Residential Solar
How to Size a Solar System for an EV Household in NZ (2026 Checklist)
Buying an EV and adding solar at the same time? Here is the NZ specific 7 step checklist for sizing a solar system that actually covers your...
Solar Calculator
Calculate your solar savings in 60 seconds
Tell us about your property and energy usage, and we'll estimate how much you could save with solar — plus the right system size for your home.
Your solar savings estimate
Answer a few questions and we'll calculate your potential savings and recommended system size.
Typical Results
What NZ homeowners are saving with solar
These are typical results for Auckland homes. Your actual savings depend on roof orientation, usage pattern, and system size.
Small Home
$1,500/yr
estimated savings
System size4 kW
Panels9 panels
Annual output5,200 kWh
Bill reduction~55%
Payback~5.5 years
MOST COMMON
Average Home
$2,800/yr
estimated savings
System size6.6 kW
Panels15 panels
Annual output8,600 kWh
Bill reduction~70%
Payback~4.5 years
Large Home
$4,200/yr
estimated savings
System size10 kW
Panels22 panels
Annual output13,000 kWh
Bill reduction~80%
Payback~4 years
Why Trust These Numbers
Based on real NZ solar data
Our estimates are based on NIWA solar irradiance data for your region, real electricity rates from major NZ retailers, and performance data from our 500+ installations.
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NIWA solar data
Region-specific irradiance levels for accurate output estimates
Region-specific irradiance levels for accurate output estimates
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Current electricity rates
Based on actual retailer pricing, not outdated averages
Based on actual retailer pricing, not outdated averages
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Real installation data
Performance benchmarks from our existing NZ installations
Performance benchmarks from our existing NZ installations
Solar Savings Insights
Costs, ROI, and real numbers for NZ households.
Residential Solar
Solar Carport and Pergola NZ 2026: Cost, Design, and Real ROI
Solar carports and pergolas cost NZD 14,000 to NZD 45,000 fully installed in NZ. Full cost breakdown, design options, payback timeline, coun...
Residential Solar
What Does 10 Years of Solar Actually Save a NZ Household? (2026 Real Numbers)
Real 10 year savings maths for NZ solar: upfront cost, bill reduction, export credits and three Auckland scenarios that show when a 6.6kW or...
Want exact numbers for your property?
Our free on-site assessment gives you precise savings calculations based on your actual roof, shading, and energy usage.
Book Your Free Assessment →Or call us directly: 0800 288 333