
Adding a rooftop solar array to your home or business can be exciting and expensive. As such, it might be tempting to cut corners to keep costs down — but some upgrades are simply much cheaper to do while your solar system is being installed than they …

Whether it’s to keep the lights on after a natural disaster or just to avoid peak energy rates, more people than ever are adding battery energy storage to their home solar systems — but li-ion batteries aren’t the only option. The new WATT Fuel Cell us…