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SUSTAINABLE ENERGY

Residential Solar
Systems

Save money, go green and gain energy independence - upgrade your home with World Solar and take control of your power.

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Buyers Guide
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All in one

Tesla Powerwall 3

Tesla Powerwall 3 is available from World Solar!  If you are looking for an all in one system then this is it.
 
  • The Powerwall 3 not only stores power but has its own built-in DC inverter which connects to your panels, whereas the Tesla Powerwall 2 can only store power.
  • Powerwall 3 stores your solar energy for backup protection, so when the grid goes down your power stays on.
  • Powerwall home battery continues Tesla’s mission and makes clean energy accessible to all, day and night.
Enquire about Tesla Powerwall 3
Modern house exterior at dusk with large windows illuminated from inside and a Tesla Powerwall battery mounted on the outside wall.

Installation Capacity

What type of solar installation do I need?

This all depends on your particular energy needs, your budget and if you wish to be fully grid independent, or just same some money on your power bills.  This is what we see typically.

Single batters and ten solar panels

Low Power User

Best For: smaller households with an annual power consumption under 9,000 kwh hours per year.

  • Recommended 4-5kw system
  • Basic battery ready package
  • Includes access to online tools and reporting
  • Store power to use at night with battery storage
  • Sell your excess power back to the grid
10kw battery and 15 solar panels

Medium Power User

Best For: average households with an annual power consumption over 9,000 kwh per year.

  • Recommended 5-7kw system
  • Standard battery ready package
  • Includes access to online tools and reporting
  • Store power to use at night with battery storage
  • Sell your excess power back to the grid
15kw battery and 20 solar panels

High Power User

Best For: average or larger households with an annual power consumption over 12,000 kwh per year

  • Recommended 7kw+ system
  • Advanced battery ready package
  • Includes access to online tools and reporting
  • Store power to use at night with higher capacity battery storage
  • Sell your excess power back to the grid
Enquire Now
Single batters and ten solar panels 10kw battery and 15 solar panels 15kw battery and 20 solar panels
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Low Power User

Best For: smaller households with an annual power consumption under 9,000 kwh hours per year.

  • Recommended 4-5kw system
  • Basic battery ready package
  • Includes access to online tools and reporting
  • Store power to use at night with battery storage
  • Sell your excess power back to the grid

Medium Power User

Best For: average households with an annual power consumption over 9,000 kwh per year.

  • Recommended 5-7kw system
  • Standard battery ready package
  • Includes access to online tools and reporting
  • Store power to use at night with battery storage
  • Sell your excess power back to the grid

High Power User

Best For: average or larger households with an annual power consumption over 12,000 kwh per year

  • Recommended 7kw+ system
  • Advanced battery ready package
  • Includes access to online tools and reporting
  • Store power to use at night with higher capacity battery storage
  • Sell your excess power back to the grid
Enquire Now

Need help?

Buyers Guide

Keen to get started but you still have a few questions? Our in-house solar experts have created a complete guide to residential solar power systems. Inside you’ll find answers to questions like:

  • Is solar a good investment?
  • Is my roof solar panel ready?
  • Do I need a storage battery?
  • How do I choose the right system?
  • How will World Solar support my ongoing operation?

For this information and so much more, download our free Buyers Guide today.

Download Guide
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WHY WORLD SOLAR?

Peace of Mind

Deal with experts

Over 20 years solar experience across homes, businesses and farms.
A nationwide team of highly skilled solar technicians and engineers.
A total focus on solar - it’s all we do

Aerial view of two workers installing solar panels on a dark metal house roof, with several panels already mounted and tools visible.

Seriously good service

14 locations nationwide.
Friendly knowledgeable experts.
Ongoing support with your solar system.
Best in class warranties.

A worker wearing safety gear installs solar panels on a rooftop under a blue sky.

Quality and Value

Only the best brands at the best prices.
No hidden set up or maintenance costs, ever.
Monthly savings from day 1.

Solar panels installed on a sloped metal roof with trees and power lines in the background under a partly cloudy sky.

FAQ

Have Questions?
Ask Us

How much does residential solar cost in New Zealand?

In New Zealand, residential solar typically costs:

  • $9,000 – $12,000 for a standard 3–5 kW system (most common home size)
  • $12,000 – $18,000+ for a larger 6–8 kW system
  • Add $10,000 – $18,000 if you include battery storage

The exact price depends on system size, roof layout, panel/inverter brand, installation complexity, and whether you add batteries or EV charging.

What size solar system is right for my household?

A good rule is if you choose a system that covers ~60–100% of your annual electricity use. 

Can I get solar panels if I have an older home?

Yes, you can install solar panels on an older home in New Zealand as long as the roof is suitable.
Most older houses are fine if:

  • The roof is structurally sound (no rot or major damage)
  • The roof angle and orientation get reasonable sun (north, north-east or north-west is best)
  • There’s space available without too many shade issues (trees/chimneys)
How do I know if my roof is suitable for solar panels?

