The brake regeneration is the efficient dynamics blue bar you see in the dash when coasting
Power from your brake pedal.
Intelligent Alternator Control and Brake Energy Regeneration monitors the battery condition, engaging the alternator as and when the battery requires recharging. This reduces the demands on the engine, reducing fuel consumption and emissions. In addition, when the car's brakes are applied or when coasting downhill, this system automatically engages the alternator to charge the battery, recycling energy that would otherwise be wasted.