Smart energy management
Know if your Powerwall
is actually saving you money
WattNest connects to your Tesla Powerwall, tracks your real energy data, compares every NZ electricity plan, and uses AI to surface specific money-saving recommendations — with actual dollar amounts.
Get early access
Launching in New Zealand, 2026
5,000+
NZ Powerwall installations and growing
$25k
Typical system cost per NZ household
$30–100
Average monthly saving vs no solar
$19/mo
WattNest subscription — homeowner plan
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.
AI-powered insights
Not vague advice — specific recommendations with real dollar amounts. "Switching to Contact would save you $47/month based on your usage."
Be first to know when we launch
Early access for NZ Powerwall owners. No spam, unsubscribe any time.