Your roof is suitable for solar if it’s structurally sound, has good sun exposure (ideally north-facing with minimal shade), enough clear space for panels, and meets current electrical standards.

What happens to my solar panels during a power cut?

During a power cut, most standard grid-connected solar systems automatically switch off for safety, so your panels won’t power your home even if the sun is shining.  If you have a battery with backup capability or a specialised hybrid/off-grid system, you can keep selected circuits running during an outage.

Do solar panels increase my home's value in New Zealand?

Yes — solar panels can increase your home’s value in New Zealand, because many buyers see them as a way to reduce future electricity costs and make the property more attractive. Studies suggest homes with owned solar systems often sell for higher prices—sometimes by several thousand dollars or more—than similar homes without solar.

How long do residential solar panels last?

Most residential solar panels last 25–30 years or more, and many continue producing power well beyond that, just at slightly reduced efficiency over time.

OUR TRUSTED BRANDS

Working with only the best brands in the business

You may not recongnise them, but we do. 
These brands power the solar revolution not just in New Zealand, but across the world.
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huawei logo
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enphase logo
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Interested in Solar for your Home?

How do I go about getting Solar installed for my Home?

Ready to power your home with clean, affordable solar energy?
World Solar makes the process simple and tailored to your needs. Follow these steps to get started with a system that saves money and supports New Zealand’s sustainable future.

A calculator rests on top of a solar panel, suggesting analysis or calculation related to solar energy.
01

Check Your Energy Needs

Review your electricity bills to estimate annual usage (kWh). Homes may need 4-7kW systems; businesses may require larger setups based on operational demands.

Discover Your Savings
Modern two-story house with solar panels on the roof, a two-car garage, landscaped yard, and surrounded by other homes in a suburban neighborhood.
02

Assess Your Property

Ensure your roof has space, north-facing orientation, and minimal shading. Our team offers free site assessments across NZ.

Modern house exterior at dusk with large windows illuminated from inside and a Tesla Powerwall battery mounted on the outside wall.
03

Explore System Options

Choose high-efficiency panels (e.g., Trina Solar, Longi) and inverters (e.g., Huawei, SolarEdge). Add battery storage like Tesla Powerwall 3 for energy independence.

Rows of solar panels in a field capture sunlight at sunset, with a clear sky and some clouds in the background.
04

Get a Custom Quote

Use our online savings calculator or contact us for a free, no-obligation quote. Discover payback periods (often 5-7 years) and financing options.

Discover Your Savings
Solar panels installed on a sloped metal roof with trees and power lines in the background under a partly cloudy sky.
05

Confirm Incentives & Compliance

We’ll guide you through any rebates, grid connection rules, and local building codes to maximize savings and ensure a smooth process.

Two workers install solar panels on a red tiled roof under a clear blue sky.
06

Professional Installation

Our certified installers handle everything, delivering a reliable system with 25+ year warranties and minimal maintenance.

Is Solar Right For you?

DON’T TAKE OUR WORD FOR IT

What our customers say

World Solar provided an informative and efficient service from the initial quote to the completion of the installation.  The Sales Rep provided comprehensive information and answered all our questions on and off site.  All communications from the administration staff were prompt and supportive.  We were kept informed of the process throughout.  The installation team was efficient, tidy and helpful.  The whole process has been easy and stress free.  Thanks Team.

Karen Major

Home Owner

We thought about installing solar panels but had no idea were to start.  World Solar from the beginning were very professional with Doone walking us through the process in an easy step by step process.  We asked many questions and each was answered with a professional and logical explanation.  The installation date was set that suited us.  On installation day the team of 3 arrived on time and set to work.   The team were professional, efficient and courteous.  We felt comfortable with the team working in our home.  Highly recommend.

Marcus and Dawn McMahon

Home Owners

Very easy to deal with, fantastic team very professional, super friendly went above and beyond my expectations, to make it suit my wishes for position.

Jade Thomson

Home Owner

From first contact to switch-on, World Solar were outstanding.  Clear advice, no sales pressure and a team that actually knows their stuff.  The install was fast, tidy, and done right the first time.  Communication was sharp, timelines were met, and the system is performing exactly as promised – if not better.  It’s rare to find a company this professional, honest and easy to deal with.  If you’re thinking about solar, stop shopping around and call these guys.  Highly Recommend.

Sam & Diane Peterson

Home Owners

This has been such a great experience with amazing service. The quote was fast and the information provided helped make an informed decision. The support and contact from the office staff was incredible. Always fast to reply and helpful, they went out of their way to help and answer questions. The install team were great guys that did a fantastic job, fast, professional and respectful of the space and clean up. All up a great company to deal with, highly recommend them.

Amanda Simpson

Home Owner

HOW MUCH CAN YOU SAVE?

As the cost of electricity continues to soar, going solar provides a unique opportunity to save. By generating your own energy, you’ll gain independence from the power company and their inevitable rate hikes. Try our Solar Savings Calculator to discover how much you could be saving every month.

Calculate your saving
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