The best solar water heating systems can now dump their Achilles’ Heel: the CO2 waste coming from using mains electric powered pumps for their solar panels. Here’s how: this invention, a PV powered zero carbon solar differential controller to turn a brushless DC pump on and off when the water in the panel is hot enough to collect. Why was it not done before? Save energy with this amazing invention – it boosts carbon savings in solar water heating systems by 20%. Solar water heaters can now …... more

The change controller takes the power from the solar panels and regulates it down to what the batteries can safely accept. Learn about change controllers for solar power from aprofessional in this free energy conservation video. Expert: Roger Bacon Bio: Roger Bacon is the owner of RGB Home Repair and Renovation in Santa Barbara California. He has experience in all phases of home repair and renovations such as plumbing, heating and solar power. Filmmaker: Diana Bacon... more