same thing. Here are the main factors that drive price up or down:
- Panel brand and tier: Tier 1 panels (Jinko, LONGi, REC, Sunpower) carry better degradation warranties and hold performance longer. Budget panels may be fine short-term but degrade faster.
- Inverter type: String inverters are cheapest. Microinverters (Enphase) or power optimisers (SolarEdge) cost more but handle shading better and give panel-level monitoring.
- Roof complexity: A single-pitch tin roof is fast to install. Multi-pitch tiled roofs, steep pitches, or long cable runs add labour time and cost.
- Switchboard upgrades: Older switchboards without RCDs or sufficient capacity need upgrading before solar can be connected. Budget $300-$800 if your board is pre-2000.
- Battery addition: Adding a battery at install time versus retrofitting later is generally cheaper. See the battery section below.
- Storeys and access: Two-storey homes or difficult roof access require scaffolding or elevated platforms, adding cost.
Realistic Savings for Mid North Coast Homes
The Port Macquarie region averages around 5.2 peak sun hours per day, which is solid for solar production. A 6.6kW system running at 80% efficiency (accounting for heat, inverter losses, and minor shading) produces approximately 27-28kWh per day, or around 10,000kWh per year.
What you save depends heavily on how much of that energy you use yourself versus export to the grid. Feed-in tariffs in NSW have dropped to 5-8 cents per kWh with most retailers, while buying power from the grid costs 30-35 cents. Self-consumption is where the real value sits.
Here’s what realistic savings look like for a typical Mid North Coast household:
- Self-consumption rate of 60-70% (home during day, pool pump, dishwasher on timer): saves $1,200 – $1,800/year on a 6.6kW system
- Self-consumption rate of 30-40% (both adults work full-time, nobody home during peak production): saves $700 – $1,100/year – still worthwhile, but slower payback
- With battery storage at 70-80% self-consumption: saves $1,800 – $2,400/year on a 6.6kW system + battery combo
Shifting energy use to daylight hours – running the dishwasher, washing machine, and pool pump between 9am and 3pm – can lift self-consumption from 35% to 60%+ without any other changes.
Should You Add a Battery?
The federal battery rebate is available now but steps down from May this year. If you’re considering a battery, getting your quote locked in before that date reduces your cost.
A quality home battery like an 11.5kWh unit (Alpha ESS Smile5, BYD HVS, or similar) costs $8,000 – $12,000 installed currently. The federal battery incentive currently applies in NSW and can reduce this by $1,500 – $4,000 depending on the scheme round, but it is being wound back from May this year.
Battery payback periods are longer than panels alone – typically 7-10 years depending on usage patterns and tariff structure. The case for batteries is strongest if you:
- Have a time-of-use tariff with peak rates above 40c/kWh in the evening
- Want backup power during grid outages (with the right battery/inverter setup)
- Are away from home during peak solar hours and currently export most of your generation
- Plan to add an EV and want overnight charging from stored solar
If none of those apply, panels-only with good self-consumption habits often gives a better financial return over 10 years than panels plus battery.
Feed-in Tariffs: Don’t Build Your Business Case Around Them
NSW feed-in tariffs sit at 5-8 cents per kWh with most major retailers currently. Some retailers offer slightly higher rates in bundled plans, but the direction has been consistently downward since the early premium schemes ended. A 6.6kW system exporting 40% of its output earns roughly $220-$350 per year in feed-in credits – useful, but not the primary reason to go solar.
- Every kWh you self-consume saves you 30-35 cents
- Every kWh you export earns you 5-8 cents
- The gap between those two numbers is your incentive to use power during the day
Finance Options
Most households don’t need to pay cash upfront. Common finance arrangements currently include:
- Interest-free plans: Available through some installers for 12-36 months. No interest, but check if there are establishment fees or balloon payments.
- Green loans: Several banks offer dedicated green energy loans at 5-7% p.a. – lower than standard personal loan rates.
- Buy now, pay later: Products like Brighte are common in the solar industry. Read the terms carefully – some products revert to high interest rates after the interest-free period.
- Redraw or offset: If you have a home loan with available redraw, using that at your mortgage rate (typically 6-7%) is usually cheaper than a personal finance product.
Even with finance costs factored in, a good-quality 6.6kW system often pays for itself within 5-7 years when financed at reasonable rates – because you’re displacing grid power costs every single day.
Why Cheap Solar Is a False Economy
A $3,200 installed 6.6kW system looks attractive on paper. The problem shows up 3-5 years later. Budget panels degrade at 0.8-1.2% per year versus 0.25-0.4% for quality Tier 1 panels – after 10 years, that’s a meaningful difference in output and savings.
- Cheap string inverters from lesser-known brands often fail within 5-8 years
- A replacement inverter costs $800-$2,000 installed, which can eliminate years of savings
- Warranty claims on budget equipment frequently go nowhere because the company has restructured, changed names, or exited the market
- Poor installation quality leads to roof leaks, fire risk from loose connections, and reduced panel lifespan
With 25+ years of experience and CEC accreditation, SolaXs only installs equipment we’re confident backing for the long term. A system we installed in 2010 should still be producing strong output today – and many of ours are.
Get a Quote for Your Home
Every home is different. Roof orientation, shading, daily usage patterns, and your current tariff all affect which system size and configuration makes the most sense for you. A 6.6kW system suits most Mid North Coast households, but homes with high daytime usage or larger families often see better returns from a 10kW system.
SolaXs provides obligation-free quotes with clear breakdowns of costs, savings projections, and payback periods based on your actual electricity bills – not generic averages. Get in touch and we’ll run the numbers for your home.
Getting the Most Value From Your Solar Investment
The upfront cost of solar is only part of the equation. How much you actually save depends on how well the system is matched to your usage patterns and how effectively you shift consumption to daylight hours. A well-designed system that’s properly sized will pay for itself faster than a larger system that exports most of its generation at low feed-in rates.
- Run high-draw appliances like washing machines, dishwashers, and pool pumps during peak solar generation hours
- Set hot water systems to heat during the middle of the day rather than overnight on off-peak tariffs
- Consider a solar battery if your feed-in rate is below 6c/kWh and you use significant power in the evenings
- Monitor your system through the inverter app to catch underperformance early
Homeowners on the Mid North Coast benefit from strong solar irradiance, but the value of that generation depends on your retailer’s feed-in tariff and your ability to self-consume. Shifting even a few loads to daytime can meaningfully improve your return. If you’re unsure whether your current system is delivering what it should, get in touch with SolaXs for a performance check.
What This Means for Mid North Coast Homeowners
The Mid North Coast is one of the best regions in Australia for solar. With around 5.2 peak sun hours per day and rising electricity prices, the numbers keep improving for homeowners who go solar.
- High solar yield: Port Macquarie, Coffs Harbour, and surrounding areas receive consistent sunlight year-round. Even in winter, a well-sized system produces enough to cover most daytime usage.
- Rising grid costs: Electricity prices on the Mid North Coast have increased by more than 20% over the past three years. Solar locks in a fixed energy cost for 25 years.
- Strong feed-in tariffs are gone: The days of generous feed-in rates are over. Self-consumption is now the key to savings, which makes system sizing and battery storage more important than ever.
- Local installers matter: When something goes wrong, you want an installer who can be on your roof the same week, not a company based in Sydney or Melbourne.
SolaXs has been installing and servicing solar systems in the Port Macquarie region for over 25 years. Get a free quote tailored to your property and energy usage.
For more information, see the Clean Energy Council solar buyers guide and the Australian Government solar PV and batteries.