The story.
Most performance dashboards are built by the same companies selling you the hardware. Performance Tracker is the adversarial counterpart: it exists to tell you what your system is actually doing, in language a homeowner can read and a quote a technician can quote. That framing changed everything about how the product looks and feels.
The five phases, applied.
Every build under Juan Diaz LLC runs the same playbook. Here's how it ran for Performance Tracker.
01
Survey
Surveyed a few dozen owners who had bought solar in the previous five years and asked them one question: do you trust the number you see? The answer was almost always no.
02
Blueprint
Designed around two primary users: the homeowner who wants one number, and the installer who wants twenty. Same data, two views, no compromise.
03
Build
Integrations with the major Dutch inverter brands, a normalized yield model, and a clean alerting system that respects the owner's attention.
04
Commission
Verified against actual measured output across seasons — a dashboard that lies about summer is useless in November.
05
Operate
Shipping new integrations as they become available. The honest number wins compound trust over time.
Built on.
Next.jsPostgresTimescaleDBTypeScriptRecharts