A Simple NZ Guide

Thinking about installing solar panels in New Zealand but not sure if it’s worth it? Here’s everything you need to know in plain english.

1. How Solar Power Works

Solar panels convert sunlight into electricity for your home. During the day, your system powers your appliances first, and any extra energy is either sent back to the grid or stored in a battery for later use.

2. Typical Solar Costs in NZ

A solar-only system for an average Kiwi home costs around $9,000–$13,000 (including GST). Larger homes or those with higher power use may need bigger systems costing up to $15,000–$18,000.  See examples system sizes and prices below.

Example System Sizes		Home Profile	Installed Price Indication	Approx. Power Bill Savings & Payback
	3.5kW 8 Panles	Small home or 1-2 people, modest appliances	$9,000	Savings $950 / year Payback within 9 years*
	6kW 12 Panels	Typical NZ family home, 3-4 people	$12,000	Savings $1,700 / year Payback within 7 years*
	10kW 20 Panels	Large household, high power usage (EV, spa pool etc)	$19,000	Savings $2,900 / year Payback within 7 years*

Please note: Solar pricing isn't standard - every home's different, so each project needs its own quote.

3. Solar Power Savings

Installing solar can reduce your power bills by 40–70%, depending on when you use electricity and how much sunlight your home gets. Adding a solar battery can increase those savings by storing energy for night-time use.

4. Solar Payback Period

Most New Zealand homeowners see their system pay for itself within 6–10 years — faster if you use lots of power during the day or electricity prices keep rising. After that, you’re generating free power for decades.

5. Selling Power Back to the Grid

When your panels produce more power than you use, you’ll earn a small buy-back credit from your power retailer. Rates vary between 8–17 c/kWh, depending on who you’re with.

6. Is Solar Power Worth It for You?

If you:

• Own your home
• Have a north, east or west-facing roof with at least 10 m² of clear space
• Spend $150+ per month on power

Then solar’s likely a smart move. It can cut bills, boost your home’s value, and lock in long-term energy independence.

7. Solar Batteries — Optional but Powerful

Batteries are optional, but they’re great if you use more power at night or want backup during power cuts. They cost around $12,000–$15,000 and slightly extend payback, but add peace of mind and maximise your solar use. If budget’s tight, start with panels now and ensure your system’s battery-ready for the future.

Ready to See What You Could Save?

Use our free solar calculator to estimate your potential savings — or, if you’re ready to get started, get 3 free quotes from trusted, quality installers across New Zealand.

👉 Try the Solar Calculator | Get 3 Free Quotes