Version 1.5.0 Latest ✨

October 2026

Built-in climate grid for Iraq, so you can size a system with no internet
The calculator now sizes from your real location, with automatic best tilt and direction
Battery sizing follows the load you keep during an outage, with a 20-appliance catalog
Outage survival panel and a clearer battery charge chart
Per-country electricity assumptions and prices
Notification settings you control, and stronger order security in the store

Version 1.4.1

October 2026

Launched Watt Store for verified companies and technicians, with cart, checkout, delivery zones and order tracking
Product options that change the price, and optional brand
Automatic update checks

Version 1.4

October 2026

Products catalog for registered companies and technicians
In-app permanent account deletion for Apple and Google sign-in
Fast calculator on the real sizing engine, with major accuracy fixes for batteries and panels
More realistic multi-day system simulation and a system health check for any system

Version 1.2

September 2026

Changelog