Warden guides
Understand your power bill. Then beat it.
Plain-English guides to NZ and Australian electricity markets — how pricing works, why bills spike, and how smart households are saving money they didn't know they were leaving on the table.
Is spot pricing worth it in NZ? What you'll actually save
Spot pricing sounds risky. Prices can go negative or hit thousands of dollars per megawatt-hour in the same week. But the data tells a different story: households that switch — and manage their usage even a little — consistently come out ahead. This is the full case, numbers included.
How does the NZ electricity market work? A homeowner's guide
Your power bill is made up of several moving parts — and spot price is just one of them. Why prices swing from 3¢ to $3 per kWh, and what drives those overnight spikes.
AU marketHow does the Australian electricity market work? The homeowner version
The NEM spans five states and runs on 5-minute dispatch prices most households never see. Why SA prices go negative, and what it means for your solar and battery.
How it worksRemote hot water control, done properly
Your hot water cylinder is the single easiest load in your house to shift. Here's how Warden controls it automatically — and keeps working even when the internet doesn't.
NZ market · Vector EDBWhat's actually in your electricity bill on a spot plan?
Standard retail daily charges can hit $5/day — but Vector's published pricing schedule tells a different story. Here's what each component actually costs, and why spot pricing is the first time you see a real breakdown.