Tools & Calculators

Free Home Solar Calculator: Estimate the Right Solar & Battery System for Your Home

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A bright, modern suburban home with sleek rooftop solar panels under a clear blue sky. In the foreground, a realistic tablet displays a stylish home solar planning dashboard featuring colourful charts, a recommended solar panel system size, battery capacity, estimated installation cost, annual savings, and energy usage graphs.

Thinking about installing solar but unsure what size system your home actually needs? Choosing the right solar setup isn’t just about fitting as many panels as possible. An oversized system can cost more than necessary, while an undersized system may not deliver the savings or energy independence you’re hoping for. Our Free Home Solar Calculator … Read more

Should I Go Solar in New Zealand? The Complete Guide

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A New Zealand home with sleek solar panels installed on a north-facing roof. The home is surrounded by native greenery with rolling hills and distant mountains in the background. Family is standing outside admiring the view.

Introduction If you’ve been wondering whether solar panels are worth the investment, you’re not alone. Across New Zealand, more homeowners are looking for ways to reduce rising electricity costs, improve energy independence and make their homes more sustainable. Advances in solar technology, improved battery storage and greater awareness of renewable energy have made solar more … Read more

Try the Eco TIGA Eco Swap Finder

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Eco Swap Finder" helps you discover sustainable alternatives to everyday household products in seconds.

Looking for simple ways to reduce waste without completely changing your lifestyle? The Eco Swap Finder helps you discover sustainable alternatives to everyday household products in seconds. Whether you’re replacing plastic wrap, disposable bottles, paper towels, or bathroom products, this free tool makes eco-friendly living feel easier and more achievable. What Is the Eco Swap … Read more

Portable Power Calculator

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I built this tool because I got tired of guessing battery runtime.

Free Portable Power Station Calculator (NZ Camping & Home Backup) Ever wondered what size portable power station you actually need? I originally built this tool because I got tired of guessing battery runtime.This free calculator takes the guesswork out of it in seconds. Whether you’re: This tool helps you find the right battery size for … Read more