Real-world testing

We test the numbers, not just the specs.

WattVerdict puts plug-in solar systems through a 14-day real-world test, measuring actual energy generation alongside available sunlight so you can see how the hardware performs in real UK conditions — not just on a specification sheet.

How we test →

WattVerdict 14-day real-world test

WattVerdict Development Test System

Live real-world generation data

Demo data Waiting for data
14-DAY TEST PROGRESSDay 14 of 14
100%
1234567891011121314
Sunlight now0W/m²How sunny it is at our test site
Solar output now0WWhat the system is producing right now
Generated today0kWhEnergy produced so far today
Generated during test0kWhTotal from the start of our test
Best day0kWhMost energy produced in one day
Peak power0WHighest output recorded today
POWER THROUGH THE DAY

Today's solar output

Power generatedSunlight level
HOW IT'S PERFORMING
Peak power0 W
Strongest sunlight today0 W/m²
Power peak—time reached
Sunlight peak—time reached
Best day0 kWh
Average per day0 kWh
TEST EQUIPMENT
Solar inverterOffline
AC meterOffline
Irradiance sensorOffline
Data loggerOffline
Mains voltage0.0 V
Current0.00 A
Power factor0.000
Grid frequency0.0 Hz
Last readingNo readings yet
LATEST DATA

Latest readings

Development demo
TimePowerVoltageCurrentSunlight
TEST SETUP

2 × 460W panels · 800W inverter · South-facing · Cheshire, UK

Real-world outdoor results. Weather and site conditions naturally affect generation.
Development preview — the figures shown here are simulated and are not WattVerdict test results.

Keep exploring

See how systems compare on compliance and price.

Compare systems → How we test →