Smart energy management

Know if your solar & battery
is actually saving you money

WattNest connects to your Tesla Powerwall today, with support for other battery and inverter brands on the way. It tracks your real energy data, compares every NZ electricity plan, and uses AI to surface specific money-saving recommendations — with actual dollar amounts.

Don't have a Powerwall? Get in touch and we'll let you know when yours is supported.

Get early access
Launching in New Zealand, 2026
14,700+
NZ home battery installations and growing
$25k
Typical system cost per NZ household
$30–100
Average monthly saving vs no solar
$9.99/mo
WattNest subscription — or $99.99/yr
What you get

Real-time monitoring

Live solar generation, home consumption, battery status, and grid flow — updated as it happens.

Performance tracking

Compare your actual monthly generation against what your installer promised. See exactly where you stand.

Electricity plan comparison

Automatically compares every major NZ retailer — Meridian, Contact, Genesis, Mercury — using your actual usage data.

Be first to know when we launch

Early access for NZ Powerwall owners — other brands coming soon. No spam, unsubscribe any time.