The last step in building your solar array can make or break your system. I break down the process of connecting your ...

Pairing solar panels with energy storage is becoming increasingly popular -- and for good reason. Homeowners who install a battery alongside their rooftop solar array unlock the ability to store solar ...

This is a simple solar boost converter and voltage limiter circuit that charges a 12V battery from a 6V solar panel. It also demonstrates MPPT (Maximum Power Point Tracking) capability. When we think ...

Now that I've got the electric motor mounted in my 1967 VW Beetle, the conversion is picking up steam. I've got a used controller, and I'm ready to start mounting components. That leaves one key bit ...

A few years ago, [Lukas Fässler] needed a solar charge controller and made his own, which he has been improving ever since. The design is now mature, and the High Efficiency MPPT Solar Charger is full ...

As far as electric vehicles go, electric bicycles are famously energy-efficient. Most can easily travel 100 miles (160 km) on around $1 of electricity. But what if instead of paying for that ...