Solar Power Monitoring, well that and most of the other energy consumption in a typical house. Mostly I was interested in how my 1900 Watts of solar panels was working.

Solar hot water system, esp8266 as thingspeak logger from serial CSV data

This is live electricity usage/generated data from my home. If the usage is zero it's because the solar panels are covering the load. :)

ESP8266-01 + BME280 + 5V 60mA Solar Panel + 2x AA NiMH rechargeable batteries https://github.com/preechaim/esp8266-bme280-ts

Remote control

Monitorización de los parámetros meteorológicos y eléctricos de un sistema fotovoltaico de 555 Wp.

Temperature of pool and solar panel + weather in Osek u Duchcova, Czech Republic

misure di volt-corrente Batterie e pannello solare

Greenhouse monitor

Solar Inselstation 100WP Solarpanel, Tracer Epever 1210AN, 41 AH Batterie. Raspberry Pi 3B+

Microclimate Weather broadcast for 91977 - Arduino UNO - Temperature & Humidity - Barometric pressure - Ambient light - Argent Anemometer - Argent Weather Vane - ESP8266-01 - WiFi

ESP12 - BME280 - Solar Panel Meteo Stanica Trebelovce (Lucenec)

My Weather Station

Solar Off Grid with tracking.

We have a total of around 20 solar panels on our roof which are connected to a 5kW inverter system (ZeverSolar) which is connected into the house and subsequently the grid.