Owner GUIDE
Thinking about going solar?
At TEG, we call it like we see it.
No fluff, no sales talk — just honest advice and straight-up facts you can count on.
Here’s what you should know.
Power prices keep going up — no surprises there. Chances are, you’ve felt it too. Maybe you’ve switched providers a couple of times, tried out different plans, or shifted when and how you use power — all to try keep those bills in check.
Like many Kiwis, you’re probably looking into solar now.
And yes — the right solar setup, installed properly, can absolutely help bring those bills down. But not every roof’s a good fit. And not every system lives up to the sales pitch.
That’s why we’ve put together this guide — honest, practical advice, in plain English. We’ll walk you through what to watch for, what to steer clear of, and how to make sure the system you choose actually delivers the savings you’re hoping for.
Because with solar, you don’t often get a second crack at it. That’s where we come in — to help you get it right the first time.
The right system starts here.
Step 1 - Quick Check
Want to know what solar could cost for your home?
Enter your address, your power rates, and your annual energy usage. We’ll calculate the system size that fits your home and give you an upfront price estimate, including installation.
If it works for your budget, you’re ready for the next step — exploring a system designed for your specific needs.
The tool to start your estimate is at the bottom of this page.
We recommend reviewing this guide first. The more you know, the more accurate your system and savings will be.
Good stuff — you’ve got your estimate sorted. Now it’s time to make sure it’s spot on for your place.
Every home’s different, so we’ll need some info from you to fine-tune the design and check it all stacks up.
Here’s what we’ll need:
- A recent power bill (ideally covering 12 months).
- Your half-hourly usage data from the past year (CSV format).
Most power companies let you download this through their website or app, or you can request it by email.
Getting these details means we’re not just guessing — we’re designing your system for how you actually live.
Why does this matter?
You wouldn’t take a stab in the dark on a 25-year investment.
Every home’s different. Without the right data, designing a solar system is really just guesswork. And if you can’t measure the risk, that “good deal” could end up costing you way more than you bargained for.
That’s not how we roll.
We’re not in this for quick wins. We don’t risk our reputation on systems we can’t stand behind. Every system we put our name to is properly modelled, independently checked, and designed to last. Because with solar, you don’t often get a second crack at it.
We build it like it’s going on our own roof — done properly, or not at all.
Engineered for performance.
- Find the light.
We start by understanding how the sun moves across your roof — hour by hour, season by season — and place each panel where it matters most.
- Clear the path.
We quietly work around anything that blocks the light — vents, skylights, chimneys, aerials, heat pumps, nearby trees, even tall buildings.
So your system runs beautifully, without compromise.
- Precision Placement
We create a custom layout based on how you use energy and the unique shape of your roof — so every panel is placed exactly where it should be.
- Precision Placement
We create a custom layout based on how you use energy and the unique shape of your roof — so every panel is placed exactly where it should be.
Impressive
Everything’s ready.
I value how TEG works, clear, thoughtful, and built around real needs.
This isn’t just a system on the roof, it’s a choice made on trust, care, and long-term value.
Can’t wait to see it come to life.