My hands-on test results from 5 of the best 100 watt solar panels on the market -- including brands liks Renogy, Newpowa and Rich Solar.| Footprint Hero
A definition and overview of Standard Test Conditions (STC) for solar panels, including cell temperature, solar irradiance, and air mass.| Footprint Hero
Learn the differences between PWM and MPPT solar charge controllers, and find out whether a PWM or MPPT controller is right for you.| Footprint Hero
Hands-on reviews of 5 of the best cheap PWM solar charge controllers in 2024 from top brands like Renogy and Morningstar.| Footprint Hero
My hands-on reviews and test results of 5 of the best MPPT solar charge controllers available -- from brands like Victron, Renogy & EPEver.| Footprint Hero
Calculate solar radiation for your location (city, address, or zip code) with our free solar irradiance calculator.| Footprint Hero
Calculate peak sunlight hours for your location (city, address, or zip code) with our free peak sun hours calculator.| Footprint Hero
Calculate the best tilt angle for your solar panels based on your location (address, city, or zip code) with our free solar panel tilt angle calculator.| Footprint Hero
Find the best direction to face your solar panels for your location (city, zip code, address, lat/lon) with our solar panel azimuth angle calculator.| Footprint Hero
Learn how to test solar panels with and without a multimeter. We cover testing and measuring solar panel output, watts, amps, and voltage.| Footprint Hero