He managed to build his own monitor using an Arduino. The trick of this build has to do with how the system works. The panel includes an LED light that blinks 1000 times for each kWh of electricity.

The brains are an Arduino glued to a large amount of solar support electronics and the online energy monitor component is covered by an ESP8266. The construction works quite well.

How the Code Works The code continuously monitors the light level through a photocell connected to LIGHT_PIN (A0). It then calculates the resistance of the photocell, which changes with light ...

The most prevalent practice in solar monitoring is designing a photovoltaic system that accommodates various load conditions and uses a microcontroller to measure voltage and current. This paper ...

If you want to DIY solution to your energy consumption, here's how modders created a home energy monitor from an Arduino, some wiring, and a little custom code.