Save money, reduce emissions, and track costs by automatically charging at the cheapest and cleanest times each day. Optiwatt is 100% free, works with any car charger or plug, and is a must-have improvement to your electric vehicle. TRACK * Optiwatt builds your exact electricity rates from your utility plan, so you can effortlessly track how much you spend charging your EV * Visualize costs, gas savings, and battery efficiency statistics for every charge SAVE * Optiwatt automatically schedules